LEMAC Corporation

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C&D Recycling

Concrete crusher attachment

Ideal for processing concrete and similar material, Lemac concrete crusher attachments will not only crush concrete but will also remove and cut rebar. This double act creates two recyclable products without difficulty. Replaceable teeth and rebar cutters are standard, and units attach in the same place as a mounted bucket, utilizing the excavator’s bucket cylinder. The offset pivot maximizes crushing force, which allows for over-sizing of the main pivot pin, and reduces any stress imposed on the stick. Plus, the entire jaw structure is manufactured from quenched and tempered alloy steel (130,000-psi minimum yield, 360-440 BHN) and the main pivot features heat-treated pin, bearings, seals and o-rings.

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Stump shear in mechanical and hydraulic configurations

Stump shear in mechanical and hydraulic configurations

Ideal as a downsizing tool for use with grinders and other wood processing machines, the Lemac Stump Shear is now available in both mechanical and hydraulic configurations. The mechanical model requires no additional hydraulics, and pins on in place of a bucket. It uses an excavator’s bucket cylinder to power the single blade jaw through the tree stump. The hydraulic version has a greater opening and generates quick, extra powerful cycle times. The shear’s outer jaw has two ripper spikes which have oversized replaceable ESCO teeth. These prongs are used to pry the stump from the ground while the inner jaw, equipped with a replaceable blade, shears the stump. Various models of Lemac Stump Shear fit machines from 24,700 to 104,000 pounds (11 to 47 metric tons), blade lengths are from 29 to 40 inches (737 mm to 1,016 mm) and maximum openings are from approximately 44 inches to 82 inches (1,118 mm to 2,083 mm).

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Concrete crusher also removes and cuts rebar

Concrete crusher also removes and cuts rebar

The Lemac Concrete Crusher is a rugged attachment that not only crushes concrete but also removes and cuts rebar. This double act creates two recyclable products without difficulty. As standard, Lemac includes replaceable teeth and rebar cutters allowing easy and affordable maintenance, and hydraulics are not a worry, as these units attach in the same place as the previously mounted bucket, utilizing the excavator’s bucket cylinder. The offset pivot maximizes crushing force, which allows for over-sizing of the main pivot pin and reduces any stress imposed on the stick. The entire jaw structure on these units is manufactured from quenched and tempered alloy steel 130,000 psi minimum yield, 360-440 BHN. The main pivot features heat-treated pin, bearings, seals and o-rings.

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Demolition processor

Demolition processor

The Lemac Demolition Processor combines a powerful twin cylinder design with a unique jaw configuration to deliver both quick demolition and efficient processing of reinforced concrete structures. The exclusive single piercing tooth on one jaw concentrates the crushing force of the processor into one intense point, enabling initial breakage of sections which would otherwise be impossible.

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Demolition processor

Demolition processor

The Lemac Demolition Processor combines a powerful twin cylinder design with a unique jaw configuration to deliver both quick demolition and efficient processing of reinforced concrete structures. The exclusive single piercing tooth on one jaw concentrates the crushing force of the processor into one intense point, enabling initial breakage of sections which would otherwise be impossible.

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