China Oil Flood Air Compressor Factories & Exporters

High-Efficiency Industrial Rotary Screw Systems & Air Power Engineering Solutions

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Featured Oil-Flooded Compressors & System Elements

OEM Oil Cooled Screw Air Compressor 55kw 75hp
OEM Oil Cooled Screw Air Compressor 55kw 75hp Industrial Air Compressor Rotary Air Compressor Supplier, Exporters

Robust industrial rotary screw design featuring high-efficiency cooling, direct drive coupling, and an intelligent microprocessor controller.

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OEM Oil-cooled two-stage permanent magnet screw air compressor
OEM Oil-cooled two-stage permanent magnet variable frequency screw air compressor Manufacturers, Suppliers

Advanced permanent magnet synchronous motor technology combined with two-stage compression stages for ultimate electrical energy savings.

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China EGV-132A-140 Oil-Free Permanent Magnet VFD Screw Blower
China EGV-132A-140 Oil-Free Permanent Magnet VFD Screw Blower Supplier, Suppliers

Clean air delivery systems featuring a specialized direct-drive PM motor design, optimized for high-volume wastewater aeration and industrial processing.

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China All In One Silent Explosion Proof Industrial Air Compressor
China All In One Slient Explosion Proof Industrial Air Compressor Energy Saving Screw Air Compressor 4 in1 Suppliers, Factories

Integrated explosion-proof design incorporating air drying and filtration systems. High safety ratings for chemical, oil & gas, and mining applications.

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China Double permanent magnet motor integrated two-stage compression series
China Double permanent magnet motor integrated two-stage compression series Manufacturers, Exporter

Premium double PM motor configuration allows decoupled speed optimization for stage-1 and stage-2 rotors, delivering class-leading performance.

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China AC Power Low Pressure Screw Air Compressor
China AC Power 0.3mpa to 0.5mpa 3bar -5bar Low Pressure Screw Air Compressor for Industrial Electrical Factory, Exporter

Specifically engineered for low-pressure applications, avoiding throttling losses to maximize flow efficiency for textiles, glass, and packaging plants.

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China Horizontal two-stage pressure screw air compressor
China Horizontal two-stage pressure screw air compressor Two Stage Screw Air Compressor Electric Screw Air Compressor Price Suppliers, Exporters

Heavy-duty structural alignment featuring interstage cooling that minimizes compression work, bringing excellent reliability and lowest operation cost.

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China 15kw 20hp Air-compressors Screw Rotary Air Compressor
China 15kw 20hp Air-compressors Screw Rotary Air Compressor / industrial stationary rotary screw air compressor Exporter, Exporters

Stationary small-to-medium manufacturing workhorse. Delivers continuous 24/7 duty cycle compressed air with low acoustic impact and small footprint.

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Strategic Sourcing Framework

Navigating Global Sourcing for Oil-Flooded Rotary Screw Compressors

In modern manufacturing, compressed air is often referred to as the "fourth utility." For global enterprises, selecting an industrial compressed air partner requires balancing capital expenditures (CAPEX) with long-term operational costs (OPEX). Oil-flooded (also referred to as oil-injected) rotary screw air compressors are the workhorses of this infrastructure, supplying robust, continuous air power to heavy industries.

75%
OPEX is Energy Cost
IE4/IE5
Motor Efficiency Ratings
ISO 8573-1
Air Purity Standards
< 3 ppm
Oil Carryover Level

Total Cost of Ownership (TCO) Analysis

Industrial procurement managers recognize that the purchase price of an oil-flooded compressor represents less than 20% of its lifecycle cost. Energy consumption accounts for up to 75% of the total cost, while routine maintenance and spare parts account for the rest. Implementing high-efficiency technologies—such as Permanent Magnet Variable Frequency Drives (PM VFD) and Two-Stage Compression—can reduce specific power consumption (SPC) significantly, yielding quick amortization of the initial investment.

