High-performance double-stage rotary screw compressor optimized with Variable Speed Drive Permanent Magnet (VSD PM) technology and integrated factory inverter for dynamic energy scaling.
Precision-engineered desiccant adsorption systems featuring a modular dual-tower setup. Offers exceptional dew point suppression for dry process air applications globally.
State-of-the-art dry-type oil-free screw compressor engineered to ensure 100% hydrocarbon-free air delivery, ideal for pharmaceutical, biotechnology, and electronics production.
Heavy-duty 132kW two-stage compression unit featuring dual permanent magnet motors for unmatched energy savings under partial load cycles.
Eco-friendly water-lubricated screw compressor utilizing advanced polymer-coated rotors to maintain pure air delivery and zero environmental footprints.
Robust variable frequency system with precise pressure feedback loop control, saving up to 30% on electricity compared to fixed-speed alternatives.
Cost-effective PM VSD air compressor series ranging from 7.5kW to 132kW, configured for fluctuating pressure demands in manufacturing environments.
Compact integrated screw system containing integrated drying and filtration capabilities, providing plug-and-play operation for smaller footprint requirements.
In modern industrial processes, gas compression technology is vital. Rotary screw gas compressors occupy a crucial position globally because they bridge the gap between low-capacity reciprocating systems and extremely high-flow dynamic centrifugal compressors. By utilizing positive displacement principles via intermeshing helical rotors, these systems deliver stable volume flow rates across variable operating pressures.
The transition toward unconventional gas extraction, biogas recovery, and cleaner processing systems has driven demand for chemical-grade screw gas compressors. Unlike standard air compressors, process gas screw units handle specialized gases, including natural gas, sour gas, ammonia, carbon dioxide, helium, and synthetic gases. Under strict industry norms, manufacturers must build systems that comply with API 619 standards. This ensures thermal resilience, mechanical strength, and zero gas leakage during continuous operation cycles.
Additionally, China has grown into a leading manufacturing hub for high-quality rotary screw gas compressors. Chinese manufacturers now produce top-tier equipment that competes globally. By utilizing advanced rotor profiles, imported bearings, and domestic foundries, they deliver cost-effective, high-performing machinery to international buyers.
The rotary screw compressor market is experiencing rapid changes driven by energy regulations and smart digital technologies. Key technical trends include:
Chinese rotary screw gas compressors are widely used in critical global applications:
At the wellhead, inlet pressures often drop as reserves deplete. Installing localized rotary screw compressors boosts wellhead pressure, extending gas field lifespans and ensuring steady flow into regional distribution networks.
In petrochemical storage terminals and refineries, volatile organic compounds (VOCs) and light hydrocarbons vaporize inside storage tanks. Screw VRUs capture these gases, compressing them back into liquid form or routing them into fuel systems to reduce emissions and recover valuable product.
Renewable energy projects use rotary screw systems to compress raw biogas, which contains corrosive carbon dioxide and hydrogen sulfide. Chinese manufacturers supply specialized units with stainless steel gas paths, anti-corrosive coatings, and robust separation systems to handle these damp gases.
Founded in early 2004, Shanghai Honest Compressor Co., Ltd. is a British-owned enterprise located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China. Over the past two decades, the company has grown into a major manufacturing hub for twin-screw air compressors and advanced air system solutions.
Our comprehensive catalog includes piston air compressors (covering low, medium, and high pressures, alongside oil-free units), twin-screw air compressor systems ranging from 3kW to 480kW, gas separation equipment, refrigerant compressors, refrigerated air dryers, inline filters, ceramic membrane filtration setups, and genuine OEM consumables.
By blending European engineering design with Chinese supply chain efficiencies, we deliver reliable, high-performance equipment. Our factory supports global distributors with customized engineering (OEM/ODM) to meet specific regional requirements.
Looking ahead, gas compression systems must meet higher efficiency standards and support smart operations. The development roadmap focuses on three areas:
Standard air compressors draw atmospheric air and run under simple, non-corrosive conditions. Process gas screw compressors must handle hazardous, corrosive, flammable, or toxic gases. Consequently, they require specialized casing materials (like cast steel or stainless steel), explosive-proof electrical controls (ATEX/IECEx), specialized mechanical shaft seals (such as dry gas seals or pressurized double seals), and closed-loop oil recovery systems that prevent process gas from escaping into the environment.
In many industrial processes, gas inlet volume flows fluctuate. Fixed-speed compressors must use suction throttling or bypass recycle lines to handle excess flow, wasting energy. A VSD system dynamically adjusts the rotor speed to match the real-time gas production rate, saving up to 30% on energy costs by reducing power consumption during low-demand cycles.
Two-stage compression divides the compression process into two distinct phases, with intercooling in between. This configuration lowers the temperature of the gas entering the second stage, reducing overall work. As a result, it improves volumetric efficiency, decreases rotor thermal expansion, and reduces mechanical load on bearings and seals.
Typical maintenance includes changing filters and analyzing lubricants every 2,000 to 4,000 hours of operation. Elastomeric seals and mechanical couplings should be inspected annually. Major bearing overhauls and rotor alignment audits are recommended every 24,000 to 30,000 hours, depending on the severity of the gas handling conditions.
A low-noise industrial screw compressor line, running from 10HP to 100HP, designed to supply clean, high-efficiency compressed air for modern manufacturing environments.
A robust 132kW two-stage compression unit built for heavy industrial and mining applications, delivering continuous output under demanding conditions.
Equipped with a permanent magnet motor and an integrated inverter system, this model matches output to demand to keep operating costs low.
A space-saving 15kW unit that integrates compression, filtration, and dryer modules into one compact, easy-to-install package.
Features dual permanent magnet motors that drive each stage of the rotor independently, maximizing energy efficiency across variable workloads.
Uses a heated purge cycle to minimize purge air loss, ensuring efficient moisture removal and dry compressed air.
An air-cooled refrigerated dryer offering dew point control between 2°C and 10°C, compatible with standard industrial refrigerants.
Designed for compressors rated from 7.5HP to 100HP, this refrigerated dryer removes moisture to protect downstream equipment from corrosion.
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 steady compound annual growth rate as industrial sectors move away from wet-seal fluid systems to minimize ecological contamination.
Explore our full range of technical specifications, dynamic operational guidelines, and industrial products:
For custom engineering and configurations, we also provide technical layouts and drawings for the following systems: