20+ Years
Precision Manufacturing Legacy (Since 2004)
50,000 m²
Smart Shanghai Production Complex
Up to 40%
Energy Savings via PM VFD Drive
50+ Nations
CE & ISO Global Export Acceptance
Engineered Rotary Screw Compressors: High-Performance Showcase (Part I)
Precision-machined twin-screw compressed air units manufactured in Jiading, Shanghai. Built to ISO 1217 Annex C testing benchmarks for heavy-duty industrial automation, packaging lines, and hazardous plant locations.
ODM EOF Oil-Free Dry Screw Compressor | 100% Oil-Free PM VFD Manufacturers, Factory
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ODM IP55/54 55KW 75HP Factory Price Two Stage Industrial Screw Type Air Compressor Machine Factories, Exporters
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OEM Double permanent magnet motor integrated two-stage compression series Supplier, Factory
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OEM Oil Free Water Lubricated Screw Air Compressor 37kW Supplier, Factories
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OEM Hot Sale China Factory High Quality Screw Vacuum Pump Permanent Magnet Frequency Conversion Progressive Pump Manufacturers, Factories
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ODM PM&VSD Oil‑Free Screw Blower Factories, Exporters
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OEM 4-in-1 Explosion-Proof Air Compressor | 7.5-22kW Permanent Magnet Integrated Unit Factory, Exporters
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China 110Kw/150Hp Two-Stage Rotary Screw Air Compressor Permanent Magnetic Variable Frequency 380V Air Cooled Exporter, Exporters
View Technical SpecsThe 11kW (15HP) Rotary Screw Compressor: The Global Workhorse of Modern Manufacturing
In the global compressed air taxonomy, the 11kW (15 horsepower) rotary screw air compressor occupies a vital and strategic nexus. Delivering free air delivery (FAD) typically ranging from 1.10 m³/min to 1.75 m³/min (38.8 to 61.8 CFM) at operating discharge pressures between 7 bar and 13 bar (100 to 188 psig), 11kW systems bridge the critical threshold between small artisanal workshops and continuous, highly automated industrial manufacturing plants.
As industrial facilities transition away from loud, intermittent, and thermally inefficient reciprocating piston compressors, the 11kW twin-screw configuration delivers 100% continuous duty cycle capability, significantly suppressed acoustic emissions (65–68 dB(A)), and near-zero downstream oil contamination. Engineered with precision-ground asymmetric helical rotors, the modern 11kW unit operates as a dedicated thermodynamic powerhouse capable of powering multi-axis CNC machines, laser cutters, pneumatic robotic actuation, automated packaging facilities, and localized process filtration.
- IE4/IE5 Super Premium Permanent Magnet Synchronous Motors (PMSM): Eliminating rotor excitation slip losses, ensuring flat-curve efficiency across 25% to 100% variable operational speeds.
- Direct-Coupled 1:1 Coaxial Drive Mechanics: Eradicating parasitic gearbox frictions, belt tension fatigue, and side-load bearing stresses to maximize mechanical power transfer.
- Intelligent Thermal & VFD Closed-Loop Integration: Precision pressure regulation within ±0.01 MPa (±0.1 bar), eliminating over-pressurization energy waste.
10-Year Lifecycle Cost (LCC) Audit: 11kW Screw Unit
Empirical calculation based on 6,000 running hours/year at $0.14/kWh. Electrical power accounts for the overwhelming majority of your expenditure, demonstrating why China-engineered PM VFD technology delivers unbeatable return on capital.
Procurement Takeaway: Selecting an Honest Compressor 11kW PM VFD system cuts cumulative electricity costs by 20% to 40% compared to legacy fixed-speed units, amortizing the entire machine purchase price in under 18 months of plant operation.
| Performance Parameter | Legacy Fixed Speed (Belt-Driven) | Standard Asynchronous VFD | Honest PM VFD Integrated 11kW |
|---|---|---|---|
| Displacement @ 8 Bar (FAD) | 1.52 m³/min (53.6 CFM) | 1.58 m³/min (55.8 CFM) | 1.68 m³/min (59.3 CFM) +10.5% Yield |
| Motor Efficiency Classification | IE2 / IE3 Standard Induction | IE3 Premium Induction | IE4 / IE5 Super Premium NdFeB PM |
| Turndown Ratio (Capacity Control) | None (100% Load / 0% Unload idling) | 45% – 100% Range | 20% – 100% Seamless Vector Speed |
| Specific Energy Requirement (SER) | 7.2 – 7.8 kW / (m³/min) | 6.8 – 7.2 kW / (m³/min) | 6.1 – 6.4 kW / (m³/min) [GB19153 Grade 1] |
| Motor & Bearing Thermal Dissipation | Standard Air-Cooled Fan, 95°C Rise | Forced Auxiliary Air-Cooling Fan | Integral Oil-Cooled Jacket / 180°C Demagnetization Resistance |
| Starting Current Profile | Direct / Star-Delta Surge (Up to 6x In) | Controlled Soft Start (1.2x In) | Zero Inrush Current (Soft Ramp < 1.0x In) |
| Sound Pressure Level @ 1m | 72 ± 2 dB(A) | 69 ± 2 dB(A) | 64 ± 2 dB(A) (Ultra-Quiet Enclosure) |
Why Global Sourcing Directors Partner with Shanghai Honest Compressor
Rooted in British thermodynamic engineering since early 2004, Shanghai Honest Compressor Co., Ltd. operates a premier 50,000 m² smart manufacturing center in Jiading District, Shanghai. Discover how vertical supply-chain integration delivers peerless technical precision and cost-performance advantages.
