Explore our premium product portfolio designed for extreme volumetric efficiency, continuous operations, and unmatched durability.
In modern industrial manufacturing, compressed air is often considered the "fourth utility." For large-scale plants, the volumetric flow rate, measured in Cubic Feet per Minute (CFM), is the primary metric that determines output capacity and system stability. High CFM rotary screw air compressors are the heart of operations in heavy industries, including steel mills, petrochemical installations, automated automotive assembly lines, and mining sites.
Globally, manufacturers are facing dual pressures: minimizing energy consumption while maximizing volumetric efficiency. Standard compressors often struggle under 24/7 continuous duty cycles, suffering from thermal build-up and mechanical wear. As a leading British-owned manufacturer based in Shanghai, we engineer our twin-screw air compressors to deliver consistent, pulse-free high CFM outputs. We balance system thermodynamics, dynamic air-end loading, and digital control integration to secure high reliability at lower operating costs.
Our twin-screw rotor geometry utilizes a cutting-edge 5:6 profile ratio, reducing internal backflow leakage. By reducing clearance volumes, we maximize free air delivery per kilowatt of energy input, yielding outstanding Specific Power Consumption (SPC) metrics.
Constructed with premium bearings, IP55 class motors, and advanced PLC control centers, our industrial systems guarantee steady operations. Full certification profiles (CE, ISO) ensure easy regulatory integration across global markets.
Understanding how localized engineering advantages and deep supply chains support international procurement.
Our main manufacturing base is situated at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China. Jiading is a prominent industrial hub. This location gives us direct access to high-precision component casting, automated winding factories, and deep-water shipping lanes for streamlined global delivery.
By pairing British engineering layouts with optimized Chinese supply chains, we offer cost-effective pricing without sacrificing durability. This allows us to supply international distributors and end-users with reliable equipment at a lower cost of ownership.
Whether you require standard 7-13 bar configurations or specific voltage inputs (380V/50Hz/3Ph, 460V/60Hz, etc.), our in-house engineering team customizes packages to your project specifications. We handle tailored color schemes, integrated control screens, and specific air treatment additions.
Analyzing why two-stage rotary screw configurations provide superior energy efficiency for high CFM demands.
| Performance Metric | Single-Stage Compression | Two-Stage Compression (Double PM Motor) | Industrial Advantages / Benefits |
|---|---|---|---|
| Compression Ratio | High per stage (typically 8:1) | Low per stage (typically 3:1) | Reduces internal air slippage and mechanical wear. |
| Discharge Temperature | High (90°C - 105°C) | Low (70°C - 85°C) due to interstage cooling | Extends lubricant life and prevents carbon build-up. |
| Volumetric Efficiency | 78% - 85% | 92% - 95% | Delivers up to 15% more CFM for the same electrical draw. |
| Energy Savings | Standard baseline | 15% - 25% Energy Savings | Significantly lowers monthly utility costs in high-duty operations. |
| Noise & Vibration | Moderate (68 - 75 dB(A)) | Ultra-Low (<63 - 68 dB(A)) | Allows installations closer to workstations without shielding. |
Explore our engineering configurations, containing detailed model structures, customized setups, and direct-drive components.
Integrated air solution with air tank, dryer, and multi-stage filtration to save space and installation costs.
Ideal for chemical, medical, and electronic fields that demand Class 0 clean, oil-free high-volume airflow.
Heavy-duty dry type screw air-end configured for massive volumes, running on stable speed profiles.
Premium air-end optimization reducing compression work, yielding high flow rates at low energy levels.
Compact structure featuring an integrated design to simplify localized hookups and quick commissioning.
Combines screw host, storage vessel, dry unit, and filtration stages to deliver clean compressed air.
Specifically designed to handle variable industrial gas loads, shifting speeds to optimize power consumption.
Engineered for high-volume settings, implementing permanent magnet synchronous motors for efficiency.
Reliable design, providing constant pressure profiles for baseline industrial applications.
Integrated screw air compressor & Integrated explosion-proof screw air compressor. Factory wholesale low prices. We do many OEM projects for international brands. Features energy-saving and ultra silent technology. High quality accessories. Warranty: 1 year for whole machine. Certification: ISO, CE, etc. Professional online consultant to solve your questions about compressor systems. Free site design consultant, and energy saving solutions to help you save operating costs. Negotiable technical support available to service machinery.
