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Packers Kromer Heavy-Duty Single Spring Model 8251 Spring Balancer

The Packers Kromer Heavy-Duty Single Spring Model 8251 is a heavy-duty spring balancer designed for supporting production tools in the 33–209 lb working-load range. It includes floating rotating suspension, a locking safety hook, stepless tension adjustment, quick-change cable, automatic safety detent, safety chain, exclusive cable limiter, easy load leveling, and easy spring change.

 

The Packers Kromer Heavy-Duty Single Spring Model 8251 Spring Balancer is designed for heavier industrial tools that need ergonomic support, controlled positioning, and safer handling during repetitive production work.

 

The 8251 single spring model family covers working loads from 33 lb to 209 lb, depending on the selected variant. This makes it suitable for heavier tools used in assembly, production, fabrication, and industrial workstations where operators need to keep tools suspended and ready for use without carrying the full tool weight throughout the shift.

 

The broader Packers Kromer balancer line is described as a “Zero Gravity” balancer solution used for ergonomic placement of production tools. The brochure states that these balancers help reduce worker fatigue, safety hazards, and tool damage, while allowing improved accuracy and production volume.

 

Key features for the 8251 include floating rotating suspension, locking safety hook, recessed safe adjustments, safety drum lock, stepless tension adjustment, quick-change cable, automatic safety detent, safety chain installed, containerized cold rolled spring, exclusive cable limiter, easy load leveling, and easy spring change.

Specifications

Specification Detail
Model Family 8251 Single Spring
Product Type Heavy-duty single spring balancer / zero-gravity tool balancer
Manufacturer Packers Kromer
Rotation 360°
Clearance 8 in
Safety Hanger Opening 0.95 in
Safety Chain Length 15 in
Safety Chain Rating 3,880 lb
Tool Mounting Point 0.67 in
Depth 10.5 in
Diameter 11.6 in
Length 32.2 in
Weight 65 lb
Cable Travel 9.8 ft
Cable Extension 36 in
Cable Diameter 5 mm
Suspension Floating rotating suspension
Hook Type Locking safety hook
Tension Adjustment Stepless tension adjustment
Cable Feature Quick-change cable
Safety Features Safety drum lock, automatic safety detent, safety chain installed, recessed safe adjustments, exclusive cable limiter
Spring Feature Containerized cold rolled spring
Service Features Easy load leveling and easy spring change
Best Use Cases Heavy production tools, assembly tools, fabrication tools, industrial workstations, repetitive heavy-tool handling, and ergonomic tool suspension

Model Variants

Item No. Model No. Working Load
196802851 8251-1 33–55 lb / 15–25 kg
196802861 8251-2 55–77 lb / 25–35 kg
196802871 8251-3 77–110 lb / 35–50 kg
196802881 8251-4 110–143 lb / 50–65 kg
196802891 8251-5 143–176 lb / 65–80 kg
196802911 8251-6 176–198 lb / 80–90 kg
196802921 8251-7 180–209 lb / 82–95 kg
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