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Direct-drive motors · Shenzhen, China
Home Products Frameless Rotary DD Motors

Frameless Rotary DD Motors

Rotor and stator only — drop the motor directly into your own mechanics.

0.16–800N·m Rated torque range
10,000RPM Maximum speed
60points Inspection checks per unit
17 Patents & software copyrights
Frameless Rotary DD Motors — engineering schematic

Engineering schematic — not a product photograph. Dimensional drawings are issued with the quotation.

What it is

A frameless direct-drive motor is supplied as a rotor and stator pair with no housing, bearings or shaft. You integrate the rotor onto your own spindle or rotary axis and mount the stator into your structure. This removes the gearbox, belt and coupling from the drive train, which is what gives direct-drive axes their stiffness and zero-backlash positioning.

Design points

  • No housing, bearing or coupling — you own the mechanical interface
  • Eliminates gearbox backlash and belt compliance in the position loop
  • High torque density for the installed volume
  • Best fit when the machine structure already carries the bearing

Typical fit

Rotary indexing tables, wafer and panel inspection stages, optical gantries

Range parameters

Shared across the range. The exact figures for a frameless design are fixed when we size it to your load case.

Range parameters. Individual models are sized to the application — request a datasheet for the exact figures.
ParameterValue
Rated (stall) torque0.16 – 800 N·m
Maximum speedup to 10,000 RPM
Bus voltage75 VDC · 120 VAC · 240 VAC · 400 VAC · 480 VAC
Mounting standardComplies with common European, North American and Japanese machine mounting standards
FeedbackMultiple encoder and resolver options
Torque smoothnessLow cogging-torque design with low harmonic-distortion magnets
Mechanical optionsMultiple connector styles · shaft seal · holding brake
Sizing note. Torque, speed and accuracy cannot be chosen independently. Send the load inertia and the duty cycle and we will run the sizing rather than guess at a part number.

At a glance

Family
Frameless
Torque
0.16 – 800 N·m
Speed
up to 10,000 RPM
Feedback
Encoder / resolver
Certification
CE · RoHS
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Enquiry

Ask about frameless rotary dd motors

This form goes straight to the application engineers, not to a sales inbox. Include the machine it goes into and the accuracy you need to hold.

  • Reply within one business day
  • Datasheet and dimensional drawing on request
  • Samples measured before shipment

Request a quote

Tell us the duty cycle, the load inertia and the space you have. We reply within one business day.

Prefer to send a drawing?

Email the drawing and the duty cycle, and we will come back with a sizing proposal.

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