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ENGINEERED
STEEL PRODUCTS |
Priced
Full Line Products Catalog |
20
Technology Way West Greenwich, RI 02817
Toll free:(800) 421-0314 In RI:(401) 272-4570 Fax:(401)
421-5679 |
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EWA
SERIES "SNAP-BACK PREVENTION"
BALANCERS
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![ewa series snap back prevention balancer](images/ewa_22.jpg) |
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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. |
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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. |
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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 |
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EWA Series
"Snap-Back
Prevention" Balancer |
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![](images/model_no_click_yellow.gif) |
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Order
Online, by Phone, or by E-Mail |
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~ Add
items to your online shopping cart ~
Click the Model No. of the item you wish
to purchase. |
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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 |
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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 |
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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 |
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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 |
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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 |
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![balancers](images/drawing.jpg) |
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![heavy duty balancers](images/diagram.jpg) |
FOR DIMENSIONS
SEE CHART ABOVE |
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Balancer
Safety Features |
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Safety
Spring Canister
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Plug-in Cable Set
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![](images/spring_replacement_1.jpg) |
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![plug in cable set](images/plug_in_cable_set_1.jpg) |
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![](images/plug_in_cable_set_2.jpg) |
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![](images/spring_replacement_2.jpg) |
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![safety spring canister](images/spring_replacement_3.jpg) |
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For easy
cable replacement |
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Snap-Back Protection
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Works similar
to the Fall Arrest
system, except this is designed
to stop the spool if the cable is
ever cut |
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For safe
spring replacement |
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Tension Gauge
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Secondary Support Hangers
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Drum Lock System
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![secondary support hangers](images/secondary_support_hangers.jpg) |
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![tension gauge](images/tension_gauge.jpg) |
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![drum lock system](images/drum_lock_system.jpg) |
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On top and
bottom to accommodate
safety chain |
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Available
to lock the spool
while replacing a tool |
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Lets operator
see tension setting |
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Ratchet System Spring
Adjust
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Worm Gear System
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Fall Arrest System
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![ratchet system spring adjust](images/ratchet_system.jpg) |
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![worm gear system](images/worm_gear_system.jpg) |
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![fall arrest system](images/fall_arrest_system.jpg) |
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Insert Allen
wrench and turn
clockwise to increase tension
and counter-clockwise to
decrease tension |
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Turn clockwise
to increase
tension, counter-clockwise to
decrease tension |
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Prevents
tool from dropping in
the unlikely event that a spring
breaks |
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Features
and Benefits |
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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 |
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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. |
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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. |
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