G. W. Becker has installed two new top-running single girder cranes, each with a 15t capacity at a manufacturing site in Coraopolis, Pennsylvania.
The cranes, spanning over 53ft with a maximum lift height of 33ft, will operate in the facility’s welding and cutting assembly bays, according to the US-based machinery manufacturing company.
G.W. Becker supplied the cranes and equipped each with a Shaw-Box electric wire rope hoist.
The systems were built to comply with CMAA Class ‘C’ and ASME H4 hoist service standards for indoor operation within a temperature range of 41°F to 104°F.
The company performed installation on existing runway structures, handled commissioning and start-up procedures, conducted load testing, and provided certified documentation after completion.
Each crane uses variable frequency drives for controlled bridge movement, allowing smooth acceleration and deceleration.
Safety measures include DC disc brakes, limit protection, energy-absorbing bumpers on both bridge and trolley, and overload limit devices.
Both systems are designed to support daily material handling using radio control with two hand-held transmitters and feature an ergonomic pendant control as a secondary option.
Electrical enclosures for the bridges and trolleys are rated IP-55 and equipped with fused, lockable disconnect switches.
Each crane uses a mainline contactor with emergency stop and thermal overload protection features.
Additional safety mechanisms include operator-controlled electro-mechanical warning horns and upper block-operated control circuit limit switches.
The mechanical configuration offers variable frequency control for the bridge at 100 feet per minute, two-speed controls for both trolley (80/20 FPM) and hoist (25/3.9 FPM), along with a four-part single reeving system of 12.5 mm wire rope.
A manual 360-degree swivel hook with safety latch is also included.
G.W. Becker established in 1980, serves as a provider of overhead crane systems throughout North America.
