Load Shackle – Load Pin Shackle

Load Shackle – Load Pin Shackle

All Massload’s Load Shackles are made with the highest quality materials and manufactured through our specialized Quality Management System. Our in house engineering team will work with you to guarantee the development of a tension link that meets all your requirements.

Our Load Shackles are designed using the latest technology in 3D modeling and FEA analysis.

Custom Load Shackles are available and can be designed to meet industrial safety factors of up to 1000% overload protection. Millivolt output or signal conditioning utilizing a 4-20 mA output for PLC interface are available.


  • Massload’s Made in Canada load shackles come in wireless or cabled configurations
  • Load shackles are a cost effective solution for vehicle road rescue and towing, load lifting, boat lifting, and line tension measurement
  • Standard Crosby bolt type shackle G-2130
  • Accuracy 0.1% to 0.5% FS with multi-point calibration
  • Eliminate cables and communicate with a range of wireless receivers including hand-held displays or PC-based data logging
  • Wireless range up to 800 m (2,600 ft) open field site
  • 2.4 Ghz wireless transmitter
  • Powered by 2 “AA” size replaceable batteries
  • Exceptionally low power for long battery life
  • Wireless remote power ‘on’ and ‘off’
  • Waterproof to IP67
  • Output & display options include wireless hand held display, wireless to PC, wireless to PLC, cabled mV/V, 4-20mA, 0-10V, +/- 10V, 0-5V
  • Custom tension capacities available

Product Details

Load Shackle - Load Pin Shackle

Support local manufacture with Massload’s rugged and reliable industrial grade Load Shackles. Available in T24 Wireless and wired configurations. Wired load shackles support mV/V, 4-20mA and 0-10V instrumentation.

Common applications include vehicle road rescue and towing, load lifting, boat lifting, and line tension measurement.

Massload’s load shackles are based on the industry standard Crosby bolt type shackle and come in capacities of 8.5 t, 12 t, 17 t, 25 t, 35 t. The shackles are equipped with wire lock pin for fast assembly and disassembly.

Massload’s shackle load pins are internally gauged and made from the highest quality traceable US or European Stainless Steel.

The Wireless Load Shackles feature a 2.4 Ghz wireless transmitters with an internal antenna enclosed within a rugged and virtually indestructible enclosure ensuring the antenna cannot be damaged by rough handling. The transmitter is powered by 2 AA batteries and goes into sleep mode when not in use, extending battery life to over 500 hours continuous use equivalent. The wireless signal is very robust providing an open field range up to 2000 ft at 3m height.

Our T24 Wireless Load Shackle transmits load to a variety of T24 wireless readout indicator options including the WL-T24-HS single channel handheld LCD display, the WL-T24-HA 12-channel handheld LCD display, the WL-T24-BSu base station for data capture on PC, and the WL-T24-AO1i for wirelessly interfacing to 4-20mA PLC input.

Massload’s Load Shackles are manufactured and calibrated in-house through our VCAP certified Quality Management System.


Capacities (tonnes)

8.5 t, 12 t, 17 t, 25 t, 35 t (55 t special order)
Custom capacity tension scales available


Tension load accurate to 0.1% FS to 0.5% FS with multi-point calibration

Safe Overload

150% full scale safe overload

Ultimate Overload

300% full scale ultimate overload

Load Pin Full Scale Output

Wired 1 mV/V nominal, 4-20mA, 0-10V, etc.

Wireless to Hand-held Display, 1-channel up to 12-channels
Wireless to base station receiver USB to PC with software
Wireless to wireless 4-20mA output to PLC

Load Pin Excitation

Wired Load pin mV/V: 5 V
Wired Load pin 4-20 mA: 13-28V

Wireless Load Pin: 2 AA Batteries
Wireless Hand Held Display: 2 AA Batteries

Load Pin Bridge Resistance

350 Ohm

Wireless Frequency

2.4 Ghz

Wireless Range

Up to 800m (2600ft) free field at 3m height

Transmitter Wireless Battery Life

500 Hours Continuous (2 months @ 8hrs/day use)
Remote transmitter power down

Operating Temp

Wired:-40°C to +80°C

Wireless: -20°C to +55°C

Compensated Temp

-10°C to +40°C

Sealing Standard

IP-67 protected from dust and high pressure jets of water


Load pin: 17-4 Stainless Steel (USA or European origin)
Bobbin: Stainless steel
Keeper Plate: Stainless Steel
Crosby shackle: Galvanized
Electronic enclosure: HDPE


Capture your wireless signal directly to a PC via the T24-BSu USB base station receiver and display your data on the free T24LOG100 software.

Please click on the following links to download or view additional information:

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