Explore our factory-engineered heavy equipment, mini excavators, slip-form pavers, and surface chemical applicators for global commercial infrastructure projects.
HEM Group (originally established in 1998 as Xi'an Hongda Communications Technology Co., Ltd.) represents China's pioneering enterprise specializing in independent R&D and engineering design for heavy-duty pavement preservation equipment. Conceived by distinguished professors from Chang'an University—a world-renowned center of excellence in highway engineering and automotive machinery—our organization has seamlessly bridged academic fluid dynamics with field-proven industrial manufacturing for over two decades.
In 2006, our commitment to technical breakthrough earned official designation as a "High-tech Enterprise" by the Shaanxi Provincial Department of Science and Technology. To streamline international engineering exchanges and provide direct localized distribution, HME TOP Machinery Equipment Co., Ltd. was established in 2017 as our specialized global sales, service, and technical support division.
Core Patent Holdings: Proprietary breakthroughs in mechanical dynamics, engine power matching, high-pressure pulse-free hydraulic transmission, automated chemical dosing, and digital CAN-bus electronic spray control systems.
Providing technical clarity on high-viscosity spray mechanics, precision atomization heads, and chemical compatibility for modern infrastructure sealing.
Equipped with heavy-duty diaphragm and hydraulic piston pumps engineered specifically for reactive sealers. Maintains steady bar pressures (up to 150 PSI) without fluid surging, eliminating uneven chemical thickness and micro-banding on concrete slabs.
Integrated chemical pathways utilizing FFKM seals, stainless steel manifolds, and fluoropolymer lining. Seamlessly handles high-VOC solvent acrylics, penetrating silane-siloxane mixtures, polyaspartics, lithium hardeners, and acid stains.
Micro-calibrated flat-fan atomization nozzles ensure uniform micron-droplet distribution across wide spray booms (1.5m to 6.0m). Automatic flow matching adjusts output directly to vehicle travel speed, preventing chemical waste.
| Chemical Sealer Class | Viscosity Range (cPs) | Recommended Pump Type | Atomization Pressure | Typical Coverage Yield |
|---|---|---|---|---|
| Silane / Siloxane Penetrating Sealers | 1 - 15 cPs | Low-Pressure Diaphragm / Electric Spray System | 30 - 50 PSI | 6.0 - 8.5 m²/L |
| Water-Based Acrylic Curing Compounds | 20 - 100 cPs | High-Flow Centrifugal or Diaphragm Pump | 40 - 70 PSI | 4.5 - 6.0 m²/L |
| Solvent-Based High-Solids Acrylics | 80 - 250 cPs | Pneumatic Airless / Hydraulic Piston System | 80 - 120 PSI | 3.5 - 5.0 m²/L |
| Lithium Silicate Densifiers / Hardens | 5 - 25 cPs | Stainless Steel Pulse-Free Diaphragm | 35 - 60 PSI | 8.0 - 12.0 m²/L |
| Polyaspartic & Polyurethane Topcoats | 200 - 600 cPs | Heated Recirculating Hydraulic Piston Unit | 120 - 180 PSI | 2.5 - 4.0 m²/L |
Understanding the economic driving forces behind mechanical spraying systems in modern highway and civil engineering construction.
Globally, premature degradation of concrete highways, bridge decks, and airport aprons due to freeze-thaw cycles, chloride intrusion, and alkali-silica reaction (ASR) costs municipal authorities billions annually. Traditional manual roller and pump-can application methods yield inconsistent membrane thickness, leaving structural voids prone to micro-cracking and moisture ingress.
Automated concrete sealer sprayers engineered by HME TOP bridge this operational gap. By delivering computerized rate control linked to ground-speed telemetry, our equipment guarantees precision application down to ±2% tolerance, extending infrastructure service life by up to 40% while reducing labor overhead by 65%.
From quarry crushing to highway paving and final chemical sealing—one-stop technical solutions.
Automated Concrete Sealer Sprayers, Intelligent Bitumen Distributors, Synchronized Chip Sealers, Slurry Seal Pavers, and Micro-Surfacing Units designed for highway life extension.
Slip-Form Cement Pavers (DHP Series), Asphalt Pavers, Material Transfer Feeders, Cold In-Place Recyclers (CIPR), and Heavy Road Milling Machines for complete road rehabilitation.
Mobile Jaw Crushers, Mobile Screening Stations, Mini & Medium Excavators, Wheel Loaders, Backhoe Loaders, and Amphibious Water Restoration Boat Excavators.
Operating across 60+ nations with direct technical assistance hubs, factory OEM customization, and international certification.
Dedicated technical engineering teams and spare parts warehouses established in Russia, Malaysia, South Africa, Uzbekistan, Ghana, Kenya, Indonesia, and Sri Lanka for rapid field dispatch.
Full compliance with ISO9001 quality management, CE international machine safety standards, and regional environmental regulations across North America, EU, Asia, and Africa.
Custom sprayer boom lengths, tank capacities (500L to 10,000L truck-mounted units), chassis adaptability, and specialized chemical pump selections for custom project specifications.
Pioneering the next era of smart pavement preservation through telemetry, IoT, and high-precision automation.
Integration of IoT cloud diagnostics that record exact chemical application rates (liters/m²), GPS position, fluid temperature, and ambient humidity to guarantee QA/QC audit trails for state transportation departments.
Self-steering autonomous concrete curing and sealing sprayers for slip-form paving operations, capable of operating synchronized behind concrete pavers with sub-centimeter accuracy.
Transition to lithium-battery powered low-noise hydraulic spraying rigs for indoor logistics floors, tunnels, and urban night construction, completely eliminating exhaust fumes during chemical application.
Expert technical clarity on concrete sealer sprayers, chemical handling, maintenance, and ordering options.
Explore our extended portfolio of asphalt emulsification units, slip-form cement pavers, road milling machines, and crushers.
HME Machinery
