Discover our flagship export fleet: Precision aggregate spreaders, cold recyclers, modified asphalt plants, and mining equipment manufactured to ISO 9001 global standards.
In modern pavement engineering, achieving structural longevity and high surface friction coefficient hinges upon the precision of bitumen-to-aggregate bonding. Aggregate Spreading Machines (also designated as aggregate spreaders, chip spreaders, or stone chip distributors) form the mechanical backbone of surface dressing, seal coating, micro-surfacing preparation, and chip sealing operations across highway networks and industrial corridors.
Our OEM aggregate spreaders feature fully hydrostatic wheel drives powered by high-torque hydraulic motors. This guarantees infinitely variable speed control from 0 to 25 km/h, preventing sudden speed surges that lead to aggregate clustering or uneven layer thickness.
Equipped with 10 to 16 independently controlled pneumatic or hydraulic aggregate gates. Each gate operates under direct microprocessor control, allowing dynamic working width adjustment from 2.5m to 4.2m without interrupting operational flow.
Integrated electronic monitoring systems calculate aggregate distribution mass per square meter ($kg/m^2$) in real-time. Speed sensors automatically sync feed roller rotation rates with vehicle travel speed to maintain strict application tolerances within ±1.5%.
Founded in 1998 under the original name Xi'an Hongda Communications Technology Co., Ltd., HEM Group was established by a coalition of distinguished professors from Chang'an University—Asia's premier academic institution for highway engineering and heavy machinery design.
Our OEM manufacturing facility is not merely an assembly line; it is a high-tech incubator recognized by the Shaanxi Provincial Department of Science and Technology. We hold numerous international invention patents covering mechanical dynamics, engine power matching, high-pressure hydraulic transmission systems, and digital electronic automation.
In 2017, to serve international road contractors, civil engineering enterprises, and regional dealers, HME TOP Machinery Equipment Co., Ltd. was established as our dedicated international export arm, managing full technical exchanges, OEM customization, and global field support.
| Performance Metrics | Self-Propelled Chip Spreader | Synchronized Chip Sealer (Bitumen + Chip) | Truck-Mounted Aggregate Spreader |
|---|---|---|---|
| Spreading Width Range | 2,500 mm – 4,500 mm (Telescopic) | 3,000 mm – 4,000 mm (Sync Gate) | 2,200 mm – 3,800 mm (Manual/Hydraulic) |
| Aggregate Size Compatibility | 3 mm – 30 mm (Gravel, Crushed Stone) | 3 mm – 25 mm (Pre-coated Chips) | 5 mm – 40 mm (Coarse / Fine gravel) |
| Hopper Volume Capacity | 8.0 m³ – 12.0 m³ (Self-tilting) | 6.0 m³ Aggregate + 8,000L Bitumen | 5.0 m³ – 10.0 m³ (Chassis dependent) |
| Dosing Precision ($kg/m^2$) | ± 1.0% Dynamic Hydrostatic control | ± 1.5% Dual Sync Computer Control | ± 3.0% Speed-proportional roller |
| Primary Application Field | High-speed Highway Surface Treatment | Single-pass Chip Seal Maintenance | Rural Roads, Shoulder Paving & Patching |
Road infrastructure environments differ vastly between tropical high-humidity regions, arid desert corridors, and sub-zero freezing zones. HEM Group designs macro machinery solutions adapted to global civil challenges:
In North America, Australia, and Russia, seal coating is vital for preventing water ingress into sub-base layers. Our self-propelled chip spreaders distribute aggregate within milliseconds of emulsified asphalt spraying, creating a durable waterproof wearing course resistant to heavy traffic loads.
In developing road networks across Southeast Asia, Africa, and Latin America, cost-efficient pavement construction is imperative. OEM aggregate spreaders paired with modified asphalt distributors enable low-cost surface dressing that transforms unpaved dirt roads into all-weather asphalt surfaces.
Mining operations require rugged sub-base stabilization. Our high-capacity aggregate spreaders distribute coarse aggregate, crushed stone, and cement binder blends prior to road milling or recycling, reinforcing haul roads against 100-ton dump truck stress.
HEM Group was founded by a group of professors from Chang'an University and experts in the road building industry in 1998 (firstly called Xi'an Hongda Communications Technology Co., Ltd.). It stands as one of the earliest high-tech enterprises focusing on independent research and design of road construction equipment in China.
Since its inception, the company has adhered to the principle of being guided by high-tech research and development and aiming to create an international brand for Chinese construction machinery. We focus on the R&D of high-end road maintenance machinery, acquiring a series of invention patents in mechanical dynamics, engine power matching, hydraulic transmission technology, and digital electronic control technology. In 2006, we were officially recognized as a "High-Tech Enterprise" by the Shaanxi Provincial Department of Science and Technology.
By today, we have developed a complete product chain providing customers with one-stop solutions. Our full equipment portfolio spans road milling machines, asphalt distributors, asphalt pavers, chip sealers, slurry seal machines, road wideners, paver feeders; mining crushers, jaw crushers, mobile screens; as well as earthmoving equipment such as road rollers, mini excavators, backhoe loaders, bulldozers, and water cleaning boats.
Over two decades of continuous research and manufacturing leadership, backed by Chang'an University engineering professors.
We provide full technical support for road paving technology, polymer asphalt mix formulation, and aggregate grading advice.
Bespoke vehicle chassis integration, customized hopper volumes, and specialized spreading widths designed for your exact job sites.
Round-the-clock online technical assistance, quick spare parts dispatch, and on-site operator training by factory engineers.
Established regional distribution teams and parts hubs across Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka.
Equipment proven across India, Sri Lanka, Indonesia, Nigeria, South Africa, Eritrea, Mozambique, Congo, Australia, Fiji, Bolivia, and beyond.
Our OEM machines utilize a closed-loop electronic control system that syncs vehicle travel speed via hydrostatic drive sensors directly with spiral feed augers and pneumatic discharge gates. This guarantees uniform coverage ($kg/m^2$) across all operating speeds, keeping variance within ±1.0%.
Yes. The hoppers are engineered with high-frequency anti-bridging vibration motors and hydraulic feed rollers designed specifically to prevent damp aggregate clumping or sticky rubberized asphalt aggregate bridging during chip sealing.
We offer full engineering flexibility to mount aggregate spreaders and bitumen distributor tanks onto major chassis brands including Sinotruk HOWO, Shacman, FAW, Isuzu, MAN, and Mercedes-Benz. Towed and self-propelled dedicated units are also manufactured.
Standard equipment models are delivered within 15 to 20 days. Tailored OEM/ODM configurations requiring custom chassis brackets or modified electrical standards are typically completed within 30 to 40 days, tested thoroughly at our 5,000m² facility prior to ocean shipment.
Through our export division (HME TOP Machinery Equipment Co., Ltd.), we maintain regional spare parts warehouses and service hubs across Russia, South Africa, Malaysia, Kenya, and Uzbekistan. We provide 24/7 technical hotline access and dispatch field technicians for on-site commissioning.
Explore our expanded machinery portfolio available for direct factory OEM supply, complete with worldwide logistics, custom painting, and localized field commissioning.
HME Machinery