BITUMEN PRESSURE DISTRIBUTOR

 1. What is a Truck-Mounted Bitumen Sprayer?

A Truck-Mounted Bitumen Sprayer is a self-contained unit fitted onto a truck chassis, designed to spray hot bitumen uniformly over the road surface before laying asphalt. It is primarily used for tack coating, prime coating, and surface dressing in road construction and maintenance projects.

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2. What is the typical capacity of a truck-mounted bitumen sprayer?

Capacities typically range between 4,000 to 10,000 liters, depending on project scale and customer requirement. Larger models are suitable for national highway projects, while smaller ones are ideal for urban or patch repair works.

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3. How is the bitumen heated inside the tank?

The tank is equipped with a diesel-fired automatic burner system. The tank is fully thermally insulated to minimize heat loss. A thermostatic control unit maintains the bitumen at the desired temperature (usually around 150–180°C), ensuring consistency and safety.

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4. How does the spraying mechanism work?

Bitumen is pumped through a high-pressure bitumen pump to the spray bar, which is pneumatically controlled and has adjustable nozzles. The spray bar width can typically be adjusted up to 4.5 meters or more, depending on the model.

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5. Is the spraying process automated?

Yes, most modern truck-mounted sprayers feature a fully automatic spray control system. Operators can adjust spray pressure, width, and flow rate through a digital or analog control panel, ensuring uniform and accurate application.

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6. What type of bitumen can be sprayed using this machine?

The sprayer can handle various grades of bitumen including VG-10, VG-30, VG-40, emulsions, and modified bitumen. Proper cleaning and flushing systems are provided to avoid blockages when switching between types.

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7. What are the advantages of a truck-mounted sprayer compared to a tractor-towed version?

• Fully integrated unit – no need for separate towing

• Higher mobility and maneuverability on highways

• Faster setup time

• Compact design, with better stability and roadworthiness

• Easier to manage as a single-operating machine

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8. How is the bitumen pump powered?

The bitumen pump is generally driven by a PTO (Power Take-Off) shaft from the truck engine or via a separate diesel engine. It is engineered to handle high-temperature materials with minimal maintenance.

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9. Is cleaning and maintenance easy?

Yes. Most units come with a diesel flushing system that allows cleaning of the bitumen lines and spray nozzles after use. Regular maintenance of the burner, pump, and valves ensures long-term performance.

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10. What safety features are included in the equipment?

• Thermostat-controlled heating to prevent overheating

• Overflow protection valve in the tank

• Insulated surfaces to protect operators from burns

• Emergency shut-off systems for burner and pump

• Visible temperature & pressure gauges for real-time monitoring