Electric-Powered Mobile Screw Air Compressor (Dual-Purpose Mobile Air Source for Sandblasting & Construction)

This machine features an electric motor direct-driving a twin-screw compressor unit, equipped with a wheeled mobile chassis and an IP54 fully enclosed motor for zero-emission, low-noise operation. The intelligent microcomputer control system integrates multiple protection functions, with power coverage from 37 to 250kW, air delivery from 6.0 to 40m³/min, and pressure from 0.7 to 1.8MPa. Widely used in sandblasting rust removal, outdoor anti-corrosion engineering, bridge and tunnel construction, mining, and other mobile operation scenarios—the efficient, environmentally friendly, and reliable core air source equipment for modern outdoor mobile construction.

This HLT series electric mobile air compressor is a high-efficiency screw air compressor driven by an electric motor and equipped with a wheeled mobile chassis, specifically designed for outdoor mobile air supply applications. The core working principle is: the electric motor drives the screw compressor unit through direct coupling, and two asymmetrical screw rotors perform continuous, smooth meshing compression inside the compression chamber, converting mechanical energy into gas pressure energy to provide stable, clean compressed air for various pneumatic equipment and construction processes. As the ideal mobile air source for sandblasting machines, jackhammers, pneumatic tools, and other equipment, this HLT electric mobile air compressor stands out with its significant advantages of zero emissions, low noise, high reliability, and exceptional mobility, making it the preferred air supply equipment for outdoor anti-corrosion engineering, bridge construction, tunnel construction, mining, and other mobile operation scenarios. The core working process is: air passes through the pre-filter, then through the air filter and inlet controller, enters the screw compressor chamber to mix with lubricating oil, and is compressed linearly and continuously by the asymmetrical rotors. The compressed oil-air mixture enters the oil tank and separation system for three-stage separation, and the separated compressed air is cooled by the cooler before discharge through the outlet, providing continuous and stable compressed air for downstream equipment.

In terms of manufacturing quality and structural integrity, this HLT electric mobile air compressor features a high-efficiency electric drive system with a fully enclosed motor rated IP54, capable of withstanding harsh outdoor conditions. The screw compressor unit adopts high-performance rotor profiles and SKF heavy-duty bearings, featuring a simple structure with few wearing parts, high reliability, and long service life, with overhaul intervals reaching 40,000 to 80,000 hours. The entire unit incorporates scientific sound absorption and vibration reduction technology to ensure low-noise operation. The cooling system adopts an air-cooled design with high-efficiency cooling fans and radiators, ensuring stable operation even in high-temperature summer conditions. The mobile chassis is equipped with pneumatic tires or solid wheels and a tow bar, allowing easy towing to any job site. The entire unit is also equipped with an intelligent microcomputer control system, integrating multiple protection functions including excessive discharge pressure, excessive discharge temperature, low lubricating oil pressure, and main motor overload, enabling unattended automated operation. The control system features a Chinese character LCD display, showing real-time operating parameters such as system discharge pressure and discharge temperature, with automatic alarms and maintenance/repair prompts in case of abnormalities.

The performance advantages and application value of this HLT electric mobile air compressor are exceptionally prominent. First, zero-emission environmental protection – the electric drive produces no exhaust emissions, making it particularly suitable for tunnels, underground engineering, indoor operations, and other locations with strict air quality requirements. Compared to diesel mobile air compressors, it can save several thousand euros in fuel costs annually, significantly reducing operating costs. Second, quiet operation – the electric drive combined with scientific sound absorption and vibration reduction design results in noise levels far lower than diesel models, meeting construction requirements in noise-sensitive areas. Third, flexible mobility – the wheeled chassis design allows easy relocation to different job sites without fixed installation, quickly responding to on-site air supply needs. Fourth, strong adaptability – featuring forced air delivery characteristics, the volumetric flow rate is almost unaffected by discharge pressure, maintaining high efficiency across a wide speed range. Fifth, easy maintenance – the screw compressor unit has few components and no wearing parts, with a high degree of automation, requiring no long-term professional training for operators to achieve unattended operation.

In terms of application scope, this HLT electric mobile air compressor is widely used in sandblasting rust removal, outdoor anti-corrosion engineering, steel structure bridge construction, tunnel construction, mining, water conservancy engineering, transportation construction, shipbuilding, urban construction, petrochemical pipeline construction, jackhammer piling, exterior stone-like paint spraying, and other mobile operation scenarios. In the sandblasting rust removal field, it provides continuous, stable high-pressure airflow for mobile sandblasting machines, ensuring the sandblasting surface treatment grade reaches Sa2.5 or above, guaranteeing the quality of anti-corrosion engineering. Additionally, it can be used to drive various pneumatic tools, pneumatic machinery, and construction equipment. This HLT series electric mobile air compressor is an indispensable core air source equipment for modern outdoor mobile construction.

