Manitowoc's MLC650 Crawler Completes Test with VPC-MAX Attachment
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March 18, 2015 - Manitowoc reports it has successfully completed maximum load testing the MLC650 crawler crane with the VPC-MAX attachment.
The VPC-MAX attachment increases the MLC650’s capacity to 770 tons, which is 55 tons more than its standard configuration. The VPC-MAX (variable position counterweight) attachment includes additional counterweight and a beam that automatically extends the counterweight beyond the rear of the crane based on lifted load, increasing its load moment. For the max load test, the crane was positioned to apply the maximum stresses through the structure, including the boom positioned over the corner of the crawler crane.
The VPC-MAX attachment provides capacities similar to wagon- or tray- mounted attachments, but requires fewer components and assembly steps, reducing setup time and transportation costs. Also, job sites will require less ground prep, resulting in additional savings, as customers do not have to buy, transport or install as much matting when compared with a traditional configuration.
Dustin Soerens, marketing manager for lattice-boom cranes at Manitowoc, said the testing went according to plan. “We attached hundreds of strain gauges to the MLC650 and picked a number of loads in the test yard to test its capacity with the VPC-MAX attachment,” he said. “The testing went very well with no surprises." He added that Manitowoc is on its way to releasing the crane to the global market.”
