Manitowoc VPC-MAX attachment passes max-load test

The capacity-boosting VPC-MAX attachment for the Manitowoc MLC650 crawler crane has successfully completed maximum-load testing

The VPC-MAX attachment boosts the MLC650’s maximum capacity to 700 tonnes, an increase of 50 tonnes.
The VPC-MAX attachment boosts the MLC650’s maximum capacity to 700 tonnes, an increase of 50 tonnes.

Manitowoc’s capacity-boosting VPC-MAX attachment has successfully completed maximum-load testing.

The attachment can be fitted to a Manitowoc MLC650 to increase the crawler crane’s maximum capacity from 650 tonnes to 700 tonnes.

The VPC-MAX is designed to automatically extend the counterweight beyond the rear of the MLC650, increasing the crawler’s load moment.

“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, “ explained Dustin Soerens, marketing manager for lattice-boom cranes at Manitowoc.

“The testing went very well with no surprises. No changes are needed on the crane, as it performed superbly. We’re well on our way to releasing this innovative crane to the global market,” he revealed.

For the max-load test, the MLC650 was positioned to apply maximum stress throughout its structure. To this end, the boom was positioned above the corner of the crawler crane. Even so, no difficulties were encountered.

The VPC-MAX delivers capacities similar to wagon- or tray-mounted attachments, but requires fewer components and assembly steps. This helps to minimise setup time, transportation costs, and preparatory measures at the job site, according to the attachment’s designers.

“The successful testing was a great moment for everyone at Manitowoc,” Soerens commented.

“We’re working very hard to release a crane that will define the next generation of lifting equipment,” he concluded.


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