Product Description
The DK series hollow rotary platform has excellent performance. The rotating disk can directly lock the workpiece, greatly improving the convenience of workpiece loading. Its dynamic movement is smooth and stable, and the positioning is fast and accurate. The positioning accuracy is less than one minute, and the repeatability accuracy can be selected as ±5 seconds. The hollow design is extremely convenient for both wiring and piping. It can be adapted to various brands of servo motors or stepper motors to meet diverse industrial needs and is widely used in automation equipment, electronic manufacturing and other fields.

Functional Features

Workpiece can be directly locked
The rotating disk can directly lock the workpiece, improving the convenience of workpiece loading.
Smooth rotation
The disk rotates smoothly and smoothly, and positioning is fast.
Convenient wiring
This rotating platform is a hollow design, which is convenient for wiring and piping.
Try various motors
The hollow rotating platform can be driven by servo motors or stepper motors of various brands.
High precision
Positioning accuracy is less than one minute.
Repeat accuracy can be selected as ±5 seconds.
Dimensional drawing
Product parameters
Parameter name | DK-60 | DK-100 | DK-130 | DK-200 | DK-275 | |||||
Modle | 42Type stepper motor | 100W AcType stepper motor | 60Type stepper motor | 200-400W AcType stepper motor | 60Type stepper motor | 200 - 400W AcType stepper motor | 85Type stepper motor | 750W AcType stepper motor | 85Type stepper motor | 750W AcType stepper motor |
Rotating platform bearing | Deep-fill ball bearing + thrust ball bearing | Tapered ball bearings | ||||||||
Allowable torque | 3.5N.m | 20N.m | 20N.m | 65N.m | 65N.m | |||||
Moment of inertia | 2330x10⁻⁷ kg.m² | 3898x10⁻⁶ kg.m² | 9216x10⁻⁶ kg.m² | 85792x10⁻⁶ kg.m² | 111279x10⁻⁶ kg.m² | |||||
Allowable speed | 300rpm | 200rpm | 200rpm | 200rpm | 200rpm | 200rpm | ||||
Resolution P/R | Half-step setting ~ micro-step setting | Servo motor specifications | Half-step setting ~ micro-step setting | Servo motor specifications | Half-step setting ~ micro-step setting | Servo motor specifications | Half-step setting ~ micro-step setting | Servo motor specifications | Half-step setting ~ micro-step setting | Servo motor specifications |
Reduction ratio | Direct drive reducer 1:5,1:20 | Right angle reducer1:10 | Direct drive reducer 1:8 | Right angle reducer1:16 | Direct drive reducer 1:10 | Right angle reducer1:20 | Direct drive reducer 1:10 | Right angle reducer1:20,1:30 | Direct drive reducer 1:10 | Right angle reducer1:20,1:30 |
Positioning accuracy | ≤1mins | |||||||||
Repeated positioning accuracy | ±10sec | ±5sec | ±5sec | ±5sec | ±5sec | |||||
Allowable thrust load | 20kgf | 200kgf | 250kgf | 500kgf | 800kgf | |||||
Allowable inertia load | 5N.m | 10N.m | 60N.m | 60N.m | 200N.m | 200N.m | ||||
Rotating platform parallelism | ±5μm | ±2μm | ±2μm | ±2μm | ±2μm | |||||
Rotating platform concentricity | ±0.01mm | ±0.01mm | ±0.01mm | ±0.01mm | ±0.01mm | |||||
Protection level | 40IP | |||||||||
Weight | 2.2kg | 3kg | 5.5kg | 14kg | 19kg |
Performance Introduction
PS circumferential unit: 1rpm=360°/1°=60'1'=60"
Circumferential error converted to linear error: disk diameter x 3.14159÷(360°x60'x60") x accuracy error
Inspection equipment: Systematic management, regular inspection to ensure measurement accuracy and traceability







