Altra HDOCB Solutions

Caliper Brakes

Twiflex Limited GMR
Twiflex VKSD Brake
Twiflex VMS Series

Twiflex Limited

GMR Caliper Disc Brakes

The Twiflex GMR and GMR40 series of disc brake calipers is suitable for use with discs of 25.4mm, and 40mm thick respectively. Minimum disc diameter is 610mm.

Normally one or two calipers are used per disc, but the number may be increased depending on disc size. The brakes may be positioned at any angle around the periphery of the disc, but should ideally be mounted horizontally (i.e. at the 3 o’clock or 9 o’clock position). If the caliper mounting angle is greater than 10° from the horizontal, or on vertical shaft applications, it should be fitted with an inclined mounting kit.

Twiflex Limited

VKSD

The Twiflex VKSD disc brake caliper is comprised of two halves, or spring modules, and is suitable for use with a minimum disc thickness of 20mm. The modules are mounted each side of a central mounting plate 12mm thicker than the brake disc. Minimum disc diameter is 1000mm.


A very popular disc brake caliper comprising of two modules located either side of a mounting plate of any thickness to accommodate the discs. Manufactured to stringent world wide mining authorities specifications.

 

Twiflex Limited

Model VMS2

Spring-applied, hydraulically released modular disc brake

  • 300 kN Braking Force
  • On-site torque adjustment to precisely match application needs
  • “park-off” facility for fast pad changing without special tools'
  • Spring-Applied – low pressure air release
  • Controlled reversal of belt
  • Automatic release of belt tension
  • Stops in either direction
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Twiflex MS Series
Twiflex T40
Twiflex MX Spring Applied Series

Twiflex Limited

MS Series


The MS series of disc brake calipers are used with brake disc 12.7mm thick

Normally one or two units will be used per disc but the number may be increased, depending on disc size.

The brake units can be positioned at any angle around the periphery of the disc, but ideally they should be mounted horizontally ( in 3 or 9 o’clock positions ) in relation to the disc.

Twiflex Limited

T40 Series

The Twiflex T40 disc brake caliper is a split caliper design suitable for use with a minimum disc thickness of 20mm. The modules are mounted on each side of a central mounting plate of the same thickness as the brake disc. Minimum disc diameter is 300mm.

Twiflex Limited

MX Spring Applied Calipers

The Twiflex MX13, MX25, MX30 and MX40 series of disc brake calipers is suitable for use with discs of 12.7mm, 25.4mm, 30mm and 40 mm thick respectively. The SMX caliper is only suitable for use with discs 12.7mm thick. Minimum disc diameter is 300mm.

The MX/SMX calipers may be used with any of the Twiflex series of thrusters and feature a patented link mechanism to ensure uniform pad wear.

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Twiflex VCS Disc Brake Caliper

Twiflex Limited

VCS Disc Brake Caliper

A disc brake caliper often used in the mining industry for man carrying winders, comprising of two modules located either side of a mounting plate of any thickness to accommodate the discs.

Nine standard spring packs are available, all to stringent mine safety standards.

Product Features

  • Modular construction for easy maintenance and assembly
  • Rugged design and corrosion protection for reliable service in challenging operational environments
  • Low Pad Pressures
  • Pad Area = 296.8 cm2 (2 Pads)
  • Designed for dynamic use with ininite fatigue and exceeding mining standards on stressed parts
  • Easy setup and adjustment to precisely tailor to wide ranging operational requirements
  • Suitable for “soft braking”
  • Wide choice of designs based on standard components
  • Backed by a global network of dealers
  • Air gap adjustment from rear
  • Monitoring sensors for brake on/off and pad adjustment are available

 

 
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