China Ndw-200 Planetary Cycloid Reducer Transmission Torsion Testing Machine for Laboratory

Product Description

 NDW-200 Metal Bone Screws Torsion Testing machine Torsion Tester with Planetary Cycloid Reducer Transmission


NDW-200 computer controlled torsion testing machine is composed of loading system, transmission system, data acquisition and processing system and computer display system. It is applicable to metal materials, non-materials and various components such as transmission shafts, wind blades, double metal material bimetal parts, joints, etc. static torsional mechanics performance test. This machine adopts vertical structure, computer screen real-time display torque and torque angle, digital data acquisition control system, adopts planetary cycloid reducer transmission, with features of uniform loading, stability, no impact phenomenon, accurate data acquisition control.  It is specially researched and designed for medical bone screw torsion test.

ISO 6475:1989Implants for surgery-Metal bone screws with asymmetrical thread and spherical under-surface Mechanical requirements and test methods ASTM F543-02 Standard Specification Test Methods for Metallic Medical Bone Screws

3. Technical Parameters

Model NDW-200
Max torque 200 Nm
Test Range 10 ~ 200 Nm
Test class Class 1
Control method Computer control
Torque value relative error ±1%
Torque repeatability error ±1%
Torque effective test range(F·S) 2%~100%F·S (4~200Nm)
Torque resolution 0.02 Nm
Effective distance between 2 chucks  (moving space between 2 chucks) 0-500mm
Concentricity accuracy between 2 clamps 0-500mm
Torsion angle value relative error ≤ Φ 0.2mm, in the range of 1000mm
Torsion angle display range ≤±1%
Torsion angle display range Unlimited (or 99999°)
Torque angle resolution(°) 0.1°
Torque angle resolution(°) 0.05-800
Torsion speed 1-720°/min Stepless speed
Torsion speed relative error ≤±1% of setting vlaue
Power Supply AC 220V±10%,50Hz
Test rotating direction Two ways: forward & reversal
Main Host weight 180kg


4. Details Images


1. Are you a manufacturer?
Yes, we are 1 of the largest manufacturer of every kinds of testing machines in China. In general, every machine shipped from our factory provides 12 months of free maintenance, taking into account shipping reasons. We can extend the maintenance period for our customers for 2 months.
2. Do you have after-sales service? How can I ask? What about warranty?
Before the delivery of the equipment, we will carry out the factory inspection and the equipment will be shipped after the inspection. If your machine does not work properly, you can contact us and we will try our best to communicate with you via email or video chat. We promise we will reply to you within 24 hours and with 3 Within a working day to provide solutions. After confirming that it is really necessary, we can send you new parts or on-site maintenance.
The service does not include mechanical failure due to the following reasons:
(1) Wrong operation;
(2) Privately modified;
(3) Failure caused by non-equipment itself
(4) Use environment that is not suitable for equipment operation. Such as high temperature, humidity, corrosive gas or vibration.
(5) Problems caused by movement or transportation.
(6) Consumable components.
(7) Natural disasters
3. What is the delivery deadline?
Most of the time, we have inventory at the factory. If not, the delivery time is usually 15 to 20 days after receiving the payment. If you need it urgently, we can consider making special arrangements for you.
4. What kind of packaging and transportation do you use?
Under normal circumstances, we will use ordinary orders such as DHL, Fedex, UPS TNT transport. Large orders will use aviation or shipping.
5. Can the device be customized? Can I customize my own design on the device?
We can not only provide standard machines, but we can also provide customized machines according to your needs.
At the same time, we can also place your trademark on the machine.
6. What kind of packaging do you use?
Plastic sealed and sturdy wooden box.
7. What payment methods do you support?
Paypal, T/T, Western Union,L/C

Planetary Gearbox

This article will explore the design and applications of a planetary gearbox. The reduction ratio of a planetary gearbox is dependent on the number of teeth in the gears. The ratios of planetary gearboxes are usually lower than those of conventional mechanical transmissions, which are mainly used to drive engines and generators. They are often the best choice for heavy-duty applications. The following are some of the advantages of planetary gearboxes.

planetary gearboxes

Planetary gearboxes work on a similar principle to solar systems. They rotate around a center gear called the sun gear, and 2 or more outer gears, called planet gears, are connected by a carrier. These gears then drive an output shaft. The arrangement of planet gears is similar to that of the Milky Way’s ring of planets. This arrangement produces the best torque density and stiffness for a gearbox.
As a compact alternative to normal pinion-and-gear reducers, planetary gearing offers many advantages. These characteristics make planetary gearing ideal for a variety of applications, including compactness and low weight. The efficiency of planetary gearing is enhanced by the fact that 90 percent of the input energy is transferred to the output. The gearboxes also have low noise and high torque density. Additionally, their design offers better load distribution, which contributes to a longer service life.
Planetary gears require lubrication. Because they have a smaller footprint than conventional gears, they dissipate heat well. In fact, lubrication can even lower vibration and noise. It’s also important to keep the gears properly lubricated to prevent the wear and tear that comes with use. The lubrication in planetary gears also helps keep them operating properly and reduces wear and tear on the gears.
A planetary gearbox uses multiple planetary parts to achieve the reduction goal. Each gear has an output shaft and a sun gear located in the center. The ring gear is fixed to the machine, while the sun gear is attached to a clamping system. The outer gears are connected to the carrier, and each planetary gear is held together by rings. This arrangement allows the planetary gear to be symmetrical with respect to the input shaft.
The gear ratio of a planetary gearbox is defined by the sun gear’s number of teeth. As the sun gear gets smaller, the ratio of the gear will increase. The ratio range of planetary gears ranges from 3:1 to 10 to one. Eventually, however, the sun gear becomes too small, and the torque will fall significantly. The higher the ratio, the less torque the gears can transmit. So, planetary gears are often referred to as “planetary” gears.

