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Single Girder
Single Girder Bridge Cranes
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.

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.

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

 

Contact ProservCrane Group today so we can help you design the best overhead crane for your business.

 

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