Explore our state-of-the-art machinery line engineered for high-volume, precision paving operations and continuous hot mix asphalt production.
A deep technical analysis of Hot Mix Asphalt manufacturing, mix designs, thermal management, and volumetric optimization for long-life pavement structures.
Hot Mix Asphalt (HMA) is a engineered composite material consisting of precisely graded mineral aggregates, liquid asphalt binder (bitumen), and controlled air voids, produced at elevated temperatures ranging from 150°C to 180°C (300°F to 350°F). As a tier-one supplier and manufacturing factory, HEM Group leverages continuous batching automation and Dynamic Shear Rheometer (DSR) binder matching to guarantee superior fatigue resistance, reduced rutting depth, and structural longevity under severe axle loading conditions.
Utilizing Gyratory Compaction to evaluate Voids in Mineral Aggregate (VMA), Voids Filled with Asphalt (VFA), and total air voids (typically targeted at 4.0%). This structural alignment eliminates permanent deformation under heavy traffic loading.
Engineered stone-on-stone contact matrix combined with SBS polymer-modified bitumens and cellulose fibers. Provides exceptional shear strength, splash reduction, and surface skid resistance for high-speed motorways.
Comparing high-output drum mix plants with multi-screen tower batch plants. Batch mixing delivers absolute precision for changing mix specifications, while continuous counter-flow drum plants maximize hourly production efficiency for mega-projects.
| Performance Parameter | Continuous Drum Mixing Plant | Tower Batch Mixing Plant | Polymer Modified Asphalt (PMA) Plant |
|---|---|---|---|
| Production Capacity | 100 - 400 Tons / Hour | 80 - 320 Tons / Hour | 20 - 80 Tons / Hour (Specialized) |
| Aggregate Screening | Cold Feed Volumetric Calibration | Hot Screen Multi-Deck Grading (4-6 Decks) | High-Shear Dispersion Unit |
| Bitumen Binder Compatibility | Standard Neat Bitumen / Modified Binders | All PG Binders, SBS, Crumb Rubber, RAP | SBS, SBR, EVA, Rubberized Bitumen |
| RAP Integration Capacity | Up to 50% via Recycler Ring | Up to 30% via Batch Addition / Dryer Collar | N/A (Binder Manufacturing Stage) |
| Thermal Efficiency | Counter-Flow Design (>90% Thermal Transfer) | Parallel Dryer Drum (>85% Efficiency) | Thermal Oil Heating Jackets |
| Control Automation | PLC Continuous Loop Sensing | Microprocessor Precise Scale Batching | Integrated High-Viscosity Flowmeters |
Founded by Chang'an University professors and highway machinery experts, bridging academic R&D with industrial manufacturing excellence since 1998.
HEM Group was founded by a group of professors from Chang'an University and leading experts in the road building industry in 1998, initially established as Xi'an Hongda Communications Technology Co., Ltd. It stands as the earliest high-tech enterprise focusing on independent research, design, and manufacturing of high-end road construction and maintenance equipment in China.
Since its inception, the company has adhered to the principle of being guided by advanced high-tech research and development, aiming to create a world-class international brand for Chinese construction machinery. Our specialized focus centers on mechanical dynamics, engine power matching, hydraulic transmission technology, and digital electronic control systems. In 2006, HEM Group was officially recognized as a "High-tech Enterprise" by the Shaanxi Provincial Department of Science and Technology.
In 2017, to accelerate international trade and technical exchanges, the enterprise established its dedicated global export arm: HME TOP Machinery Equipment Co., Ltd. This division oversees international technical cooperation, import/export trade of self-operated equipment, global spare parts distribution, and on-site engineering support.
From aggregate extraction to final surface compaction, we deliver complete operational chains for road building, mining, and earthmoving projects.
We manufacture and supply the complete spectrum of highway construction machinery including continuous and batch Asphalt Mixing Plants, Asphalt Pavers, Intelligent Bitumen Distributors, Cold Milling Machines, Asphalt Paver Feeders, Synchronized Chip Sealers, Slurry Seal Pavers, Micro-Surfacing Units, Cold In-Place Recyclers (CIPR), Road Wideners, and Road Line Marking Equipment.
Our machines actively service national motorways, airport runways, city bypasses, rural roads, and logistics port terminals, guaranteeing optimal compaction and long-lasting smoothness.
Our earthmoving solutions comprise heavy-duty Wheel Loaders, Hydraulic Excavators, Backhoe Loaders, Motor Graders, Road Rollers, and specialized Spider Walking Excavators. Designed for extreme terrain, quarry excavation, foundation site prep, and emergency disaster relief operations.
Offering heavy-duty Mobile Primary Jaw Crushers, Mobile Cone & Roller Crushers, and Mobile Vibrating Screen Machines. Crucial for producing clean, cubical mineral aggregates required for strict Superpave and SMA Hot Mix Asphalt specifications.
Custom engineering tailored to local climate standards, regional binder grades, customs protocols, and worldwide logistics.
All machinery and asphalt plants comply with strict international regulatory standards including ISO 9001:2015 Quality Management Systems, European CE directives, EAC certification for Eurasian Customs Union, and AASHTO/ASTM specification benchmarks for pavement output.
We engineer customized solutions for extreme environments—ranging from cold-weather thermal insulation packages for Siberian highways to high-capacity dust filtration and cooling systems for Middle Eastern desert operations.
Our dedicated sales and logistics arm, HME TOP Machinery, manages full documentation, Ro-Ro / Flat Rack containerized shipping, customs clearance, duty management, and marine insurance to over 60 countries globally.
20+ years of dedicated manufacturing experience, 24/7 technical hotline, low-cost factory-direct spare parts, and localized field service teams.
Academic roots from Chang'an University ensuring continuous design innovation and mechanical durability.
On-site assistance for asphalt mix formula design, aggregate selection, and paving thermal management.
Tailored hopper capacities, screed heating technologies, and engine options (Deutz, Cummins, Weichai).
Real-time remote diagnostics, operator field training, and rapid spare parts dispatch to minimize downtime.
Established service infrastructure across Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka.
Embracing Warm Mix Asphalt (WMA), high-ratio RAP recycling, digital 3D paving control, and reduced carbon footprints.
By incorporating chemical additives or organic wax foam technologies, WMA reduces production temperatures by 20°C to 40°C. This lowers fuel consumption by up to 30%, drastically reduces greenhouse gas emissions, and expands the paving season into cold weather conditions.
Modern sustainability dictates re-using milled asphalt pavement. Our specialized drum recycling rings and collar systems allow safe processing of up to 50% RAP without aging the virgin bitumen binder, achieving substantial raw material cost savings.
Integrating GPS-guided 3D sonic screed controls, thermal imaging cameras, and real-time compaction density sensors. Ensures micro-level surface evenness (IRI < 0.8 mm/m) and prevents mat segregation during continuous paving.
Exported to over 60 countries across Southeast Asia, Africa, Central Asia, the Middle East, Eastern Europe, and South America.
Our machinery fleet is deployed on strategic infrastructure corridors across India, Sri Lanka, Indonesia, Nigeria, South Africa, Eritrea, Mozambique, Congo, Australia, Fiji, Bolivia, Russia, Kazakhstan, Uzbekistan, and beyond.
Expert technical answers covering mixing technology, maintenance protocols, batch accuracy, and global warranty fulfillment.
Direct factory supply solutions for crushing, chip sealing, milling, and specialized paving operations.
HME Machinery