Explore our premium grade selection of two-stage compression, water lubricating, and variable speed rotary screw compressors.
Founded in early 2004, Shanghai Honest Compressor Co., Ltd. is a premier British-owned enterprise specializing in the research, development, and large-scale manufacture of high-efficiency twin-screw air compressors in China. Our world-class production facilities are strategically located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China.
Over the past two decades, we have established ourselves not only as a leading manufacturing powerhouse but also as a highly trusted global supplier of comprehensive air system solutions. We design, manufacture, and distribute a versatile range of compressor systems ranging from 3kW to 480kW, with displacement capabilities spanning 0.5 m³/min to 75 m³/min. Our extensive product portfolio includes low-pressure, medium-pressure, high-pressure, and water-lubricated oil-free screw air compressors, alongside high-precision screw vacuum pumps, gas separation equipment, refrigerant compressors, cold dryers, and industrial air filters.
By blending British design methodologies with Chinese manufacturing efficiency, we deliver products that outperform national energy efficiency standards. Every piece of equipment is subjected to rigorous quality testing under our fully implemented ISO9001:2015 quality management system, ensuring peak reliability, structural perfection, and maximum power savings for demanding industrial ecosystems globally.
Analyzing key evaluation factors for global procurement managers sourcing high-efficiency rotary compressors.
Energy consumption represents over 70% of a compressor's lifecycle cost. Modern enterprises prioritize PM VSD models to match varying air demands, drastically cutting energy waste and electrical overhead.
For operations spanning Europe, North America, and Southeast Asia, adhering to CE, UL, and regional environmental benchmarks is non-negotiable. Our manufacturing aligns with strict international standards.
Unscheduled downtime can compromise complete factory workflows. Procuring from an integrated OEM/ODM supplier guarantees a secure chain of consumable components such as air filters, oil separators, and replacement elements.
Engineered to deliver high reliability and energy savings across a broad range of sectors.
Demanding dust-filled industrial environments require robust screw compressors. Our high-power units (up to 480kW) provide steady volume flows under severe conditions with minimal wear.
For sectors requiring absolute purity, our water-lubricated 100% oil-free screw compressors prevent contamination, delivering Class 0 certified air and safeguarding consumer health.
Metal processing relies on high-pressure cutting gas. Our specialized 15.5bar screw compressors provide dry, oil-free high-pressure air that ensures smooth cuts and keeps optical lenses clean.
How Shanghai Honest Compressor is driving the next generation of industrial air compression.
Our dual-rotor PM synchronous motors maintain peak efficiency even at low operating speeds. Unlike traditional motors, they eliminate rotor slip and start-up power spikes, keeping energy waste to a minimum.
By dividing the compression process into two stages, we lower the pressure ratio per stage. This reduces internal leakage, lowers thermal stress, and increases volumetric efficiency by up to 15% compared to single-stage units.
Using pure water as the sealing and cooling medium ensures 100% oil-free compression. The near-isothermal compression process delivers high volumetric output without the risk of oil contamination.
Our integrated VFD and PLC controllers support remote monitoring. Real-time telemetry tracking pressure, temperature, and current helps prevent unplanned downtime through predictive maintenance.
Technical specifications across our standard, variable, and high-pressure configurations.
| Compressor Type | Power Range (kW) | Working Pressure (bar) | Air Flow Capacity (m³/min) | Cooling Method | Best Application |
|---|---|---|---|---|---|
| PM VSD Screw Compressor | 7.5 kW – 132 kW | 7 – 10 bar | 1.2 – 24.0 m³/min | Air-Cooled / Water-Cooled | Variable-load industrial production plants |
| Two-Stage Energy Saving | 90 kW – 480 kW | 8 – 13 bar | 15.0 – 75.0 m³/min | Water-Cooled / Air-Cooled | Continuous heavy duty manufacturing & mining |
| Water-Lubricated Oil-Free | 11 kW – 110 kW | 7 – 10 bar | 1.5 – 18.0 m³/min | Air-Cooled | Food processing, pharmaceuticals, medical |
| High Pressure (Laser Special) | 11 kW – 37 kW | 13 – 16 bar | 1.0 – 4.5 m³/min | Air-Cooled | High precision laser cutting machinery |
Explore our highly integrated PM frequency conversion units, belt-driven configurations, and purification dryers.
Seamless communication, strict quality audits, and robust post-sale support infrastructure.
We implement quality management across our entire design, manufacturing, and shipping process. Our production lines adhere to ISO9001:2015 quality guidelines. Each rotary screw air compressor undergoes test runs under load conditions at the factory to verify that its output volume and energy usage meet strict performance requirements.
To support global buyers, we maintain a dedicated technical team. Our customer service support line 400-705-9168 connects you with application engineers who can help with design planning, installation advice, operational training, and overhaul service schedules.
We work with international distributors, heavy mining operations, and industrial equipment OEMs. Our team can customize structural dimensions, alter pressure limits, adjust voltage or frequency controls, and design multi-compressor system piping layouts to match your local power and space requirements.
Expert answers to common technical, operational, and procurement questions.
PM VSD (Variable Speed Drive) compressors dynamically adjust the motor's operating speed to match your real-time air demand. Traditional fixed-speed compressors run continuously at full speed, venting excess air or running unloaded, which wastes power. PM VSD systems can reduce energy use by up to 30%, lower starting current, and maintain stable line pressure.
Unlike oil-injected models that use synthetic oil for sealing and cooling, water-lubricated units use pure water inside the compression chamber. This provides effective cooling and sealing without using hydrocarbons. This ensures the discharged air is free of oil vapor, meeting the strict standards required by food, beverage, and medical packaging industries.
Two-stage compression splits the overall pressure ratio across two separate rotary screw stages. Inter-cooling between the stages keeps the air temperature closer to isothermal compression. This reduces internal air slippage, lowers mechanical loads, and saves up to 15% more power compared to a single-stage system operating at the same pressure.
Precision laser cutting requires high-pressure air to clear molten metal cleanly from the kerf. Standard industrial systems run at 7 to 10 bar, but fiber laser cutting systems often need 13 to 16 bar. Our specialized 15.5 bar screw compressors are designed to deliver dry, high-pressure air to prevent lens contamination and ensure clean cuts.
To keep your system running reliably, we recommend replacing the air filter and oil filter every 2,000 operating hours under normal conditions. The air-oil separator element should be replaced every 4,000 hours. Regular lubrication, cooler cleanings, and monitoring your VFD operating metrics help ensure long-term performance.