DELTA RL4-900-3kg

Article number: AL_10004

Delivery time: 12-14 weeks after order confirmation (For larger quantities please contact us. The delivery time specification also applies to spare parts.)

This type of robot is based on the principle of parallel kinematics.
All drives are mounted in a fixed position on the robot head. Motor cables are not moved. The robot has three (3) translational and one (1) rotational degree(s) of freedom.
This robot mechanics is characterized by its attractive pricing. Due to the joint design, the nominal payload is limited and the average performance and/or lifetime is reduced compared to classic autonox mechanics.
The robot is delivered in pre-assembled main assemblies to save space.

Scope of delivery
  • Robot mechanics incl. gearbox
  • Servo motor adapter
  • Threaded protection caps
  • Transport and packing instructions

Note: The operating instructions and documentation on commissioning, service, maintenance, etc. are available in the password-protected download area of the respective product page (
Field of application: Standard Design
Kinematics: Parallel
Translatory Degrees of Freedom (X,Y,Z): 3
Rotational Degrees of Freedom (α,ß,γ): 1
Nominal payload [kg|lbs]: 3 | 6.6
Working area-diameter [mm|in]: 900 | 35.4
Working height outside [mm|in]: 250 | 9.8
Working height center [mm|in]: 350 | 13.8
Max. acceleration torque of the rotation γ around Z at the output [Nm|in.lbs]: 7,2 | 63.7
Nominal torque of the rotation γ around Z at the output [Nm|in.lbs]: 4,8 | 42.5
Max. speed of the rotation γ around Z at the output [1/min]: 500
Nominal speed of the rotation γ around Z at the output [1/min]: 400
Bearing type of the telescopic shaft(s): Roller bearing
Bearing type of the arm joints: Journal bearing
Lubricants of the bearings: Food-grade (FO)
Lubricants of the gearboxes: Food-grade (FO)
Cleaning: No high pressure
Ambient temperature [°C|°F]: 0 to +40 | +32 to +104
Relative humidity level [%]: 95 (free of condensation)
Mounting position: Floor, Ceiling, Wall (on request), Angle (on request)
Special features:

The head plate is not included in the scope of delivery, i.e. the gearbox supports have to be attached directly to the machine frame.
Advantages: Compact, inexpensive

All given values are nominal values (nominal payload referred to a nominal performance) and can vary under realworld conditions depending on the application (tool specifications, load distances, reduction (partly) of the nominal performance when using food-grade lubricants, ...). Please consider our technical data sheets regarding the load capacity.
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  • Operating manual robot mechanics (PDF)
  • Operating manual gearbox type 3 (PDF)
  • Operating manual gearbox type 1 (PDF)
  • Load on tool flange (PDF)
  • Dead weight and moments of inertia (PDF)
  • Full documentation (ZIP)
With the download you accept the general terms of sale and supply, privacy policy and terms of use.
Note: If the documentation in the download area is not yet complete, please contact us (
Gearbox article numbers for this robot mechanics
Function Article number Document
Drive of the upper arms MT_WST00108764-xx-FO Operating manual gearbox type 3 (PDF)
Drive of the telescopic shaft for rotation γ around Z MT_WST00109440-xx-FO Operating manual gearbox type 1 (PDF)