Tier-1 Shanghai Industrial Cluster
Located within Jiading's world-class precision automotive and electromechanical manufacturing corridor, our factory leverages direct, localized access to high-grade spheroidal graphite castings, SKF heavy-duty bearings, and Neodymium (NdFeB) rare-earth magnets. This geographical advantage compresses bill-of-materials costs while ensuring stringent quality control across every raw substrate.
Rapid Turnaround & Direct Logistics5-Axis CNC Rotor Milling & Grinding
Rotor clearance precision dictates internal back-leakage, discharge air temperature, and thermodynamic efficiency. Our Shanghai workshop houses German Klingelnberg rotor grinding suites and Japanese Mazak 5-axis machining stations, maintaining micron-level rotor profiles (5:6 male-female lobe symmetry) to deliver stable volumetric performance across 100,000+ operational hours.
Micron-Tolerance Tolerances (±2μm)Full-Load Automated Testing Run-In
Every 11kW compressor undergoes an exhaustive 4-hour closed-loop factory testing protocol in our computerized test bay prior to palletization. Testing monitors thermal equilibrium, full-spectrum Fourier vibration analysis, acoustic signatures at calibrated octave bands, and real-time FAD verification conforming strictly to ISO 1217:2009 Annex C and ISO 8573 standards.
Zero-Defect Export VerificationInside Honest's 11kW Mechanical & Aerodynamic Architecture
An air compressor is an interconnected electro-thermodynamic system. Explore the five critical sub-assemblies engineered into our 11kW permanent magnet variable frequency rotary screw units.
Third-Gen 5:6 Screw Airend
Features asymmetric helical tooth contours with reduced blowout triangle dimensions. Larger rotor diameters run at low rotational speeds (1,400 to 2,800 RPM), decreasing tip-speed shear stress and dramatically minimizing thermal expansion during 24/7 continuous base-load operation.
Oil-Cooled PMSM Motor
Equipped with 38UH Neodymium-Iron-Boron magnets rated for temperature resistance up to 180°C without irreversible flux loss. By utilizing circulating compressor lubricant to cool the motor stator core directly, thermal dissipation is independent of motor speed, preventing low-speed overheating.
Triple-Stage Oil Separation
Integrates tangential centrifugal cyclonic pre-separation, gravitational settling, and a pleated micro-fiber coalescing separator element. Downstream oil residual content is maintained below 2 ppm (≤ 2.5 mg/m³), drastically lengthening desiccant and filter service intervals.
Intelligent IoT Micro-Controller
High-resolution color graphic touch interface offering native multi-lingual support (English, Spanish, Russian, French, Arabic). Out-of-the-box RS485 Modbus RTU interface and optional 4G cloud telemetry enable seamless PLC integration, group sequencing, and proactive filter health alerting.
Technological Megatrends Reshaping the 11kW Compressor Sector
Compressed air systems consume approximately 10% of total industrial electrical energy globally. The global compressor landscape is undergoing a massive paradigm shift toward decarbonization, electrification, and integrated modularity.
1. Adoption of "4-in-1" Integrated Packages
Factory floor space carries an unprecedented premium. Sourcing trends highlight explosive demand for integrated skids uniting an 11kW PM VFD compressor, a refrigerated air dryer (down to +3°C pressure dew point), a 500-liter certified pressure receiver, and dual high-efficiency coalescing line filters on a unified vibration-isolated baseframe. Plug-and-play installation saves up to 60% installation labor and reduces interconnecting piping pressure drops.
2. Stringent Energy Standards: GB 19153 & EU Ecodesign
Regulatory enforcement has rendered low-efficiency machines non-viable. Modern international tenders mandate compliance with minimum specific power ratings equivalent to China GB 19153-2019 Grade 1 energy efficiency or European Lot 31 Ecodesign limits. Honest's 11kW screw platforms exceed Grade 1 thresholds, granting global purchasers qualification for national energy efficiency rebates and carbon credits.