Model: XD-8A
Free air delivery: 0.8-1.2m³/min
Working pressure: 7~12bar
Control: Automatic PLC controller
Driven: Direct driven, elastic coupling
Starting: Star-delta start
Cooling: Air cooled
Electric motor: 380V/50Hz/3Ph, IP55
Discharge temp: Less than ambient +8℃
Noise: Less than 63dB(A)
Outlet size: G1/2"
Dimension: 850*670*870mm
Weight: 178kg
The two-stage compression oil injection screw air compressor features an optimized interstage pressure ratio, minimized leakage, and a low-noise host design. It combines the first-stage compression rotor and the second-stage compression rotor into a single casing, directly driving them through a gear mechanism. This design ensures each rotor runs at its ideal linear speed, matching the flow rate and optimizing energy use during operation.
How different fields configure screw air compressors to match flow and pressure demands.
Automated assembly lines and steel production require constant air pressure. Our 132kW - 280kW VSD systems handle high-volume demands, keeping pneumatic tools and conveyor lines running smoothly without pressure drops.
Food processing, packaging, and drug manufacturing demand uncontaminated air. Our dry-type, oil-free screw air compressors supply Class 0 clean air to meet strict hygiene requirements.
Laser cutters rely on high assistant gas pressures for clean cuts. Our specialized 20-bar screw compressors provide the pressure and dry air needed for high-thickness sheet metal cutting.
A leading British-owned manufacturing enterprise supplying advanced twin-screw air systems since 2004.
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 manufacturer specializing in twin-screw air compressors and customized air system solutions.
We supply a wide range of compressed air systems, including low, medium, and high-pressure piston compressors, oil-free screw blowers, and screw air systems ranging from 3kW to 480kW. We also provide gas separation equipment, refrigerant compressors, refrigerated air dryers, desiccant dryers, filters, ceramic membrane filtration systems, and replacement consumables. Our engineering team combines British design layouts with optimized manufacturing to serve distributors and industrial facilities worldwide.
Stay informed on global industry activities, dry vacuum pump market trends, and our exhibition schedule.
According to MRFR analysis, the dry vacuum pump market is valued at US$ 5.97 billion in 2024. The market is projected to expand from US$ 6.17 billion in 2025 to US$ 8.28 billion by 2034, showing steady growth.
This growth reflects a broader industrial trend toward oil-free and dry-running vacuum and compression systems. Industries such as semiconductor manufacturing, chemical processing, and food packaging are switching to dry technologies to prevent product contamination and reduce oil disposal costs. At Shanghai Honest Compressor, we align our product development with these trends, continuously refining our dry oil-free screw air compressors and dry screw blowers to meet global standards.
Answers to common questions from plant managers and procurement teams.
CFM (Cubic Feet per Minute) measures the volumetric flow rate of air delivered by a compressor. It represents the actual volume of air the unit can supply under specified pressure conditions. Adequate CFM is essential because pneumatic tools, actuators, and processes require specific flow rates to function correctly. If the compressor cannot supply the required CFM, system pressure drops, causing equipment malfunction and production delays.
Traditional fixed-speed compressors run continuously at full capacity. When air demand drops, they unload but continue running, consuming about 70% of their full-load power without producing air. A Variable Speed Drive (VSD) system with a Permanent Magnet (PM) motor adjusts the motor's rotational speed to match real-time air demand. This eliminates wasteful unload cycles and can lower energy use by 30% to 50% compared to standard configurations.
Oil-injected screw compressors inject lubricating oil into the compression chamber to seal clearance spaces, cool the air-end, and lubricate the rotors. The oil is later removed by a separator, but trace amounts may remain. Dry oil-free screw compressors use highly precise timing gears to synchronize the rotors without physical contact, eliminating the need for oil in the compression chamber. This guarantees 100% oil-free air (Class 0), which is essential for pharmaceutical, food, beverage, and semiconductor manufacturing.
Two-stage compressors divide the compression process into two distinct phases. By cooling the air between the first and second stages (intercooling), the system approaches isothermal compression. This thermodynamic structure reduces the work required for the second stage, saving up to 15% in energy consumption while reducing mechanical stress and operating temperatures.
Laser cutting require clean, high-pressure assistant gas to blow away molten metal. Standard cutting operations use pressure settings between 7 and 13 bar. For thicker metal plates or high-speed cutting demands, a specialized 16 to 20 bar system is recommended to ensure clean edges and prevent burr formation.
Compare our industrial models, variable speed screw compressors, heatless adsorption air dryers, and air treatment accessories.
