ENGINEERED STEEL PRODUCTS

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EWA SERIES "SNAP-BACK PREVENTION"
BALANCERS

	The EWA Series safety balancers offer true zero gravity, with no drifting or strain. Tapered drum, quality springs and bearings provides smooth cable travel throughout the stroke. The EWA Series is used in conjunction with heaviest tools and welding machines. They are very similar to the standard ENDO balancers, but incorporate an additional safety mechanisms to prevent injury to the user.

	If the suspension cable is cut, a centrifugal brake engages and the drum locks. This prevents the cable from snapping back and injuring operators or damaging equipment. The distance the severed cable will travel before the centrifugal brake engages is 3.9 inches (100 mm) or less. Used by several automotive manufacturers, the EWA sets the new standard for employee safety and ergonomics.

	• Easy and Precise Tension Adjustment • Cast Aluminum Case • Forged Steel Swivel Hook • Tension gauge	• Fall Arrest Device • Spring Cartridge • Drum Lock • Plug-in Cable Set

EWA Series "Snap-Back Prevention" Balancer


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PRICES

Model No.	Capacity Range (lb)	Cable Travel (ft)	Cable Dia. (in)	Wt (lb)	A (in)	B (in)	C (in)	D (in)	E (in)	PRICES
EWA-22	33.1 to 48.5	4.93	0.19	19.4	8.6	6.2	1.18	0.86	1.69 to 76	$1,202
EWA-30	48.5 to 66.1	4.93	0.19	20.3	8.6	6.2	1.18	0.86	1.69 to 76	$1,243
EWA-40	66.1 to 88.2	4.93	0.19	26.5	8.7	7.4	7.8	0.86	1.69 to 76	$1,680
EWA-50	88.2 to 110.2	4.93	0.19	27.8	8.7	7.4	7.8	0.86	1.69 to 76	$1,741
EWA-60	110.2 to 132.3	4.93	0.19	29.1	8.7	7.4	7.8	0.86	1.69 to 76	$1,927
EWA-70	132.3 to 154.3	4.93	0.19	32.6	8.7	7.4	7.8	0.86	1.69 to 76	$1,980

FOR DIMENSIONS SEE CHART ABOVE

Balancer Safety Features

Safety Spring Canister

Plug-in Cable Set

For easy cable replacement

Snap-Back Protection

Works similar to the Fall Arrest
system, except this is designed
to stop the spool if the cable is
ever cut

For safe spring replacement

Tension Gauge

Secondary Support Hangers

Drum Lock System

On top and bottom to accommodate
safety chain

Available to lock the spool
while replacing a tool

Lets operator see tension setting

Ratchet System Spring Adjust

Worm Gear System

Fall Arrest System

Insert Allen wrench and turn
clockwise to increase tension
and counter-clockwise to
decrease tension

Turn clockwise to increase
tension, counter-clockwise to
decrease tension

Prevents tool from dropping in
the unlikely event that a spring
breaks

Features and Benefits		Advantages of Using an ENDO Spring Balancer:
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 movements. 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 experiencing 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		• 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 equipment • Improves efficiency and diminishes worker fatigue • Stabilizes tool positioning and contributes to work accuracy • 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

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.

Snap-Back Prevention Balancers, Safety Balancers, Heavy Duty Balancers, Snap Back Prevention Retractors, Ratchet System
Spring Balancer, Tool Balancers, Tool Positioner, Tool Retractor, and Spring Balancers from your source for material handling
equipment.