RMA Products Profile
Where Accuracy Meets Innovation in Pipeline Metering
RMA Actuator
Scotch Yoke Actuators (NWS)
from 200 Nm to 600,000 Nm
niwatec Scotch yoke actuators are based on the Scotch yoke mechanism and allow
- Actuating valves and fittings with a control angle of 90°
- End-position adjustment ± 5° as a standard feature
Owing to an innovative modular design, the following combinations of functions are feasible:
- Double-acting actuators, equipped with two separate, independently working cylinders
- Single-acting actuators (spring open or spring close)
Because of the development of a unique rail mechanism and of specifically coated guideways, niwatec GmbH has been able to optimise the actuator efficiency.

Further Benefits of Niwatec Scotch Yoke Actuators
01
Welded casing particularly suitable for low temperature applications
02
Compatible to all commercially obtainable ball valve adaptations
03
End-position signalisation by means of various limit-switch boxes mounted on top of the actuator
04
Modular design of the control unit allows integrating a large variety of control functions
05
Linebreak protection or over pressure/low pressure protection
06
all actuator models can be complemented with emergency-stop solutions for manual operation
07
Integration in already existing customer automation processes possible