CPM-100-25 Technical Datasheet v1.0¶

Status: Public engineering evaluation reference
Release date: 2026-10-06

CPM-100-25 is a 100 mm integrated cycloidal robot joint module with a 25:1 reduction ratio, 25 Nm rated output torque and 60 rpm rated output speed.

This page consolidates values already published on the current CPM-100-25 product page. Driver, encoder, communication and closed-loop functions depend on the ordered configuration and must be confirmed in the quotation.

Key Performance¶

Parameter	Published value
Transmission structure	Cycloidal pinwheel
Outer diameter	100 mm
Product thickness	29.5 mm
Reduction ratio	25:1
Backlash	5-10 arcmin
Operating voltage	24-48 VDC
Rated motor power	213 W
Rated output speed	60 rpm
No-load output speed	90 rpm
Rated output torque	25 Nm
Peak output torque	75 Nm
Weight	630 g
Allowable radial force	500 N
Allowable axial force	300 N

Warning

Peak torque is not a continuous rating. Peak-torque duration depends on operating voltage, current limit, duty cycle and thermal conditions.

Motor and Electrical Parameters¶

Parameter	Published value
Motor KV value	63 rpm/V
Thermistor	10 kOhm, B3435, +/-1%
Phase inductance	290 uH
Phase current full scale	33 A
Rated bus current	15 A
Static working bus current	0.08 A
Back-EMF constant	0.143 Vs/rad

Available Configuration Paths¶

The current public CPM-100-25 page shows two representative supply configurations:

Without integrated driver: motor and cycloidal transmission assembly for use with an external drive solution selected for the project.
With integrated driver: selected driver housing and interface arrangement integrated with the module.

Final encoder, connector, cable, communication and control functions must be confirmed in the quotation and technical agreement.

A separate dual-encoder configuration is confirmed under the controlled drawing code SG2556D. It has a different axial package, weight and no-load speed from the base configuration and is documented separately.

View CPM-100-25 Dual Encoder Variant

Mechanical and Load Evaluation¶

For early evaluation, use the public envelope and load limits above.

Final suitability depends on:

Mounting geometry
Load direction and load offset
Duty cycle
Speed
Shock loading
Thermal conditions
Driver-equipped or non-driver configuration

View CPM-100-25 Mechanical Interface Reference

CAD, Drawings and Integration Documentation¶

A public STEP model is not currently released in this repository for CPM-100-25.

Detailed STEP models, 2D drawings, mounting drawings and configuration-specific integration documents are available after project review.

Request CAD, Drawing or Integration Files

Noise, Life and Thermal Data¶

Noise-test records, service-life parameters and application-specific thermal limits are not published here as universal ratings because they depend on installation, load, speed, lubrication, duty cycle and thermal conditions.

Request project-specific information when these factors are part of the selection requirement.

Selection Information Required¶

Please provide:

Application and joint position
Rated and peak torque
Required peak-torque duration
Required output speed
Operating voltage
Installation envelope
Duty cycle
Radial and axial load condition
Driver, encoder and communication requirements
Prototype quantity and estimated annual quantity

CPM-100-25 Product Page Custom Cycloidal Transmission Engineering Robot Joint Selection Guide

Engineering Contact¶

Wanrong Wang
International Sales / Sales Engineer, SigGear
wangwanrong@siggear.com