High-precision bitumen sprayers, asphalt plants, excavators, and aggregate crushing systems tailored for global contractors.
In modern pavement engineering, structural longevity and inter-layer shear strength are directly dependent on the quality of bond coat execution. An asphalt tack coat sprayer (or bitumen distributor) serves as the core instrument for applying thin, precise applications of liquid bituminous material—such as emulsified asphalt (CQS-1h, SS-1h) or cutback asphalt—to existing concrete or asphalt surfaces prior to overlaying. Inadequate or non-uniform tack coat application is responsible for over 60% of premature pavement delamination, slippage distress, and reflective cracking in highway and airport runway construction globally.
Key Industry Insight: According to AASHTO and Eurocode pavement standards, maintaining a consistent tack coat application rate between 0.20 to 0.50 L/m² with a spray variance of less than 2% is mandatory for high-stress highway corridors. Modern OEM asphalt tack coat sprayers utilize computer-synchronized hydraulic drives to eliminate velocity-dependent application errors.
The global demand for high-efficiency OEM asphalt tack coat sprayers is accelerating rapidly, driven by megatrends in municipal infrastructure modernization, belt-and-road transport corridors, and airport apron expansions across North America, Southeast Asia, the Middle East, Africa, and Eurasia. Key procurement officers, road contractors, and equipment rental conglomerates are shifting away from manual, unmetered distributor trucks toward intelligent, micro-computerized asphalt spraying systems that offer lower total cost of ownership (TCO) and compliance with international environmental standards.
High-speed, wide-width spray bars capable of continuous 6-meter coverage without nozzle clogging or pressure drops across multi-lane paving operations.
Ultra-precise micro-metering distribution systems that prevent bitumen buildup on airfield grooves and ensure compliance with strict shear-stress standards.
Compact, highly maneuverable truck-mounted or trailer-mounted units equipped with hand-spray wands for localized patching, utility trenching, and urban alleyways.
Rooted in our foundational collaboration with Chang'an University—China's premier institution for highway engineering machinery—our OEM asphalt tack coat sprayers incorporate state-of-the-art developments in fluid dynamics, power matching, and electronic feedback control systems. Unlike conventional sprayers that rely on manual speed matching, our intelligent bitumen sprayers feature real-time radar/encoder feedback linked directly to proportional hydraulic displacement pumps.
The vehicle’s forward ground speed is continuously tracked via ground radar or high-resolution shaft encoders. The central PLC controller recalculates pump speed up to 100 times per second, ensuring that whether the truck accelerates, decelerates, or operates on steep inclines, the sprayed bitumen volume per square meter remains constant at the user-defined target rate.
Equipped with triple-overlapping pneumatic spray nozzles, our spray bars eliminate traditional dripping and streak marks. Individual nozzle controls allow operators to adjust spray width electronically from 0.5 to 6.0 meters from the air-conditioned cabin interface. Instantaneous cut-off valves prevent residual bitumen leakage during transport.
Maintaining optimal liquid bitumen viscosity is essential for proper atomization. Our tack coat sprayers utilize heat-transfer oil jacketing systems paired with fully automated diesel burners (capable of 100,000 to 250,000 kcal/h thermal output). The tank structure features high-density rock wool thermal insulation, limiting thermal loss to less than 2°C per hour during standby.
