Explore our high-performance fleet manufactured for worldwide infrastructure deployments.
Founded in 1998 as Xi'an Hongda Communications Technology Co., Ltd. by distinguished professors from Chang'an University—China's top highway engineering institution. Our mechanical dynamic and pavement science foundation ensures unmatched technical rigor.
Recognized officially as a "High-Tech Enterprise" by the Shaanxi Provincial Department of Science and Technology in 2006. We hold extensive patents across hydraulic transmission, engine power matching, high-shear grinding, and digital control systems.
Operated via HME TOP Machinery Equipment Co., Ltd. (established 2017), managing direct international trade, turnkey engineering execution, custom OEM/ODM manufacturing, and rapid global field support across 60+ countries.
Deciphering the physics of micro-milling, polymer dispersion, and automated bitumen formulation.
Polymer Modified Bitumen (PMB) and Crumb Rubber Modified Bitumen (CRMB) represent the pinnacle of modern pavement engineering. Modern high-load expressways, heavy-duty logistics corridors, and airport runways demand asphalt binders capable of enduring severe dynamic shear stress, extreme thermal fluctuations (-30°C to +70°C), and rutting forces. Achieving these mechanical properties requires precise, repeatable production technology—a standard pioneered by HEM Group (HME TOP Machinery) through advanced OEM Polymer Modified Asphalt Plants.
Our OEM polymer-modified bitumen equipment is engineered with modular precision, incorporating high-torque mechanical components, smart heating loops, and automated dosing logic:
| System Sub-Module | Engineering Specification | Operational Performance Impact |
|---|---|---|
| High-Shear Colloid Mill | Multi-stage tooth-blade configuration; 3000+ RPM; Dynamic gap precision adjustment (0.1mm-0.5mm). | Ensures complete mechanical breakdown of SBS polymers, crumb rubber, and sulfur cross-linking agents into micro-particles. |
| Automated Polymer Dosing Unit | Pneumatic load-cell hopper system; Volumetric precision < ±0.5%; Continuous feed capacity up to 10 t/h. | Eliminates manual batching errors, guaranteeing exact binder formulations across high-volume production cycles. |
| Thermal Oil Heating Circuit | Dual-coil thermal fluid exchangers; Dynamic temperature control (±2°C tolerance up to 200°C). | Prevents thermal aging and degradation of base bitumen while optimizing polymer reaction kinetics. |
| Digestion & Devulcanization Tanks | High-torque turbine agitators; Anti-settling internal baffles; Integrated insulation jacketing. | Provides required residence time for polymer expansion, network cross-linking, and crumb rubber devulcanization. |
| Siemens PLC Automation Hub | Industrial touch-screen UI; Real-time viscosity monitoring feedback loops; Remote telemetry diagnostic integration. | Delivers complete process transparency, automated recipe management, and ISO-compliant quality tracking. |
During the polymer modification process, base asphalt binder is heated to precisely 175°C–185°C before being introduced to solid SBS polymer granules. The polymer must absorb the light aromatic fractions of the bitumen to swell and form a continuous three-dimensional network. If the mechanical shear force is inadequate, polymer agglomeration occurs, leading to rapid phase separation in storage tanks and premature pavement failure due to cracking or stripping.
For Crumb Rubber Modified Asphalt (CRMA), our plants combine physical high-shear dispersion with controlled thermal reaction times. This accelerates the swelling of vulcanized rubber particles in base asphalt, releasing antioxidants and carbon black into the matrix to enhance UV resistance and fatigue resistance under heavy traffic loading.
Advancing green bitumen modification, micro-emulsification, and AI-assisted production controls.
Integration of active carbon catalytic scrubbers and closed-loop condensation units within the PMA plant to eliminate hazardous volatile organic compound (VOC) emissions during high-temperature SBS compounding.
Real-time ultrasonic dynamic viscosity feedback sensors built directly into the colloid mill output manifold. System automatically adjusts rotor speed and pass frequency to achieve exact target Poise ratings.
Adapting shear mills and feed hoppers to process sustainable bio-resins, lignin-modified binders, and recycled ocean plastics alongside standard SBS/GTR polymers for low-carbon green highway programs.
Customized modified asphalt plants matching specialized civil infrastructure requirements.
Heavy freight corridors endure non-stop axial loading. Modified bitumen produced by our plants increases rutting resistance (High-Temperature PG 76-22 or PG 82-22), significantly lengthening service intervals and preventing pavement deformation under heavy truck traffic.
Airfield pavements experience extreme point loads and shearing forces during aircraft touchdown, coupled with exposure to jet fuel spills. OEM high-shear SBS plants formulate polymer binders with elevated elastic recovery (>90%), minimizing stone loss and thermal cracking.
