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ewf series standard stroke balancers tool balancers spring balancer
The EWF Series features fully enclosed housing, fall-arrest device (auto-brake), and manual drum locks. If a spring
breaks, the brake automatically locks to prevent tool damage. The manual drum lock keeps the drum from rotating
to allow easy change out and maintenance of tools. Springs are enclosed in a replaceable cartridge for safe and easy
EWF Series Balancers are also available in an unpainted version. To order, add "NP" at the end of the standard "EWF"
part number.

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Max. Capacity Cable Travel Cable Dia Wt A
lb ft in. lb
EWF-9 9.9 to 19.8 4.27 0.16 7.5 6.9 5.4 .95 .70 13.4 to 64.6
EWF-15 19.8 to 33.1 4.93 0.16 8.4 6.9 5.4 .95 .70 13.4 to 64.6
EWF-22 33.1 to 48.5 4.93 0.19 16.1 8.6 6.2 1.18 .86 16.9 to 76.0
EWF-30 48.5 to 66.1 4.93 0.19 17 8.6 6.2 1.18 .86 16.9 to 76.0
EWF-40 66.1 to 88.2 4.93 0.19 21.4 8.7 7.4 1.18 .86 16.9 to 76.0
EWF-50 88.2 to 110.2 4.93 0.19 11.7 8.7 7.4 1.18 .86 16.9 to 76.0
EWF-60 110.2 to 132.3 4.93 0.19 24.5 8.7 7.4 1.18 .86 16.9 to 76.0
EWF-70 132.3 to 154.3 4.93 0.19 25.1 8.7 7.4 1.18 .86 16.9 to 76.0
EWF-90 154.3 to 198.4 6.56 0.19 48.5 10.5 10.2 1.25 .86 19.4 to 98.1
EWF-105 198.4 to 231.5 6.56 0.19 53 10.5 10.9 1.25 .86 19.4 to 98.1
EWF-120 231.5 to 264.5 6.56 0.19 61.7 10.5 11.8 1.25 .86 19.4 to 98.1
stroke balancers
Balancer Safety Features
plug in cable set cable set fall arrest system
Plug-in Cable Set
Fall Arrest System
For easy cable replacement
Prevents tool from
dropping in the unlikely
event that a spring
Safety Spring Canister
See chart above for measurements
For safe spring
Features and Benefits
ENDO Spring Balancers are a valuable addition to
your assembly line. They support heavy tools with
cable tension equal to the weight of the suspended
tools, which makes them seem virtually "weightless".
As the tool is repositioned the balancer extends or
retracts the support cable to follow the tool's move-
ments. Constant tension on the cable is accomplished
with a spring motor and a tapered drum. The assembler
has the flexibility to reposition the tool, while experien-
cing comfortable operation and less fatigue. Similar
to a Balancer is the Retractor, which does not have
a tapered drum. The tension on the cable increases as
the cable is extended
safety spring canister
Tension Gauge
worm gear system
tension gauge
Worm Gear System
Turn clockwise to
increase tension,
counter-clockwise to
decrease tension
Lets operator see tension
Advantages of Using an ENDO Spring Balancer:
• Suspend tools in assembly lines or other work areas
• Help the assembler with repetitive tasks such as
   installing fasteners: screws, nuts, bolts, etc.
• Hold fixtures, tools, welding guns, and similar
• Improves efficiency and diminishes worker fatigue
• Stabilizes tool positioning and contributes to work
• Contributes to a safer working environment
• Keeps fixtures, tools, and welding guns off of the floor
   and clean.
• Eliminates the need to separately power the balancer
Secondary Support Hangers
secondary support hangers
Drum Lock System
drum lock system
On top and bottom
to accommodate
safety chain
Available to lock the
spool while replacing
a tool
Application Guidelines
• Size the balancer to carry the total weight to be balanced - tool plus all accessories - and stroke (maximum to
   minimum height) required.
• Size to the upper end of the capacity range of the balancer when possible.
• Always attach secondary support cable(s) to the eyelet provided for additional safety.
• Balancers are normally hung vertically and the rope is pulled out vertically. To prevent the rope from wearing on the
   guide, the rope should not be pulled out at an angle to the balancer body. The balancer can also be mounted
   horizontally, however a pulley system must be employed to guide the rope straight out of the balancer then down to
   the tool. Again, care must be taken to prevent the rope from wearing on the guide. A trolley and rail system can be
   used to help the balancer adjust to changing angles.
• If multiple balancers are used in close together, install them at staggered heights to keep them from hitting each other
• The spring tension is factory preset to the mid-range of the rated capacity. To adjust the tension turn the worm gear
   or spindle clockwise to increase the tension and counterclockwise to decrease the tension.

Standard Stroke Balancers, Balancer, Spring Balancer, Tool Balancer, Fall Arrest System Balancer, Auto-Brake
Balancer, Tool Retractor, Tool Positioner, Torque Reel, and Spring Retractors from your source for material handling
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