Tag Archives: vertical shaft

China Double-Shaft Screw Cone Powder Mixer Double Screw Fertilizer Powder Cone Vertical Ribbon Mixer Machine screw conveyor shaft alignment

Mixer Type: Screw
Barrel Volume (L): 1000
Material Processed: Plastics, Chemicals, Food, Medicine, Powder Material
Max. Loading Volume (L): 600 L
Range of Spindle Speed(r.p.m): 1 – 2 r.p.m
Max. Loading Capacity: 1000L
Weight (KG): 1200 KG
Material: SUS304, SUS304L, SUS316, SUS316L, Ti, Hastelloy
Condition: New
Product Type: Detergent Powder
Application: Powder, Powder Medium Mixing
Additional Capabilities: Drying
Voltage: 220V/380V or as per request, 220V/380V or as per request
Dimension(L*W*H): 1500*1000mm
Power (kW): 5 kW
Warranty: 1.5 years, 1.5 year after shipment
Key Selling Points: Multifunctional
Applicable Industries: Building Material Shops, Manufacturing Plant, Food & Beverage Factory, Farms, Home Use, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company
Showroom Location: None
Marketing Type: Hot Product 2571
Machinery Test Report: Provided
Video outgoing-inspection: Provided
Warranty of core components: 1.5 years
Core Components: Motor, Gear, PLC, Bearing
Conical Barrel Material: mild steel, stainless steel, anti-corrosive coating
Outer Barrel Treatment: mirror-polishing, Quality agricultural tractor parts pto shaft lemon tube for farm equipment brushed SS
Mixing Type: screw type, ribbon type, paddle type
Other Function: liquid spraying device, heating or cooling jacket
Material Discharge: manual valve, pneumatic butterfly valve, spherical valve, ball valve
Barrel Volume: 200L~12000L
Product Name: Double-Shaft Vertical Screw Cone Powder Mixer
Packaging Details: Package for double screw fertilizer powder cone ribbon mixer:Plastic Film Wrapping for anti-moisture;Fumigation Free Wood Box for strong protection;Necessary steel frame or wood frame inside for strength support.
Port: HangZhou Port, ZheJiang Port, HangZhou Port or as per request

A Double Screw Cone Mixer is specially used for powder mixing, it can mix medium like powder, granules, crystallized particles, pellets and agglomeration or caking, also mixing with spraying liquids.Suspending arm of double screw cone mixer has 2 blending screws which are of different length and diameter. Suspending arm does revolution and the 2 asymmetric screws make self rotation at the same time, which makes the powdery materials elevated up and down and also does circular movement. So materials can be mixed completely and evenly under 4 kinds of movements. Applications Various Powder Mixing Technology:Chemical Industry, Pesticide, Dyestuff, Food, Battery Material, Rare Earth Powder, etc. Specification

