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Bolting tools

TorcUP TLM ultrasonic bolt elongation meter

Measures the actual elongation and preload of a bolt, with ultrasound
  • Brand
    TorcUP
  • Measuring length
    1" – 48" (25.4 mm – 1.22 m)
  • Memory
    8,000 measurements
  • Weight
    383 g
  • Available for
    Buy
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TorcUP TLM ultrasonic bolt elongation meter

The TorcUP TLM (Torque Load Management) uses ultrasound to measure the actual elongation of a bolt or stud during and after tightening, however it is tightened. The TLM measures the change in transit time of an ultrasonic pulse through the bolt and converts it to time (nanoseconds), elongation, load, stress or percentage elongation. This works in bolts of virtually any material, from 1 to 48 inches (25 mm to 1.22 m) long.

Not sure which tool best suits your application? Contact us; we will be happy to advise you.

Features

Actual bolt load

Measures the elongation in the bolt, instead of deriving it from the torque.

Periodic monitoring

Check the preload of bolts during shutdowns, throughout their service life.

Compare waveforms

Compare the unloaded with the loaded waveform on the display.

Measured quantities

Time (nanoseconds), elongation, load, stress and percentage elongation.

AutoSet

Automatically finds the detection signal, optimises the gain and adjusts the display.

Alarm limits

High and low limits with beeper, bar and LEDs; can be linked to switching off the pump.

Data logging

8,000 measurements and waveforms in groups; export via RS232; 64 custom setups.

Field calibration

Vector and linear regression; factory calibration traceable to national standards.

Applications

Critical bolted joints

Flanges, pressure vessels and machine joints where the preload matters.

In combination with hydraulic wrenches

Tighten with a TorcUP wrench and measure the elongation at the same time.

Inspection and maintenance

Checking the preload of existing bolts.

Technical data

  • Bolt measuring length
    1" – 48" (25.4 mm – 1.22 m)
    Measurement
  • Measured quantities
    Time (ns), elongation (inch/mm), load (kip/kN), stress (ksi/MPa), elongation (%)
    Measurement
  • Resolution
    Normal or high resolution (extra decimal)
    Measurement
  • Screen
    1/8 VGA, 240 × 160 pixels; RF, corrected and large-digit display
    Display
  • Memory
    8,000 measurements and waveforms, 64 setups
    Data
  • Interface
    RS232
    Data
  • Dimensions
    63.5 × 165 × 31.5 mm
    Construction
  • Weight
    383 g (with batteries)
    Construction
  • Power supply
    3 × AA (1.5 V alkaline or 1.2 V NiCd)
    Construction
  • Warranty
    13 months
    General

Accessories

Transducers

In various sizes and frequencies, depending on bolt and application (see manual).

Temperature sensor

For temperature compensation of the measurement.

Related products

Documentation