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DON'T
LET YOUR SPOT WELDERS OVERHEAT!
A WATER
CHILLER MODEL
TO
FIT YOUR SPOT WELDERS
AND
OTHER WATER COOLED EQUIPMENT
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The RWMA Manual 4th Edition states that in spot welding using
standard replaceable electrodes where welding is continuous, the
cooling water flow rate should be a minimum of 1-1/2 GPM per tip and
incoming water should not exceed 50 degrees F. These ideal
conditions are not always attainable under production conditions,
but they are a bench mark with which to start. In the summer, use 65o
F water and do not allow your electrodes to “Sweat”,(water
condensation appearing on the tips) |
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Due to water conservation efforts and to save costs, city water should not
be used except for intermittent or emergency use only. Types of cooling
systems used on Resistance Welders include:
 | City water flushed through the machine and down the drain -
EXPENSIVE!!
| Barrels of water with an electric pump, a HOME MADE closed loop
cooling system. - POOR!
| Air Cooled closed loop systems - TOO HIGH WATER TEMPERATURE!
| REFRIGERATED CLOSED LOOP WATER CHILLERS - THE BEST
WAY!! |
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It is true that all these systems will provide some cooling to your
Resistance Welder, but only the Refrigerated Closed Loop Water Chillers
offer a year round satisfactory method to cool your resistance welders. By
using city water you pay for it twice, coming in and going down the drain
with your sewage bill. The water barrels can not keep your cooling water at
a specific temperature. If it is cold the water is cold. If its hot the
water is hot. Along with the temperature variations, contaminants can enter
your machine through the pump and clog cooling lines. This can cause a major
breakdown costing thousands of dollars to correct. The air cooled systems
use a fan and radiator to cool the water. This means you can only cool your
water down approximately 5 degrees above the temperature in your plant. (If
it’s 95 in the plant, your “COOLING” water is 100 degrees!).
The Refrigerated Closed Loop Water Chillers have enclosed water reservoirs
with temperature control thermostats. You set the temperature you want your
cooling water to be and the unit takes care of the rest.
To keep your welders in Top Working Order, use a Refrigerated Closed Loop
Water Chiller. Welding Equipment & Supply Co. can help you in
selecting the correct size unit. Whether it’s for one machine or hundreds,
We can help, It’s our Business! Contact our office today and ask for our
chiller sizing data sheets.
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SMALL UNITS: 1/8 to 3/4 Ton,
MEDIUM UNITS: 1 to 5 Ton,
LARGE UNITS: 7-1/2 to 30 TON or More! |
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DOWNLOAD : "The
influence of Water Temperature and Flow on resistance welding electrode
life"
STRONGLY SUGGESTED READING!!
CHILLER LINKS:
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RWESCO
