Rotary dosing system

Rotary dosing system for industrial, technical lubricants

The SOMA RDS (Rotary Dosing System) enables rotationally symmetrical products to be greased intelligently: programmable, volumetric and contactless.

SOMA RDS: Rotary dosing system

Rotationally symmetrical components form the key elements of many products and are therefore used in virtually all areas of industry. Wear produced by friction can be seen in many applications involving rotationally symmetrical components and can be significantly reduced by using a defined volume of appropriate lubricant in a specific location.

The SOMA RDS rotary dosing system offers maximum flexibility in fully automatic lubricant dosing for rotationally symmetrical products - configurable, volumetric and contactless. Based on the proven SOMA IDV impulse dosing valve and a hollow-shaft stepper motor, the SOMA-RDS rotary dosing system showcases its benefits in this area.

Any number of dosing points across 360° are freely programmable. Optional full monitoring with the SOMA DIS dosing inspection system.

Advantages of the rotary dosing system

  • Infinitely adjustable, reproducible constant dosing volume
  • Angular accuracy, non-contact dosing
  • Process reliability thanks to integrated dosing piston stroke query
  • Simple integration thanks to the motor controller supplied
  • Valve heating with temperature controller for improving the dosing capability of viscous lubricants including
  • option to have circumferential dosing on the inner and outer diameter using specific dosing nozzles
  • Optional expansion with SOMA DIS dosing inspection system for full monitoring

Areas of application

Sometimes it is not possible to lift out a component and turn it in front of the nozzle because of the cycle time and design factors. With the RDS, any number of dosing points can be freely programmed across 360°. Greasing is also possible from the inside and outside.

  • Rotationally symmetrical components, circular segments that need to be greased
  • Cylinder greasing, internal and external greasing
  • Greasing gears with angular precision

Technical data – Rotary dosing system

An overview of the most important technical data for the SOMA rotary dosing system.

Technical data RDS
Dimensions (L x W x H):
250 mm x 80 mm x 100 mm
Medium inlet pressure:
Pmax = 0.5 - 12 bar
Compressed air supply:
P = 3 - 6 bar
Dosing volume: V = 1 - 45  mm³/dosing pulse *
Dosing frequency (fmax): 20 Hz
Voltage supply: 230V AC, 50 - 60 Hz

* For speeds faster than 3.5 seconds/revolution, a 10 kHz pulse direction terminal  is required. A motor controller is included for installation in your control cabinet. A higher-level  control system performs the activation.

SOMA contact person and contact for questions about dosing valves - Marc Schorlemmer

Advice on dosing technology and dosing valves

Do you have questions about grease and lubricant dosing? We are happy to help. Talk to me.

Personal contact person

Marc Schorlemmer
Phone: +49 2355 50828-941

Service performance as the key to success

Your requirement is our challenge

Reliable technology partner

The variety of industrial lubricants and their fields of application as well as the product-specific dosing requirements often require a dosing component that has been individually adapted to the task at hand.

Based on the required expertise and the technical possibilities, we offer you comprehensive services; from conducting a feasibility analysis to coordinating the dosing components and providing an automated system solution.

As a reliable technology partner, we stand by your side in every project phase and have the right solution for your application and requirement.

Download SOMA Dosing Technology Product Catalogue

 Product catalogue

Browse through our product catalogue online and learn more about our dosing technology products. You can find a Polish version to download under Partner / International.

SOMA supports you in all phases of your project

We support you in all phases of your project

SOMA is at your side as a reliable technology partner in every project phase – design, implementation, training and after-sales. You can count on our experienced team and our expertise.

Non-binding and personal advice

Sometimes you need quick and straight-forward help. We are here for you.

Telephone: +49 2355 50828-0