QLZ Road Repairing Asphalt Plant

Henan Shengmao Machinery Co., Ltd. manufactures the QLZ Series Road Repairing & Asphalt Recycling Mobile Plants, featuring two standard configurations:

QLZ-3: 2−3 TPH (Batch capacity: 1,000 kg)

QLZ-6: 4−6 TPH (Batch capacity:2,000 kg)

1.Key Working Principle & Characteristics:

1). 100% On-Site Thermal Recycling (RAP Re-Heating):

Milled or excavated old pavement chunks (Reclaimed Asphalt Pavement, RAP) are loaded directly into the machine's thermal heating drum at the repair site.

A high-efficiency burner heats and softens the reclaimed material to 120∘C−160∘C in 15 to 20 minutes, rejuvenating the aged bitumen without scorching or burning off the binder.

2). Dual Capability (Recycled + Fresh Hot Mix):

In addition to 100% RAP recycling, the unit can produce fresh hot mix asphalt on-site by blending virgin aggregates with fresh liquid bitumen or asphalt rejuvenators.

3). Ultra-Compact Towable Mobility:

Built on a single-axle or tandem-axle wheeled trailer chassis weighing just 3 to 5 tons, it can be hitched to a light-duty commercial dump truck or pickup truck and rapidly deployed across city streets or highways.

4). Eliminating Plant-to-Site Transit Cooling & Waste:

Eliminates the high minimum order quantities (MOQs), expensive trucking logistics, and temperature loss associated with buying small batches from commercial stationary asphalt plants.

2. Key System Components & Engineering Highlights:

1). Thermal Rotary Recycling Drum:

Heavy-duty heat-resistant steel drum with specialized lifting flights and anti-coking blades.

Designed to heat and break down pavement lumps (≤2 kg≤2 kg) uniformly without direct flame impingement on the asphalt binder, preventing smoke generation and binder aging.

2). Fast thermal recycling cycle: heats a full batch of milled asphalt to 120∘C−160∘C in only 15−20 minutes.

3). High-Efficiency Diesel/Gas Burner System:

Automated proportional heating burner with electronic spark ignition and flame safety interlocks.

Provides concentrated thermal air circulation for rapid aggregate softening and temperature control.

4). Onboard Liquid Bitumen & Rejuvenator Metering:

Integrated bitumen/emulsion heating chamber and metered spray nozzle to add calculated amounts of fresh bitumen or asphalt rejuvenator into aged RAP mixtures.

5). Self-Contained Diesel Engine Power Unit:

Equipped with an onboard industrial diesel engine (approx. 12.7 kW/20 HP) and hydraulic drive system, making the entire unit completely self-sufficient and independent of external electrical grids or stationary generators.

6). Hydraulic Skip Hoist Loading & Chute Discharge:

Ground-level hydraulic loading hopper allows easy manual or mini-skid-steer loading of broken asphalt pieces and aggregates.

Reverse drum rotation or rear hydraulic chute directly discharges fresh hot mix onto the road patch or into wheelbarrows.

7). Compact Road-Towable Trailer Chassis:

Heavy-duty steel chassis with road axle, pneumatic tires, leaf springs, trailer drawbar, safety chains, and traffic warning lights.

Lightweight total mass (3 to 5 tons) allows fast towing behind standard municipal maintenance utility trucks.

8). Low-Emission Environmental Dust & Smoke Hood:

Integrated cyclone suction hood and exhaust gas recirculation system to minimize particulate emissions and hydrocarbon odors during urban street repairs.

QLZ series of mobile asphalt mixing plant

Capacity available:

QLZ series of mobile asphalt mixing plant: 2t/h to 6t/h

Control system language available: English.