Explore our high-performance fleet designed for durability, micro-metering accuracy, and heavy-duty highway projects.
Founded in 1998 by a distinguished coalition of professors from Chang'an University—Asia's premier institution for highway construction and engineering dynamics—HEM Group (originally Xi'an Hongda Communications Technology Co., Ltd.) stands as China's pioneer in autonomous research, mechanical design, and high-end road building machinery production.
Recognized as a certified "High-Tech Enterprise" by the Shaanxi Provincial Department of Science and Technology in 2006, our laboratory breakthroughs encompass advanced mechanical dynamics, engine power matching, closed-loop hydraulic transmission systems, and intelligent digital micro-controller electronic systems.
To streamline global supply chains, technical documentation, and international logistics, HME TOP Machinery Equipment Co., Ltd. was formed in 2017 as our dedicated export arm, providing turnkey road construction equipment solutions to over 60 countries across North America, Europe, Asia, Africa, and Oceania.
Understanding the micro-metering precision, hydraulic synchronization, and material distribution physics behind industry-leading aggregate spreaders.
Employs real-time radar velocity feedback combined with proportional hydraulic roller gates. Ensures strict aggregate application tolerances within ±1% across variable vehicle driving speeds.
Prevents thermal loss during seal coating. Simultaneous application of hot asphalt emulsion and aggregate chips eliminates dust interference and maximizes aggregate embedding depth.
Features independently controlled gate segments. Allows contractors to dynamically adjust spreading width from 2.5m to 4.2m on the fly to match variable lane geometries and shoulder drop-offs.
In global pavement maintenance, chip sealing (or surface dressing) remains the most cost-effective preventive maintenance strategy for extending asphalt pavement service life by 7 to 10 years. A Dagang-style self-propelled chip spreader serves as the technological core of this process, engineered to uniformly apply pre-coated or natural aggregates over freshly sprayed bitumen binder.
Key Operational Advantage: By eliminating aggregate segregation and ensuring instantaneous adhesion before bitumen emulsion breaks, high-end chip spreaders minimize stone loss by up to 35% compared to conventional aggregate distributors.
The operational efficiency of HEM Group's chip spreaders rests on intelligent power matching algorithms. High-torque diesel engines paired with variable-displacement hydraulic pumps drive both the drive axles and aggregate feeding rollers. This guarantees constant linear torque across rugged terrains, steep gradients, and varying hopper weight conditions.
Aggregate size variability frequently leads to uneven mat texture and premature stripping. Dagang chip spreaders integrate internal transverse spiral augers and anti-bridging agitators inside the receiving hopper. This ensures continuous aggregate homogenizing, preventing particle bridging and maintaining uninterrupted gravity-fed discharge onto the metering roller.
The global demand for asphalt pavement maintenance machinery has surged due to aging transportation networks across North America, Latin America, Southeast Asia, and Africa. As road authorities shift budgets from greenfield construction to asset preservation, high-precision self-propelled chip spreaders have become indispensable tools for municipal fleets and private road contractors.
China's industrial infrastructure ecosystem provides unparalleled supply chain integration, engineering agility, and cost-efficiency advantages over Western equipment vendors:
Engineered to deliver exceptional pavement surface treatment across diverse geographic and climatic environments worldwide.
Provides uniform macro-texture depth for high-speed roadways. Synchronized application ensures high skid resistance (BPN > 70) and reduces aquaplaning risks on heavy freight routes subjected to severe tire loading.
Optimized for low-volume rural road sealing. Allows rapid mobilization, fast aggregate spreading passes, and minimal traffic disruption, delivering cost-effective waterproof membranes for remote communities.
Designed with heavy-duty thermal insulation and robust hydraulic oil cooling systems. Operates flawlessly in sub-zero freeze-thaw mountain passes as well as high-heat desert environments (up to +55°C ambient temperature).
Compact turning radii and quick-response gate shut-offs permit precise aggregate placement around city manholes, street corners, and tight municipal corridors without damaging adjacent curbs or landscaping.
From aggregate production to surface finishing, HEM Group delivers end-to-end machinery solutions across all infrastructure stages.
Our complete machinery supply chain covers every major category required by highway departments, mining concessionaires, and civil engineering conglomerates:
Road Milling Machines, Self-Propelled Chip Spreaders, Synchronized Chip Sealers, Intelligent Asphalt Distributors, Slurry Seal Pavers, Micro-Surfacing Pavers, and Bitumen Decanters.
Asphalt Pavers, Concrete Pavers, Paver Feeders, Road Wideners (DK1800), Road Rollers, Slip-Form Pavers, and Thermoplastic Road Marking Machines.
KDG Series Batch Asphalt Mixing Plants, Continuous Asphalt Plants, Polymer & Rubber Modified Asphalt Plants, Bitumen Emulsion Plants, and Cold In-Place Recyclers (CIPR).
Mobile Primary Screening Plants, Mobile Jaw Crushers, Mobile Roller Crushers, and Heavy-Duty Vibrating Screens for aggregate quarrying operations.
Mini Excavators, Backhoe Loaders, Heavy Wheel Loaders, Powerful Bulldozers, Walking Excavators (Iron Spider-Man), and Eco-Friendly Water Restoration Clean Boats.
Exported to over 60 countries across Asia, Africa, Latin America, Europe, and Oceania with active service hubs worldwide.
Established regional distribution and technical response teams in Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka to deliver fast field assistance and spare parts distribution.
Complete management of export documentation, international freight routing, customs clearance, and overseas commissioning to guarantee hassle-free equipment delivery to any port worldwide.
On-site engineer installation, hands-on operator safety training, and 24-hour remote technical support to minimize project downtime and extend machine lifecycle ROI.
Technical and procurement answers designed for road contractors, fleet directors, and procurement officers.
Dagang-style chip spreaders incorporate micro-processor controlled proportional hydraulic metering rollers synchronized with real-time ground speed sensors. Unlike crude gravity spreaders, they maintain exact aggregate spread rates (kg/m²) regardless of vehicle speed fluctuations, eliminating aggregate waste, streak marks, and premature chip loss.
Yes. Our hoppers feature internal anti-bridging agitators and high-torque spiral feed augers that prevent damp, fine, or bituminized pre-coated aggregate particles from sticking or forming air pockets, ensuring continuous and uniform discharge across all gate segments.
Synchronized chip sealers spray hot asphalt emulsion and spread stone chips simultaneously from a single chassis within fractions of a second. This ensures that chips land in the hot binder at its lowest viscosity state, maximizing wetting and adhesion before binder skinning occurs, which is ideal for high-speed highways.
HME TOP Machinery maintains dedicated spare parts warehouses and local technical teams in key markets including Russia, South Africa, Southeast Asia, and Central Asia. We guarantee low-cost spare parts availability and offer 24/7 online video troubleshooting and on-site engineering support.
We provide comprehensive OEM customization including engine brand and emission compliance (Cummins, Weichai, Euro 5/6, Tier 4F), adjustable spreading width ranges (2.5m to 4.2m+), custom hopper volume capacity, specialized chassis fittings, and localized control UI languages.
Direct factory supply for high-end surface maintenance, recycling, compaction, and aggregate production.
HME Machinery