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Manitowoc’s new Model MLC300 utilizes Variable Position Counterweight™(VPC™) proprietary technology to “actively” engage all counterweight and eliminate the need for “passive” carbody weights. The design results in a dramatically reduced transport configuration and better center of gravity for reduced ground bearing pressures. The Model MLC300 is available in VPC™ and VPC-MAX™ configurations for additional capacity.
Crane Control System: The Crane Control System offers a user-friendly interface, two full graphic displays mounted horizontally for better visibility, a jog dial for easier data input and ergonomic joysticks.
Variable Position Counterweight™ (VPC™): The Manitowoc MLC300 features a counterweight system which automatically positions the crane’s counterweight as required to match lifting demands. Crane lifting capability is optimized by automatic positioning of the counterweight, eliminating the need for carbody counterweight. Additionally, counterweight boxes are designed to be common across multiple crane platforms and are utilized on Manitowoc Model MLC650 as well as future models.
VPC-MAX™: Capacity and boom and jib combination lengths can be increased through addition of the exclusive VPCMAX™ attachment. The VPC-MAX™ attachment, configured with 98.4 ft fixed mast counterweight beam and standard VPC™ components, increases the max load moment of the MLC300. The position of the VPC-MAX™ counterweight is automatically positioned based on lifted load, boom length or boom and jib length and load radius.
FACT™ Connectors: Manitowoc’s Fast Aligning Connection Technology (FACT™) automatically aligns crane components for fast, easy assembly
CraneSTAR is an exclusive and innovative crane asset management system that helps improve your profitability and reduce costs by remotely monitoring critical crane data. Visit www.cranestar.com for more information
|Cab||The Vision Cab™ is a fully enclosed and insulated galvannealed steel module mounted to the left front corner of the rotating bed. Module is equipped with power tilt, sliding door, large safety glass windows, front and roof windshield wipers, dome light, sun visor and shade, fire extinguisher, air conditioning, swing and travel alarms, and radio/CD player. Operator’s station swings over front of rotating bed and includes nylon protective window covers for transport.|
|Capacity||386 US tons
330 US tons VPC-MAX
|Displacement||720 cubic inch|
|Fuel Tank Capacity||255 Gallons|
|Control System||The Crane Control System offers a user-friendly interface, two full graphic displays mounted horizontally for better visibility, a jog dial for easier data input and ergonomic joysticks.|
|Hydraulic Capacity||145 Gallons|
|Hydraulic System||Efficient, independent, full power multi-functional control is achieved in all operating modes through a combination of open and closed loop system optimized by Manitowoc’s proprietary onboard Crane Control System. 145 gal hydraulic reservoir is equipped with sight gauge, breather, clean out access, 100 micron mesh internal strainers, and 40 micron inlet screens. Primary filtration system is equipped with 8 micron absolute filters.|
|Counterweight||The Variable Position Counterweight™ (VPC™) system, with only rotating bed counterweight, maintains optimum crane stability by automatically positioning crane counterweight based on boom length and load radius. No carbody counterweight is required.
The crane can be equipped with 386,200 lb of upperworks counterweight made up of a single piece counterweight tray and sixteen 22,000 lb counterweight boxes or with 474,400 lb of upperworks counterweight with twenty 22,000 lb counterweight boxes. Left and right side counterweights are interchangeable and common with the Model MLC650 counterweight.
|Drum||Basic machine is equipped with an independent main drum assembly and independent luffing/aux drum assembly mounted in the boom butt. Each drum is driven by a variable-displacement hydraulic motor through a planetary reduction. Drums are grooved for 28 mm wire rope. Main hoist has 36,760 lb linepull on all layers with a 27.5 in drum diameter; luffing/aux drum has 30,000 lb linepull on all layers with a 23.6 in drum diameter. Powered hoisting/ lowering operation with automatic spring applied, hydraulically released multi-disc brakes, and drum rotation indicators standard. Basic machine is equipped with a rigging winch mounted in the boom butt. Drum utilizes 8 mm wire rope with 2,250 lb max linepull capability.
Optional: auxiliary hoists – Rotating bed mounted, can be fitted with one or two auxiliary drums grooved for 28 mm wire rope, and both having 36,760 lb linepull on all layers. These two drums can be used independently or in tandem to suit a variety of lift applications.
Optional: freefall hoists – Rotating bed mounted, can be fitted with one or two freefall equipped drums grooved for 28 mm wire rope. Freefall function is controlled by wet disk brake manually applied by foot pedal with locking latch in operator’s cabin. Operator may select freefall or powered lowering mode using a selector switch in the cab.
|Swing||Rotating bed mounted independent swing is powered by a fixed displacement hydraulic motor coupled to an internal brake and planetary reduction engaging a 9 ft 10 in diameter triple row roller turntable bearing.|
|Swing Speed||2.0 RPM|
|Max Boom Length||393.7’|
|Max Jib Length||137.8’ (Fixed)
|Max Capacity||330 US tons|
|Fixed Jib on Main Boom||137.8’|