Every overhead crane Sorian supplies is engineered for your bay, your capacity, and your operating cycle. We calculate runway beam loads, specify the correct duty classification, and supply the full compliance documentation.
Single girder EOT bridge crane
The standard overhead crane for light to medium duty applications. A single box girder or I-beam bridge travels on runway rails. Lower headroom requirement than double girder. Ideal for capacities from 500 kg to 6 t.
Suitable for: manufacturing, fabrication, mechanical workshops, warehouses, utility facilities.
Double girder EOT bridge crane
Two parallel bridge girders supporting a crab and hoist unit. Greater span capacity, lower headroom between top of bridge and bottom of hoist, and suitable for higher duty cycles. Typically used for larger spans and heavier capacities.
Suitable for: steel fabrication, heavy manufacturing, process plants, marine applications.
Technical specifications
- Capacity: up to 6 t (our standard range — above 6 t, contact us)
- Span: 2 m to 28 m depending on configuration
- Duty class: M3 to M6 as required for your operating cycle
- Controls: pendant pushbutton or radio remote control
- Runway: new runway design and supply, or assessment and use of existing structure
- Compliance: compliant to Australian and ISO standards. WorkSafe design registration available. Full documentation.
Why duty class matters
The single biggest spec error we see on existing overhead cranes is duty class set too low for the actual operating cycle. M3 is occasional use; M6 is heavy continuous. A crane spec'd at M4 but operating at M6 cycles will burn through brakes, contactors, gearboxes and wire ropes years ahead of its rated life — and the wear isn't covered under a warranty written against the M4 spec.
Sorian sets duty class against your actual work cycle, not against a catalogue default. That's how a crane lasts the design life it was sold against.
Example applications
- Food processing facility — 2 t single girder, 18 m span, stainless accessories, M5 duty.
- Structural steel fabrication shop — 6 t double girder, 22 m span, 30 m runway.
- Industrial maintenance facility — 3.2 t single girder, 12 m span, radio remote control.
- Government water authority workshop — 2 × 2.5 t single girder cranes on shared runway.