Technical Parameters (A Type & B Type)
Total Volume (m3)0.3~12
Load Factor0.6
Output (t/h)0.3~0.1 — 15~30
Total Power A (kw)3.55~23.5
Total Power B (kw)2.2~22
Material Finess (mesh)20~450
Mixing Effect≤1.5%
Revolve Speed (rpm)2
Self Rotary Speed A (rpm)57~143
Self Rotary Speed B (rpm)57~143
Max Diameter (mm)930~3200
Approx. Weight (kg)550~4150
Advantages of a Double Screw Conical Mixer1. It can mix a large amount of materials each time, it’s also applied in requirement of gentle mixing and no-leftover discharge.2. This machine is characterized by gentle, high accurate mixing, 110v 220v 40w single phase electric motor with speed controller 5GN7.5K good homogeneity and no damage to product.3. Double screw mixing machine is also suitable for intermediate storage of temporary blending. * Effective mixing working, with low power consumption and no noise during operation.* Widely used in various powder mixing process. Related Instruments and DevicesThe Double Screw Conical Mixer consist of conical barrel, motor & reducer, screws, main shaft, PLC controller, etc. Various Discharge Styles There are many discharging ways for customers to choose: manual valve, pneumatic butterfly valve, spherical valve, ball valve, etc. Other StylesAccording to various working medium and different mixing request, there are many other styles:Motor: Twin Motor Style, One Motor Style;Discharge: Double Pneumatic Discharge Style, equip conveyor on bottom or on feeding port;Surface Treatment: Mirror-Polish Style, Brush Treatment Style; Packing & Delivery Plastic film wrapping against moisture;Wood Case for spare parts;Strong fixture for whole set equipment inside container;All wood used in package is Fumigation free type, no need extra inspection during custom. Company Profile With 10 years experience in chemical industry, HangZhou Chem-Equip Machinery Co., Ltd is a professional supplier in various chemical equipment, we help customer design, develop and fabricate suitable production lines, 3KW DC Motor 12V factory direct sale MODEL ZD1973BF from initial chemical process design, to workshop building and long term maintaince.We have own factories in HangZhou and HangZhou area, product covers Reactor, Pressure Vessel, Mixer, Kneader, Sand Miller, Filter, Dryer etc, almost cover all chemical industry. With our Chemical Process Designer, ASME AI (Authorized Inspector), American CWI (Certified Welding Inspector), we dedicate in a Turn-Key solution for customers who wants to build up new factory or expand new production lines, in an efficient and safety way. FAQ Our ServicePre-Sale StageProvide Chemical Process , Project Drawing and Suitable Equipment Model according to customer’s request, for accurate design and quote, please kindly advise below: Production StageWhole time report for manufacture status;Inspection video for quality checking;Full set Engineering Documents, include User Manual, General Drawing, Electric Circuit Drawing, All Related Test Report, Approval Certificate. After Sale StageLife long service for all equipment; Free spare parts in warranty period;Discount price for all spare parts after warranty period;Technical consulting is always for free. Training & POS8R male rod end joint bearing POS8 InstallationArrange engineer to assist customer in equipment assembly and installation;Training workers to use machine properly.

screwshaft

Lead Screws and Clamp Style Collars

If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:

Acme thread

The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.

Lead screw coatings

The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
screwshaft

Clamp style collars

The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these two styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
screwshaft

Ball screw nut

The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during one rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with one or two independent closed paths. Multi-circuit ball nuts have two or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.

China Double-Shaft Screw Cone Powder Mixer Double Screw Fertilizer Powder Cone Vertical Ribbon Mixer Machine screw conveyor shaft alignmentChina Double-Shaft Screw Cone Powder Mixer Double Screw Fertilizer Powder Cone Vertical Ribbon Mixer Machine screw conveyor shaft alignment
editor by czh 2023-06-27

China best Vertical Shaft Plastics Nitric Acid in Line Chemical Centrifugal Pump Prices near me supplier

Product Description

Product Description

Product Name:
Vertical Shaft Plastics Nitric Acid In Line Chemical Centrifugal Pump Prices
Summary:
    We have more than 20 types chemical process pump, such as API-610 standard pump ,horizontal pump, submersible pump, vertical pump,semi-submersible pump, fluoroplastic pump, axial pump ,gear pump.etc 
Application:
   They are used for transmission of liquids (oil, sea water ,sulphuric acid, phosphoric acid, H2SiF6acid, alkali liquid)  with lowor high temperature,
neutral or corrosive liquids ,or liquids with solid granular and widely used in petroleum chemical industry ,oil refining industry, paper ,pulp industry ,
sugar industry ,mining ,etc
   Lots of material can be chose for different working condition, such as cast steel ,stainless steel 304,316,2205,904L, Hartz alloy C276,C22,
nickel-base alloy GH600, PVDF,PP, UHMWPE-lining .etc
   Pump a strong seal system :packing seal ,double face mechnical seal ,cartridge mechnical seal ,API682 flushing syestem. 
Advantage:
    Due to the German’s advanced sealing technology, the service life of the seal is more than 2 times than common seal.Stable performance / Low cavitations/ High efficiency (even if not at full capacity).   