Key Technical Parameters to Evaluate:

  • Specific Power Consumption (kW/m³/min): The gold standard for measuring efficiency. Lower values indicate more air output per unit of electricity.
  • Airend Profile: Look for asymmetric 5:6 rotor profiles that maximize sealing lines and minimize backflow leakage.
  • Motor Efficiency Class: Premium configurations utilize IE4 or ultra-premium IE5 permanent magnet synchronous motors, maintaining high efficiency even during partial load operation.
  • Oil Separation System: Triple-stage separation vessels that limit residual oil carryover to less than 3 ppm, protecting downstream air drying and filtration equipment.
China Factory 4.0

Supply Chain Resilience, Quality Control, and Manufacturing Efficiency

China's manufacturing sector has transitioned from cost-focused assembly to high-precision Industry 4.0 smart manufacturing. The air compressor ecosystem benefits from deep vertical integration, grouping together motor manufacturers, pressure vessel certified shops, CNC machining centers, and automated assembly test facilities in close geographic proximity.

Precision Machining

State-of-the-art German and Japanese rotor grinding machines ensure tolerances within single-digit micrometers, which directly reduces internal compression losses.

Fully Automated Assembly

Automated alignment systems ensure precise air-end to motor coupling, minimizing shaft vibrations and dramatically extending bearing wear life.

100% Load Testing

Every machine undergoes factory testing to log performance parameters like volumetric efficiency, vibration levels, and heat distribution before shipping.

For global procurement agencies, this cluster effect translates to shorter lead times, custom engineering options, and highly competitive pricing. Leading exporters like Shanghai Honest Compressor Co., Ltd. leverage these strengths to provide tailored air systems for markets worldwide, backed by robust logistics networks.

British-Owned Manufacturing Heritage

About Shanghai Honest Compressor Co., Ltd.

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 the design, development, and production of twin-screw air compressors in China. As an international air system solution supplier, our product catalog spans a broad spectrum: from piston compressors (low, medium, and high pressure; oil-free options) to comprehensive screw air compressor systems ranging from 3kW to 480kW.

We also provide air treatment systems, including gas separation equipment, refrigerant dryers, desiccant dryers, inline filters, ceramic membrane filtration systems, and consumable spare parts. Our plant is ISO and CE certified, serving as a trusted OEM supplier to multiple world-renowned industrial brands.

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Shanghai Honest Factory Floor Production Process Quality Inspection Warehouse Storage Rotor Assembly Compressor testing area Final Product Packing
Original Product Series

High Quality Equipment & Compression Engines

Four in One Screw Air Compressor
Four in One 7.5KW 11KW 15KW 22KW Screw Air Compressor

Features space-saving integrated layout including dryer, filtration pack, and receiver tank.

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Low Noise Dry Type Oil Free Screw Air Compressor
Low Noise Dry Type Oil Free Screw Air Compressor

Designed for critical applications in food, pharmaceutical, and electronic sectors requiring 100% clean air.

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280kw Low Noise Dry Type Oil Free Screw Air Compressor
280kw Low Noise Dry Type Oil Free Screw Air Compressor

High capacity dry compression engine featuring direct cooling lines and high-performance control systems.

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Two-Stage Rotary Screw Air Compressor
110Kw/150Hp Two-Stage Rotary Screw Air Compressor

Optimized stage compression ratio reducing operational cost while providing high volume output.

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Two In One Screw Compressor
Two In One 7.5kw 10HP AC Power Screw Compressor

Compact dual configuration for localized workshop machinery requiring steady pneumatic pressure.

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Four In One 7.5kw Screw Compressor
Four In One 7.5kw 10HP AC Power Screw Compressor

Highly integrated assembly system combining drying, filtration, pressure containment, and rotary generation.

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Two-stage 132kw high power Energy-Saving Screw
Two-stage 132kw high power Energy-Saving Screw Compressor

Heavy duty system featuring dual-stage rotor architecture, oil-injection thermal optimization, and IE4 VFD control.

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VFD PM Two Stage Screw Air Compressor
VFD PM Two Stage Screw Air Compressor 315kw 1.3Mpa

High-power flagship model providing outstanding cubic flow rates while minimizing power grid harmonics.

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7.5kw Fixed Speed Screw Compressor
7.5kw 10HP AC Power Screw Compressor Fixed Speed

Standard fixed-speed heavy-duty belt or direct drive air compressor for stable base load requirements.

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All In One Silent Industrial Air Compressor 7.5kw
All In One Slient Industrial Air Compressor 7.5kw

Integrated explosion-proof screw system. Energy-saving, ultra-silent assembly using premium global components.

