Force Gauges

General Information

There are only three primary variables to monitor the quality of a spot weld; Current, Force, and Time.  The majority of spot welding equipment does not monitor Force.  Many that do monitor “force” are actually monitoring air pressure, and making a judgement to calibrate force from that reading.

Because of the importance of monitoring force, one should have at least one way to measure it.  For troubleshooting purposes in a high production environment, it is common to have more than one way to measure.

These handheld force gauges are clamped between the welding electrodes directly, to learn the force where it counts.

Some common examples where a force gauge can be very useful in troubleshooting:

  • the stroke of the air cylinder could be at the end of it’s travel
  • the weld ram may have gotten out of alignment and is binding (or it’s otherwise not traveling smoothly because of a bad bearing/bushing, lubrication, etc)
  • the air system could have a leak (air cylinder seals could be bad, bad regulator, etc)

Please note; as important as weld force is in spot welding, an accuracy of +/-3% is typically adequate.  Where higher accuracy is required, the DLC gauges read +/-0.5%.  If your accuracy requirements are tighter than that, please contact us for further assistance.

There are other gauges available with more sophisticated features (like “weld-thru” current reading, and more), and plenty of other force ranges.  Please inquire for further details.

Here we list some of the most common force gauges.


Analog-Hydraulic Weld Force Gauge

Analog-Hydraulic gauges are the low cost method for obtaining general force measurements. These gauges are available in a standard block style, with extensions. Sizes range from 600 pounds (lb) up to 10 tons (tn) with accuracy of 2% at the mean and 3% outside of mean for 70% of the gauge’s range.

  • 0-2000 lbs max reading
    • increment every 50 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-8020
    • also available with 12″ extension, changes gauge part number to pt# 601-8020-12
  • 0-3000 lbs max reading
    • increment every 20 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-8030
    • also available with 12″ extension, changes gauge part number to pt# 601-8030-12
  • 0-5000 lbs max reading
    • increment every 100 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-5000
  • 0-10,000 lbs max reading
    • increment every 100 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-8100

Typically priced in the $360-$660 range for the base gauge.  Can be ordered with Certification, extension, and/or steel pad for additional cost. (*pricing subject to change, freight not included, please inquire for current pricing)


Digital-Hydraulic Weld Force Gauge

The Digital-Hydraulic delivers better accuracy than standard hydraulic gauges but at a lower price than all-digital models. The unit of measure is field selectable between pounds (lb), kilograms (kg) and newtons (N). The peak-hold feature allows for reading variable forces, which are common in resistance welding machinery. Gauges maintain an accuracy of 2% for 30% to 90% of the gauge’s range.

  • 0-3000 lbs max reading
    • increment every 1 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-3000DR
    • also available with 12″ extension, changes gauge part number to pt# 601-3000DR-12S
  • 0-5000 lbs max reading
    • increment every 1 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-5000DR
  • 0-10,000 lbs max reading
    • increment every 1 lbs
    • 0.75″ gap required between the electrodes
    • pt# 601-9999DR

Typically priced in the $1300 range.  (*pricing subject to change, freight not included, please inquire for current pricing)


(NEW!) Digital-Hydraulic Weld Force Gauge

DLC Series Gauges offer affordable high accuracy with large LCD display. All models have field selectable units in Lbs, Kg, Newton & KiloNewton. High Strength spring mounted load cell features 150% overload capacity, a large landing pad for electrode pinch point
and requires electrode gap of only 9/16”. Full 5 Digit large LCD Display is environmentally sealed for rugged applications and comes standard with Peak Hold Feature. +/-0.5% accuracy.  NIST Traceable certification.  500ms response time.

  • 0-3000 lbs max reading
    • increment every 1 lbs
    • 0.57″ gap required between the electrodes
    • pt# 601-3000DLC
  • 0-5000 lbs max reading
    • increment every 1 lbs
    • 0.57″ gap required between the electrodes
    • pt# 601-5000DLC

Typically priced in the $1700-$1800 range. (*pricing subject to change, freight not included, please inquire for current pricing)


Digital-Electronic Weld Force Probe

The premium Digital-Electronic gauge supplies the highest accuracy (0.5% for 95% of the gauges range). Field selectable units for both pounds (lb) and kilograms (kg). The gauge has large LCD readouts with peak-hold capabilities. All functions are electronic which prevents variations caused by flexing.  Analog output, auto shut-off, no-weld setting not required (“weld-thru”, but does not read current).

Note: can only be ordered to read in Imperial or Metric.  The following part numbers are for Imperial (pounds [lbsf]) only.  Please inquire for Metric (Kg) part numbers and pricing.

  • 0-1000 lbs max reading
    • increment every 1 lbs
    • 0.25″ gap required between the electrodes
    • pt# 601-8010MD
  • 0-3000 lbs max reading
    • increment every 1 lbs
    • 0.25″ gap required between the electrodes
    • pt# 601-8300MD
  • 0-5000 lbs max reading
    • increment every 1 lbs
    • 0.25″ gap required between the electrodes
    • pt# 601-8500MD
  • 0-10,000 lbs max reading
    • increment every 1 lbs
    • 0.25″ gap required between the electrodes
    • pt# 601-8100MD

Typically priced in the $3000 range.  (*pricing subject to change, freight not included, please inquire for current pricing)


 


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