Vald Birn A/S

Vald. Birn A/S is one of Europe’s leading producers of transmission components and always stocks a complete range of V-belt pulleys. Lewis Pulleys is the sole Australian distributor of the new Ventilated Turbo Pulley.


Ventilated Turbo Pulley

The latest addition is the internationally patented VTP-Pulley, a V-belt pulley in a completely new design incorporating all aspects of optimized performance of V-belt pulleys. One of the improvements most worthy of mention is a combination of design and quality casting which has resulted in a weight reduction of up to 50% compared to conventional V-belt pulleys. Furthermore, due to the tilted spokes, the internal tensions of the V-belt pulley are reduced considerably.


Iron Quality

The iron quality of GGG 60 allows the circumferential speed to be increased up to 100 m/sec. and the wear of the V-belts is considerably smaller than by the use of grey iron.


Higher Effects Transmission

The V-belts will have a lower working temperature. Up to 17°C lower than with standard V-belt pulleys. This is of great importance for the lifetime of the V-belts.


ACC-Surface Treatment

ACC-surface treatment is a new and more efficient surface treatment of castings, and naturally all of our VTP-pulleys and the other V-belt pulleys are treated in this plant. Among other advantages the ACC-process adds a higher chemical resistance to oil, petrol, brake fluid and lubricants, and exceptional physical properties of the cured film (6H-pencil hardness).


Environmentally Friendly

Primer and final coat paint can be applied directly to the ACC surface coating. The process is environmentally friendly, being free of any air-borne pollutants.


Advantages

The many advantages of the VTP include:

  • Increases the life of the V-belts due to the ventilated grooves resulting in lowering working temperatures (10°C-17°C).
  • Lower weight means less moments of inertia and requires smaller bearings. Also logistic costs are reduced.
  • Is made in nodular cast iron with a new design resulting in smaller tensions in the pulley.
  • VTP®-pulleys make it possible to use the V-belt transmissions at higher ambient temperatures.
  • Shock resistant, diminishing risk of damage during transport and mounting.
  • Allows more than a doubling of the belt speed (up to 100 m/s). Test @ 130 m/s.
  • New surface treatment. ACC- Autophoretic Coating Chemicals –ensures improved rust protection.

VTP Catalogue

The entire VTP catalogue is available for download in PDF format (5.73 MB). Alternatively, view the following sections of the catalogue online:


Quotes and Orders

To request a quote or place an order, please call Lewis Pulleys on (02) 9319 5541 and have a copy of the catalogue handy.