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Compact In-Tube Tubular Motor for Space-Saving Small High-Speed Doors

When side-room clearance is virtually non-existent, traditional external high-speed motors simply will not fit. Our Compact In-Tube Tubular Motor solves this by hiding entirely inside the winding shaft itself. Designed for smaller, interior high-speed PVC doors, this invisible powerplant provides exceptional opening speeds while requiring absolutely zero exterior side clearance, resulting in an incredibly clean, aesthetic, and space-saving installation.

Key Advantages & Benefits:

  • Zero Side-Room Requirement: Hides completely inside the roller tube, perfect for narrow corridors or doorways wedged tightly between structural walls.
  • Aesthetically Clean: The invisible installation removes bulky external motors and wiring from sight, ideal for customer-facing retail environments.
  • Dust and Dirt Protected: By living inside the sealed winding tube, the motor is naturally protected from ambient warehouse dust and accidental forklift impacts.
  • Surprisingly Fast: Despite its small footprint, the specialized planetary gearing allows it to rapidly roll up lightweight PVC curtains up to 1.2m/s.

Versatile Applications:

  • Supermarket stockroom-to-retail floor transition doors.
  • Conveyor belt partition doors in automated sorting facilities.
  • Narrow hospital corridors and cleanroom vestibules.

Frequently Asked Questions (FAQ):

  • Q: Because it is small, does it overheat easily? A: It is designed for small, lightweight PVC doors and moderate cycles. For extreme 24/7 continuous cycles on large doors, an external servo motor is still recommended.
  • Q: How do you adjust the limits if the motor is hidden? A: The motor utilizes an electronic limit system that is programmed remotely via the wall-mounted control panel; you do not need to access the motor physically to set the stops.
  • Q: What size tube does this motor fit inside? A: We offer variations to fit snugly inside standard 4-inch (100mm) or 5-inch (130mm) octagonal or round aluminum roller tubes.

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FAQ

What aluminum alloys do you use to make motorcycle engine cases?

We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.

How to ensure the tightness of the engine cover and prevent oil leaks?

Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.

How long is the delivery lead time for OEM motorcycle engine covers

For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines

What surface polishing options do you provide for motorcycle engine case covers?

Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.

Application Background and Use Scenario

Heat Pipe R&D and Sample Preparation


Heat pipe development requires stable and repeatable sample-level processing before entering mass production. During R&D stages, engineers need precise control over heating, degassing, and welding preparation to verify product structure and process feasibility. This equipment is designed to support such sample preparation tasks under controlled conditions.


Process Validation Before Mass Manufacturing


Before scaling up to full production lines, manufacturers often need to confirm welding parameters, heating lengths, and degassing performance. This machine provides a practical platform for process validation, helping reduce risks during later mass production deployment.


Integrated Heating and Degassing Process


The heating process is controlled by both temperature and time, allowing operators to set parameters according to different pipe diameters and material requirements. This helps maintain consistent thermal conditions during sample processing.