Engineered to deliver exceptional specific power performance under demanding industrial configurations.
High-durability direct drive rotary screw compressor configuration designed for light-to-medium industrial plants. Built for reliable continuous duty cycle requirements.
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Industrial-grade 75kW (100HP) screw compressor supplying consistent high-volume flow rates. Sourced directly from our state-of-the-art Chinese manufacturing lines.
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Stationary diesel screw air compressor engineered with trusted Cummins/Yuchai/Weichai power units. Excellent for off-grid operations and mining environments.
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High-performance permanent magnet VSD technology coupled with built-in air dryers. Complete modular plug-and-play solution optimizing operational cost and installation space.
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Complete compressed air package solution containing an energy-efficient 22kW screw compressor, matching refrigerated and desiccant dryers, and a certified storage tank.
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Ultra-efficient two-stage compression unit designed for heavy manufacturing and industrial applications, delivering maximum air volume flow rates with minimal power.
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Integrated variable frequency drive (VSD) with high-efficiency permanent magnet motor, minimizing start-up peak current and optimizing part-load operations.
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Classic fixed speed heavy-duty rotary screw compressor, utilizing high-quality asynchronous motors for stable, continuous air production in tough industrial zones.
Learn More →A comprehensive analysis of thermodynamics, engineering specifications, and sourcing parameters for modern global procurement directors.
Oil-injected screw air compressors are the workhorses of modern manufacturing. Unlike dry or oil-free models, injecting oil into the compression chamber provides three critical benefits: lubrication, sealing, and cooling.
The oil forms a micro-thin dynamic seal between the asymmetric male and female rotors. This significantly reduces internal slippage (blow-by), allowing high volumetric efficiency even at higher pressure ratios. Furthermore, the oil absorbs a substantial portion of the heat generated during the polytropic compression process. This keeps discharge temperatures low, typically under 85°C to 90°C, bringing the thermodynamic process closer to the highly efficient isothermal ideal.
SER represents the power (kW) required to produce 1 m³/min of compressed air at a specific operating pressure. Sourcing from optimized Chinese factories utilizing precise 5:6 rotor profiles lowers SER by 5-8% compared to standard profiles.
Sourcing compressed air systems from major hubs in China, such as Malu Town in Jiading District, Shanghai, offers structural advantages for international businesses. The density of precision manufacturing allows factories to source high-grade steel, advanced CNC machining tools, casting foundries, and smart PLC components within a 50km radius.
A comparison of configurations, motor styles, and performance features tailored for industrial projects.
Modern plants experience highly variable air demands. Traditional fixed-speed compressors regulate output using intake throttling, which consumes up to 70% of full-load power even when running completely unloaded. Our VSD compressors, equipped with Permanent Magnet (PM) synchronous motors, adapt rotor speeds to real-time air demands, cutting energy consumption by up to 35%.
For systems operating at 8 to 13 bar, two-stage screw air compressors offer substantial thermodynamic efficiency gains. Dividing the pressure ratio across two distinct air ends reduces internal leakages and keeps the temperature difference low. Cooling the air between the first and second stages approaches isothermal compression, delivering up to 15% more air per kilowatt compared to single-stage units.
For operations seeking easy installation, our integrated systems combine the screw compressor, an air receiver tank, a refrigerated dryer, and multi-stage particulate filters onto a single, compact skid. This reduces installation labor, minimizes pressure drop across piping, and ensures dry, clean, oil-filtered air right out of the box.
Explore our heavy-duty industrial configurations, oil-free designs, and variable-frequency solutions built for continuous duty cycles.
Combines screw compressor, air receiver, air dryer, and multi-stage filtration in a single frame. Engineered for high performance with minimal spatial footprint.
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Provides absolute hydrocarbon-free air for food, chemical, and medical processing. Integrated sound attenuation ensures quiet operation.
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High-capacity dry-screw air end designed to support large-scale petrochemical plants and semiconductor cleanrooms.
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High efficiency dual-rotor casing designed to handle large volumetric requirements while reducing overall energy losses.
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Space-saving combined modular configuration offering stable pressure output for workshop machinery.
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Integrated direct drive compact station. Provides complete drying, air storage, and filtration solutions.
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Engineered for large operations and mining, featuring optimized pressure division to reduce mechanical stress.
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State-of-the-art 315kW system utilizing variable frequency drive (VFD) and dual air ends to maximize performance at 1.3Mpa pressure profiles.
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Cost-effective fixed-speed option with heavy-duty construction. Built for long lifespans in demanding operational environments.
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Integrated screw air compressor system. Low factory wholesale prices. We provide comprehensive OEM service for international brands. Features energy-saving, low noise operations, and high-quality accessories. Standard 1-year warranty with CE/ISO certificates.
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Model XD-8A: 0.8-1.2 m³/min delivery, 7-12 bar pressure. Direct drive coupling, automatic PLC controller, star-triangle start, air cooled. Features low operating noise (under 63dB) and discharge temperatures within 8°C of ambient temperature.
