Reach Truck Load Capacity Explained
Learn how rated capacity, residual capacity, load centre, lift height and attachments determine whether a reach truck can safely handle a load.
Rated capacity and residual capacity
Rated capacity is commonly stated under defined conditions. Residual capacity is what remains at a particular height, load centre and configuration. High lifts and extended load centres generally reduce the available capacity.
Understanding load centre
The load centre is the horizontal distance from the fork face to the load’s centre of gravity. A long, uneven or offset load can move the centre farther forward even when total weight appears acceptable.
Increasing the load centre increases overturning moment and can exceed the truck’s safe limit.
Reading the capacity plate
Confirm truck identity, mast, attachment, maximum height, load centre and corresponding capacity. If the plate is missing, damaged or does not match the configuration, do not rely on memory or another truck’s plate.
Unknown or unstable loads
Use verified documentation, calibrated weighing systems or an approved process to establish weight. Do not “test lift” an unknown load as a substitute for planning.
Check packaging, pallet condition and load distribution before insertion of forks.
Attachments and modifications
Fork extensions, clamps, non-standard forks and other attachments can change weight, load centre and visibility. They require manufacturer or competent engineering approval and an updated rating where applicable.
Frequently asked questions
Can I lift a 1,500 kg load on a 1,500 kg truck?
Only if the capacity plate confirms that capacity at the actual height, load centre and configuration.
Does keeping the load close help?
Yes. Keeping the centre of gravity closer generally improves stability, but the capacity plate remains decisive.
Can operators calculate a new limit themselves?
No. Capacity changes require manufacturer or competent technical determination, not informal calculation.
Related reach truck guides
Official Singapore references
These sources support the general WSH duties and forklift-safety principles discussed in this guide.
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