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7.5kw 10hp Air-compressors Screw Rotary
7.5kw 10hp Air-compressors Screw Rotary Air Compressor

Model XD-8A, direct driven with elastic coupling, automatic PLC controller, IP55 enclosure, low noise levels.

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Energy Saving Air Cooling Screw Compressor
Energy Saving Air Cooling Screw Compressor Two Stage

Two-stage compression featuring a unified casing design for optimal linear rotor speeds and minimal pressure drop.

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Innovation & Future Roadmap

The Evolution of Oil-Flooded Compression Technology

The core process of oil-flooded screw compressors involves injecting synthetic or semi-synthetic lubricants directly into the compression chamber. This serves three vital thermodynamic functions: cooling the heat of compression to achieve near-isothermal efficiency, sealing the fine tolerances between the rotors, and lubricating the mechanical interfaces.

Next-Gen Smart Compressors

Modern system designs combine permanent magnet technology with dual-stage compression and IoT connectivity. These innovations allow operators to track performance in real-time, reducing downtime and optimizing energy consumption across industrial operations.

Two-Stage Airend Systems

Dividing the compression ratio into two stages lowers the pressure difference across each stage, reducing internal blow-by leakage and increasing flow capacity per unit of input energy.

VSD PM Synchronous Motors

Unlike induction motors, Permanent Magnet (PM) synchronous motors maintain peak efficiency even at partial loads, adapting to varying air demand cycles without wasting energy.

Smart IoT Telemetry

Embedded sensors track system diagnostics, discharge temperatures, and pressure variances, enabling predictive maintenance that prevents unscheduled outages.

As industries pursue decarbonization, waste heat recovery systems are becoming standard features. Over 90% of the electrical energy supplied to a compressor is converted into heat. Integrating heat exchangers allows facilities to capture this thermal energy, routing it to pre-heat boiler feed water or support HVAC heating loops.

Industrial Applications

Macro Solutions for Diverse Operational Sectors

Different manufacturing sectors require specific pressure, flow, and air purity configurations. Tailoring compressed air setups to these requirements prevents issues like pressure drops, pipeline corrosion, and premature equipment wear.

Heavy Industry & Mining

Requires heavy-duty, particulate-resistant air systems. Large displacement, medium pressure (7-10 bar) oil-flooded screw compressors are ideal for powering pneumatic rock drills, material transport lines, and blast-hole operations.

Automotive & Automation

Demands consistent, clean, and dry air. Micro-dryers and multi-stage filtration packages are coupled with VFD compressors to handle variable assembly line loads and paint shop requirements.

High-Pressure Laser Cutting

Modern fiber laser cutters require high pressure (16 to 20+ bar) nitrogen or clean air to clear molten slag. Integrated 20 bar screw compressor assemblies provide a reliable, cost-effective alternative to bottled gases.

Global Standards & Field Support

Compliance, Certification, and Aftersales Support

Operating internationally requires strict adherence to regional safety, environmental, and electrical standards. To ensure trouble-free customs clearance and safe operations, industrial air compressors must meet various international regulations.

Key International Compliance Systems:

  1. Pressure Vessel Directives (ASME & CE-PED): Compressed air receiver tanks must conform to ASME Section VIII in North America or PED 2014/68/EU guidelines in European markets.
  2. Electrical Systems (UL/CSA & CE): Control cabinets, VFD systems, and motors must carry UL/cUL certifications for North America or CE marks indicating compliance with EU low-voltage directives.
  3. Quality Management (ISO 9001 & ISO 1217): Manufacturing plants must maintain ISO 9001 standards, and testing procedures should follow ISO 1217 rules to guarantee accurate flow and power ratings.

Beyond engineering, reliable global operations depend on rapid spare parts access. Leading manufacturers establish global distribution networks, stocked with consumable parts like spin-on oil filters, air filter cartridges, and high-efficiency separator elements. This ensures operators can perform scheduled maintenance quickly, minimizing unscheduled downtime.

Engineered Performance Products

High-Efficiency VFD & Multi-Stage Compression Systems

China 37kw 50HP Two Stage VFD PM series
China 37kw 50HP Two Stage VFD PM series Two-stage Compression Screw Air Compressor Manufacturers, Suppliers

Designed for medium-scale industrial plants. Features two-stage screw rotation and an oil-cooled PM motor configuration.