We can manufacture stainless steel series/non – metal pump/API 610 Series:
Below photos are only for  reference only:

Detailed Photos

Stainless steel pump:
API 610 pump :
Non – metal pump:

Product list

Company Profile

       ZheJiang wangyuan industry pump Co.,ltd is a specialized manufacturer/supplier for thechemical pump,is located in HangZhou city (Near ZheJiang ).
With more than 30 years R&D, manufacturing and sales experience, we can supply many kinds of chemical pump with very good quality. and we have 
got ISO9001,ISO14001,ISO45001 certificates, and is a  High – Tech Enterprise in China .

      

Design

     The product design of the technology R&D center uses computer-aided systems for design,analysis and calculation. 3D-software such as SOLIDWORKS can be used for 3D simulation design of product structure. It can also use various professional software for hydraulic analysis and calculation, and use finite element analysis with professional software to evaluate product strength, reliability and safety.
The products designed by  the R&D center are in line with international mainstream standards such as API610, ISO, GB, ANSI and HI.
The design of nuclear power pumps can also be carried out according to ASME standards .

 

Certifications

FAQ

Q1: Are you manufacturer or trading company?
       Our company is a professional producer for pumps, and export pumps by ourselves.
 

Q2: What’s your business range?

       We manufacture chemical centrifugal pump, self-sucking pump, vertical/horizontal multistage pump,sewage pump, water pump,oil pump, screw pump, diaphragm pump, fire pump, constant pressure VFD water supply system and so on. 
 

Q3: How to check and verify the products?

       We support video inspection and verification .
 

Q4: What are your payment terms?

       Common terms: T/T 30% deposit, balance payment before shipment, L/C or Trade Assurance of alibaba.
 

Q5: How about warranty and after-service?

       12 months warranty time after receiving days, not include quick-wear parts and default phase.We promise 24 hours action for your problems.

     

Screws and Screw Shafts

A screw is a mechanical device that holds objects together. Screws are usually forged or machined. They are also used in screw jacks and press-fitted vises. Their self-locking properties make them a popular choice in many different industries. Here are some of the benefits of screws and how they work. Also read about their self-locking properties. The following information will help you choose the right screw for your application.

Machined screw shaft

A machined screw shaft can be made of various materials, depending on the application. Screw shafts can be made from stainless steel, brass, bronze, titanium, or iron. Most manufacturers use high-precision CNC machines or lathes to manufacture these products. These products come in many sizes and shapes, and they have varying applications. Different materials are used for different sizes and shapes. Here are some examples of what you can use these screws for:
Screws are widely used in many applications. One of the most common uses is in holding objects together. This type of fastener is used in screw jacks, vises, and screw presses. The thread pitch of a screw can vary. Generally, a smaller pitch results in greater mechanical advantage. Hence, a machined screw shaft should be sized appropriately. This ensures that your product will last for a long time.
A machined screw shaft should be compatible with various threading systems. In general, the ASME system is used for threaded parts. The threaded hole occupies most of the shaft. The thread of the bolt occupy either part of the shaft, or the entire one. There are also alternatives to bolts, including riveting, rolling pins, and pinned shafts. These alternatives are not widely used today, but they are useful for certain niche applications.
If you are using a ball screw, you can choose to anneal the screw shaft. To anneal the screw shaft, use a water-soaked rag as a heat barrier. You can choose from 2 different options, depending on your application. One option is to cover the screw shaft with a dust-proof enclosure. Alternatively, you can install a protective heat barrier over the screw shaft. You can also choose to cover the screw shaft with a dust-proof machine.
If you need a smaller size, you can choose a smaller screw. It may be smaller than a quarter of an inch, but it may still be compatible with another part. The smaller ones, however, will often have a corresponding mating part. These parts are typically denominated by their ANSI numerical size designation, which does not indicate threads-per-inch. There is an industry standard for screw sizes that is a little easier to understand.
screwshaft

