Construction Machinery

The 350 mm petrol road cutter cuts to a maximum depth of 80 mm using a 350 mm blade. It is driven by a 6.5 hp petrol engine, travels at 5 to 8 m per minute, weighs 65 kg, measures 850 × 450 × 750 mm and carries a 6.5 litre water tank for dust suppression. The blade is supplied separately from the machine.

The drum turns one way to mix and the opposite way to discharge, so the operator controls the pour without tipping the drum by hand. The 350 litre model is specified with a diesel engine and a hydraulic skip, which lifts the batch to the drum. It is the machine for a site that pours small batches regularly rather than receiving ready-mix.

The open-frame version is rated at about 90 dB and the silent canopy version at about 70 dB. That difference is the reason the silent set weighs 162 kg against 117 kg for the open version: the canopy is a sound-attenuated enclosure, not a cosmetic cover.

It is rated at 9.5 kW continuous and 11 kW maximum, with 220 V and 380 V outputs at 43 A and 15 A respectively. It runs a 531 cc single-cylinder air-cooled diesel engine with direct injection, uses about 1.5 litres of fuel per hour and carries a 16 litre tank in the silent version or 12 litres in the open version.

It removes the air pockets that leave honeycombing in a wall or a column face. The electric unit uses a 50 mm poker on a 4 m hose from a 2.2 kW motor; the petrol unit uses a 196 cc, 4-stroke engine rated at 3.8 kW and can take a hose of 4 to 10 m, with a 3.6 litre fuel tank and 0.6 litre oil sump.