Robot Joint Modules

eRob70F Ultra-Short Robot Joint

Ultra-short form factor — 70 mm F-type joint at only 60.4 mm axial length

ModeleRob70F-Ultra
SerieseRob Series
Global Stock Network Custom Gear Ratios Application Engineering STO Safety Compliant
eRob70F-Ultra product image 1
eRob70F-Ultra
Model

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Product Overview

The eRob70F Ultra-Short is the compact flange-output variant of the eRob70F, achieving an axial length of just 60.4 mm (without brake) in a 70 mm outer diameter, 0.77 kg package. Delivering 35 Nm peak torque from a 75 W motor, it is optimised for space-critical installations where every millimetre of axial length matters.

The eRob70F-Ultra is a fully integrated rotary actuator combining servo motor, harmonic gear reducer, encoders, servo electronics, and compact mechanical packaging in a single assembly.

📐
Outer Diameter
⚖️
Weight
🔩
Hollow Shaft
18 mm
💪
Max Torque
🔄
Max Speed
⚙️
Gear Ratios
🎯
Output Type
Integrated robot joint module

Key Specifications

Critical performance parameters at a glance

📊
70mm
Outer Diameter
📊
60.4mm
Length (without brake)
📊
0.77kg
Weight
📊
35Nm
Peak Torque
📊
60RPM
Maximum Speed
📊
75W
Motor Power
📊
EtherCAT, CANopen, Modbus
Communication Protocols

Technical Specifications

Physical

Outer Diameter
70 mm
Length (without brake)
60.4 mm
Weight
0.77 kg

Performance

Peak Torque
35 Nm
Maximum Speed
60 RPM
Motor Power
75 W

Control

Communication Protocols
EtherCAT, CANopen, Modbus

Product Attributes

Weight
0.77 kg
Length
60.4 mm (no brake) / 67.7 mm (with brake)
Output Type
F-type flange (ultra-short)
Motor Power
75 W

Industrial Applications

These products support advanced robotics, automation, and industrial motion systems where precision, durability, and integration quality are important.

🏭

Industrial Automation

Used in automation systems where dependable motion performance and integration quality are required.

AutomationIndustrialMotion control
🤖

Robotics

Supports robotic subsystems that require reliable motion, control, or feedback components.

RoboticsPrecisionOEM
⚙️

Machine Building

Integrated into custom equipment and OEM platforms where motion-system performance matters.

Machine buildersOEMIntegration
🔬

Precision Equipment

Applied in specialist systems requiring stable performance, compact packaging, and dependable operation.

PrecisionCompactReliable
📦

Material Handling

Used in handling, transfer, and positioning systems across industrial applications.

HandlingPositioningIndustrial
🛠️

Custom Engineering

Selected for engineered systems where application-specific performance and packaging are critical.

CustomEngineeringSystems
Customization Available

Factory Modification & Custom Sourcing

This product supports custom configurations and equivalent sourcing

Available Modifications

  • Torque and speed ratio customization
  • Mounting interface modifications
  • Connector and wiring specifications
  • Housing and enclosure options

Sourcing Options

  • Standard product sourcing
  • Equivalent product identification
  • Replacement part sourcing
  • Volume pricing (MOQ may apply)

Request Pricing & Availability

Submit an RFQ for standard products, custom configurations, or equivalent alternatives

Expert Answers

Frequently Asked Questions

Technical answers sourced from engineering specifications and integration guides.

The eRob70F Ultra-Short achieves just 60.4 mm axial length in a 70 mm diameter, 0.77 kg package, optimised for space-critical robot joint installations.

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