We provide full custom engineering (OEM & ODM) for chassis compatibility including ISUZU, SINOTRUK HOWO, SHACMAN, FAW, DONGFENG, and European truck platforms. Below is a comparative breakdown of our core asphalt tack coat sprayer platforms:
| Parameter / Feature | Compact Utility (Trailer/Rigid) | Standard OEM Intelligent Sprayer | Heavy-Duty Highway Distributor |
|---|---|---|---|
| Tank Capacity Range | 1,000 L - 3,000 L | 4,000 L - 10,000 L | 12,000 L - 18,000 L |
| Spray Rate Accuracy | ± 2.0% | ± 1.0% | ± 0.5% |
| Max Spray Width | 3.0 Meters (Manual/Folding) | 4.5 - 6.0 Meters (Pneumatic) | 6.0 - 7.5 Meters (Triple-Fold) |
| Application Rate Range | 0.2 - 1.5 L/m² | 0.2 - 3.0 L/m² | 0.2 - 4.0 L/m² |
| Heating System | Direct Diesel Burner | Thermal Oil Jacket + Auto Burner | Dual-Burner Thermal Oil System |
| Control System | Manual / Semi-Auto Panel | Siemens PLC + Cabin Touchscreen | Smart Telematics + Radar Sync |
| Bitumen Compatibility | Emulsion, Cutback | Emulsion, Polymer-Modified, Rubberized | All Bitumen Grades, Crumb Rubber |
As a dedicated OEM manufacturer, we recognize that operating conditions in the tropical climate of Malaysia or Indonesia differ drastically from the freezing sub-zero environments of Russia or Scandinavia. We offer comprehensive customized options:
Pioneering Highway & Machinery Innovation Since 1998
HEM Group was founded by a group of professors from Chang'an University and industry experts in the road building sector in 1998 (originally Xi'an Hongda Communications Technology Co., Ltd.). As one of China's earliest high-tech enterprises focusing on independent research and design of road construction machinery, we have obtained a series of invention patents in mechanical dynamics, engine power matching, hydraulic transmission technology, and digital micro-metering controls. Recognized as a "High-tech Enterprise" by the Shaanxi Provincial Department of Science and Technology, we deliver proven industrial reliability.
In 2017, HEM Group established HME TOP Machinery Equipment Co., Ltd. to lead global trade, technical support, and after-sales service. Today, our machinery is exported to over 60 countries across Asia, Europe, Africa, North America, and South America. We maintain regional service hubs and spare parts warehouses in Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka to guarantee minimum operational downtime for our global partners.
End-to-End Solutions for Road Construction and Heavy Industry
Over two decades of continuous manufacturing excellence backed by academic research in mechanical and hydraulic systems.
OEM/ODM solutions tailored to specific project requirements, chassis specifications, and local environmental standards.
Dedicated technical service centers and spare parts inventories strategic positioned across 8 major international hubs.
Online remote troubleshooting, virtual technical assistance, and rapid dispatch of field service engineers.
Integrated equipment engineering spanning road building, aggregate processing, and earthmoving projects.
Complete product suites including intelligent bitumen distributors, asphalt pavers, chip sealers, cold in-place recyclers, road milling machines, and slurry seal pavers.
Robust excavators, backhoe loaders, wheel loaders, bulldozers, and specialized walking excavators engineered for severe emergency rescue and mining environments.
Heavy-duty mobile primary jaw crushers, mobile screening units, and impact crushers optimized for quarry operations and recycled concrete processing.
Expert answers regarding asphalt tack coat sprayer selection, maintenance, and technical compliance.
Our units utilize ground speed sensors (radar/encoder) paired with a closed-loop PLC system. When vehicle speed fluctuates, the hydraulic drive automatically adjusts bitumen pump output in real time to maintain a precise L/m² rate within ±1% accuracy.
Typically, fresh asphalt overlays require 0.20 to 0.35 L/m² of emulsified asphalt. Milled asphalt surfaces require 0.35 to 0.50 L/m² due to increased surface area. Old oxidized asphalt or concrete PCC pavements may require targeted rates specified by local transport authorities.
Yes. Our sprayers feature integrated thermal oil jacketing across the tank, pump, and spray bar assembly, capable of maintaining temperatures up to 180°C–200°C required for viscous polymer-modified bitumen and crumb rubber modified binders.
Engineered OEM customization—including mounting frame fabrication, PTO coupling design, and electrical control integration—typically takes 20 to 30 days depending on truck model specifications and local regulatory certifications.
Our units feature a multi-stage cleaning routine: automatic high-pressure air blowing forces remaining bitumen back into the tank, followed by a localized diesel solvent wash that cleans nozzles and valves in under 3 minutes.
All HME TOP / HEM Group equipment carries CE certification, ISO9001 quality management compliance, ISO14001 environmental management standards, and GOST/EAC conformity for Eurasian Customs Union markets.
Complete solutions from small equipment to large-scale mobile processing plants.
HME Machinery