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Lifts and Escalators MarketLifts and ElevatorsProduct: Twiflex MXSE Brake
In certain circumstances, particularly with freight elevators, it is desirable to hold the car in position by clamping the rails. Excessive rope stretch and the resulting tripping risk (any loading problems associated with the creation of a step between car and landing) are eliminated by positioning the brakes on opposing corners of the car to prevent it from twisting in the shaft. Single or multiple units may be used, according to local lift directives, and the braking force may be adjusted to meet the exact torque requirements of the machine. Brake arrangements using pneumatic, hydraulic or mechanical means of actuation are available, and subsequent development work will soon result in the launch of springapplied - electromagnetically released actuators to suit other brake calipers in the Twfilex range. EscalatorsProduct: Twiflex MXSH Brake
The pivoted arm design of the Twiflex brake inherently accommodates any typical axial float that may be found in the disc/coupling assembly. Self-adjusting actuators ensure the correct pad to disc air gap is always maintained. Ultimate safety is provided by the auxiliary brake acting on a disc directly connected to the headshaft, such that in a chain failure condition the machine may be brought safely to a stop. Status monitoring prevents the escalator from being started if adjustment is required or a fault is sensed. In addition to the brake units, all ancillary items; switches, pedestals, hydraulics, manuals and (if-necessary) on-site training can be provided. If the braking requirement cannot be met with a standard product, a solution may be specifically engineered to suit, as in this instance.
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Twiflex introduced the MXSE (spring applied - electromagnetically released) range of brakes to act on a flange integral to the traction sheave in lifts and elevators.
Twiflex Ltd. helped a major escalator manufacturer by supplying MXSH brakes for installation to ensure accuracy and dependability.