Blastcrete Equipment Company’s RMX-5000 mixer/pump, one of five mixer/pumps in Blastcrete’s lineup for refractory, shotcrete and concrete repair, is user-friendly, safe and rugged enough to handle demanding installations. The mixer/pump is available with either a spiral mixer or a paddle mixer with a planetary gearbox. The spiral mixer is designed for conventional shotcrete in applications such as bridge repair projects. The paddle mixer provides the torque necessary for more demanding applications such as refractory, where materials are much more difficult to mix, according to the manufacturer.
With its 2,200-psi piston pump, the RMX-5000 produces up to 5 cu. yds. (3.8 cu m) per hour and can achieve vertical pumping distances up to 450 ft. (137 m). An optional automatic lubrication system greases wear components hourly, as is necessary during operation. It also features a 1,000-lb. (454 kg) mixer capacity and a 1,200-lb. (544 kg) hopper capacity.
The RMX-5000 is available with a Kubota V3600 66-hp (49 kW) water-cooled diesel engine or a 50-hp (37 kW) electric motor. Blastcrete positions the engine safely away from the mixer and receiving hopper to prevent thermal transfer of heat to materials, which can accelerate setting. The placement of the engine also prevents airborne fiber from entering and clogging the air intake on the engine.
Blastcrete recommends thorough cleaning after each use to prevent material buildup and hardening, as well as possible damage to the unit.