Ball screw nut

When choosing a Ball screw nut for a screw shaft, it is important to consider the critical speed of the machine. This value excites the natural frequency of a screw and determines how fast it can be turned. In other words, it varies with the screw diameter and unsupported length. It also depends on the screw shaft’s diameter and end fixity. Depending on the application, the nut can be run at a maximum speed of about 80% of its theoretical critical speed.
The inner return of a ball nut is a cross-over deflector that forces the balls to climb over the crest of the screw. In 1 revolution of the screw, a ball will cross over the nut crest to return to the screw. Similarly, the outer circuit is a circular shape. Both flanges have 1 contact point on the ball shaft, and the nut is connected to the screw shaft by a screw.
The accuracy of ball screws depends on several factors, including the manufacturing precision of the ball grooves, the compactness of the assembly, and the set-up precision of the nut. Depending on the application, the lead accuracy of a ball screw nut may vary significantly. To improve lead accuracy, preloading, and lubrication are important. Ewellix ball screw assembly specialists can help you determine the best option for your application.
A ball screw nut should be preloaded prior to installation in order to achieve the expected service life. The smallest amount of preload required can reduce a ball screw’s calculated life by as much as 90 percent. Using a lubricant of a standard grade is recommended. Some lubricants contain additives. Using grease or oil in place of oil can prolong the life of the screw.
A ball screw nut is a type of threaded nut that is used in a number of different applications. It works similar to a ball bearing in that it contains hardened steel balls that move along a series of inclined races. When choosing a ball screw nut, engineers should consider the following factors: speed, life span, mounting, and lubrication. In addition, there are other considerations, such as the environment in which the screw is used.
screwshaft

Self-locking property of screw shaft

A self-locking screw is 1 that is capable of rotating without the use of a lock washer or bolt. This property is dependent on a number of factors, but 1 of them is the pitch angle of the thread. A screw with a small pitch angle is less likely to self-lock, while a large pitch angle is more likely to spontaneously rotate. The limiting angle of a self-locking thread can be calculated by calculating the torque Mkdw at which the screw is first released.
The pitch angle of the screw’s threads and its coefficient of friction determine the self-locking function of the screw. Other factors that affect its self-locking function include environmental conditions, high or low temperature, and vibration. Self-locking screws are often used in single-line applications and are limited by the size of their pitch. Therefore, the self-locking property of the screw shaft depends on the specific application.
The self-locking feature of a screw is an important factor. If a screw is not in a state of motion, it can be a dangerous or unusable machine. The self-locking property of a screw is critical in many applications, from corkscrews to threaded pipe joints. Screws are also used as power linkages, although their use is rarely necessary for high-power operations. In the archimedes’ screw, for example, the blades of the screw rotate around an axis. A screw conveyor uses a rotating helical chamber to move materials. A micrometer uses a precision-calibrated screw to measure length.
Self-locking screws are commonly used in lead screw technology. Their pitch and coefficient of friction are important factors in determining the self-locking property of screws. This property is advantageous in many applications because it eliminates the need for a costly brake. Its self-locking property means that the screw will be secure without requiring a special kind of force or torque. There are many other factors that contribute to the self-locking property of a screw, but this is the most common factor.
Screws with right-hand threads have threads that angle up to the right. The opposite is true for left-hand screws. While turning a screw counter-clockwise will loosen it, a right-handed person will use a right-handed thumb-up to turn it. Similarly, a left-handed person will use their thumb to turn a screw counter-clockwise. And vice versa.
screwshaft

Materials used to manufacture screw shaft

Many materials are commonly used to manufacture screw shafts. The most common are steel, stainless steel, brass, bronze, and titanium. These materials have advantages and disadvantages that make them good candidates for screw production. Some screw types are also made of copper to fight corrosion and ensure durability over time. Other materials include nylon, Teflon, and aluminum. Brass screws are lightweight and have aesthetic appeal. The choice of material for a screw shaft depends on the use it will be made for.
Shafts are typically produced using 3 steps. Screws are manufactured from large coils, wire, or round bar stock. After these are produced, the blanks are cut to the appropriate length and cold headed. This cold working process pressudes features into the screw head. More complicated screw shapes may require 2 heading processes to achieve the desired shape. The process is very precise and accurate, so it is an ideal choice for screw manufacturing.
The type of material used to manufacture a screw shaft is crucial for the function it will serve. The type of material chosen will depend on where the screw is being used. If the screw is for an indoor project, you can opt for a cheaper, low-tech screw. But if the screw is for an outdoor project, you’ll need to use a specific type of screw. This is because outdoor screws will be exposed to humidity and temperature changes. Some screws may even be coated with a protective coating to protect them from the elements.
Screws can also be self-threading and self-tapping. The self-threading or self-tapping screw creates a complementary helix within the material. Other screws are made with a thread which cuts into the material it fastens. Other types of screws create a helical groove on softer material to provide compression. The most common uses of a screw include holding 2 components together.
There are many types of bolts available. Some are more expensive than others, but they are generally more resistant to corrosion. They can also be made from stainless steel or aluminum. But they require high-strength materials. If you’re wondering what screws are, consider this article. There are tons of options available for screw shaft manufacturing. You’ll be surprised how versatile they can be! The choice is yours, and you can be confident that you’ll find the screw shaft that will best fit your application.

