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David Dolph – Service Supervisor and Crane Operator Trainer
As a trainer of crane operators, I have encountered few crane operators who talk about or admit to plugging cranes. And in recent years, the practice has become less of a crane repair and safety issue, as the bridges and trolleys of many new cranes are equipped with inverter controls. These controls lessen the risk of load swing if an operator were to plug – that is, reverse the direction of a trolley or bridge to create torque that decelerates the trolley.
A limit switch is a critical component of overhead crane safety. Limit switches are electromechanical devices that regulate everything from household appliances to industrial machinery. For an overhead crane, they provide solid, established points of reference for maintaining efficiency, reliability and safety standards.
Siemens Transformer (Wuhan) Co., Ltd. [herin after “Siemens Transformer Wuhan] is invested by Siemens (China) Co., Ltd., a wholly-owned subsidiary of Siemens Power Transmission and Distribution Group. The facility began production at the end of 2008, mainly specializing in the design and manufacturing of power transformers and reactors as well as the business of marketing development, sales and service.
Alaskan Copper & Brass Co. was moving a large part of its operation from Seattle and Renton to a facility in Kent, Washington. The company needed new lifting equipment and also wanted to relocate some older cranes at the Rention facility, not purchased from Konecranes.
Ambridge Regional Center offers in excess of 1.2 million square footage of industrial, commercial and office space for lease at rates extremely competitive to the market.
Wagstaff Inc. is a world-leader in manufacturing equipment and providing services for the aluminum direct chill casting process.
Union Pacific Railroad (UPRR) helps link production and consumption points in the U.S., and across the world, with a network to deliver the energy, food, raw materials, durable and consumer goods to support the nation’s growth.