03 · Concrete Equipment

Concrete Mixer

Also called Drum mixer · Barrel mixer · Cement mixer

A rotating-drum mixer for batching concrete, mortar and other construction mixes on site.

Petrol engine

Sizes & models we rent

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9 cu ft petrolTowable drum mixer 9 cu ft electricFor indoor and enclosed pours

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Concrete Mixer · 9 cu ft petrol

Towable drum mixer

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Overview

A drum mixer, also known as a barrel mixer, mixes large quantities of concrete or cement. The drum rotates on its axis, and blades or fins inside mix the concrete as it turns.

Its big advantage is efficiently mixing large quantities. They're also simple to run and need less labour than other mixer types.

They can mix concrete, mortar or other construction materials, so they suit both small and large projects.

Catalogue specifications · 9 cu ft petrol

Best uses

Footings, post holes and pads
Mortar for block and brick work
Small-to-medium pours where a truck isn't practical
Stucco and render batches

Troubleshooting

Find a symptom

Drum turns slowly or stalls

Checks to try, in order

The drum is probably overloaded. Tip out some material and mix a smaller batch.
Check the drive belt for slipping.

Reference draft — always follow the manufacturer’s manual.

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Drum won't tip or won't lock in position

Checks to try, in order

Release the tilt lock fully before turning the tilt wheel or handle.
Clear any concrete build-up around the lock mechanism.

Reference draft — always follow the manufacturer’s manual.

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Engine won't startShared · Petrol engine

Likely causes

Fuel valve or switch off
Stale fuel
Low oil sensor
Choke position
Spark plug cap loose

Checks to try, in order

Turn the fuel valve ON and the engine switch to ON.
Cold engine: close the choke. Warm engine: leave the choke open.
Check there is fresh petrol in the tank — stale or water-contaminated fuel is the most common cause.
Check the engine oil. Many engines have a low-oil shutdown that stops them starting when oil is low or the machine is on a slope — top up and set the machine on level ground.
Make sure the spark plug cap is pushed fully onto the plug.
Pull the starter rope with a smooth, firm pull — don't let it snap back.

If the starter rope is locked or unusually hard to pull, stop — don't force it. Tag the unit and return it to the workshop.

Reference draft — always follow the manufacturer’s manual.

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Starts, then stalls or runs roughShared · Petrol engine

Likely causes

Choke left on
Blocked air filter
Low fuel
Low-oil shutdown

Checks to try, in order

Open the choke gradually once the engine has warmed up.
Check the fuel level and that the fuel cap vent isn't blocked.
Check the air filter — a dusty filter chokes the engine. Tap it out or swap it.
Check the oil level again; the low-oil sensor can cut the engine on uneven ground.

Reference draft — always follow the manufacturer’s manual.

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Smell of fuel or a visible leakShared · Petrol engine

Checks to try, in order

Switch the engine off immediately and move away any ignition sources.
Turn the fuel valve OFF.
Check the fuel cap is seated and look for a wet fuel line or carburettor bowl.

Don't run a machine that is leaking fuel. Tag it out and report it.

Reference draft — always follow the manufacturer’s manual.

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Safety

Never put hands or a shovel into the drum while it's turning.
Wet cement burns skin — wear gloves, eye protection and long sleeves.

For petrol engine

Refuel only with the engine off and cool. No smoking or open flames nearby.
Exhaust contains carbon monoxide — never run it indoors, in trenches or in enclosed spaces without ventilation.
Wear hearing protection, safety glasses and safety boots.