3. Factory-Integrated Waste Heat Recovery (WHR)
Up to 94% of the electrical energy supplied to an 11kW screw compressor is converted into heat within the lubrication cycle and cooling system. Modern export configurations incorporate integrated plate heat exchangers to recover this thermal energy directly into plant domestic hot water or boiler pre-heating loops, unlocking secondary carbon reduction for forward-looking industrial facilities.
Versatile Plant Deployments: High-Impact Use Cases for 11kW Power
Honest Compressor's 11kW models serve as dedicated process air workhorses across hundreds of mission-critical manufacturing sectors. Here is how specialized industries utilize this exact power envelope.
High-Precision Fiber Laser Cutting (16 Bar)
Modern sheet-metal fabricators utilizing 3kW to 12kW fiber laser cutters are rapidly replacing expensive bottled nitrogen or liquid oxygen assist gases with high-pressure dry shop air. Our specialized 11kW 16-bar integrated laser compressor packages deliver continuous, moisture-free, oil-free compressed air, enabling burr-free edge cuts on carbon steel and aluminum plates with up to 75% gas cost reduction.
Auxiliary Gas ReplacementMulti-Axis CNC Machining & Robotic Automation
In metal cutting and CNC machining centers, steady compressed air is critical for pneumatic tool changers, spindle air-purging seals, chip blow-off nozzles, and pneumatic workholding fixtures. An 11kW PM VFD compressor maintains strict ±0.01 MPa pressure stability during intermittent tool cycling, eliminating spindle micro-contamination and extending tooling life.
Spindle Protection & ToolingAutomated Food Packaging & Pharmaceutical Bottling
Pneumatic cylinder pick-and-place lines, form-fill-seal machines, and nitrogen generation membranes demand ISO 8573-1 Class 1:4:1 or Class 0 certified air. Our oil-free dry type and multi-filtered 11kW configurations ensure zero hydrocarbons interact with primary food contact surfaces or pharmaceutical blisters, guaranteeing product safety and hygiene audit compliance.
ISO 8573 Contamination ShieldGlobal Sourcing Directors' Checklist for Importing 11kW Compressors
When sourcing industrial air compressors from Chinese manufacturers, EPC contractors and procurement managers must verify five pivotal mechanical, electrical, and commercial parameters to mitigate technical risk and guarantee painless site commissioning.
1. Electrical Grid & Dual-Frequency Versatility
Global power grids diverge significantly across continents: 380V/50Hz (Europe/Asia), 400V/50Hz (UK/Oceania), 460V/60Hz (North America), and 220V/60Hz (Latin America/Saudi Arabia). Honest Compressor custom-winds permanent magnet motors and programs high-performance variable frequency drives with wide input tolerance (±10%), ensuring reliable startup across erratic industrial grids without motor overheating.
2. Pressure Vessel Safety & Legal Certifications
Compressor air receivers and oil separator sumps are pressurized vessels subject to strict legal clearance. All Honest Compressor export platforms bear official CE-Machinery (2006/42/EC), CE-Pressure Equipment Directive (PED 2014/68/EU), and optional ASME Section VIII Division 1 stamping, accompanied by full third-party hydrostatic inspection mill test reports.
3. OEM/ODM Private Labeling & Export Packaging
For machinery distributors, we provide complete custom branding packages: bespoke RAL powder-coat color schemes, personalized digital controller firmware interfaces, localized brand badging, and standardized fumigated export plywood crating with internal vapor corrosion inhibitor (VCI) foil barrier bags designed to endure up to 60 days of ocean freight transit.
Industrial Rotary Screw, Blowers & Vacuum Portfolio (Part II)
Explore Honest Compressor's broad engineering spectrum: Two-stage energy champions, Class 0 water-lubricated oil-free packages, progressive vacuum pumps, and specialized industrial variable speed compressors.
China Oil-Free Water Lubricated Screw Air Compressor EOWV-45A/W Suppliers, Exporter
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OEM VFD screw air compressor 0.7-1.25mpa Energy Saving up to 30% Manufacturers, Exporter
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China Honest Compressor -EOF series Oil-Free Dry Type Screw Compressor | 100% Oil-Free PM VFD Manufacturer, Exporter
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OEM Industrial Oil Free Vsd Screw Air Blower /Vacuum Pump With Inverter and Pm Motor Manufacturer, Exporter
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OEM 22kW 30HP Variable Speed Rotary Screw Compressor Factories, Exporter
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ODM Oil-cooled two-stage permanent magnet variable frequency screw air compressor Manufacturers, Suppliers
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OEM Double screw air compressor with inverter and VSDPM motor for energy saving Manufacturer, Exporter
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OEM Industrial Screw Vacuum Pumps – Oil-Injected (0.35 mbar) & Oil-Free (20–80 kPa) Series, 5.5–110 kW Supplier, Exporter
View Technical SpecsFrequently Asked Questions: Sourcing & Engineering 11kW Compressors
Definitive engineering and procurement insights addressing the exact technical considerations raised by plant engineers, mechanical consultants, and global machinery importers.