 

1. Main Models & Technical Parameters of HLT Series Mobile Screw Air Compressor
ModelMotor Power(kW)Discharge Pressure(MPa)Air Displacement(m³/min)Overall Dimension(L×W×H mm)Weight(kg)Moving Mode
HLT-DDY37370.7~0.86.0~6.52880×1650×16501350Two wheels
HLT-DDY45450.86.0~8.02850×1520×1500 ~ 1750×1000×1450880~1250Two wheels
HLT-DDY55550.7~1.08.7~10.62580~3320×1660~1710×1790~18002090Two wheels
HLT-DDY75750.7~1.310.0~13.62700~3220×1700~1850×1700~18501750~2090Two/Four wheels
HLT-DDY90900.8~1.412.0~16.52730~3150×1680~1910×1800~20301940~2560Two/Four wheels
HLT-DDY1101100.8~1.811.5~20.03065~3430×1835~1910×2000~20302800~3115Four wheels
HLT-DDY1321320.8~1.815.0~24.03065~3430×1835~1910×2000~20303070~3150Four wheels
HLT-DDY1601600.827.03870×1820×2200Four wheels
HLT-DDY1851851.4~1.818.0~25.53545~3980×1820~1980×23204100~4600Four wheels
HLT-DDY2002000.835.03870×1820×2250Four wheels
Note: The above parameters are summarized from mainstream industrial models, subject to minor changes with different configurations.
2. Permanent Magnet Variable Frequency Series (Optional Configuration)
ModelMotor Power(kW)Discharge Pressure(MPa)Air Displacement(m³/min)Overall Dimension(L×W×H mm)Weight(kg)Moving Mode
HLT-DDY37V370.8~1.36.01480×1000×1350650Two wheels
Note: Permanent magnet variable frequency air compressors realize on-demand air supply and constant pressure control with outstanding energy-saving performance.
3. Screw Airend Parameters
ItemSpecification
Airend TypeOil-injected twin-screw airend
Driving ModeDirect connection between motor and airend, gearbox-free design
Transmission EfficiencyHigh efficiency
Bearing MatchingSKF heavy-duty bearings
Design Service LifeOverhaul interval reaches 40,000~80,000 hours
4. Drive Motor Parameters
ItemSpecification
Motor TypeFully enclosed high-efficiency motor
Protection ClassIP54, adaptable to harsh outdoor environments
Insulation ClassClass F
Power Supply380V/50Hz, three-phase five-wire system
Starting ModeY-Δ star-delta starting
5. Cooling System
ItemSpecification
Cooling MethodAir cooling
Applicable Ambient Temperature-5℃ ~ +40℃
Heat Dissipation SystemHigh-efficiency cooling fan + radiator
6. Mobile Chassis
ItemSpecification
Moving ModeTwo wheels / Four wheels
Tire TypePneumatic tire / Solid tire
Traction MethodTraction drawbar
Parking ModeParking brake device equipped
7. Separation & Filtration System
ItemSpecification
Separation TechnologyThree-stage separation: centrifugal separation + gravity sedimentation + fine separation
Lubricating Oil CirculationAutomatic circulation driven by internal system pressure difference
Air FilterHigh-efficiency air filter element
Oil FilterHigh-efficiency oil filter element
8. Electrical & Control System
ItemFunction & Parameter
Control ModeMicrocomputer intelligent control system
Display ScreenChinese LCD display
Alarm FunctionsOver-high discharge pressure, over-high discharge temperature, low lubricant pressure, main motor overload, fan motor overload, three-phase power phase loss / phase sequence error, etc.
Core Control FunctionsAutomatic loading & unloading, emergency stop, idle auto-shutdown
Adjustable Setting ItemsStartup delay time, unloading pressure limit, high discharge pressure alarm value, high discharge temperature alarm value, low lubricant pressure alarm value, idle shutdown delay time, etc.
9. Application Scope & Parameters
Applicable IndustriesSandblasting & rust removal, outdoor anti-corrosion engineering, bridge construction, tunnel engineering, mining, water conservancy, transportation infrastructure, ship repairing, urban construction
Typical ApplicationsSupporting mobile sandblasters, wind pick pile breaking, exterior real stone paint spraying, pneumatic power supply for various air tools
Air Supply QualityContinuous, stable-pressure clean compressed air
Matched Cleaning GradeAbove Sa2.5 for sandblasting operations
Customization SupportCustomized air displacement and discharge pressure according to customer demands
10. Equipment Composition
Main ComponentsScrew airend (twin-screw rotors, SKF bearings, housing), drive motor (IP54 fully enclosed high-efficiency motor), air intake system (pre-filter + air filter + intake control valve), oil-gas separation system (oil tank + three-stage separator), air cooling system (air radiator + cooling fan), mobile chassis (two/four wheels + traction drawbar), intelligent control system (microcomputer controller + Chinese LCD display), pipeline fittings and accessories

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Company Overview

Founded in 2021 and located in Dongguan—a core manufacturing hub within the Guangdong-Hong Kong-Macao Greater Bay Area—Hualaite Machinery Equipment (Dongguan) Co., Ltd. is a national high-tech enterprise specializing in surface treatment and environmental protection equipment, integrating R&D, design, manufacturing, sales, and service.The company specializes in sandblasting machines, shot blasting machines, sandblasting booths, air compressors, dust collection equipment, and custom-designed automated production lines. Its products are widely used in industries such as shipbuilding, automotive parts, hardware and mold manufacturing, steel structures, and petrochemicals.

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When was Hualaite Machinery Equipment founded? Where is the headquarters located?

Hualaite Machinery Equipment (Dongguan) Co., Ltd. was established in 2021, with its headquarters located in Dongguan City, Guangdong Province, China. Situated in the core manufacturing area of the Guangdong-Hong Kong-Macao Greater Bay Area, the company is a national high-tech enterprise specializing in the research and development, design, manufacturing, sales, and service of surface treatment and environmental protection equipment.

We have direct service offices in Foshan, Shenzhen, Xiamen, and Sichuan, providing customers with timely and efficient localized support. Our products have been exported to more than 20 countries and regions, including Vietnam, Indonesia, Russia, and Malaysia.

The company has obtained ISO9001 Quality Management System Certification, has been recognized as a Guangdong Province Contract-Abiding and Creditworthy Enterprise, and owns multiple patents related to surface treatment equipment.