Hydraulic Swing-Tube Concrete Pumps

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.

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LS300GK

30 yd/hr, Kubota WG-3800 85HP Gasoline Engine

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 500 feet (153 meters)
  • Optional rear hydraulic outriggers
  • Optional air or electric vibrators for hopper screen
Unit Specifications
Hopper Height 43 in 1092 mm
Hopper Capacity 10 ft 0.283 L
Pump Outlet 5.0 in 127 mm
Concrete Cylinders 6×24 in 152×609 mm
Hydraulic Cylinders 3×24 in 76×610 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 3855 lb 1745 kg

LS450

45 yd/hr, Hatz 4H50 74.5HP Turbo Diesel

The powerful Hatz 74.5 diesel engine helps put meaningful working force behind the LS450’s 1100psi concrete delivery pressure so that you get true performance at distances rarely achieved by other concrete pumps in this class. The Mayco LS450 Concrete Pump is the true value choice for contractors who need performance without breaking the bank.

  • Concrete piston face pressure of 1100 PSI (76 Bar)
  • Concrete cylinder diameter is 6 inches (152 mm) with 36-inch stroke (914 mm)
  • Powered by a 74.5 (55.5 kW) Hatz 4H50 turbo diesel
  • Designed for aggregate sized up to 1-1/2 inches (38 mm)
  • Hopper remixer/agitator standard
  • 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-45 cubic yards (34.4 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 500 feet (153 meters)
  • Optional rear hydraulic outriggers
  • Optional air or electric vibrators for hopper screen
Unit Specifications
Hopper Height 43 in 1092 mm
Hopper Capacity 10 ft 0.283 L
Pump Outlet 5.0 in 127 mm
Concrete Cylinders 6×36 in 152×914 mm
Hydraulic Cylinders 3×36 in 76×914 mm
Hydraulic Oil Capacity 50 gal 189.2 L
Fuel Tank Capacity 40 gal 151 L
Brake Type Hydraulic Surge
Pumping Specifications
Pumping Rate
per Hour
0-45 yd 0-34.4 m
Max. Concrete Pressure 1100 psi 76 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 172 in 4365 mm
Overall Width 67 in 1701 mm
Overall Height 54 in 1371 mm
Operating Weight 5115 lb 2338 kg