Premium Grade original replacement filtration solutions. Minimizes residual carryover to guarantee absolute downstream pneumatic purity.
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Rugged, heavy-duty constant flow operations designed for standard continuous factory air demands up to 400kw.
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Compact design incorporating oil-cooled PM motor configurations for high-efficiency dynamic performance.
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Advanced thermodynamic efficiency featuring dual rotor series compression to optimize power-to-flow ratios.
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Unified, compact design featuring Permanent Magnet variable speed drivers to lower operating costs.
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Reliable 7.5kw system built with high-torque AC motors designed specifically for continuous workshop operations.
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Integrated hybrid application providing precise control of suction and discharge flow for custom vacuum systems.
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Highly dynamic, variable-frequency dual screw system delivering optimum energy conservation under fluctuating loads.
Learn More >The global demand for high-efficiency air delivery systems has shifted from rudimentary fixed-speed mechanics to intelligent, integrated, and modular air solutions. As industries drive towards carbon neutrality, the reliance on high-carbon, low-efficiency compressed air setups has become unsustainable. Heavy industries, large manufacturing plants, and mobile municipal workforces demand robust power combined with dynamic energy usage metrics.
Our commitment as a leading ODM portable and industrial screw compressor manufacturer is centered on bridging the gap between raw volumetric flow and intelligent variable output. Through our permanent magnet (PM) motors and variable speed drive (VSD) systems, we enable global industrial operators to transition to smart, energy-efficient operational structures.
By coupling dynamic frequency converters directly with Permanent Magnet synchronous motors, our compressors adjust motor speed in real time to match system demand, reducing start-up current spikes and idling consumption.
Dividing the compression ratio across two stages reduces internal leakage losses and improves thermal efficiency. Our design uses a direct-drive front gear setup, running each stage's rotor at optimal pitch-line speed.
Engineered for harsh environments, our systems feature robust IP55 rated motors, dustproof enclosures, and intelligent water/oil separation filtration, delivering stable operation from -15°C to 45°C.
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 enterprise specializing in the development and assembly of twin-screw air compressors, alongside comprehensive air system solutions.
We manufacture a wide range of compressed air systems, including standard fixed-speed, VSD PM variable frequency, two-stage energy-saving configurations, dry-type oil-free screw systems, and specialized vacuum technology. Our components are certified to CE and ISO standards, ensuring reliable performance for heavy-duty industrial and mobile operations.
Requires heavy-duty, portable trailer-mounted screw compressors capable of operating under highly variable pneumatic loads, extreme ambient dust, and high vibrations.
Features space-saving, low-noise stationary cabinets (such as our 4-in-1 integrated units with built-in air dryers and tanks) that supply continuous, dry air directly to tool lines.
Oil-free dry screw designs are critical for pharmaceutical, food processing, electronics assembly, and chemical synthesis, preventing oil contamination in downstream applications.
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 growth trend.
As a global partner in air and vacuum technologies, Shanghai Honest Compressor Co., Ltd. continuously adapts to industrial requirements. Our dynamic PM AC ASD rotary air vacuum pump systems meet the criteria of this growing sector, combining suction and delivery functions in a single energy-efficient frame.
Compact 2-in-1 layout merging the screw air end directly with a robust air receiver tank for simple, space-saving installation.
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High-power two-stage industrial workhorse featuring dynamic PM variable speed drive to maximize output-per-kilowatt.
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Highly efficient single-phase compressor solution designed for locations without standard 3-phase industrial power access.
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Integrated complete air treatment plant containing a twin-screw air end, refrigeration dryer, adsorption dryer, and dual receiver tanks.
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High-capacity 110kw system utilizing two-stage compression and an integrated PM inverter drive, designed for heavy industrial distribution lines.
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A durable, standard-pressure workshop unit offering quiet operations and simple maintenance access for general production.
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Advanced setup using two independent PM motors to drive the first and second stages, optimizing power usage across varying work loads.
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All-in-one system combining a screw air end, refrigerated air dryer, high-precision filters, and an air receiver tank for immediate plug-and-play installation.
Learn More >Conventional fixed-speed compressors operate on a load/unload control cycle. When demand drops, the motor continues running at full speed under no load, consuming about 30-40% of its rated power while producing no air. A Variable Speed Drive (VSD) with a Permanent Magnet (PM) synchronous motor adjusts the rotation speed of the rotors in real-time to match actual downstream air consumption. This eliminates idle energy consumption, limits start-up current spikes, and keeps the operating pressure within a narrow range, saving up to 35-40% in energy compared to traditional fixed-speed units.
Two-stage compression distributes the pressure rise across two steps. By cooling the air between the first and second stages, the compression process moves closer to isothermal compression. This lowers the work required for the second stage, reduces internal pressure differentials, minimizes blow-by leakage across the screw rotors, and increases volumetric efficiency, allowing the system to deliver more free air (FAD) per kilowatt of electrical input.
Our integrated "Four-in-One" configurations combine the compressor, air receiver tank, refrigerated dryer, and inline filters in a single unit. This design reduces space requirements, eliminates external interconnecting piping, and minimizes pressure drops. The pre-installed filtration and drying components also ensure dry, clean air enters downstream lines immediately, protecting pneumatic equipment from moisture and oil carryover.
Shanghai Honest Compressor Co., Ltd. is a British-owned enterprise established in 2004. Our equipment is manufactured to ISO 9001 and CE quality standards. We use high-torque motors with standard IP55 ratings and Class F insulation. Each screw air end undergoes dynamic testing to verify thermal behavior, volumetric efficiency, and low-noise vibration profiles before shipment.