ChainTrack - Motorised Heavy Duty Track for Theatre Curtains

Overview

The ChainTrack system consists of a machined UHMW section which carries the upper portion of a 3/8” duplex roller chain. The UHMW is inserted into an aluminium extruded profile designed by and exclusively extruded for Triple E. The permissible loading for curtains directly attached to the chain is 20kg (44 lbs.) per linear meter or 6kg (13.2 lbs.) per linear foot.

Specification

ChainTrack systems have a 3 phase motor of at least 0.4kW power which can be increased according to the predicted carrying and frictional loads of the system. The motor is normally located in the stacking / storage areas but can be mounted at the opposite end of the track or, where there are height constraints, side mounted and hung beneath the track. The motors transmit power through a chain sprocket driving the upper section of the duplex chain. The lower section of chain is used to carry the curtains. The curtains attach to the chain every 95mm by means of a purpose designed stainless steel hook and metal wire strop which locates through the eyelets in the curtain webbing.

A return chain sprocket and tensioner should have a means of access to it for maintenance purposes. In the storage / stacking areas the ChainTrack will run back and forth providing a stacking distance equal to that of the curtain length. In the stacking area the extrusion carries a single chain and can be set on varying centres based on standard chain sprocket sizes, to provide adequate spacing between the travelling curtain fabrics of differing fullness and to reduce wear on the surface of the fabric caused by rubbing.

All chain sprockets have two ball raced bearings and are of a similar type to those proven on our test track to have a life expectancy in excess of 50,000 cycles based on a 25m long track.

A timing belt driven limit box is fitted adjacent to the gearbox for setting the extreme end of travel limits. In addition, as a safety feature there are also two mechanical track mounted limits next to the motor which are able to be struck by a clamp on the lower portion of the chain. This will ensure that, in the event of a limit box failing, a secondary means of stopping the curtain is available. It is recommended that all control systems feature either variable speed or soft start features. This is especially important on long systems to avoid chain snatch on start up. There is also a provision for the mounting of an encoder on the gearbox output if required.

Image Gallery

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Spiral Stack for Katowice, Poland
Spiral Stack for Katowice, Poland

ChainTrack Extrusions
ChainTrack Extrusions

Typical diversion sprockets
Typical diversion sprockets

Triangular spiral stack
Triangular spiral stack

ChainTrack stacking area
ChainTrack stacking area



Product Information PDF's

Support

In the United Kingdom contact
Triple E direct on:
01959 570 333
or by email:
info@3-eee.com

Information

Triple E track has a reputation for simple design, rugged construction and ease of installation. It has been the industry standard since 1984, used across the globe in theatre, opera, musicals, TV studios, cruise ships and recital halls and more. Triple E is the first choice for new builds. For a robust, silent, reliable system choose Triple E.

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