Back To Newsroom

Twiflex VCSD-VR Brakes for 5.6 km Overland Coal Conveyor

Twiflex Ltd. has supplied VCSD-VR caliper brakes for a 5.6 km (3.4 mile) long belt conveyor system at the Wiggins Island Coal Export Terminal (WICET) in Queensland, Australia. Various grades of coal are delivered via rail and conveyor, piled in a 1.9 million ton capacity stockyard area, and mixed to meet specific customer specifications prior to export. When the first-phase expansion of the massive project is fully operational, existing long-term coal export capacity will increase to 80 mt/y.

To meet the challenging application requirements, Twiflex provided the large pad version (28,990 mm2 each pad) of its popular VCSD brake designated the “VR”. The larger pads provide an increased braking path for higher rubbing speeds and greater thermal capacity.

VCSD-VR15 Model brakes, with a 15.7 kN braking force, were installed to act on a 700 mm diameter disc on the conveyor’s high-speed drives. VCSD-VR06 model brakes, with a 6 kN braking force, were specially designed to act on 1300 mm diameter flywheels of six other drives on the conveyor. All VCSD-VR brakes supplied feature special paint and stainless steel parts to meet the C5 specification for very high corrosion environments.

The Twiflex VCSD is a spring-applied, hydraulically-released disc brake which has been designed for use in harsh conditions such as mining, while providing superior heavy-duty dynamic and emergency stopping performance.

The VCSD modular brake design incorporates Twiflex’s unique “parked-off” feature. This allows the brake to be adjusted under hydraulic pressure so when it is removed, there is no stored energy, making it safe for maintenance work.

Twiflex VCSD-VR Brakes


  • Spring-applied, hydraulically-released stopping and parking brake
  • VR models feature large pads (28,990 mm2 each pad) for higher rubbing speeds and greater thermal capacity
  • Unique “parked-off” feature
  • Special paint and stainless steel parts to meet C5 spec

Contact Information

9 Briar Road, Twickenham
Middlesex TW2 6RB – England
Phone: +44 (0) 20 8894 1161
Fax: +44 (0) 20 8755 5601

Twiflex (USA)
2800 Fisher Road
Wichita Falls, TX 76302
Toll Free: 844-723-3483
Phone: 940-723-3483
Fax: 940-723-3436

Stieber GmbH Dept. Twiflex
Hatschekstraβe 36,
69126 Heidelberg, Germany
Phone: +49 (0) 6221 304719
Fax: +49 (0) 6221 304731

UpComing Tradeshows

June 29 - July 01, 2021
AISTech 2021
Nashville, TN

September 13-15, 2021
MINExpo International 2021
Las Vegas, NV

October 01-01, 2021
International WorkBoat Show 2021
New Orleans, LA