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Techdrives is offering Servomech’s high-speed linear actuators, which are driven by electric motors with output speeds up to 635mm/s.

Electrical operation gives a more controllable alternative to hydraulics and pneumatics, without leakage problems, and is easier to integrate into machine systems.

Options are AC, DC and servo motors, and strokes are available in increments of 100mm from 100 to 800mm.

Construction is in a ‘U’ configuration where the motor is connected to a ballscrew by a timing belt and pulleys.

The pitch of the ballscrew allows different rated speeds.

Encoders for precise control of speed and position can easily be added either to the actuator housing or as part of the motor.

The result is a compact design with running efficiencies of around 70 per cent.

There are five sizes in the UBA range of high-speed actuators.

The smallest model fitted with a DC motor has been used as a door actuator; it delivers a force of 85N at 635mm/s from a 4A 24V motor.

The closed length for 100mm stroke is only 365mm.

In the middle of the range a model UBA2 is used for diverting baggage on airport conveyors.

A force of 1800N is produced at 110mm/s with a frequency of 1400 operations per hour.

The largest model in the range, the UBA4, can achieve 3000N at 265mm/s powered by a 1.1kW AC motor.

As these UBA actuators are based on ballscrews, the duty cycle can be as high as 100 per cent.

Motors can be AC or DC, but for the highest performance and control servo motors are ideal.

With the highly dynamic forces and reversible ballscrews, encoder feedback to a controller is normally necessary together with brakes on the motors.

Optimum selection and installation requires consideration of buckling loads and critical speeds.

With 40 years' experience, Lenze Ltd are specialists in drive and automation equipment for the UK market. Today Lenze employ 60 people and operate with management systems approved to ISO 9001:2008.

Experience and expertise

The engineering comes first. With almost 50 per cent of our staff being qualified engineers, the right-sized technical solution to your problem is our goal. Our vision of right sizing means to work with you in order to achieve the optimum solution in terms of cost and performance.

The complete drive system  

Our products fit together to make the complete drive and automation system. Lenze products include automation, controllers, servos, inverters and geared motors. Our Techdrives division adds essential drive components such as couplings, actuators and locking bushes to complete your design.  

Worldwide, we are there to help you

Lenze companies are in 29 countries and have sales offices in a further 24. Full product information is available on our website and the international helpline makes it easy to contact us.

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