Hansheng Automation (Dongguan) Co., Ltd. is one of the most experienced manufacturers and suppliers of hollow rotary table gearboxes in China. If you're going to wholesale bulk cost-effective hollow rotary table gearboxes made in China, welcome to get pricelist and quotation from our factory. Also, customized service and OEM&ODM service are available.
Hansheng Automation is a manufacturer focusing on precision parts and reducers. In the field of precision reducers, we mainly provide four types of reducer manufacturing: Cam Indexer, Hollow Rotary Table, Planetary Gearbox, and Harmonic Drive. We also provide the services you need for your equipment, from Japan's Kashifuji KPS30 gear processing equipment to Seibu WEDM M50B wire cutting machines, from ±0.002mm ultra-mirror CNC machining to 3800×1500×1200mm ultra-large precision castings. Each service capability is designed to push your equipment performance to the limit.Below I will introduce the Hollow Rotary Table Gearboxes in detail. If you need more information about this product, please contact us.
What is hollow rotary table Gearboxes?
The hollow rotary table gearbox is a very precise transmission mechanism made just for situations where you need to "transmit rotation + central wiring." It changes motor power into controllable rotational torque by meshing gears, and it keeps a central hollow channel (10–100 mm in diameter) open so that gasses, liquids, and cables can pass through without any problems.
The main distinction between this gearbox and others is that it combines high-precision transmission with space-saving features. Its hollow shape solves the problem of pipeline entanglement, so it doesn't need any extra wiring space. It also has high torque (up to 890N·m) and low backlash (≤3 arc minutes), just as gear transmission. It is perfect for the "rotation + integration" needs of automated production lines.
product Features
We can provide selection services and customized solution services. If it was not confirmed the model you need, please provide the following infomation to us, our engineer shall make calculation and verify the model.
1) Weight of loading
2) Diameter of turntable
3) Max speed. Or how many seconds to rotate how many degrees?
4) Any drawing or photo of your application?
5) Horizontal, vertical or suspension installation?
Installation Method for Hollow Rotating table
Make sure the workstation is clutter-free and spotless.
Get all you need: a level, screwdriver, wrench set, etc.
Check Elements:
Unbox the hollow spinning platform and look for damage.
Verify that per the specification sheet all parts and accessories are included as specified.
Setting up the Platform:
Set the platform on a level ground or mount it to a suitable frame.
Aligning the holes on the platform with those on the mounting plate helps ensure this.
Using suitable bolts, secure the platform such that they are tightened to manufacturer standards.
Pneumatic and electric connections:
Route any required pneumatic lines or wire across the hollow centre of the platform.
Make tight connections to guarantee no leaks or pinched wires.
Levelling:
To make sure the platform is exactly horizontal, run a level across.
Tightening or loosening the mounting bolts will help you to adjust as required.
Examining:
Manually turn the platform to guarantee flawless movement before full running.
Run a low speed test to look for any anomalies.
Precautions for product use
load possibility:
Always follow the load capacity suggested to prevent damage or malfunction.
Constant Maintenance:
Check the platform regularly for wear and tear; if indicated, oil moving components.
Avoid overload using:
Steer clear of filling the platform with overly heavy or uneven weights if you want guaranteed safe operation.
Safety in Electricity:
Verify that every electrical connection is suitably insulated against moisture or damage.
Under training:
Make sure every operator gets direction on proper operation and safety procedures.
Emergency Management:
Make sure every staff member is aware of easily available emergency tools and procedures.
Typical Application Scenarios
3C Automated Assembly: The HRT-200 gearbox in a mobile phone motherboard rotary welding station lets it turn 360° continuously. A hollow opening lets welding wires pass through, which makes sure that the positioning is accurate to within 1 arc minute and the solder point is off by no more than 0.01mm. This makes production more efficient.
Medical Equipment: An HRM-260 gearbox is used to make the CT examination table turn. It can hold 500 kg because of its high-rigidity construction, and it has a low backlash that means the rotation angle error is ≤0.1°, which is what medical imaging needs.
Optical examination: A multi-faceted lens examination table has a HRT-60 gearbox and a 200W servo motor, which lets you make delicate adjustments of 0.5°. A hollow channel lets fiber optic signal wires go through.
Processing parts for cars: The HRTZ-280 gearbox on the brake disc rotary drilling machine gives it a high torque of 680N·m, an axial load of 13000N to handle the drilling response force, an indexing accuracy of ≤2 arc minutes, and a hole tolerance of ≤0.02mm.
FAQ
Q: What is the difference between a hollow rotary table gearbox and a standard servo gearbox?
A: The main distinction is how well the structures fit together: Standard servo gearboxes just send signals, therefore they need more room for wiring. Hollow rotary platform gearboxes, on the other hand, connect the gearbox to the rotary table. The middle hollow hole lets cables go straight through, which saves room during installation and keeps transmission quality good. This makes them perfect for situations when "rotation + integration" is needed in a small space.
Q: Will the backlash of the gearbox increase over time? How is it maintained?
A: Under normal use, backlash changes minimally (≤0.5 arc minutes within 10,000 hours) due to the use of hardened gears (for high wear resistance) and a preload design. Maintenance precautions: Check the grease status every six months (replenish with the same type of lithium-based grease if insufficient). Avoid overload (actual torque ≤ 80% of the rated value) to effectively slow down backlash growth.
Q: How can I make sure that the gearbox and motor are concentric when I install them?
A: To calibrate, you need to do the following:
Align the motor flange with the gearbox input shaft flange and put in two bolts that are diagonally opposite each other (but don't tighten them).
Check the radial runout between the motor shaft and the gearbox input shaft with a dial indicator. It should be less than 0.02 mm.
Tighten the bolts slowly, inspecting the runout every 1/4 turn to be sure they are centered.
Too much concentricity deviation will make the noise louder and shorten the life of the gearbox.
Q: How long will the gearbox last? What is the guarantee?
A: The service life is at least 5 years (around 15,000 hours) when used normally (8 hours a day, load ≤80% of the rated value). We give you a 20-month warranty.
Q: Will the accuracy of positioning change when used with a stepper motor?
A: When utilized with a stepper motor, the motor itself is mostly responsible for positioning precision (stepper motor accuracy is usually ±0.5% of the step angle). The gearbox's backlash (≤3 arc minutes) doesn't affect precision very much. If you need more accuracy, it's best to utilize a servo motor (closed-loop control can fix mistakes). This is especially useful when the load is heavy or the speed is low.
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