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Features an optimized pressure ratio, minimal leakage, and ultra-low noise. Combines first and second-stage rotors in a single casing, driven directly to keep rotor line speed matched for optimal efficiency.
See more products >Ensuring smooth import, customs clearance, site integration, and certification across diverse markets.
Importing large machinery requires strict compliance with local safety and environmental standards. We ensure our equipment is certified to meet international standards:
Buying from China doesn't mean sacrificing support. We maintain local service networks, providing:
Shanghai Honest Compressor Co., Ltd. is a British-owned enterprise founded in early 2004. Our primary manufacturing facility is located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China.
We are a large-scale manufacturing enterprise specializing in high-performance twin-screw air compressors and an important supplier of integrated air system solutions. We provide a comprehensive range of air solutions, including piston air compressors (low, medium, and high pressure, as well as oil-free models), screw compressor systems from 3kW to 480kW, gas separation equipment, refrigerant compressors, refrigerated dryers, desiccant dryers, filtration systems, and replacement consumables.
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Stay updated with our latest industrial research, market analysis reports, and corporate activities.
We regularly present our latest energy-saving VSD permanent magnet screw compressors at leading international industrial and engineering machinery exhibitions.
According to MRFR analysis, the dry vacuum pump market size is valued at US$ 5.97 billion in 2024. The dry vacuum pump market is expected to grow from US$ 6.17 billion in 2025 to US$ 8.28 billion in 2034, registering a stable CAGR. This highlights the growing industrial demand for clean, oil-free evacuation technologies across electronics and pharmaceutical manufacturing.
Comprehensive engineering and sourcing answers addressing key questions in the industrial air compressor industry.
With regular maintenance, a high-quality twin-screw air end has a design lifespan of 60,000 to 80,000 operating hours before requiring a major bearing overhaul. Regular oil changes (every 2,000 to 4,000 hours), air filter changes (every 2,000 hours), and oil separator replacements ensure optimal lifetime operation. Quality systems from top suppliers use premium bearings (such as SKF or FAG) to ensure long-term stability.
VSD PM (Variable Speed Drive Permanent Magnet) compressors match motor speed to real-time air consumption. In contrast, fixed-speed models continue running the motor at full speed even when unloaded, consuming significant energy. If your factory has fluctuating air demand, VSD PM systems can reduce energy bills by 30% to 50%, often delivering a full return on investment (ROI) within 12 to 18 months.
Our standard oil-injected screw compressors keep oil carryover below 3 ppm (parts per million) thanks to a multi-stage separation tank and high-quality pleated oil separator elements. If your process requires cleaner air (e.g., food packaging or electronics), we integrate secondary refrigerated and desiccant adsorption dryers along with activated carbon line filters to reduce oil vapor to food-grade quality levels.
Shanghai Jiading (and specifically Malu Town) is a major manufacturing hub with a mature industrial supply chain. This region hosts top-tier precision rotor milling facilities, casting plants, electric motor factories, and testing labs. This geographical concentration helps lower production and logistics costs while ensuring strict quality control and easy access to international shipping via the Port of Shanghai.
Yes. Our industrial systems feature IP54 or IP55 dust- and water-resistant motors, heavy-duty cooling fans, and large aluminum radiators. For high-temperature regions, we provide high-ambient options rated for operation up to 50°C. For cold climates, we can integrate oil heating elements to prevent condensation from forming inside the oil lubrication loop during startup.
Our products are fully compliant with ISO 9001 quality management systems. For European imports, we supply CE-marked configurations conforming to the Machinery, Low Voltage, and Pressure Equipment Directives. For North American buyers, we can configure models with ASME-certified air receiver tanks and UL/CSA certified electrical components.
Ensuring complete moisture removal and oil separation to protect downstream pneumatic components.
Ultra-silent enclosure cabinets with 4-in-1 layout options. Suitable for placement directly inside active working spaces without noise disruption.
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Oil-free air blower and vacuum pump integration, using permanent magnet motors and dedicated frequency inverters for water treatment and pneumatics.
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Precision filtration elements designed for high separation efficiency, maintaining system oil integrity and keeping air output clean.
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High-capacity refrigerated compressed air dryers rated for 7.5HP to 100HP setups. Features eco-friendly refrigerants and optimal dew point control.
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Versatile 4-in-1 packages built with high-volume air receivers (up to 600L) and integrated drying systems. Engineered for durability.
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Micro-heat desiccant regeneration dryer systems. Provides stable pressure dew points down to -40°C or -70°C for sensitive process applications.
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Double-stage compression machine protected by IP55 insulation. Built to optimize efficiency and minimize energy costs in harsh environments.
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Features dual-stage compression combined with variable frequency drives. Engineered for heavy industrial operations demanding low energy costs.
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