The D3522 Attachment is reportedly the only hot epoxy pump on the market that can be powered by an existing hydraulic power source. Product engineers describe 
it as lighter, more versatile and affordable than hot epoxy pumps and mixer/pump combinations with built-in power supplies, especially since skid steers and other equipment with auxiliary hydraulic hookups can power the unit.
The D3522 features a hydraulic squeeze (peristaltic) pump equipped with two rollers that rotate clockwise and squeeze a 2-in. rubber pumping tube. The rotation generates suction from the receiving hopper and pushes the material through the pump and out the discharge into the delivery hose. The epoxy materials do not come in contact with the moving parts of the squeeze pump, unlike a rotor stator or piston-style pump. The D3522’s primary wear part, the rubber pumping tube, can be replaced in 20 minutes or less.
The device can pump hot epoxy or cementitious grouts at variable speeds up to 6 yd./hour and deliver up to 400 psi of pumping pressure. Those capabilities, coupled with the unit’s light weight, make it easy to transport and versatile. Contractors can use the pump for a wide variety of applications, such as grouting to secure heavy industrial equipment and pumping fiberglass jackets for pier rehabilitation and stabilization. The D3522 Attachment also can be used for spraying plaster and small wet-shotcrete applications. — Blastcrete Equipment, 800/235-4867; www.blastcrete.com