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wmm plant .pdf

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Wet Mix Macadam Plant

Wet Mix Macadam (WMM) is a relatively newer concept used for laying the base course, which is placed
right before the hot mix asphalt during road construction. The binding materials used for the base in case
of WMM are prepared in the plant and then brought to the site for overlaying and rolling. A standard
WMM plant comes with the following components :

Cold Aggregate Feeders
Vibrating screen
Conveyor with load cell
Pug mill mixer
Load out conveyor
Silo or Hopper
Water tank
Control Panel inside the cabin

The WMM plant offers the flexibility to supply it with additional cement. The plant is provided with
cement hopper and cement silo for pumping the extra cement directly into the pug mill. The motor that
comes equipped with screw conveyor of the cement hopper/silo is synchronized with the load cell and
the required quantity of cement can be added to the pug mill.


Aggregate feeders: The four-bin aggregate feeder of the WMM plant is built to store four
types of aggregates. Each of the bins is provided with a gate for manual adjustment and each bin
is provided with belts that are driven by variable speed motors to discharge the materials to
gathering conveyor.


Single Deck Vibrating Screen: The gathering conveyor belt passes through the vibrating
screen before delivering the aggregates to the charging conveyor belt. The vibrating screen filters
the over-sized aggregates.


Charging Conveyor: Once the aggregates are filtered with the help of the vibrating screens,
the charging conveyor delivers the aggregates to the pug mill mixer after the load cell attached
to the conveyor weighs the aggregates. It sends the material to the panel so that the water and
the cement flow can be synchronized.


The rugged structure of the pug mill consists of liner plates, arms, and tips. These are replaceable
components of the WMM plant, which are expected to be changed for better performance. The
mixing unit consists of two arms that are parallel to each other and are equipped with tips. The
material inside the pug mill is mixed well with the help of these arms and tips as it gets sprayed
when it comes in contact with water from the pipelines above.

5. The cement silo that comes in various capacities, adds the cement directly into the pug mill mixer.
Cement is the material that is used as a binding agent, is usually added in limited quantities with
the help of the screw conveyor with variable speed motor.


Control panel: The control panel placed inside the cabin, which is usually located to have a
complete view of the plant, provides total control of the machine with the help of a user-friendly

7. The load out conveyor is the one which transfers the mixture to the storage silo which in turn
pumps the material into the trucks.
Vibrantengineering’s Wet Mix Macadam Plants are sturdy, easy to operate, friendly work machines that
deliver high-quality WMM for our road construction.
Vibrant Construction Equipment Pvt. Ltd. is a rapidly growing Construction Equipment Manufacturing
Company based in Hyderabad, India. We offer a wide range of road construction equipment that helps in
building roads which are safe, durable and economical. We provide asphalt batch mix plant, asphalt drum
mix plant, wmm plant, bitumen sprayer.

Contact Us
Sy. No 279, Plot No 1, Apuroopa Colony,
Jeedimetla, Ranga Reddy Dist,
Hyderabad – 500055, Telangana.

+91- 9100779821


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