China best Vertical Shaft Plastics Nitric Acid in Line Chemical Centrifugal Pump Prices near me supplier China best Vertical Shaft Plastics Nitric Acid in Line Chemical Centrifugal Pump Prices near me supplier

China best 200W 400W 550W 700W AC Gear Motor Horizontal and Vertical Type 18mm Shaft wholesaler

Product Description

200w 400w 550w 700w ac gear motor horizontal and vertical type 18mm shaft

1. Features of GH(V)-18
Outpower: 0.1kW, 02kW, 0.4kW, 0.55kW,0.7kW
Speed: 30-500rpm

2. Specifications of GH(V)-18

Note: It’s the typical specification for reference only, We can customize per your requirement.

Company Profile

1. About us

Main Products: 1) DC Brush motor: 6-130mm diameter, 0.01-1000W output power
                           2) DC Spur Gear Motor: 12-110mm diameter, 0.1-300W output power
                           3) DC Planeary Gear Motor: 10-82mm diameter, 0.1-100W output power 
                           4) Brushless DC Motor: 28-110mm, 5-1500W output power 
                           5) Stepper Motor: NEMA 08 to NEMA 43, Can with gearbox and lead screw
                           6) Servo Motor: 42mm to 130mm diameter, 50-4000w 
                           7) AC Gear Motor: 49 to 100mm diameter, 6-140 output power 

2. Production

Production line

Packing&Delivery

Certifications

Customer Visits

FAQ
Q: What’s your main products?
A:We currently produce Brushed Dc Motors, Brushed Dc gear Motors, Planetary Dc Gear Motors, Brushless Dc Motors, Stepper motors and Ac Motors etc. You can check the specifications for above motors on our website and you can email us to recommend needed motors per your specification too.

Q:How to select a suitable motor?
A:If you have motor pictures or drawings to show us, or you have detailed specs like voltage, speed, torque, motor size, working mode of the motor, needed life time and noise level etc, please do not hesitate to let us know, then we can recommend suitable motor per your request accordingly.

Q: Do you have customized service for your standard motors?
A:Yes, we can customize per your request for the voltage, speed, torque and shaft size/shape. If you need additional wires/cables soldered on the terminal or need to add connectors, or capacitors or EMC we can make it too.

Q:Can I have samples for testing first?
A:Yes, definitely you can. After confirmed the needed motor specs, we will quote and provide a proforma invoice for samples, once we get the payment, we will get a PASS from our account department to proceed samples accordingly.

Q:How do you make sure motor quality?
A:We have our own inspection procedures: for incoming materials, we have signed sample and drawing to make sure qualified incoming materials; for production process, we have tour inspection in the process and final inspection to make sure qualified products before shipping.

Q:What’s your lead time?
A:Generally speaking, our regular standard product will need 25-30days, a bit longer for customized products. But we are very flexible on the lead time, it will depends on the specific orders

Q:What’s your payment term?
A:For all our new customers, we will need 40% deposite, 60% paid before shipment.

Q:When will you reply after got my inquiries?
A:We will response within 24 hours once get your inquires.

Q:Can I visit your company?
A:Yes, welcome to visit our company, but please let us know at least 2 weeks in advance to help us make sure no other meetings during the day you visit us. Thanks!

 

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
screwshaft

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
screwshaft

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
screwshaft

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

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