From desert regions reaching surface temperatures over 70°C to high-altitude cold zones dropping to -40°C, our multi-functional plants precisely calibrate polymer cross-linking to expand the plastic-elastic range of asphalt binders for all climatic extremes.
Urban open-graded friction courses (OGFC) require highly viscous modified binders to lock aggregate stones in place while maintaining water drainage channels. Our multi-purpose plants blend high-viscosity additives seamlessly into standard bitumens.
Inside HEM Group's 5,000 m² state-of-the-art production complex.
The global infrastructure sector demands rapid deployment cycles, modular machinery design, and relentless quality control. HEM Group operates a 5,000 m² modern manufacturing hub backed by automated CNC machining centers, robotic welding cells, and dynamic hydraulic testing bays. With an annual capacity exceeding 5,000 machinery units across our full road machinery index, we offer unmatched supply chain predictability for international contractors.
Every colloid mill blade, mixing turbine, and pressure vessel is machined in-house using heavy-duty CNC lathes and laser cutting systems to maintain tolerances within ±0.01mm, ensuring zero vibration during high-speed shearing operations.
We provide full structural, electrical, and mechanical OEM/ODM customization. Whether client specs require containerized mobile plant units, skid-mounted batchers, or custom voltage adaptations (380V-600V / 50Hz-60Hz), our engineering team tailors every detail.
Every plant undergoes rigorous hydrostatic pressure checks, thermal oil circulation trials, and full-load automated control testing prior to packing and port dispatch, meeting stringent international engineering standards.
Streamlined export documentation, global logistics, and local engineering hubs.
HEM Group machinery is actively operating across over 60 countries and regions, including Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, Sri Lanka, India, Nigeria, Eritrea, Mozambique, Congo, Australia, Fiji, Bolivia, and beyond.
Fully certified under international quality and safety regimes. Our equipment meets European CE compliance, ISO 9001 quality standards, and ASTM D5973 / EN 14023 specification parameters for polymer modified bitumen processing.
Full turn-key export management, including specialized flat-rack container packing, marine insurance, bill of lading documentation, certificate of origin issuing, and destination customs clearance support.
Dedicated regional technical support teams and spare parts inventory warehouses strategically deployed in key regions across Asia, Africa, Eastern Europe, and South America to minimize jobsite downtime.
Integrating binder production with complete field paving, maintenance, and material processing equipment.
A high-performance polymer modified asphalt plant is part of a larger, integrated machinery ecosystem. At HEM Group, we provide complete technical synergy across every phase of infrastructure development:
Including high-density Asphalt Pavers, Slip-Form Concrete Pavers, Synchronized Chip Sealers, Slurry Seal Pavers, and Road Wideners engineered to apply modified bitumen paving layers with exact mat uniformity.
Featuring precision Cold In-Place Recyclers (CIPR), Road Milling Machines, Intelligent Bitumen Distributors, Bitumen Transportation Tankers, and Drum Decanting equipment.
Supplying mobile primary jaw crushers, mobile screening units, mini excavators, powerful crawler bulldozers, backhoe loaders, and specialized water restoration cleaning boats for earthmoving and quarrying needs.
Expert insights on OEM polymer asphalt plant selection, operation, and maintenance.
The colloid high-shear mill is the heart of any PMA plant. Base asphalt and raw SBS polymer granules must undergo intense mechanical tearing, friction, and dynamic shearing forces. A high-shear mill reduces polymer droplets down to microscopic dimensions (< 5 microns), ensuring SBS molecules form a stable, continuous chemical network with bitumen rather than separating during elevated-temperature storage.
Yes. Our multi-functional modified asphalt plants feature adaptable agitators, heavy-duty shear mills with specialized tooth profiles, and continuous thermal fluid heating circuits. This allows seamless switching or dual-blending of SBS polymers, EVA resins, and Ground Tire Rubber (GTR / Crumb Rubber) within a single production unit.
We provide comprehensive OEM customization including structural layouts (mobile containerized plants vs. stationary skid-mounted setups), automated batching capacity options (from 5 t/h up to 40+ t/h), custom electrical panel voltages (380V/415V/440V/480V at 50Hz or 60Hz), and localized software control languages (English, Russian, Spanish, French, etc.).
We provide 24/7 online technical support alongside on-site engineering dispatch. Our field service engineers handle plant assembly, electrical system integration, trial batching runs, and comprehensive operational training for local road contracting teams across the globe.
Complete your fleet with our high-efficiency road construction and maintenance machinery.
HME Machinery
