Linear chain and geared motors meet the needs of stage and theatre applicationsHigh power to weight ratio, exceptionally quiet running, easy start-up, integrated limit switches and excellent reliability are the qualities that make the Framo Morat power transmission products the ideal choice for stage technology. In the UK these products are available from precision engineering component specialist RA Rodriguez. Within the range are the Linear Chain and Compacta geared motors for use in this application sector. In particular the low installation height of the Linear Chain creates a discrete but highly robust lifting mechanism. And the Compacta motor with a double braking system meets the industry's stringent safety standards.
The design of the precision chain links in the Linear Chain actuation system enables it to push as well as pull heavy loads. The special chain with interlocking links enables the chain to roll up for efficient storage in one direction and form a rigid thrust device in the other.
In the magazine the chain is stored spirally within a narrow chamber making it ideal for applications calling for long strokes where space is at a premium. It provides high positioning accuracy, constant stroke speed and shock-free motion. It is ideally partnered with the Compacta geared motor to power lifting tables. Models in the range are claimed to be up to 10kg lighter than their nearest competitors with the same output torque and speed. The Compacta also provides 22 output speed options by comparison with the maximum of three that RA Rodriguez says are available on alternatives and its motor choices offer a wide range of power and duty cycles.
The design's integral and easily adjustable mechanical limit switch contributes to the product's exceptional flexibility with a speed range 0.9 to 193 rpm and output torques from 6 to 600 Nm. The Compacta AG60 and MR30 models are now available with a double brake in compliance for stage technology.
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