Where a 20-tonne crane scale fits
Use the OCS 20-tonne scale on overhead cranes, gantries and mobile cranes that lift steel coils, castings, machinery, or bulk bags of ore and cement. Hanging the scale between the hook and the load gives the weight during the lift itself, with no need to set the load down on a weighbridge or floor scale. For loads under 10 tonnes, the HY OCS crane scale range gives finer readings.
Built for harsh sites
The aluminium alloy housing resists impact and corrosion, and the scale operates from −10 °C to +40 °C. A 6 V 10 Ah rechargeable battery runs it for over 80 hours, with a battery-level display, auto shutdown and an overload alarm. Readings switch between kilograms and pounds.
Safety, calibration and quotation
Make sure the crane, hook, shackles and slings are all rated for at least 20 tonnes. The scale tolerates a 125% safe overload and 400% ultimate load, but that margin is protection, not working capacity. Each scale is calibrated before delivery (Scalestech is approved by Weights & Measures to verify and stamp scales), and our calibration team handles recalibration. Request a quote, or browse all crane and hanging scales.
Frequently asked questions
20,000 kg capacity, with over 80 hours of use from the 6 V 10 Ah rechargeable battery.
Yes. The aluminium alloy housing resists impact and corrosion, and the scale operates from −10 °C to +40 °C.
It has a 125% safe overload, a 400% ultimate load and an overload alarm.
Yes. Our calibration team services crane scales. Contact us to arrange recalibration.




