Single Girder Bridge Cranes |
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When headroom, capacity and spans are not an issue, a Single Girder Crane is your most economical crane choice. Single Girder Cranes are typically the most cost-efficient electric cranes to place into service. ProservCrane Group builds both top running and underhung cranes, with the former being the most popular. A top running crane has a bridge beam sitting on top of an end truck with an underhung hoist; whereas an underhung/running crane hangs from an end truck that rides under the runway beam, also with an underhung hoist.
One of the reasons we have grown into the company we are today is due to how efficient we are in manufacturing Single Girder Cranes. We offer single girders with capacities from 1 ton up to 20 tons with spans up to 60 ft. using wide flange girders; and up to 75 ft. using a box girder design. For 5 and 10 ton capacities with a 25 ft. lift and spans of up to 60 ft., we have the capability to offer a quick ship service which guarantees delivery within 3 weeks from the time your order is placed. For inquiries click here.
Single Girder Cranes up to Class "D"
General Information
- Up to 20 ton and 60' spans using wide flange girders
- Up to 20 ton and 120' spans using box girders
- Top running and underhung options
- Quick ship available for 5 and 10 ton with 25' lift
- CMAA Class "C" and "D" service
- Built to meet CMAA Specification #70, Revised 2004
- Electric, air and explosion proof application available
- Festooned push button standard
- Lowest impact on wheel load which saves on building material
End Truck
- Rotating or fixed axle
- The end truck frame consists of tubular steel
- Truck end plates serve as rail sweeps and shock absorbing bumpers
- Double flanged wheels with hardened treads are mounted on rotating axles made of forged steel
- Ball or roller bearings are used based on wheel loading
- Maximum rail size is dependent upon wheel diameter and capacity
- A4 dual drives as a standard
Hoists/Trolley
- Wire rope and chain hoists available
- Single and double reeved hoist available
- Single speed, 2-speed and variable speed available
- Mechanical load brake available upon request
- Upper/Lower geared limit switch is standard
Controls
- Adjustable variable frequency drives are a standard unless specified
- Motor thermal overload protection - reduces possible motor damage
- Quick stop - reduces possibility of crane collision
- UL recognized electric thermal overload
- Dynamic braking resistors
- Clearly marked wires at both ends
- NEMA 4/12 enclosure
- 2 year warranty on parts
Bridge
- Standard structural shape or fabricated box
- Polyurethane bumpers are standard
