Kromer Tool Balancer 7251-09 [8251-09] (253 to 286lb, 9.8ft)

The Kromer 8251-09 (legacy number 7251-09) is a zero-gravity tool balancer for tools weighing 253-286 lb - for example heavy manipulator arms or handling frames - and works equally with any other tool or fixture in that weight range. Constant retraction force means the tool floats weightless and stays exactly where the operator leaves it across the full 9.8 ft of cable travel, rather than being pulled back to a start position. The 8251 is the long-reach heavy frame: 9.8 ft of cable travel from a chill-cast aluminium body with closed ball bearings on both sides and an encapsulated suspension spring. A patented freewheel protects against overrotation when the spring is released, and a cable extension limit stop guards against cable overload. Above 220 lb the 8251 uses a double-spring design. Specifications: Capacity: 253-286 lb (115.0-130.0 kg), infinitely adjustable Cable travel: 9.8 ft (3,000 mm) Unit weight: 90.6 lb (41.1 kg) Kromer item no. 8251 0000 09 High-strength steel cable Infinitely variable load setting via endless screw Freely rotating and swivelling safety hook for suspension, adjustable Housing and housing cover of high-strength chill-cast aluminium Cable drum of high-strength chill-cast aluminium Closed ball bearings on both sides High-strength, encapsulated special suspension spring Infinitely adjustable cable stop buffer Cable wedge allows infinite adjustment of cable length Screw-type spring hook for load suspension Patented freewheel protects against overrotation when the spring is released Safety: Closed unit; rigid, impact-resistant design Suspension via safety hook (freely rotating and swivelling) Includes safety expansion chain as fall protection Integrated mechanism for locking the cable drum Patented freewheel protects against overrotation when the spring is released Spring fracture safeguard standard Cable overload protection via cable extension limit stop Includes ferrule for securing the cable end GS-certified Use only within the load range shown on the rating plate. Not for use as a crane or hoist. Made in Germany by Kromer (Gottenheim), a manufacturer certified to ISO 9001 and ISO 14001. CE and DIN 15112 compliant. Lighter tool? 7251-08 (220-253 lb). Heavier? 7251-10 (286-308 lb). Washdown or food-industry line? The rust-free INOX PRO version has a stainless cable, NSF H1 food-grade lubricant and an AquaGuard drain hole. Browse all zero-gravity balancers. Supported in the USA by Tool Balancers USA.