ESP-3000 Spray injection pothole patcher

1. 500 liters large fast acting oil-jacketed kettleGood for low volume applications. Sealant melts from sides inward. Recirculation helps move hot sealant from the bottom to the center to improve melt

  • Model: ESP-3000
  • Tank volume: 4595/4895 kg (with crack router)
  • Chassis total weight: 7500×2220×2650 mm


ENUO road maintenance vehicle produces longer-lasting blow pothole patch and road repair faster, safer and more economically any time of year. ENUO road maintenance vehicle is the most versatile tools for road maintenance on the market today. One road maintenance vehicle can do everything including cleaning the surface, spraying tack coat, combining aggregate and emulsion, and finishing the job with a final dust coat of aggregate. By using ENUO road maintenance vehicle, you can fix a one-square-meter pothole in 5 minutes with only one operator.


1. Cummins diesel engine is employed to ensure high efficiency and low level of noise and air pollution.

2. Powerful rotary blower driven by motor through coupling provides stable wind force for aggregate and emulsion feed.

3. V-shape aggregate hopper designed according to the principle of hydrodynamics, gravity feeding, energy efficiency.

4. Thick steel pressure tank for bitumen emulsion and cleaning diesel.

5. Compressed air driving system, aggregate and emulsion are driven by air, no moving mechanical parts to break or wear and is easily accessible for cleaning and servicing of the feed gate and sub-systems.

6. Clog-proof system: Gravity feed with hopper vibration system along with venturi effect passes 10 cm rock through the aggregate pipe, eliminating the clogging troubles; Unique pressure feedback system, effectively prevent aggregate pipeline clogging.

7. User-friendly: By using adjustable boom, centralized control handle with spray radius scope of 5.5 meters, it greatly reduces the operator labor intensity.

8. Safety Design

* With two flashing lights and an arrow board at the rear of the equipment, it increases jobsite visibilities and lends safety to the patching operation.

* Pressure safety valves fixed on air compressor, blower, emulsified asphalt tank and flushing tank provide a simple visual data.

9. Wide applications: Potholes, alligator cracks, shoulders and washouts in parking lots, residential roads, and highways.

10. Fast repair: With 70 kg/minute material discharging speed, it only takes 5 minutes to patch a one-square-meter pothole, and repair over 200 potholes of different sizes in a working day.

11. Good result: It has been proven that 97% of the patched potholes can serve over 5 years.

12. Low maintenance: No more than 5 minutes is required to maintain the equipment with 1 liter of diesel to flush the emulsified asphalt hose and spray nozzle.

Material required for the machine

A. Emulsion: Rapid-Break-Rapid-Setting cationic emulsified asphalt with bitumen content 65% above.

B. Aggregate: Coarse crushed basalt or diabase aggregate in 3-6 mm diameter, dry and dustless.


ESP-3000 road maintenance vehicle


7500×2220×2650 mm

Gross weight

14 tons

Aggregate hopper

3 m³

Emulsion tank

600 L, Working pressure: 0.5~0.7 MPa

Cleaning tank

50 L, Working pressure: 0.5~0.7 MPa

Chassis truck

Chassis truck

Dongfeng, 2 axles

Wheel base

4100 mm


Cummins lSB 3.9-125 hp, American Brand

Max. Speed

99 km/h


Michelin, French brand

Power system

Secondary engine

Cummins 4BT3.9-C80, Rated power: 80 bhp @  2000 rpm, American Brand


Pedro Gil FG30-150/33.20, Spanish Brand, 45  hp, 1500 r/min, 7.80~40.29 m³/min blast capacity, 300~1000 mbar pressure

Air compressor

Pressure 0.8 MPa, Air flow 0.183 m³/min(2150r/min),  15 L gas tank, 0.7 MPa safety valve pressure


Aggregate hose

Internal diameter Φ89mm, seamless,  wear-resisting CR hose

Emulsion hose

1/2 inches

Spray nozzle

Emulsion nozzle

16x2 mm

Aggregate nozzle

Φ89 mm perforated pipe

Ejection hose suspension arm

Working radius

5 m

Control handle

Control emulsion and aggregate feed, engine  speed, vibrator and horn.

Joint number

3, operation with no fatigue