Their design

The basic design of a Planetary Gearbox is quite simple. It consists of 3 interconnecting links, each of which has its own torque. The ring gear is fixed to the frame 0 at O, and the other 2 are fixed to each other at A and B. The ring gear, meanwhile, is attached to the planet arm 3 at O. All 3 parts are connected by joints. A free-body diagram is shown in Figure 9.
During the development process, the design team will divide the power to each individual planet into its respective power paths. This distribution will be based on the meshing condition of all gears in the system. Then, the design team will proceed to determine the loads on individual gear meshes. Using this method, it is possible to determine the loads on individual gear meshes and the shape of ring gear housing.
Planetary Gearboxes are made of 3 gear types. The sun gear is the center, which is connected to the other 2 gears by an internal tooth ring gear. The planet pinions are arranged in a carrier assembly that sets their spacing. The carrier also incorporates an output shaft. The 3 components in a Planetary Gearbox mesh with each other, and they rotate together as one. Depending on the application, they may rotate at different speeds or at different times.
The planetary gearbox’s design is unique. In a planetary gearbox, the input gear rotates around the central gear, while the outer gears are arranged around the sun gear. In addition, the ring gear holds the structure together. A carrier connects the outer gears to the output shaft. Ultimately, this gear system transmits high torque. This type of gearbox is ideal for high-speed operations.
The basic design of a Planetary Gearbox consists of multiple contacts that must mesh with each other. A single planet has an integer number of teeth, while the ring has a non-integer number. The teeth of the planets must mesh with each other, as well as the sun. The tooth counts, as well as the planet spacing, play a role in the design. A planetary gearbox must have an integer number of teeth to function properly.


In addition to the above-mentioned applications, planetary gearing is also used in machine tools, plastic machinery, derrick and dock cranes, and material handling equipments. Further, its application is found in dredging equipment, road-making machinery, sugar crystallizers, and mill drives. While its versatility and efficiency makes it a desirable choice for many industries, its complicated structure and construction make it a complex component.
Among the many benefits of using a planetary gearbox, the ability to transmit greater torque into a controlled space makes it a popular choice for many industries. Moreover, adding additional planet gears increases the torque density. This makes planetary gears suitable for applications requiring high torque. They are also used in electric screwdrivers and turbine engines. However, they are not used in everything. Some of the more common applications are discussed below:
One of the most important features of planetary gearboxes is their compact footprint. They are able to transmit torque while at the same time reducing noise and vibration. In addition to this, they are able to achieve a high speed without sacrificing high-quality performance. The compact footprint of these gears also allows them to be used in high-speed applications. In some cases, a planetary gearbox has sliding sections. Some of these sections are lubricated with oil, while others may require a synthetic gel. Despite these unique features, planetary gears have become common in many industries.
Planetary gears are composed of 3 components. The sun gear is the input gear, whereas the planet gears are the output gears. They are connected by a carrier. The carrier connects the input shaft with the output shaft. A planetary gearbox can be designed for various requirements, and the type you use will depend on the needs of your application. Its design and performance must meet your application’s needs.
The ratios of planetary gears vary depending on the number of planets. The smaller the sun gear, the greater the ratio. When planetary stages are used alone, the ratio range is 3:1 to 10:1. Higher ratios can be obtained by connecting several planetary stages together in the same ring gear. This method is known as a multi-stage gearbox. However, it can only be used in large gearboxes.


The main component of a planetary gearbox is the planetary gear. It requires regular maintenance and cleaning to remain in top shape. Demand for a longer life span protects all other components of the gearbox. This article will discuss the maintenance and cleaning procedures for planetary gears. After reading this article, you should know how to maintain your planetary gearbox properly. Hopefully, you can enjoy a longer life with your gearbox.
Firstly, it is important to know how to properly lubricate a planetary gearbox. The lubricant is essential as gears that operate at high speeds are subject to high levels of heat and friction. The housing of the planetary gearbox should be constructed to allow the heat to dissipate. The recommended oil is synthetic, and it should be filled between 30 and 50 percent. The lubricant should be changed at least every 6 months or as needed.
While it may seem unnecessary to replace a planetary gearbox, regular servicing will help it last a long time. A regular inspection will identify a problem and the appropriate repairs are needed. Once the planetary gearbox is full, it will plug with gear oil. To avoid this problem, consider getting the unit repaired instead of replacing the gearbox. This can save you a lot of money over a new planetary gearbox.
Proper lubrication is essential for a long life of your planetary gearbox. Oil change frequency should be based on oil temperature and operating speed. Oil at higher temperatures should be changed more frequently because it loses its molecular structure and cannot form a protective film. After this, oil filter maintenance should be performed every few months. Lastly, the gearbox oil needs to be checked regularly and replaced when necessary.

China Ndw-200 Planetary Cycloid Reducer Transmission Torsion Testing Machine for Laboratory  China Ndw-200 Planetary Cycloid Reducer Transmission Torsion Testing Machine for Laboratory

Planetary Gearbox

As one of the leading planetary gearbox manufacturers, suppliers, and exporters of mechanical products, We offer planetary gearbox and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of the planetary gearbox.

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