Built with high protective standards of IP54/IP55, this twin-stage air compressor provides heavy-duty continuous airflow for extreme ambient conditions.
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Features permanent magnet motor tech and oil cooling paths. Experience superior dynamic balancing, minimal vibration, and optimized energy footprints.
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Precision filtration elements engineered to reduce residual oil carryover to less than 3ppm. Essential for ensuring downstream air purity and equipment longevity.
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An integrated station combining a 22kw rotary compressor, a refrigerant dryer, an adsorption dryer, and a high-volume receiver tank for moisture-sensitive systems.
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Direct-drive mechanism paired with a permanent magnet motor and vector inverter. Delivers optimal flow rate modulation across pressure demands from 7 to 13bar.
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Robust field compressor coupled with tier-rated Cummins, Yuchai, or Weichai diesel engines, designed for remote mining, construction, and backup industrial operations.
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Specially formulated oil-cooling circuits maintain stable internal temperatures, eliminating thermal expansion stress on the rotary profiles for long lifespans.
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Compact footprint configuration with built-in thermal dryers. Ideal for small to mid-sized workshops demanding constant pressure and high energy efficiency.
Technical SpecificationsIn the modern landscape of positive-displacement fluid machinery, the scroll compressor has emerged as a cornerstone of performance, quiet operation, and reliability. Utilizing two interleaving spiral-shaped scrolls—one stationary and one orbiting eccentrically without rotation—these systems compress gases through continuous, crescent-shaped volume reduction. As leading OEM scroll compressor manufacturers and exporters, our engineering philosophy is built on understanding the complex thermodynamics of scroll geometries and delivering systems that meet the strict requirements of today's industrial sectors.
Unlike reciprocating piston compressors, which rely on alternating cycles and discrete intake/exhaust valves, the scroll compression process is continuous. This structural design offers several mechanical advantages: there are no clearance volumes that limit volumetric efficiency, gas leakage is minimized through continuous line contacts, and the lack of reciprocating components reduces vibration and mechanical wear. As global regulations put pressure on energy efficiency and carbon emissions, scroll compressors integrated with Permanent Magnet Variable Frequency (VSD) motors have become the primary choice for clean, reliable air systems.
From a global market perspective, the demand for oil-free scroll configurations is growing rapidly in fields like medical diagnostic equipment, food processing, electronics manufacturing, and laboratory automation. In these environments, even trace amounts of oil aerosols can cause system failures, contaminate samples, or ruin product batches. Consequently, the industry is transitioning to Class 0 oil-free scroll compressors. These machines use precision-machined scroll wraps and specialized synthetic seals instead of oil lubrication inside the compression chamber. This guarantees clean air output while maintaining excellent wear resistance.
Integrates the main compressor unit, refrigeration air dryer, high-efficiency oil/water separators, and a heavy-duty receiver tank in one compact enclosure.
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Designed for critical environments demanding zero oil carryover. Engineered with advanced dry running profiles and acoustic dampening panels.
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A large-scale process air powerhouse that delivers ultra-clean volumetric airflow for major manufacturing plants, electronics, and pharmaceuticals.
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Splits the pressure ratio across two distinct stages to maximize thermodynamic efficiency and lower specific power consumption.
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Combines the compressor and an air storage tank in a space-saving design, providing plug-and-play installation for light industrial shops.
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Features complete pre-piping and wiring, an integrated air tank, and a refrigeration dryer, all controlled through a single PLC screen.
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Designed for heavy industrial environments, this system balances work loads between two air ends, lowering energy consumption by up to 15%.
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Engineered for high-pressure industrial systems. Utilizes variable speed control to match precise flow demands and minimize power drops.
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A reliable, continuous-duty workhorse featuring direct-drive coupling and simple maintenance requirements for standard factory air.
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Highly integrated, explosion-proof design. Built with premium accessories, an ultra-quiet canopy, and full ISO/CE certifications for reliable global operation.
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Model XD-8A. Free air delivery of 0.8-1.2 m3/min at 7-12bar. Features automatic PLC controls, IP55 direct motor drive, and quiet operation (<63dBA).
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Features a split-casing design housing both the primary and secondary stage rotors, allowing each to rotate at its optimal line speed.
See more products >Selecting the right air compression technology requires analyzing thermodynamic metrics, duty cycles, sound limits, and air quality standards. The table below highlights key performance differences across these technologies, showing why scroll designs are highly valued for precision applications.
| Performance Indicator | Oil-Free Scroll Compressors | Rotary Screw Compressors | Reciprocating Piston Compressors |
|---|---|---|---|
| Discharge Pressure Range | 7 - 10 Bar (100 - 145 PSI) | 7 - 16 Bar (100 - 232 PSI) | 1 - 400+ Bar (High Pressure Specialty) |
| Volumetric Efficiency | 95% - 98% (Virtually zero clearance volume) | 85% - 92% (Governed by internal rotor leakage) | 70% - 80% (Limited by clearance spaces) |
| Acoustic Output (dB) | 49 - 59 dBA (Ultra quiet operation) | 62 - 75 dBA (Requires acoustic canopy) | 80 - 95+ dBA (High noise levels) |
| Oil Carryover Class | Class 0 Certified (ISO 8573-1) | Class 1-3 (Requires downstream coalescing) | Class 3-4 (High aerosol carryover) |
| Continuous Duty Rating | 100% Continuous Duty Cycle | 100% Continuous Duty Cycle | 50% - 60% (Requires start/stop intervals) |
| Maintenance Intervals | 10,000 hrs (Tip seal replacement) | 4,000 hrs (Fluid & separator elements) | 500 - 1,000 hrs (Valves & piston rings) |
A key engineering feature of high-quality scroll machinery is radial and axial compliance. Compliance allows the scroll wraps to separate slightly in the presence of liquid slugs or debris, preventing mechanical failure. By using centrifugal force to seal the scrolls radially, the system creates a tight contact seal that minimizes gas leakage while reducing friction. This self-wearing capability means the compressor's volumetric efficiency often improves over the first hundred operating hours as the mating scroll profiles match.