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OEM 132kw Two-Stage Compression High Efficiency Variable Speed
OEM 132kw Two-Stage Compression High Efficiency Variable Speed Screw Air Compressor Supplier, Exporters

A heavy-duty industrial workhorse designed to handle large-scale pneumatic grids with maximum efficiency.

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ODM 20bar pressure Screw Air Compressor for laser cutting
ODM 20bar pressure Screw Air Compressor for laser cutting machine Factories, Exporters

Provides steady high-pressure clean air output, helping metal fabricators cut steel with clean edges.

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China 110kw Two Stage Pm Inverter Type Electric Drive Air Compressor
China 110kw Two Stage Pm Inverter Type Electric Drive Air Compressor 8bar Screw Air Compressor Suppliers, Factory

Features low harmonic distortion, stable pressure control, and a durable air-end for heavy manufacturing operations.

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ODM Fixed Speed Screw Air Compressor Industrial Air Compressor
ODM Fixed Speed Screw Air Compressor Industrial Air Compressor From 7.5kw To 400kw AC Power Screw Compressor Supplier, Suppliers

A dependable, simple base-load system offering continuous operation and straightforward maintenance routines.

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ODM Double screw air compressor with inverter and VSDPM motor
ODM Double screw air compressor with inverter and VSDPM motor for energy saving Manufacturers, Suppliers

Advanced permanent magnet synchronous drive with high torque capability, lowering energy waste during low air demand.

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ODM Micro Heat Regeneration Desiccant Dryer
ODM Micro Heat Regeneration Desiccant Compressed Air Dryer For Compressed Air Factory, Factories

Maintains ultra-low dew points for moisture-sensitive pneumatic control processes and powder coating plants.

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Exhibition & News

Events, Exhibitions, and Market Trends

Industrial Expo Booth

Global Industry Events & Trade Shows

Shanghai Honest Compressor Co., Ltd. regularly participates in major industrial manufacturing expos, showcasing the latest oil-flooded screw designs and high-pressure laser cutting compressor packages.

Dry Vacuum Pump Market Size, Growth, Trends and Report 2034

According to recent 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 stable compound growth. Clean vacuum systems are seeing increased demand alongside high-efficiency screw technologies in chemical and semiconductor production lines.

Information Gain & FAQs

Technical Q&A: Industrial Screw Air Compressors

Why should I choose two-stage compression over single-stage in oil-flooded screw compressors?
Two-stage compression divides the compression process into two distinct parts. By cooling the air between stages, the system reduces the work required for the second stage. This inter-stage cooling lowers the compression ratio across each rotor set, reducing internal volumetric blow-by leakage and saving up to 15% in electrical energy compared to equivalent single-stage systems.
How does a permanent magnet variable frequency drive (PM VFD) save energy?
Conventional fixed-speed compressors operate on load/unload cycles. When demand drops, the compressor continues running un-loaded, consuming up to 30-40% of its full load power without producing air. A PM VFD system uses a high-efficiency motor that slows down or speeds up to precisely match real-time air consumption. This eliminates un-loaded run time, maintains stable pressure, and significantly reduces energy bills.
What residual oil level can be expected from modern oil-flooded screw systems?
Standard high-quality oil-flooded screw compressors feature multi-stage oil separator vessels that use mechanical impingement and coalescing filter elements. This configuration typically reduces residual oil carryover to less than 3 ppm (parts per million). Adding inline coalescing micro-filters and carbon adsorbers can lower oil content further, meeting Class 1 air purity standards (ISO 8573-1) for sensitive downstream systems.
What is the recommended maintenance schedule for oil-injected rotary screw compressors?
Routine maintenance is key to long air-end lifespans. Typically, air inlet filter cartridges are cleaned or replaced every 2,000 operating hours. Oil filter elements and separation cartridges are replaced every 4,000 hours, depending on operating environment dust levels. High-quality synthetic lubricants should be changed every 4,000 to 8,000 hours, and regular oil analysis is recommended to monitor wear metals and acidity.
How does an integrated 4-in-1 compressor system benefit smaller workshops?
An integrated 4-in-1 system combines the screw air compressor, a refrigerant air dryer, inline particulate/coalescing filters, and a certified receiver tank into a single, compact unit. This pre-piped configuration saves installation space, cuts setup costs, and ensures dry, clean air is delivered right from the start.