COMPARISON & DECISION SUPPORT

Crane technical tables and selection matrix.

Comparative technical tables for lifting-system pre-selection, RFQ data and safe fault reporting.

Lifting-System Pre-Selection Table

System	Typical use	Decision inputs
Electric chain hoist	Compact controlled lifting for assembly and maintenance	Capacity, lift, suspension/trolley, cycles, speed
Electric wire-rope hoist	Higher capacity, lift height and duty	Capacity, duty, reeving, speed, service access
Single-girder overhead crane	Economic bridge solution for suitable span and capacity	Span, runway level, structural load, headroom
Double-girder overhead crane	Higher capacity, wider span and demanding duty	Span, capacity, trolley layout, maintenance platform
Gantry crane	Outdoor or independent runway handling	Rails, foundations, wind, cantilever, power feed
Jib crane	Local handling at a defined workstation	Column/wall, arm length, rotation, capacity

Input	Why it matters	Example
Maximum gross load	Capacity and attachment selection	Load + slings + lifting beam
Lift height	Rope/chain and body arrangement	Lower hook level to upper level
Span and travel	Bridge, runway and power feed	Column grids and clear working area
Cycles per hour and shifts	Motor, brake and duty review	12 lifts/hour, 2 shifts
Environment	Protection, coating and component choice	Dust, humidity, temperature, outdoor
Power	Electrical and control design	Voltage, frequency, phases
Controls	Operation and safety	Pendant, radio, cabin, automation
Delivery scope	Quotation boundary	Manufacture, shipping, installation, commissioning

Symptom	Information to share	Safe response
No operation	Power, emergency stop, error code, labels	Stop use; do not open panels without authorisation
Only one direction works	Failed direction, pendant, contactor/display indication	Do not repeat tests under load
Brake will not release or load creeps	Load, noise, odour, brake-behaviour video	Clear the area and isolate the system
Runway noise or vibration	Position, wheel/runway view, loaded/unloaded difference	Stop use if skewing is suspected
Irregular chain/rope travel	Spooling, guide, hook and drum images	Do not hand-correct or intervene under load

Final capacity, structure, runway, foundations, electrical design, duty, safety and regulatory compliance are verified per project.

LET’S DISCUSS YOUR PROJECT