Ball Screw Actuator

Typical Applications

POWERAM Ball Screw Linear Actuators are typical used for linear movement or actuation for high duty or lower power consumption applications to Tilt, Pivot, Lift, Lower, Position, Roll, Slide, Open, Close, Tension, Lock and Unlock. This means they are ideal for applications such as lifting platforms, access platforms, folding stairways, roller lifts, door locks, hood lifts, hatch opening, diversion chutes, conveyor tracking, conveyor flow direction, gate lifts, shutter door lifts, wire tensioning, platform positioning, levelling systems, and many more. Ideal for use as linear actuation solutions in many sectors from defence, nuclear, aerospace, metal processing, medical, automotive, offshore wind, marine, oil and gas, communications, paper, food processing and many more.

POWERAM Advantages

POWERAM electric linear actuators are a better alternative to hydraulic linear actuators for most general industrial applications, providing improved performance, lower lifetime cost, improved safety and better for the environment. They also make an ideal linear motion solution for automating manual processes.

• Unified design helps machine builders standardise system and machine design
• High corrosion resistant full stainless steel version
• Easy upgrade path from a screw jack to POWERAM actuator
• Ball Screw version for medium to high duty or high speed or low power consumption applications
• Motorised or non-motorised options
• Easy integration into control systems
• Modular actuator building system and custom designs available up to 2000kN
• Build actuator systems easily either mechanically linked or electronically synchronised.

Special Designs

The POWERAM linear actuator design has successfully been applied in many varied ‘special’ applications, requiring for example:

• Safety Nut for extra emergency load holding
• Full power stop nut for extra emergency safety end of stroke stop
• Geared motor drive at right angles, parallel or in-line with actuator ram
• Clutch / torque limiter
• Brake mounted directly to actuator
• Limit switches installed directly to the actuators ram
• Integrated absolute or incremental encoder feedback devices
• Trunnion mounts midway on ram outer tube
• End flange mount on ram outer tube
• Subsea version in flooded or pressure compensated design for depths down to 3000m
• Spherical bearings located in end fixings on ram or actuator gearbox
• Servo motor drive integration with or without planetary gear head
• Anti-rotation mechanism for actuators ram when application load not rotationally constrained
• Special custom designs available up to 2000kN

To discuss your requirements further please Contact Us or submit an application analysis form.

Actuator Systems

The POWERAM linear actuators can be connected together in systems so that multiple units can be operated and controlled together. These actuator system arrangements or configurations can be built in many formats with the use of bevel gearboxes, motors, reduction gearboxes, drive shafts, couplings, plummer blocks and motion control devices.

Four of the most popular system configurations are the ‘H’, ‘U’, ‘T’ and ‘I’ configured actuator systems.

Note that multiple POWERAM actuators can be linked together mechanically or electrically. The latter is useful if there is no space for linking drive shafts.

If multiple ball screw actuators are connected in a mechanically linked system then you still require a brake on the system for holding position due to the high efficiency of the actuator. The brake can be included in the system either as a stand alone device or as a brake motor mounted to the actuator.

Actuator systems are not limited to the number of actuators shown in illustrations. They are regularly supplied to clients with 2, 4, 6, 8 actuator systems. Larger systems can extend up to 16 or higher. With the use of electronic synchronisation/ control multiple systems or actuators can be used in unison. Extending the possible number of actuators used in unison in excess of 100.