Low cost delta format robot arm


Finalist: Control Engineering 2022 Engineers' Choice



Based on Igus Drylin(c) delta robot powered by ST Robotics controller and software
Very high speed pick and place
Basic 3 axes, optional 4th axis rotate
Encoder watchdogs
RoboForth user friendly conversational software with English language words
Input/output interfacing, optional I/O expansion
Non-volatile memory, turnkey operation
Optional pneumatic or electric grippers, vacuum pickup
R18 is supplied ready to run -- robot, controller, all cables, teach pad, Windows project manager
Free simple intuitive teach pad, optional Android Bluetooth console
On-screen manuals, tutorials, help sheets, unlimited free technical support
Outstanding reliability from Igus, zero scheduled maintenance, 10 years legacy support
Support for LabView, Matlab etc.


R18 is a low cost entry to high speed pick and place robotics, fast, accurate, phenomenally reliable and easy to program. The mechanics are a standard Igus delta robot assembled ** by ST and coupled with ST controller and software capable of running the robot literally twice as fast as the Igus controller with the added advantage of the RoboForth language and IDE (integrated development environment).
The robot features Drylin(c) toothed belt linear drives and light metal tubular arms terminating in frictionless spherical bearings.
picture of igus delta
The R18 delta uses high power, high speed, high efficiency stepping motors with intelligent micro-stepping for both power, speed and precision. Each axis is monitored by encoders that stop all motion in the event of a collision or other problem. The benefit of the ST package compared to the standard IGUS package is the K11 robot controller using a partnership of CPU and DSP micro-processors and intelligent high resolution MOSFET drives with first and second order damping resulting in much higher speeds while maintaining precision yet running quieter with less heating. The other advantage is the ROBOFORTH II embedded software gets you started easily yet permits the most complex motions, interfaces and peripherals to be programmed, assisted by ROBWIN project manager that brings everything together on one Windows screen.
An optional direct drive 4th axis is available so products can be turned during motion.


Drives:High power micro-stepped hybrid stepping motors
High resolution MOSFET drives, first and second order damping.
incremental encoder watchdogs
Payload (standard):nominal 1Kg max 2Kg
(repeatability and speed degrade with increasing payload).
Repeatability:0.2mm 1
Maximum speed (after acceleration):4m/s
Standard cycle time:1 seconds
Max torque for 4th axis roll:1.5 Nm
Weight15.0Kg (3-axis), Controller 11kg
Power: 110/240v ac 420VA (standard controller)
Environment:IP 54A, 0 - 40C (wider range optional)
MTBF: 20,000 hours (typically over 10 million cycles)
note 1: repeatability measured as a standard deviation of all 3 dimensions at 100% speed and zero payload over 24 hours after a 1 hour
warming up period. Figures for ISO 9283 available on request.


R18 dimensions

** note: robot is disassembled after testing and repacked in Igus carton for shipping.

Support and maintenance

  • 24 hour technical support by phone or email (English only)
  • A service file with exploded diagrams and parts replacement instructions.
  • Optional spares kit.
Copyright ST Robotics International