Premium oil cooling scroll system designed for low-noise operating environments, providing highly reliable variable frequency gas output control.
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Compact design, optimized for single-phase 220V 50Hz operations. Delivers industrial-grade efficiency using permanent magnet motors to light manufacturing facilities.
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High-torque engineering featuring advanced ASD rotary vacuum components, customized for heavy industrial suction and high volume airflow.
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All-in-one air system integration that features a 22kw screw rotary base, complete with high-efficiency refrigerated and adsorption air dryers, and storage tank.
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Engineered for long life cycles and continuous 24/7 industrial duty. Traditional fixed-speed operation featuring optimized cooling and heavy stator coil winds.
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Moisture control systems designed to maintain low pressure dew points across medium and large flow rates (7.5HP to 100HP output ranges).
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Compact footprint incorporating filtration, dryer, air receiver, and screw compressor to save up to 60% of floor space compared to split modules.
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Ultra-efficient two-stage screw design powered by variable speed permanent magnet motor, minimizing internal compression leakage and thermic losses.
Learn More >In modern industrial facilities, compressed air is often referred to as the "fifth utility." Historically, factory operations relied on fixed-speed air compressors. While reliable, these legacy systems suffer from extreme energy losses when demand fluctuates. When air requirements fall below peak levels, fixed-speed motors run in a wasteful unloaded state, venting excess energy as heat and vibration.
Our permanent magnet variable frequency drive (VFD) rotary screw systems solve this fundamental design flaw. By constantly adjusting the speed of the compression rotor to match real-time demand, power consumption drops in direct proportion to actual flow rates. Integrating high-performance Permanent Magnet (PM) synchronous motors instead of standard induction motors yields additional savings. PM motors maintain high efficiency levels even at low speeds and partial loads, avoiding the energy losses common in traditional motor configurations.
In high-pressure and high-volume applications, compressing air in a single stage generates massive thermal output. This heat increases the volume of the air, requiring more energy to complete the compression process. Inter-stage cooling solves this challenge. By dividing the compression process between two stages and cooling the air between them, the system approaches isothermal compression—the most thermodynamic-efficient state possible.
During two-stage compression, the pressure ratio for each individual rotor stage is reduced. This smaller pressure difference reduces internal backflow leakages, improving volumetric efficiency. In a dual-shaft configuration, each stage's rotor size and speed can be optimized independently, resulting in energy savings of up to 15% compared to single-stage units of equivalent horsepower.
| Operational Metric | Traditional Fixed Speed Single-Stage | VFD PM Single-Stage Compressor | Premium Two-Stage VFD PM Compressor |
|---|---|---|---|
| Specific Energy Consumption | ~7.8 - 8.4 kW/(m³/min) | ~6.8 - 7.3 kW/(m³/min) | ~5.9 - 6.4 kW/(m³/min) (Saves up to 35%) |
| Motor Efficiency Classification | IE2 / IE3 Induction Motor | IE4 PM Synchronous Motor | IE5 Ultra-Premium PM Synchronous Motor |
| Part-Load Performance | Poor (High unload power loss) | Excellent (Stepless modulation) | Superior (Optimized stage pressure split) |
| Mechanical Wear Rate | High (Constant start/stop strain) | Low (Soft start / ramp down) | Ultra-Low (Reduced stage pressure differentials) |
Industrial applications can be demanding, exposing equipment to high ambient temperatures, coal dust, and chemical vapors. In permanent magnet motors, excessive heat poses a major risk: magnetic breakdown. If a permanent magnet motor operates near or above its Curie temperature limits, the magnetic materials can permanently demagnetize, causing the motor to fail.
To prevent this, our systems utilize dual-cooling strategies. We combine direct liquid oil-cooling jackets with air circulation to maintain rotor temperatures well below critical thresholds. Using high-grade, high-coercivity NdFeB (Neodymium Iron Boron) magnets rated for temperatures up to 180°C ensures consistent magnetic flux, even under continuous full-load operation in challenging climates.
Average operational electricity reduction recorded when migrating from traditional fixed-speed units to our VFD PM systems.
Certified resistance against ingress of fine dust particles and low-pressure water jets, protecting key motor windings.
Low operational sound level achieved through precision-engineered acoustic enclosures and dampening pads.
For pharmaceutical, beverage, and medical operations requiring clean, oil-free air delivery.
Compact design containing the core air storage, refrigeration dryer, active pre-filter, and variable speed pump on a single base.
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Delivers certified pure air without oil contamination, featuring dual dry-stage compression profiles and food-grade internal components.
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Heavy-duty, oil-free rotary system designed for high-volume applications in petrochemical facilities, semiconductor fabrication, and textile mills.
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High-displacement system utilizing automated dual-stage compression to reduce power consumption during heavy industrial cycles.
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Features a dual-module layout with integrated control valves, simplifying maintenance and installation processes.
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All-in-one industrial layout combining compressor, dryer, filter, and tank to save floor space in compact workspaces.
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Industrial-grade system built for continuous mining operations, offering high pressure consistency and durable wear-resistant components.
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High-power 315kw system designed to support large-scale factories, integrating smart variable frequency logic and dual-stage rotors.
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Reliable entry-level screw system providing consistent air flow and pressure parameters for small-scale workshops.
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Integrated screw compressor with explosion-proof options. Wholesale prices directly from the factory. We provide OEM services for leading global brands. Features quiet operation, premium components, a 1-year full-machine warranty, and certifications including ISO and CE.
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Model XD-8A | Free air delivery: 0.8-1.2m³/min | Pressure: 7~12bar | PLC controller | Direct drive with elastic coupling | Star-triangle start | Air-cooled | Motor: 380v/50hz/3ph IP55 | Discharge temp: less than ambient +8°C | Noise: less than 63dB(A) | Weight: 178kg.
