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REED A Series Rockmaster Concrete Pumps

Premium pump in its class, built with the same leading edge engineering as our top-of-the line pumps. The Rockmaster delivers outstanding long term value for the money by virtue of its reliability, toughness, ease of use, durability and pumping power.

The Rockmaster is powered by a 82 hp (61 kW) continuous duty diesel engine. This best-in-class power is the basis for the pump’s versatility. It can be used to pump rough concrete mixes as well as shotcrete. (A40HP is recommended for higher pressure applications).

The Rockmaster features an “Open-Loop” hydraulic system, a large fuel tank, and REED’s Can- Bus Solid State Cycle Control.


  • Big Rock
  • Grout
  • Pea Gravel
  • Shotcrete
  • Slope Stabilization
  • Ponds & Spas
  • Slabs
  • Rockscaping
  • Mines
  • Backfill
  • Foundations
  • Pressure Grouting

Standard Features

  • Powerful 82 hp (61 kW) diesel engine (continuous duty)
  • Variable Displacement Piston Hydraulic Pump (A30HP and A40HP models)
  • Gear Pump (A30 model)
  • Heavy-duty “S” Valve
  • Lightweight
  • REED Can-Bus Solid State Electric System
  • Chromed concrete cylinders for long service life
  • Easy to change Piston Cups
  • High-strength frame design
  • Only 4 hydraulic hose groups (8 hoses total)
  • Adjustable tongue jack
  • Fuel Filters (Pre-filter with water separator and spin off primary filter)

Additional Features

  • Reversibility at any point in the stroke
  • Variable volume output
  • Weatherproof NEMA 4 control panel
  • High capacity hydraulic oil cooler
  • Highway rated axle
  • Electric brakes
  • Fenders and flush-mounted tail-lights
  • Adjustable pintle hitch
  • Hopper grate
  • Safety emergency stop function
  • Steel pistons with urethane cups
  • Hard chromed concrete cylinders
  • Hour meter
  • Splined shaft on “S” Valve
  • Dual hydraulic circuit
  • Highest standard horsepower and concrete pressure in class

Optional Features

  • Radio remote control
  • 7-function hardwire remote control (On/Off/Reverse/E-stop/Hornreset/ RPM control/Stroke Change)
  • Hopper Agitator (A40HP only)
  • Chrome wheels
  • Hydraulic Surge Brakes
  • 2 5/16” Ball Hitch
  • Screw-type Outriggers (manual, adjustable)
  • U.S. Tool Kit (for International Customers)
  • Emergency Stroke Kit

Please refer to the TDS for more information.

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