LIFE TEST WINNER
Spring balancers and zero gravity balancers from Carl Stahl Kromer offer a five times higher service life than comparable products from other manufacturers.
PRECISION TEST WINNER
The zero gravity balancers from Carl Stahl Kromer impress with their ideal balancing performance that distinguishes them clearly from many competition products.
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Extended searchBrief History of Kromer Spring Balancers and Zero Gravity Balancers
1917
Design and development of spring balancers and zero gravity balancers of the former “MM” class, with a load capacity of up to 60 kg. Due to the production techniques available at the time, the designs were limited to using only solid castings or sheet steel parts.
1924
Extension of the zero gravity balancer line in the upper load range to a maximum load capacity of 136 kg. For spring balancers, the range was 0.5 to 5 kg. First use of a spring fracture safeguard mechanism.
1956
Modernization of the production facilities for the Kromer zero gravity balancers. This speeded up the manufacturing process by up to 20%.
1966
First use of a Kromer balancer in the medical-technical field (compensating the weight of heavy loads on X-ray machines).
1972–1976
Complete revision and modernization of all Kromer spring balancers and zero gravity balancers. Thanks to the use of advanced plastics, the weight of these products could be reduced by more than 60% in some cases.
1982
Design and construction of a balancer as a customized special solution with a load capacity of more than 460 kg.
1996
Patent application for a globally unique high-safety double-cable balancer (type 7248) that uses a second cable to hold the load if one cable breaks, thus reliably preventing it from crashing down, no additional external devices needed.
1997
Launch of the high-safety double-cable balancer type 7248.
1998
Redesign of the spring fracture safeguard for the models 7240, 7250 and 7260, changing over to a path-dependent system that is automatically replaced as well when replacing the spring. As a result of this measure, the type numbers were changed to 7241, 7251 and 7261. Conversion kits were made available to ensure the long-term availability of spare parts for existing products.
2002
New development of the Kromer spring balancer series 5200.
2003
New development of the Kromer zero gravity balancers type 7235/7236 with load ranges between 15 and 55 kg and a cable travel of 2.0 m.
2007
Revision of the load setting mechanism for the Kromer balancer type 7228. The external clamping spring was replaced with a locking system (shaft) that prevents wrong operation.
2008
Patent application for a suspension spring protection device that effectively prevents operating errors when replacing the spring.
2009
Complete redesign of the spring balancers, with load capacities of up to 14 kg and a lift or cable travel of 3.0 m. The clamping spring previously used for load setting was eliminated across the entire product range and completely replaced with locking systems or worm gears.