Integrating Variable Speed Drive (VSD) controllers with Permanent Magnet (PM) synchronous motors is a major development in modern compression. Traditional fixed-speed compressors run at full speed regardless of actual air demand, using blow-off valves or modulation systems that waste energy. VSD PM scroll systems adjust motor speeds in real time to match system demand. PM motors maintain high efficiency even at low rotational speeds, helping facilities reduce energy use by 30% to 50% under varying load conditions.
Shanghai Honest Compressor Co., Ltd. is a British-owned enterprise founded in early 2004. Located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China, we have grown into a leading manufacturer of twin-screw and high-precision scroll air compressors. We provide complete air system solutions to clients worldwide.
Our facility is equipped with advanced CNC profile grinders, automated scroll wrap coordinate measuring machines (CMM), and vacuum testing environments. Being located in Jiading District, Shanghai, gives us access to a robust industrial supply chain. We source high-grade raw castings, copper motors, and precision electronics locally. At the same time, we have direct logistics connections to the Port of Shanghai, allowing us to export machinery efficiently to Europe, North America, Southeast Asia, and the Middle East.
Beyond scroll systems, our manufacturing range includes piston air compressors (low, medium, and high-pressure configurations), gas separation equipment, refrigerant compressors, cold dryers, ceramic membrane filtration systems, and specialized consumables. This diverse capability allows us to design and deliver complete, optimized air systems from a single source.
Production facilities, CMM measurement systems, and shipping docks at Shanghai Honest Compressor Co., Ltd.
Different regions and industries have unique requirements for air compression systems. Below is an overview of key application areas and their technical demands:
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 (CAGR).
This growth highlights a wider trend in manufacturing: the transition to oil-free, dry-running mechanical systems. As industries shift away from oil-lubricated equipment to avoid processing risks, both dry vacuum pumps and oil-free scroll compressors are seeing increased adoption. Our engineering team participates in international trade shows, exhibiting products that help global manufacturers transition to reliable, oil-free systems.
Oil-free scroll compressors are ideal for lower-flow applications (typically under 22kW) where air purity is critical. They contain no oil in the compression chamber, ensuring 100% oil-free air (ISO 8573-1 Class 0) without needing multi-stage downstream filtration. In addition, scroll units operate at much lower noise levels (often below 55 dBA) and have fewer moving parts, which simplifies maintenance.
VSD PM systems adjust the motor's rotational speed in real time to match the facility's air demand. Unlike fixed-speed motors that run at maximum RPM regardless of usage, VSD technology reduces speed during low demand, lowering power draw. Permanent magnet motors also maintain high torque and efficiency across their entire speed range, reducing energy costs by up to 50% compared to standard fixed-speed systems.
Dry scroll systems require minimal routine maintenance because they don't use lubricating oils. The primary maintenance task is replacing the internal tip seals, which prevent air from leaking between the scroll wraps. Depending on operating conditions and environment, tip seals are typically replaced every 8,000 to 10,000 hours. In addition, inlet air filters should be cleaned or replaced regularly to prevent abrasive dust from entering the scroll assembly.
ISO 8573-1 Class 0 is the most stringent air quality standard, certifying that air contains zero oil aerosols, vapors, or liquids. In pharmaceutical manufacturing and medical diagnostics, oil contamination can contaminate drugs, skew laboratory tests, or endanger patient safety. Class 0 scroll systems protect product quality and keep facilities compliant with international safety and environmental regulations.
Yes. A two-stage compressor splits the total compression ratio between two separate rotor sets. An interstage cooling system lowers the temperature of the air before it enters the second stage. This intercooling reduces the work required for the second stage, bringing the process closer to isothermal compression and saving up to 15% in energy compared to single-stage units of similar capacity.
Our OEM services include customizing pressure settings, motor voltages, and frequency profiles (such as 50Hz or 60Hz configurations). We also design custom acoustic enclosures, supply built-in air dryers and filtration systems, and customize PLC controller screens. These options help buyers integrate our compressors into their proprietary systems or regional distribution lines.
Designed for heavy-duty industrial applications requiring constant base-load air output, with capacity options up to 400kw.
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An oil-free screw blower designed for wastewater aeration, pneumatic conveying, and dry vacuum processing, featuring VSD control.
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A horizontal two-stage compressor built to deliver steady air supply under fluctuating industrial loads while reducing overall energy use.
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Uses micro-heat regeneration technology to dry compressed air to a low pressure dew point, preventing downstream condensation.
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A durable belt-drive screw compressor designed for easy maintenance access, delivering continuous airflow for regional fabricators.
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A compact 7.5kw fixed-speed screw compressor that provides reliable air delivery for light manufacturing and repair workshops.
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An all-in-one system featuring silent operation and explosion-proof electricals, suitable for chemical facilities and paint lines.
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Manufactured with dry compression chambers to guarantee oil-free output for food, medical, and packaging lines.
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