Welding chillers
May 20, 2021
Without proper temperature regulation, a
lot of manufacturing processes that are heat sensitive will either deteriorate
or result in an altered finished product. Various types of industrial chillers
are available for widespread use in metallurgy and industrial welding.
Industrial welding chillers for resistance welding like spot welding, MIG
welding, and TIG welding can help improve product quality and process
efficiency.
Welding chillers are commonly used for
resistance welding and its variations such as spot welding, as well as TIG and
MIG welding. Chillers or recirculating water systems are used to control
electrode tip temperature. Over time, chillers have progressively replaced
recirculating city-water systems because they are less costly to operate and
can provide more accurate temperature control.
Welding heat is the most significant
parameter to control, because it directly correlates with how much current can
be consistently applied to each weld. When using a chiller, steadier welding
current can be produced and therefore a consistent amount of heat is applied to
every weld. Welding tips last longer, and welded part production improves, all
while ensuring project repeatability.
In production environments with multiple
welders or robotic welding systems, one central chiller can be used to manage
all equipment. A general rule for sizing chillers is to plan for a 1-ton of
chilling for every 100KVA of welder capacity.
All of oumal welding process chillers
feature a variable-speed compressor and condenser fan for higher efficiency,
precision temperature control within 0.5°℃, reliability and quieter operation. They are available as portable
units (1-30 tons) or as large-capacity packaged chillers (40, 50, or 60 tons).
Modular chillers are available over 60 tons. All of our chillers can be used on
new welding equipment, or be used to upgrade or replace existing welding
chiller systems.
Oumal has been manufacturing temperature
control units and process chillers for over 15 years. Our team of knowledgeable
engineers can help with any welding chiller solution. Our insightful sales and
support staff are available to assist with application questions, as well as
standard and custom product specifications that ensure successful installation,
operation, and maintenance.
A more accurate way of determining
appropriate chiller size is by computing BTU using a standard formula that also
accounts for the duty cycle.
To calculate for resistance welding:
BTU/hr = (welder KVA) x (duty cycle) x
(0.85) x (0.6) x 3415 BTU/hr
To calculate for resistance welding:
BTU/hr = (welder KVA) x (duty cycle) x (Eff
power supply) x (Eff heat collection) x 3415
Eff. power supply = the percentage of
output to input power
Eff. heat collection = the percentage of
heat absorbed by chilling water (varies by approximately 50-70%)
Duty cycle = weld time on/ time elapsed
Our process chillers can easily be
customized and used to fit any welding need, as a spot-welder cooler,
TIG-welder water cooler, or any other scenario. To discuss your welding chiller
needs and goals with our experts request a quote or contact us today!