R.J. Kates rents Resistance Heat Treatments for both small and large jobs. The benefit of the use of resistance heating pads is that they can be used for small heating jobs, such as the one demonstrated by the upper photo, by using a inverter welder as they only require 40-60 volts dc at a very low current to power them.

These resistance heat treatment pads are highly durable and able to withstand high temperatures over long durations.



For large surface areas such as the pipe welding at CS Mechanical pictured in the photo in the right the larger pad units unit can be used.

Advantages of Resistance Heat Treating include:
Multiple zones per single heating console
Ideal for heating multiple welds and areas at one time
Good for heating large and thick-wall sections as well as small sections and welds
High heating temperatures can be reached

AFTEK is the sole remaining manufacturer of resistor controlled welding machines in the USA. In 1977, Big 4 Manufacturing introduced their innovative Series 77 Control, and the features introduced then remain at the heart of the AFTEK design: Edge-wound coils for better heat dissipation (thus better current control) and rotary switches for current selection.

AFTEK and Big Four grids have been used to build nuclear power plants, to build and repair US Navy ships, for piping and vessels and with the exclusive Demand Pulse MIG, the thinnest sheet metal for food handling equipment, computer cases, aluminum boats.

One of the oldest welding technologies combined with one of the newest electronic switches makes an unbeatable combination for the toughest welding jobs


Portable and mounted air compressors from 10 to 400CF for carbon arc or simple pneumatic tools.
Single or in 4, 6, or 8-pack configurations of 300 Amps. and 400 Amps. inverter welders.
This equipment overcomes the problems of welding joints near each other.
Perform welding or cutting operations with a variety of track & trackless carriages.
Portable, multi process power sources to go anywhere you need to MIG, TIG or Stick weld.
Stud welding needs from 110V. capacitor discharge “CD” for pin welding to 1″. Through deck applications.
Blowers remove fumes and dust from workspace; rod ovens keep your electrodes dry.
For cutting metals from a thickness of gauge material up to a 2″ depth.
For TIG and Stick welding, these TIG power sources are intended for critical AC or DC TIG welding.
We have a variety and depth of welding and cutting cabling and accessories.
Unique tool that allows the target to be held and rotated while welding.
300-500 Amps. for Stick, MIG, self-Shielded, and Arc Gouging needs.
Attach your drills to steel via their magnetic bases using either Hougen and standard Jacobs chucks.
5KVA to 300KVA power generators. Save up to 40% on fuel with our welding “multi packs”.
100-300 Amps. for Stick, MIG, and self-shielded welding plus auxiliary power.
Removal and filtration of welding fumes in confined spaces. 4-stage filtration with HEPA H12 class final filter
All the equipment you need to run temporary power services on site for your welding equipment.
Runs virtually any MIG or self-shielded wire.

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