Speedcrafts Bitumen Mobile Hot Mix Plant are extremely compact and entirely self-contained bitumen and aggregate mixing plants, trailer mounted on 4 nos. pneumatic wheels with drawbar and turntable to ensure easy towing. All controls are within easy reach of the operator.
Easy accessibility to all parts and lubricating points for regular and
quick maintenance has been given utmost importance in design. All materials
used are of correct and specified grades and are properly tested.
Type & Model
'Speedcrafts' Bitumen Mobile Hot Mix Plant, Model SBM-10, capacity 6/10 mt.
per hour, generally conforming to IS:5890.
Powered by Simpson S4(I) / Kirloskar RB-33 water cooled diesel engine
developing 41.5/37.5 bhp @ 1500 rpm with 12 V electric starting arrangement.
The unit is fitted with a power take-off clutch and reduction gear box.
A bucket elevator is provided, which discharges aggregate into the drying
cylinder through the feeding ring.
The drying cylinder is 2 mtrs. in length and of 0.70 mtrs. diameter and is
fitted with replaceable lifting flights. It discharges heated aggregate into
the storage ring. It is supported on two roller tracks running on 4 nos.
guide rollers and is driven by chain and sprocket wheel.
A single burner, having approximate fuel consumption of 28 ltrs./hr. is
fitted to the discharge end of the drying cylinder. The fuel consumption
depends on the condition of the aggregate. A fuel pump is provided for
feeding fuel and the air is supplied by means of an air blower.
It is driven by the engine through a v-belt and is of suitable capacity for
the burners provided.
The storage ring is fixed to the discharge end of the drying cylinder and
is fitted with lifting buckets which discharge the hot aggregate into the
The batching chute is suitably designed and has a fixed volume. The
discharge of hot aggregate from chute to paddle mixer is by means of a lever
which carries out two operations simultaneously- it opens the radial door
for discharging the aggregate into the paddle mixer and also closes a
deflector plate at the top of the chute to prevent any material being
discharged into the chute while the radial door is open. A thermometer is
supplied to register the temperature of the stone in the chute.
A wire rope hoist is provided with lifting frame for easy and convenient
loading of bitumen from barrels into the boiler.
The bitumen boiler is of adequate capacity and is provided with a burner
and suitable heating arrangement to prevent the bitumen from catching fire.
Air is supplied from the blower. Molten bitumen is lifted by means of a
bitumen pump through a pipeline into the bitumen bucket. Approximate fuel
consumption of the bitumen burner is 11 ltrs./hr.
Bitumen Feed Pump
A bitumen pump is provided with the bitumen boiler. It is driven by chain
and sprocket from the line shaft.
A calibrated bucket is provided in which the molten bitumen is collected
for discharge, as required, into the pugmill. The quantity of bitumen can be
metered through a 3-way cock connection.
The aggregate and bitumen are mixed in a separate paddle mixer type drum,
fitted with two paddle shafts mounted with arms and tips which rotate in
opposite directions. The shafts are gear driven and mounted on lubricated
gunmetal bushes. The paddle tips are coated with special hard facing alloy
to give them longer life in operation and are also replaceable. This
arrangement provides positive mixing and gives a homogenous mix. The
contents are discharged through a door at the bottom which is operated by a
A chimney is provided to draw out the hot gases. A sliding door is also
fitted which collects the fine dust in the chimney box. This dust may be fed
back into the feeder. To facilitate transportation, the chimney can be
The whole unit is mounted on a strong chassis of welded and bolted
construction with rolled and folded steel sections and fitted with 4 nos.
pneumatic tyres. Four strong mechanical parking jacks are fitted to the
Insulated bitumen boiler, overrun and parking brakes.