Product Description

Spot supply of 57 stepper motor micro mixing reducer BRUShless DC motor mask machine screw machine automation

1.Features

1) Step Angle  Accuracy: ±5%
2) Resistance Accuracy: ±10%
3) Inductance Accuracy: ±20%
4) Temperature Rise: 80°C Max
5) Ambient Temperature: -20°C~+50°C
6) Insulation Resistance: 100MΩ Min., 500VDC
7) Dielectric Strength:  500VAC for 1 minute
8) Shaft Radial Play:  0.02Max (450g-load)
9) Shaft Axial Play: 0.08Max (450g-load)

2.Related Specifications

1) 42mm series

Model		DMW421	DMW422	DMW423
Voltage	V	24
No load speed	rpm	5000	5000	5000
Rated torque	Nm	0.063	0.094	0.125
Rated Speed	rpm	4000	4000	4000
Rated Current	A	1.7	2.5	3.5
Torque(max)	Nm	0.19	0.27	0.38
Back-EMF constant	V/Krpm	3.13	3.13	3.15
Torque Constant	Nm/A	0.039	0.04	0.04
Resistance	ohm	1.5	0.53	0.74
Weight	Kg	0.3	0.4	0.5
Length	mm	41	51	6

2) 70mmSeries

Model	Rated Voltage	No load speed	Rated torque	Rated Speed	Rated Current	Rated power	L
	VDC	RPM	Nm	rpm	A	W	mm
DMW701	48	3500	0.5	3000	4.3	157	86
DMW702	48	3500	1	3000	8.7	314	116
DMW703	48	3500	1.5	3000	12.9	471	136

3) 80mmSeries

Model		DMW801	DMW802	DMW803
Voltage	V	24
No load speed	rpm	4200	4200	4200
Rated torque	Nm	0.25	0.5	0.75
Rated Speed	rpm	3000	3000	3000
Rated Current	A	5.2	10.5	15
Rated power	W	79	157	236
Back-EMF constant	V/Krpm	9	9.2	9.5
Torque Constant	Nm/A	0.06	0.052	0.05
Resistance	ohm	0.5	0.43	0.35
Weight	Kg	1.6	2.2	3
Length	mm	75	95	115

4) 86mmSeries

Model		DMW861	DMW862	DMW863
Voltage	V	48
No load speed	rpm	3500	3500	3400
Rated torque	Nm	1.0	1.8	2.5
Rated Speed	rpm	3000	3000	3000
Rated Current	A	8.6	14.8	20
Torque(max)	Nm	3.0	5.4	7.5
Back-EMF constant	V/Krpm	9.8	9.8	10
Torque Constant	Nm/A	0.13	0.13	0.14
Resistance	ohm	0.32	0.15	0.1
Weight	Kg	2.2	3.2	4.2
Length	mm	80	105	130

5) 60mmSeries

Model		DMW601	DMW602	DMW603
Voltage	V	36
No load speed	rpm	4100	4100	4100
Rated torque	Nm	0.25	0.5	0.75
Rated Speed	rpm	3000	3000	3000
Rated Current	A	3	6	9
Torque(max)	Nm	0.75	1.5	2
Back-EMF constant	V/Krpm	6.2	6.5	6.5
Torque Constant	Nm/A	0.043	0.045	0.041
Resistance	ohm	0.59	0.26	0.2
Weight	Kg	0.9	1.2	1.6
Length	mm	78	99	120

6) 57mm Series

Model		DMW571	DMW572	DMW573	DMW574
Voltage	V	36
No load speed	rpm	5200	5200	5300	5400
Rated torque	Nm	0.11	0.22	0.32	0.42
Rated Speed	rpm	4000	4000	4000	4000
Rated Current	A	1.8	3.2	4.7	6.5
Torque(max)	Nm	0.3	0.5	0.8	1.2
Back-EMF constant	V/Krpm	4.5	4.8	4.83	4.9
Torque Constant	Nm/A	0.072	0.078	0.08	0.09
Resistance	ohm	1.7	0.75	0.5	0.39
Weight	Kg	0.45	0.8	1.1	1.4
Length	mm	55	75	95	115

7) 57 High Torque

Model		DMW571	DMW572	DMW573	DMW574
Voltage	V	36
No load speed	rpm	5200	5200	5200	5200
Rated torque	Nm	0.14	0.28	0.43	0.49
Rated Speed	rpm	4000	4000	4000	4000
Rated Current	A	2.2	4.5	6.8	7.9
Torque(max)	Nm	0.4	0.6	0.9	1.5
Back-EMF constant	V/Krpm	4.5	4.8	4.83	4.9
Torque Constant	Nm/A	0.072	0.078	0.08	0.09
Resistance	ohm	2	0.9	0.7	0.5
Weight	Kg	0.5	0.9	1.3	1.8
Length	mm	55	75	95	115

3.Outlines/Drawings

4.About US

5.Main Products

HangZhou Shnmotor is a developing manufacturing and trading company which aims at the electrical products of refrigeration market.
We have a highly qualified team, which has over 8 years experience on Machinery designing, manufacturing, managing and customer service concept heart & soul.
ISO 9000 standard and 6S management guarantee the most effective quality control on every part and every process of the products. 

Our Main Products as below:
1)Brushless DC Motor
2)Setpping Motor 
3)AC Motor
4)Motor Group
(Motor+Reducer+Driver+Brake)

6.Application

Package and Shipping

1.FedEX / DHL / UPS / TNT for samples,Door to door service;
2.By sea for batch goods;
3.Customs specifying freight forwarders or negotiable shipping methods;
4.Delivery Time:20-25 Days for samples;30-35 Days for batch goods;
5.Payment Terms:T/T,L/C at sight,D/P etc.

FAQ
Q1. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are urgent to get the price, please send the message on  and  or call us directly.

Q2. How can I get a sample to check your quality?
After price confirmed, you can requiry for samples to check quality.
If you need the samples, we will charge for the sample cost. But the sample cost can be refundable when your quantity of first order is above the MOQ

Q3. Can you do OEM for us?
Yes, the product packing can be designed as you want.

Q4. How about MOQ?
1 pcs for carton box.

Q5. What is your main market?
Eastern Europe, Southeast Asia, South America.
 
Please feel  free to contact us if you have any question.

 

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.

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.

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.

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.