MODEL MZ Bolt Tension Calibrator
560 kN Bolt Tension Calibrator, Bolt Sizes 1/2” - 1.1/4” [M12-M30]
| Model Number | MODEL MZ-100 |
| Tension Capacity | 126.000 lbf |
| Tension Capacity | 560 kN |
| Bolt Size Range | 1/2” - 1.1/4” |
| Bolt Size Range | [M12 - M30] |
| Gauge Reading | 1 Kip = 1.000 lbf |
| Accuracy | ±1% |
| Calibration | NIST |
| Tool Weight | 9.5 kg |
| Brand / Origin | Skidmore / USA |
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General product informationFeatures
- Bolt tension accuracy ±1 %
- Bolting test capacity in kN 560
- Bolting test capacity in lb 126.000
- Test bolt sizes metric M12 - M30
- Test bolt sizes inch 1/2” - 1.1/4”
- Dual scale gauge kN – Lb pound
- Pre-Installation verification
- Skidmore calibration certificate
- Lightweight design – Portable
- Delivered in protecting peli case
- Made in USA, by Skidmore Willhelm
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Product technical specificationsTechnical Specifications
Skidmore Wilhelm 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.
The MZ-100 can be used with our adapter kits to test the following bolts sizes in inches: 1/2", 5/8", 3/4", 7/8", 1", 1-1/8",1-1/4" bolts
as well as metric equivalents M12, M14, M16, M18, M20, M22, M24, M27, M30.
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For Accurate Measurement of Bolt Tension In Short Structural Fasteners
Two developments in construction practice have created a demand for the Model MZ bolt tension calibrator: thinner sections of structural steel and the use of tension-control bolts. Designed to accept shorter grip length bolts, the Model MZ provides all the features and capabilities of our standard Model M and MS calibrators.
Whether calibrating power wrenches or testing fasteners, you need no special training, no additional equipment. Simply clamp the calibrator to a beam or column and insert your fastener. Tightening it gives a direct dial pressure reading equivalent to the tension created in the fastener—guaranteed accurate within 1% every time.
For Economical Quality Assurance
With a Skidmore-Wilhelm Model MZ, you can accurately simulate joint conditions, then transfer your tightening procedure to the joint itself. Result: consistent tightening to bolt tension specifications.
The Research Council on Structural Connections recommends that a tension measuring device such as the Model MZ be available at every job site.* Obsolete torque checking methods will not let you meet approved bolt tension specifications.
Avoid Costly Rework and Re-inspection
How do you give the best evidence of properly installed fasteners? First demonstrate with the calibrator that your tightening procedures produce proper bolt tension. Then consistently apply these procedures to the job itself.
Skidmore-Wilhelm Bolt Tension Calibrators let you build the inspection into your selected bolt tightening procedure. Proof of correct bolt tightening is right on the Model MZ calibrator dial.
*Research Council On Structural Connections, "Specification for Structural Joints Using ASTM or A490 Bolts." * Research Council On Structural Connections, "Specification for Structural Joints Using ASTM A325 or A490 Bolts."
Skidmore Wilhelm MODEL MZ Bolt Tension Calibrator - PDF
Skidmore Wilhelm MODEL MZ Bolt Tension Calibrator User Manual - PDF
Skidmore Wilhelm MODEL MZ Bolt Tension Calibrator Spare Parts List - PDF