Motor Installation Instructions
Attachment 1:
Attachment 2:
Wrench bolt size | Motor installation Ta-8.8T | Locking ring installation Tb-12.9T | ||
(N.m) | (kgf.cm) | (N.m) | (kgf.cm) | |
M3 | 1.28 | 13 | 2.15 | 22 |
M4 | 2.9 | 30 | 4.95 | 50 |
M5 | 5.75 | 59 | 9.7 | 99 |
M6 | 9.9 | 101 | 16.5 | 168 |
M8 | 24 | 245 | 40 | 408 |
M10 | 48 | 489 | 81 | 826 |
M12 | 83 | 846 | 140 | 1428 |
M14 | 132 | 1346 | 220 | 2243 |
M16 | 200 | 2039 | 340 | 3467 |
Platform Installation Instructions
Installation Instructions for Hollow Rotating Platform
Reserve the motor outlet on the mounting plate of the hollow rotating platform to prevent the motor from interfering with the mounting plate.
Install 2 locating pin holes to position the hollow rotating platform, and then tighten the fastening bolts diagonally.
Install the load on the hollow rotating platform
The locating pin holes of the 2 loads on the hollow rotating platform are used to confirm the position of the load.
Install the load on the mounting surface of the hollow rotating platform and use the 6 threaded holes on the top to complete the tightening of the load.
Dowel pin hole size (Note 1):
Platform Specifications | Pin Hole Diameter mm | Pin Hole Depth mm | Number of Pin Holes |
DH60 | Ø5+0.0120(H7) | 10 (through) | 2 |
DH85 | Ø5+0.0120(H7) | 10.5(through) | 2 |
DH130 | Ø5+0.0120(H7) | 11.5 (through) | 2 |
DH200 | Ø5+0.0120(H7) | 15.2 (through) | 2 |
Dowel pin hole size (Note 2):
Platform Specifications | Pin Hole Diameter mm | Pin Hole Depth mm | Number of Pin Holes |
DH60 | Ø5+0.0120(H7) | 6 | 2 |
DH85 | Ø5+0.0120(H7) | 6 | 2 |
DH130 | Ø5+0.0120(H7) | 6 | 2 |
DH200 | Ø5+0.0120(H7) | 15 | 2 |
DH275 | Ø5+0.0120(H7) | 8 | 2 |
Installation Precautions
Before installation, read the following installation precautions and install according to the following conditions:
1. Indoors (areas not directly exposed to sunlight)
2. Areas without heat radiation
3. Working environment (temperature: 0~+50°℃/humidity: less than 85%)
4. Temperature below the origin sensor: 0+40°C
5. No flammable and explosive acidic gas
6. Places that can block dust, oil and splashing water
7. Places that are not subject to direct vibration and excessive impact
Selection calculation
1. Calculate the moment of inertia of the transport (load moment of inertia)
The moment of inertia of the transported object should be less than 30 times the moment of inertia of the transmission device.
2. Calculate the acceleration torque using the following formula
3. Calculate the required torque
The required torque is calculated by multiplying the sum of the load torque caused by the friction torque and the acceleration torque caused by the inertia by the safety factor.
Required torque T=(load torque (N.m)+ acceleration torque (N.m))×S
The safety factor S is greater than 1.5.
4. The torque T required for the selected motor must be within the speed-torque specification range.
5. Calculation of axial load and static moment
When applying a load to the hollow rotating platform as shown in the figure below, make sure that the axial load and static moment calculated using the following calculation formula are within the specified range.
Application
Robot: used in robot joints to provide flexible and precise rotation, such as welding and spraying robots. With the hollow structure, it is convenient for pipelines to pass through, avoid line interference, and improve the smoothness and accuracy of movements.
3C Automation: In the manufacturing of 3C products, it realizes the precise rotation of components such as circuit boards, which is convenient for welding, patching and other operations. It is also used in the detection link to adjust the angle of components for all-round detection and improve production quality.
CNC equipment: acts as the fourth axis of CNC machine tools to achieve rapid positioning of tool libraries, assist in rapid tool switching during complex mold processing, improve processing accuracy and surface quality, and shorten auxiliary time.
Medical equipment: drives components to rotate in imaging equipment such as CT to obtain multi-angle images; used in surgical robots to achieve fine surgical operations, and ensure the accuracy of medical testing and surgery with high precision.
Testing equipment: drives optical lenses, electronic components and other objects to be tested to rotate at multiple angles, cooperates with testing instruments to achieve all-round high-precision measurement, and ensures accurate and reliable test results.
Printing and packaging: Ensure accurate rotation of the plate cylinder in the printing press to achieve accurate overprinting of the pattern; control product rotation in the labeling machine to ensure accurate attachment of labels and improve packaging and printing quality.

Quality Assurance
Product design and development: During the design phase of the central control rotary platform, a team of professional engineers gathered together to use advanced computer-aided design (CAD) and simulation analysis software to perform fine simulation and optimization of core parts such as product structure, power transmission, and control logic to ensure the reliability and stability of product performance from the source. All design plans must undergo multiple rounds of internal review and test verification before they can enter the production stage.
Raw material procurement: Strictly screen raw material suppliers to establish long-term, stable and high-standard cooperative relationships. For each batch of raw materials, strict quality inspections are carried out, covering the composition analysis of metal materials, mechanical performance testing, electrical parameter testing of electronic components, reliability testing, etc. Only raw materials that meet or exceed industry standards will be allowed to be put into production to ensure the basic quality of the product.
Production process control: The production workshop operates in accordance with a strict quality management system, introduces automated production equipment and high-precision testing instruments, and realizes the standardization and refinement of the production process. At each key node of production, quality inspection points are set up to conduct real-time sampling and full inspections of semi-finished products, including component processing accuracy inspection, assembly quality inspection, and initial electrical performance testing. For quality problems that occur during the production process, the traceability and rectification mechanism is immediately activated to ensure that the problematic products do not flow into the next link.
Finished product inspection: Each central control rotary platform must undergo a comprehensive and rigorous finished product inspection process before leaving the factory. Inspection items include but are not limited to no-load operation test, full-load operation test, positioning accuracy test, repeated positioning accuracy test, noise and vibration test, electrical safety performance test, etc. Only equipment whose indicators fully meet the product quality standards will be labeled as qualified and allowed to leave the factory.
After-sale guarantee
If a product fails, our after-sales team will respond immediately and quickly arrange for professional technicians to communicate with you to understand the details of the failure. We will provide you with remote technical guidance and assist you in solving the problem according to the specific situation. At the same time, we also provide you with regular return visits to understand the use of the product and collect your opinions and suggestions in order to continuously optimize products and services. When the product is upgraded, we will also notify you in a timely manner and provide you with corresponding technical support and solutions to keep your equipment in good performance.