Industry:
Metals Processing

Location:
West Virginia

Duty Cycle:
CMAA Class C

Project Description:

One (1) new 5-ton capacity, top-running, single girder bridge crane designed for indoor service in a 60°F to 120°F ambient temperature range. Built to CMAA Class ‘C’ moderate service standards, this system delivers reliable and efficient performance for daily material handling applications. This project is part of a 12-crane order placed by a long-time customer, continuing a trusted partnership built on reliable performance and service.

The crane spans 39′ and provides a 20′ lift height, featuring precise pendant control operation and advanced drive technology for smooth and accurate movement.

Application Highlights:
Equipped with variable frequency control on the bridge and trolley and a flux vector drive on the hoist, this system ensures precise speed regulation and consistent load handling. AC disc brakes provide dependable stopping performance, while built-in safety features, including a siren warning system, enhance operational awareness and protection.

Technical Specifications:

  • Capacity: 5 tons 
  • Span: 39′
  • Lift Height: 20′
  • CMAA Class: ‘C’ 
  • Voltage: 460V, 3 Phase, 60 Hz
  • Service: Indoors, 60°F – 120°F

Mechanical Features:

  • Bridge: 100 FPM, variable frequency control, AC disc brakes
  • Trolley: 80 FPM, variable frequency control, AC disc brakes
  • Hoist: 20 FPM, 2-speed control, AC disc brakes
  • Reeving: 4-part single reeved, IWRC, EIPS wire rope
  • End Trucks: Fabricated from heavy-wall structural tube for durability and stability
  • Bumpers: Energy-absorbing bridge and trolley bumpers
  • Hook: Manual 360° swivel hook with safety latch

Electrical & Safety Features:

  • Main crane disconnect switch with lockable circuit breaker

  • Controls housed in NEMA 12 air-conditioned enclosures

  • C-track festoon system for conductor arrangement

  • Operator-controlled audible warning device with siren for crane start-up

  • Overload and limit protection for safe operation

  • AC braking on all motion drives

  • Pendant-controlled with ergonomic two-step motion buttons

Installation & Service:

  • Complete installation and runway electrification

  • Perform all structural, mechanical, and electrical connections

  • Start-up and commissioning of one crane, including system calibration and performance verification

  • Provide certified load testing and final inspection documentation upon completion