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Hydraulic Tension Calibrator

Skidmore Wilhelm Calibor Bolt Tension Calibrator



CALL NOW: for Information: 866-522-5464

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Skidmore Wilhelm Calibore

Hydraulic Tension Calibrator

Skidmore Wilhelm’s Hydraulic HS Portable Bolt Tension Calibrator

Bolt Testers

"Bolt Testing" generally describes using our hydraulic load cells i.e. HS, MZ, S, etc. to measure fastener performance as follows:

  • Pre-Installation Verification (PIV) Testing & Rotational Capacity (ROCAP) Testing of structural fasteners per AISC/RCSC specifications.
  • General fastener testing to determine torque/tension relationships.
  • The types of components that can be tested include but are not limited to Hex Bolts, Tension Control Bolts, Anchor Bolts, Studs, Lock Nuts, Direct Tension Indicating Washers, etc.

Skidmore Wilhelm's hydraulic tension calibrator, or bolt tension calibrator, has been the industry standard for testing high-strength bolts since we invented the technology in the 1950's. Our units are required to be used on steel buildings, bridges and other structures using fasteners in tension critical joints.

Our units can safely be used with hand torque wrenches, impact guns, electric wrenches and hydraulic wrenches.

Build Your Own Model MZ

Need to test more than one bolt diameter? You can buy additional bolt diameter kits.

The Model MZ Bolt Tension Calibrator Allows You to Verify:
Fasteners meet minimum bolt tension specifications.
Impact wrenches are properly calibrated to achieve proper tension in the bolted joint.
Tension-control fasteners sheer off at the correct tension.
Direct Tension Indicating (DTI) washers are indicating at proper tension
Bolting crew understands how to achieve proper tension in all types of fasteners
You have the right installation tools and equipment.
If you have any questions or need more information request a free quote today.
Capacity: 126,000 lbs. of Bolt Tension

The MZ-100 can be used with our adapter kits to test the following bolts sizes:
1/2" bolts   -  5/8" bolts   -  3/4" bolts   -  7/8" bolts
1" bolts  -   1-1/8" bolts  -   1-1/4" bolts
as well as metric equivalents M12, M14, M16, M18, M20, M22, M24, M27, M30.XSkidmoreModels Available
Model MZ,  Model HS,  Model K,  Model S,  Model P,  Model J

  • New Lightweight Design — 21LBS!! (vs 46lbs for MS)
  • 126,000 lb Capacity — Will do 1-1/4" A490 bolts!
  • New bushing design eliminates dowel pins
  • Holes predrilled for torque reaction kits
  • Skidmore Accuracy
  • Skidmore Reliability
  • Capacity: 126,000 lbs. Of Bolt Tension
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