Cargo Gear Dynamic Load Test Equipment

Portable Digital Crane Dynamometers
for on-board and on-site Proof Load Dynamic Testing of Ship, Offshore, Port, Construction & Industrial Cranes, Winches, as well as Bollard Pull Testing and other applications ie wire rope / cable breaking strength, pull out tests, etc.

Ship & Offshore Crane/Derrick on-board load & pull testing/inspection has never been easier.
The best alternative to weights. Accurate, user friendly, and fast. That is all that is needed.
Proof load testing is an essential part of any inspection, repair and maintenance programme. In many countries proof load testing of lifting equipment such as cranes is a mandatory requirement. A successful proof load test instills confidence in customer, operator and owner.
Crane dynamometer with remote digital indication

Sigma Force Series Wireless Dynamometers
The ideal instrument for inspection and certification of Lifting Equipment

· remote digital indication and control
· Accuracy: 0.05% for 1-50t, 0.1% for above 50t capacity
· Breaking strength four times of capacity
· Allowed peak load 1,25 times of capacity
· Taring range 100% of capacity
· Dynamometer protection rating IP67

Sigma Force series wireless dynamometers are microprocessor controlled for high precision accuracy, with calibration by handheld indicator 280D.
Material: Nickel plated high strength alloy steel
Protection class: IP67class water proof
Accuracy: 0.05% for 1-50t, 0.1% for above 50t capacity
Units: Units are clearly display on the screen, available in the following measurement reading: kilograms(kg), short Tons(t) pounds(lb), Newton and kilonewton(kN)
Shackles: High tension industrial standard G2130 anchor shackle bows, galvanized finish
Gravity regulation: The acceleration of gravity can be
regulated through indicator parameter setting according to different places value
Functions: Wireless indicator with many functions: Zero, tare, Low battery warnings, peak hold, overload warning. User calibration (with password)
Set-Point: Two user programmable Set-Point can be used for safety and warning applications or for limit weighing
Package: Packed with carry case, easy to carry
Communication: RS232 output

280D Indicator Display: 25mm (1’’) 5digits LCD with backlight
Power on zero range: 20% F.S.
Manual Zero Range: 4% F.S.
Tare Range: 100% F.S.
Stable Time: ≤5seconds
Overload Indication: 100% F.S. + 9e
Max. Safety Load: 125% F.S.
Ultimate Load: 400% F.S.
IP-67 protected from dust and water
Body Battery: Standard 18650 Lithium battery, 3.7V/3100mAh
Indicator Battery: Standard 18650 Lithiumbattery, 3.7V/3100mAh
Operating Temp.: -20℃~ + 50℃
Operating Humidity: ≤85% RH under 20℃
Wireless Distance: 200M without obstacle
Wireless Frequency: 433MHz


(Dimensions shown are nominal and subject to tolerances)

Cap (kg) A mm B mm C mm D mm E mm F mm G mm 2-Φ(mm) N.W.(kg)
5000 190 110 60 137 65 30 70 27 2.6
10000 245 110 70 168 65 36 76 41 4.3
20000 312 110 94 206 65 45 85 54 8.5
30000 370 110 114 246 65 50 90 60 14
50000 460 110 140 309 65 60 100 73 25
100000 580 110 180 389 65 80 120 99 53
150000 690 110 220 456 65 90 130 112 89
200000 800 110 250 534 65 100 140 134 128


Marine: Ship hoisting and lifting equipment proof load testing (Main and auxiliary deck cranes, Deck service cranes, Provision cranes, Engine room overhead travelling cranes, Utility winches, Powered hoists, Lifeboat and life raft davits, lifting gear assemblies), Offshore installations, shipbuilding and repair companies, docks and harbours, Boat weighing, Bollard Pull Test.

Industrial: testing overhead cranes, beams, gantries and elevators in Power stations, refineries, factories and crane companies. Breaking point tests by tension for cables, wire ropes, parachutes, etc.

Engineering:  load measurement by structural engineers, construction companies, naval architects and engineers,  logistics management companies.