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Load shackles

Strainstall’s load shackles are a robust and effective means of measuring tensile loads in a variety of applications.

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Built to withstand the demands of challenging environments, our load shackles are ideal for compact and reliable lifting and weighing operations across all industry sectors including marine, offshore and subsea.

We are experts in bespoke load shackle design, proving adaptive to the specificities of application. We also provide an in-house repair and calibration service, offering full flexibility when it comes to your lifting and weighing needs.

Strainstall designs and manufactures four types of load shackle including cabled load shackles, wireless load shackles, underwater load shackles and extreme temperature load shackles.

Download Strainstall's load shackle data sheet.

Did you know?

Strainstall is able to take credit card payments for load shackles, so call now and place your order for fast delivery: +44 (0) 1983 203600.

Precision engineered and highly accurate, our load shackles include a stainless steel pin and an innovative load bobbin design with a robust anti-rotation bracket to ensure the load is centralised and accurately monitored. This valuable and precise technology ensures loads are safely distributed and balanced to protect against overload situations and costly accidents.

Features and benefits of load shackles:

  • Designed and manufactured in the UK for high quality assurance
  • Robust construction for use in hostile environments
  • Easy to install, highly accurate and reliable
  • Long design life with corrosion protection
  • Bespoke solutions tailored to your specific needs
  • Supplied with full certificate of calibration 
  • Innovative load bobbin design with anti-rotation bracket ensuring centralised, accurate loading

Cabled load shackle typical specifications:

  mV/V output mA output 
Rated load As required As required
Proof load 150% of rate load 150% of rate load
Non-linearity < ± 1% of full scale < ± 1% of full scale
Non-repeatability < ± 0.1% of full scale < ± 0.1% of full scale
Zero balance < ±0.1% of full scale < ±0.1% of full scale
Environmental protection IP67 / IP68 IP67 / IP68
Safety factor 3x 3x
Operating temperature -25oC to +70oC -25oC to +70oC
Storage temperature -30oC to +80oC -30oC to +80oC
Cable connection Gland or connector Gland or connector
Cable length 5m as standard 5m as standard
Output signal mV/V 4-20mA
Electrical connection 4 core 2 or 3 wire
Recommended excitation voltage 10V N/A 
Maximum excitation voltage 15V N/A 
Recommended supply voltage N/A 24V
Maximum supply voltage N/A  30V
Bridge resistance 700 Ohm N/A 

Wireless load shackle typical specifications:

  Wireless output
Rated load As required
Proof load 150% of rate load
Non-linearity < ± 1% of full scale
Non-repeatability < ± 0.1% of full scale
Zero balance < ±0.1% of full scale
Environmental protection IP67 / IP68
Safety factor 3x
Operating temperature -25oC to +70oC
Storage temperature -30oC to +80oC
Output signal Wireless
Data logging On load cell
Battery type 4 x AA
Active battery type Up to 350 hours
Standby battery type Up to 1700 hours
Telemetry frequency 2.4Ghz ISM
System range Up to 350m
Sampling rate 10Hz (500Hz max)

Diagrams:

Front view Side view

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Cabled load shackle - front view 320x320.jpg

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Cabled load shackle - side view 320x320.jpg

Cabled load shackle typical dimensions:

                  Load rating (tonnes) Weight bow (kg) Weight D (kg) A mm B mm C mm D mm E mm F mm G mm (B) G mm (D) H mm (B) H mm (D) I mm (B) J mm  K mm  L mm  M mm 
8.5Te 8.5 2.6 2.5 43 93 59 28 44 25 95 85 164 154 68 159 110 50 54
12Te 12 4.9 4.5 51 115 72 35 50 32 115 94 201 180 83 209 119 50 55
17Te 17 8.2 7.6 60 136 88 42 63 38 146 127 249 230 99 242 131 50 57
25Te 25 14.2 12.9 74 164 103 50 88 45 178 149 300 271 126 276 136 60 57
35Te 35 19.9 17.4 83 183 111 57 88 50 197 171 331 305 138 297 160 75 57
55Te 55 39.6 35.3 105 235 145 70 114 65 260 203 433 376 180 347 180 88 55
85Te 85 62 53 127 273 162 83 125 75 329 339 527 427 190 391 205 100 55
120Te 120 110 N/A 150 328 200 95 152 89 380 N/A 617 N/A 238 440 N/A N/A 50
150Te 150 160 N/A 170 374 230 108 165 102 400 N/A 671 N/A 275 493 N/A N/A 50
200Te 200 235 N/A 180 420 260 140 190 120 500 N/A 813 N/A 290 550 N/A N/A 50
300Te 300 340 N/A 205 465 305 150 254 130 600 N/A 958 N/A 305 600 N/A N/A 50
400Te 400 560 N/A 230 560 350 175 254 165 680 N/A 1108 N/A 325 695 N/A N/A 50
500Te 500 685 N/A 255 615 570 185 300 180 700 N/A 1158 N/A 350 750 N/A N/A 55
600Te 600 880 N/A 285 675 405 205 300 195 700 N/A 1200 N/A 375 845 N/A N/A 60
700Te 700 980 N/A 310 720 435 217 330 205 700 N/A 1231 N/A 400 890 N/A N/A 60
800Te 800 1100 N/A 310 730 435 217 330 210 700 N/A 1236 N/A 400 900 N/A N/A 60
900Te 900 1280 N/A 330 770 465 230 355 220 700 N/A 1268 N/A 420 944 N/A N/A 60
1000Te 1000 1460 N/A 350 810 480 240 355 230 750 N/A 1290 N/A 420 953 N/A N/A 60

 

(B) = Bow shackle

(D) = D shackle

Diagrams:

Front view Side view

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Wireless load shackle - front view 320x320.jpg

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Wireless load shackle - side view 320x320.jpg


Wireless load shackle typical dimensions:

                  Load rating (tonnes) Weight bow (kg) Weight D (kg) A mm B mm C mm D mm E mm F mm G mm (B) G mm (D) H mm (B) H mm (D) I mm (B) J mm  K mm  L mm  M mm 
8.5Te 8.5 2.6 2.5 43 93 59 28 44 25 95 85 164 154 68 224 200 100 119
12Te 12 4.9 4.5 51 115 72 35 50 32 115 94 201 180 83 274 200 100 119
17Te 17 8.2 7.6 60 136 88 42 63 38 146 127 249 230 99 304 200 100 119
25Te 25 14.2 12.9 74 164 103 50 88 45 178 149 300 271 126 338 200 100 119
35Te 35 19.9 17.4 83 183 111 57 88 50 197 171 331 305 138 361 200 100 121
55Te 55 39.6 35.3 105 235 145 70 114 65 260 203 433 376 180 410 210 110 118
85Te 85 62 53 127 273 162 83 125 75 329 339 527 427 190 454 220 120 118
120Te 120 110 N/A 150 328 200 95 152 89 380 N/A 617 N/A 238 482 N/A N/A 92
150Te 150 160 N/A 170 374 230 108 165 102 400 N/A 671 N/A 275 535 N/A N/A 92
200Te 200 235 N/A 180 420 260 140 190 120 500 N/A 813 N/A 290 615 176 80 115
300Te 300 340 N/A 205 465 305 150 254 130 600 N/A 958 N/A 305 665 203 100 115
400Te 400 560 N/A 230 560 350 175 254 165 680 N/A 1108 N/A 325 762 N/A N/A 117
500Te 500 685 N/A 255 615 570 185 300 180 700 N/A 1158 N/A 350 817 N/A N/A 122
600Te 600 880 N/A 285 675 405 205 300 195 700 N/A 1200 N/A 375 912 N/A N/A 127
700Te 700 980 N/A 310 720 435 217 330 205 700 N/A 1231 N/A 400 957 N/A N/A 127
800Te 800 1100 N/A 310 730 435 217 330 210 700 N/A 1236 N/A 400 967 N/A N/A 127
900Te 900 1280 N/A 330 770 465 230 355 220 700 N/A 1268 N/A 420 1011 N/A N/A 127
1000Te 1000 1460 N/A 350 810 480 240 355 230 750 N/A 1290 N/A 420 1020 N/A N/A 127

 

(B) = Bow shackle

(D) = D shackle

Available options:

  • Cabled and wireless options
  • Extreme temperature and subsea options
  • Safe and hazardous area options 
  • Environmentally sealed to IP67 or IP68

 

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