What is the actual Free Air Delivery (FAD) output of an 11kW screw compressor?
At standard atmospheric conditions (20°C, 1 bar, 0% RH per ISO 1217 Annex C), an Honest Compressor 11kW (15HP) rotary screw unit delivers approximately 1.68 m³/min (59.3 CFM) at 8 bar (116 psig), 1.52 m³/min (53.7 CFM) at 10 bar (145 psig), and 1.15 m³/min (40.6 CFM) at 16 bar (232 psig) for laser cutting packages. Variable speed control permits modulating this flow down to ~0.35 m³/min seamlessly according to real-time plant load.
How does an 11kW Permanent Magnet (PM) motor compare to a standard Induction motor?
A Permanent Magnet Synchronous Motor (PMSM) utilizes high-coercivity NdFeB permanent magnets embedded in the rotor core, eliminating the electrical excitation currents and copper rotor $I^2R$ heat losses inherent in asynchronous squirrel-cage induction motors. This maintains ultra-high IE4 / IE5 efficiency even at low rotational speeds (30% load), whereas standard induction motors suffer precipitous efficiency and power-factor drops under partial load.
What electrical sizing (breaker and cable) is required for an 11kW installation?
For a standard 380V/3-Phase/50Hz installation, full load current (FLA) is roughly 22 to 24 Amperes. Because our 11kW units feature integrated PM VFD vector drives with soft-ramp acceleration, starting inrush current is limited to ≤ 1.0x FLA (no star-delta surges). We recommend a 32A or 40A D-curve miniature or molded-case circuit breaker (MCCB) and copper supply cables of at least $6.0\text{ mm}^2$ to $10.0\text{ mm}^2$ depending on cable run length.
What is the expected maintenance schedule and oil consumption?
Initial commissioning requires an oil filter replacement and fluid inspection at 500 operating hours. Routine preventive maintenance cycles occur at 2,500 to 3,000 hour intervals, comprising replacement of the spin-on air intake filter, spin-on spin-glass oil filter, and synthetic screw lubricating fluid. The coalescing air-oil separator cartridge carries an extended service life of 4,000 to 6,000 running hours under standard ambient temperature conditions.
Can Honest Compressor build machines tailored to custom voltages and climates?
Yes. As an authentic Shanghai OEM/ODM manufacturer, we configure dual-wound motors and specialized inverters for 220V/60Hz, 380V/60Hz, 440V/60Hz, 460V/60Hz, or 400V/50Hz. For high-ambient environments (Middle East, Southeast Asia), we equip our machines with oversized aluminum bar-plate heat exchangers, tropicalized motor windings, and high-ambient synthetic polyolester lubricants rated up to 50°C (122°F).
When should a buyer select an Oil-Free vs. Oil-Injected 11kW screw compressor?
Standard oil-injected 11kW models are ideal for general industrial tools, fabrication, and machining where downstream coalescing filtration can easily achieve ISO 8573-1 Class 1 or 2 oil purity (≤0.01 mg/m³). However, if compressed air directly contacts food consumables, pharmaceutical formulations, aseptic medical vials, or ultra-sensitive semiconductor substrates, an Oil-Free Dry Type or Water-Lubricated Screw (Class 0) is legally mandatory to prevent hydrocarbon risk.
What are the advantages of a "4-in-1" tank-mounted 11kW unit over separate components?
A 4-in-1 integrated skid combines the 11kW compressor, a 300L or 500L air tank, a refrigerated air dryer, and multi-stage line filters into a single compact housing. Advantages include 50% footprint reduction, elimination of external interconnecting copper piping and associated pressure drops (saving 0.2 to 0.4 bar), single-point electrical hookup, and complete factory validation before export delivery.
What is the export warranty coverage and spare parts availability?
Honest Compressor provides an unconditional 24-month warranty on the rotary screw airend and a 12-month complete machine warranty. We maintain a centralized global spare parts depot in Shanghai with guaranteed 48-hour dispatch for consumable filter kits, pressure sensors, solenoid valves, and inverter modules via DHL/FedEx International Priority.
Partner Directly with Shanghai's Premier Screw Compressor Manufacturer
Whether you require a standard 11kW PM VFD rotary unit for a plant upgrade, specialized 16-bar laser cutting air systems, or an OEM private label distribution agreement, our Shanghai application engineering team provides bespoke sizing audits, 3D CAD envelope drawings, and factory direct quotations within 24 hours.
