Our devices have been designed with the following aim:

The traditional features are robustness and reliability, the main qualities expected from rack-and-pinion jacks.

	To achieve this, our devices are produced with:
			case-hardened chrome nickel steel gearing
			generously sized racks made of superficially hardened semi-hard steel
			(for forces of more than 3 tons)
			rack cases made of strong sheet metal
			high-quality surface coating
			(painted parts sanded and unpainted parts electrogalvanized).

The new technology features result from the use of modern techniques and materials for cost-effective, high-quality manufacturing (laser, water jet, synthetic and composite materials...)

Replacement of old-fashioned 4-tooth racks by 5-tooth racks with involute profile.
	improved efficiency, meaning less wear
	better operation, especially useful for electrically operated devices
	trimming of wheels and racks to fit a standard profile.

Ringed bushings made of composite materials
	less wear
	reduced servicing since the rings can withstand operation out of the water.
	maintenance made simpler by easy, inexpensive ring replacement

Guiding of racks in cages made of synthetic materials
	good operation in spite of random greasing of racks
	maintenance made simpler by easy, independent replacement
	of each cage block.