30 yd/hr, Kubota WG-3800 85HP Gasoline Engine
Mayco LS300GK Concrete Pump

The small pump with Big Pump Performance

Filling a niche that has been neglected, the Mayco LS300GK Concrete Pump has the versatility to efficently place 2" line mixes (3/8" pea gravel, masonry grout, shotcrete), structural concrete containing up to 1.5" aggregate, as well as everything in-between. Equipped with 6" diameter concrete cylinders and utilizing a 24" stroke ensures that the LS300GK will smoothly pump even low slump concrete mix designs.

Mayco's balanced independent hydraulic circuit guarantees a smooth changeover throughout, reducing to a minimum the tiring pump surge and premature wear on placing components. The 'true reverse' feature allows for immediate reversal of the pump stroke at any point allowing you to avoid troublesome line blockages in both a timely and safe manner.

The powerful Kubota WG-3800 gasoline engine helps put meaningful working force behind the LS300G's 800 psi concrete delivery pressure so that you get true performance at distances rarely achieved by other concrete pumps in this class. The Mayco LS300GK Concrete Pump is the true value choice for contractors who need performance without breaking the bank.

  • Concrete piston face pressure of 800 PSI (55 Bar)
  • Concrete cylinder diameter is 6 inches (152 mm) with 24-inch stroke (609 mm)
  • Powered by a Kubota 85HP (63.3 kW) gasoline engine naturally aspirated
  • Designed for aggregate sized up to 1-1/2 inches (38 mm)
  • True Reverse allows stroke change during any point in the pumping cycle
  • Hard faced wear components for longer life 
  • Variable volume output (from the control panel) from 0-to-30 cubic yards (22.9 cubic meters) per hour
  • Ideal for use with shotcrete, masonry block fill, slabs, footings, basements, & compaction grouting 
  • Innovative DCP (Digital Control Panel) solid state electronic control box with full diagnostic & performance monitoring
  • Optional wireless radio remote has a range of 350 feet (106.6 meters)
  • Optional rear hydraulic outriggers
  • Optional air or electric vibrators for hopper screen

Also available as LS300GKWR (wireless radio remote pre-installed)

Unit Specifications
Hopper Height 43 in 1092 mm
Hopper Capacity 10 ft 0.283 L
Pump Outlet 5.0 in 127 mm
Concrete Cylinders 6x24 in 152x609 mm
Hydraulic Cylinders 3x24 in 76x610 mm
Hydraulic Oil Capacity 31.7 gal 119.9 L
Fuel Tank Capacity 23.7 gal 89.7 L
Brake Type Hydraulic Surge
Pumping Specifications
Pumping Rate
per Hour
0-30 yd 22.9 m
Max. Concrete Pressure 800 psi 55 bar
Max. Aggregate Size 1.5 in 38 mm
Note: These figures will vary due to concrete mix design, line size, and job site conditions.
Dimensions & Weights
Overall Length 157 in 4000.5 mm
Overall Width 67.0 in 1720 mm
Overall Height 72.5 in 1840 mm
Operating Weight 4385 lb 1944 kg
Notice: Features and equipment specifications are subject to change without notice.