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Water

Weir Gate Positioning made easy with Rolaram Actuators

Application
Positioning a weir gate for water level adjustment.

Solution
One Rolaram electric linear actuator is fitted on each weir gate and has several special features.

• Universal joint at the ram end to compensate
  for misalignment and to resist the load torque
• Geared motor drive with hand wind facility
• Positional indication and end of travel limit switches.
• Non-contaminating grease

This application is in a remote location and an electro mechanical solution was preferred over hydraulics due to low power requirements, no expensive hydraulic power pack, no hydraulic fluid leakage i.e. no water contamination and minimal maintenance.

The Rolaram actuator used is the R175 for moving a dynamic load of 150kN at 240mm/min over a 2700mm stroke while being able to sustain a static load of 330kN.