Industry:
Manufacturing

Location:
Coraopolis, PA

Duty Cycle:
CMAA Class C

Project Description:

Two (2) new 15-ton capacity, top-running, single girder bridge cranes equipped with a Shaw-Box electric wire rope hoist. Designed for indoor service within a 41°F to 104°F temperature range, the system is built in accordance with current industry standards including CMAA, ANSI/ASME, OSHA, and NEC for Class ‘C’ duty and ASME H4 hoist service.

Each crane spans over 53′ and provides a maximum lift height of 33′, engineered to deliver reliable, safe, and precise handling for daily operations.

Application Highlights:
The crane is operated primarily by radio control with two hand-held transmitters and includes a full-function ergonomic pendant as backup. Variable frequency control on the bridge provides smooth acceleration and deceleration, while DC disc brakes and limit protection ensure safe, consistent performance.

Technical Specifications:

  • Capacity: 15 tons (30,000 lbs.)
  • Span: 55′ (#36050), 53′ (#36051)
  • Lift Height: 33′-0″ available
  • CMAA Class: ‘C’ (ASME H4 Hoist)
  • Voltage: 460V, 3 Phase, 60 Hz (#36050), 240 V-3 Ph-60 Hz. (#36051)
  • Service: Indoors, 41°F – 104°F

Mechanical Features:

  • Bridge: 100 FPM, variable frequency control

  • Trolley: 80/20 FPM, 2-speed control

  • Hoist: 25/3.9 FPM, 2-speed control

  • Reeving: 4-part single, 12.5 mm wire rope

  • Bumpers: Energy-absorbing bridge and trolley bumpers

  • Hook: Manual 360° swivel hook with safety latch

Electrical & Safety Features:

  • IP-55 rated bridge and trolley control enclosures

  • Manual, fused, and lockable disconnect switch

  • Mainline contactor with E-stop and thermal overload protection

  • Flat cable festoon system on C-track
  • Upper block operated control circuit limit switch

  • Overload limit device

  • Operator-controlled electro-mechanical warning horn

  • Radio control with (2) hand-held transmitters featuring two-step motion pushbuttons, On/Horn, and Off/E-Stop

  • Ergonomic 8-button backup pendant control with two-step motion buttons on a C-track festoon

Installation & Service:

  • Install crane onto the existing runway and complete all structural, mechanical, and electrical connections

  • Start-up and commission the crane; perform operational adjustments and safety verifications

  • Conduct load testing with certified documentation provided upon completion

  • Deliver final inspection report confirming compliance and performance