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Oil-injected screw design with balanced pressure ratios and low noise. Combines first and second-stage rotors in a single housing, driven by a synchronized front gear to maintain optimal rotor speed.
See more products >Industrial applications require specific pressure levels, flow rates, and air purity. Below is a breakdown of how we tailor our compressor configurations for specific industries:
In high-tech cleanrooms, even trace amounts of aerosolized oil can contaminate components, resulting in production defects. For these facilities, we recommend our Dry-Type Oil-Free Screw Compressors (55kw to 315kw). This system prevents lubricant from entering the compression chamber, ensuring oil-free air delivery that meets ISO 8573-1 Class 0 standards. These units are paired with refrigerated air dryers to maintain stable dew points and protect sensitive assembly machines.
Mining environments are demanding, with high dust levels and fluctuating load requirements. For these applications, we install Two-stage Compression 132kW to 400kW Industrial Screw Compressors. These systems feature heavy-duty inlet filtration, high-efficiency cyclonic dust pre-separators, and IP55 electrical motors. Using a dual-stage design helps lower internal temperature rises, keeping the compressor operating reliably in continuous-duty applications.
Consistent pressure control is critical for automated paint lines to prevent uneven coatings. Our VFD Permanent Magnet Screw Air Compressors dynamically adjust speed to keep pressure fluctuations within ±0.01 MPa. Adding a 4-in-1 integrated dryer and active carbon adsorption system removes humidity and volatile organic compounds (VOCs) to protect the finish.
Small-to-medium enterprises often have limited floor space and need a quiet compressor. Our integrated All-In-One Silent Industrial Air Compressors (7.5kw to 22kw) combine the compressor, dryer, and tank on one base. Running at less than 63dB(A), these units can be installed directly on the workshop floor, eliminating the need for a separate compressor room.
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.
As a large-scale manufacturing enterprise specializing in twin-screw air compressors, we serve as a global supplier of industrial air systems. Our product line includes piston air compressors (low, medium, and high pressure options; oil-free models) and complete screw air compressor systems (ranging from 3KW to 480KW). We also produce gas separation equipment, refrigerant compressors, cold dryers, line filters, ceramic membrane filtration systems, and replacement consumables.
We focus on energy-saving designs, utilizing precision rotor machining, modern assembly lines, and calibrated testing facilities. Our products hold ISO 9001 and CE certifications, ensuring compliance with global efficiency and safety standards.
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Industrial efficiency initiatives and green building regulations are driving demand for energy-saving compression equipment. Industrial plants are modernizing legacy air stations to lower energy usage and meet environmental targets.
We showcase our latest designs at major trade shows worldwide, displaying new VFD options, oil-free systems, and smart PLC integration.
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 steady global expansion.
Traditional induction motors generate magnetic fields in the rotor through electrical currents, which creates copper heat losses (rotor slip). Permanent magnet (PM) synchronous motors use high-grade NdFeB magnets that do not require an excitation current, eliminating rotor energy loss. Additionally, PM motors retain their high-efficiency ratings even when operating at partial capacity (low RPM), while standard induction motors see a significant drop in efficiency when load levels decrease.
A single-stage compressor compresses air from atmospheric level to final pressure in one stroke, which increases temperature and causes internal leakage. A two-stage design divides the work. The first stage compresses air to a medium pressure, then injects oil mist to cool the air before the second stage finishes the process. This lower temperature and reduced pressure difference across each stage improves volumetric efficiency and saves up to 15% on energy costs.
A 4-in-1 system integrates the rotary compressor, refrigerated air dryer, multi-stage coalescing filters, and a storage tank onto a single skid. This design saves up to 60% of floor space compared to individual components and simplifies installation. It also reduces piping connections, lowering the risk of air leaks and pressure drops across the system.
We use high-coercivity NdFeB magnets that are rated for temperatures up to 180°C. The motor housing features a liquid cooling jacket that circulates oil directly around the stator, preventing heat buildup. We also integrate PTC temperature sensors into the windings. If temperatures rise near safe limits, the PLC controller triggers a warning to protect the motor from demagnetization.
We configure motors and control panels for a variety of power grids. This includes single-phase 220V/50Hz systems for light workshops, three-phase 380V/50Hz for Asian and European factories, and 460V/60Hz configurations for North American operations. All configurations use motors rated to IP55 or IP65 protection standards.
Standard maintenance includes changing the air filter element and oil filter every 2,000 hours, replacing the air-oil separator every 4,000 hours, and checking the system lubricant. Because VFD systems use soft-starts to ramp up motor speeds, they avoid the mechanical stress associated with sudden start/stop cycles, which helps extend the service life of belts, couplings, and rotor bearings.
Equipped with custom acoustic panels and vibration-isolation mounts. Provides quiet, continuous power for workshops and manufacturing sites.
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Heavy-duty dual-stage compressor engineered for dusty mining environments, maintaining stable volumetric efficiency under continuous loads.
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Continuous-duty industrial compressors ranging from 7.5kw to 400kw. Built with high-torque motors for robust performance and direct-drive transmission.
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Optimizes air purity by removing moisture down to a 2-10°C pressure dew point. Compatible with eco-friendly refrigerants like R134a and R407c.
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Highly efficient 37kw compressor that combines a two-stage rotor setup with variable speed permanent magnet motor technology.
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Features a space-saving horizontal design, layout simplifies routine maintenance while delivering high output rates.
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Designed for critical applications in food, chemical, and pharmaceutical processing, delivering 100% oil-free air (Class 0 certified).
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Space-saving 4-in-1 layout combining compressor, dryer, filters, and storage tank to simplify setup and maintenance in small workshops.
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