Designed for continuous industrial operation, utilizing low-noise permanent magnet variable frequency drives (PM VSD) to maximize efficiency and minimize specific energy consumption.
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100% oil-free compression system ideal for wastewater treatment, aeration processes, pneumatic conveying, and highly sensitive industrial environments.
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Integrated plug-and-play solution combining rotary screw air compressor, high-capacity receiver tank, refrigerated air dryer, and precision filtration stages.
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Dual PM motor configuration driving secondary stages independently, providing optimal isothermal efficiency and industry-leading performance indices.
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High-performance refrigeration cycle air dryers engineered to achieve reliable pressure dew points, protecting downstream actuators and piping.
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Compact footprint combined with robust variable speed permanent magnet motor technology for small-to-medium manufacturing workflows.
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Combined cooling and adsorption air purification system. Eliminates up to 99.9% of humidity, catering to electronics fabrication demands.
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High-pressure industrial configuration featuring continuous horizontal oil injection and advanced inter-cooling mechanisms for heavy mining.
Technical SpecificationsIn high-demand industrial production, the choice of compressed air machinery directly impacts operational costs, energy use, and system reliability. Modern rotary twin-screw compressors represent the height of volumetric displacement technology, replacing traditional reciprocating pistons in fields requiring steady, high-flow air. Achieving energy efficiency in these systems depends on the design of the compressor's air end. This is where asymmetric male-to-female rotor profiles (typically in 5:6 or 4:6 geometries) rotate precisely, keeping clearances tight and minimizing backflow leakage.
By using Permanent Magnet Variable Frequency Drive (PM VSD) systems, modern compressors adjust their motor speeds in real-time to match varying air demands. This eliminates the energy losses associated with traditional start-stop or load-unload control methods. In a B2B procurement environment, looking at specific power consumption (measured in kW per cubic meter per minute) shows the long-term value of these systems. Selecting high-grade replacement parts, from rotor bearing sets to oil-gas separators, ensures the system maintains peak performance throughout its operational life.
China's status as a major global exporter of screw air compressor parts is built on a highly integrated supply chain ecosystem. In industrial hubs like Shanghai, Zhejiang, and Jiangsu, raw material sourcing, advanced metallurgy, high-precision machining, and end-of-line testing occur in close proximity. This close alignment allows manufacturers to produce components that meet international standards (such as CE, ASME, and ISO 9001) while remaining cost-effective.
Chinese manufacturing facilities utilize computer numerical control (CNC) rotor grinding machinery, such as Kapp or Holroyd systems, to achieve tolerances down to the micrometer. Additionally, access to local high-tensile nodular cast iron, specialized heat treatment facilities, and advanced motor winding resources enables Chinese factories to deliver robust parts, including air ends, electric motors, oil separators, and thermostatic valves, at competitive prices. This complete supply chain ensures quick turnarounds, customizable OEM/ODM designs, and efficient shipping routes to major industrial markets worldwide.
Integrated multi-stage drying and filtering system with tank mounting for space-saving industrial layouts.
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Dry type high-output air end delivering class 0 certified oil-free process air for manufacturing.
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High-power industrial configuration for chemical plants, clean rooms, and food processing lines.
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Two-stage air compression system optimizing efficiency across high volume operations.
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Durable stationary package designed for direct operation under variable demand envelopes.
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Complete packaging solutions integrating active dryers, filters, and standard pressure vessel tanks.
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High-power, lower energy consumption design featuring dual pressure controls.
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Large industrial compressor utilizing high efficiency permanent magnet variable frequency drives.
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Reliable entry-level industrial air compressor offering constant output and low maintenance costs.
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Integrated screw air compressor. Integrated explosion-proof screw air compressor. Factory wholesale low prices. We do many OEM for international famous brands. Energy-saving and ultra silent. High quality accessories. Warranty: 1 year for whole machine. Certification: ISO, CE, etc.
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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 triangle start. Cooling by air. Electric motor 380v/50hz/3ph, IP55. Discharge temp: ambient +8 ℃. Noise: <63dB(A). Dim: 850*670*870mm. Weight 178kg.
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The two-stage compression oil injection screw air compressor has a reasonable equal pressure ratio, ultra-small leakage, and ultra-low noise host design. It combines the first-stage compression rotor and the second-stage compression rotor in one casing, and directly drives them respectively through the front gear...
See more products >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 leading manufacturer of twin-screw air compressors in China, we are committed to delivering reliable, energy-efficient compressed air systems.
Our extensive catalog supports diverse plant configurations. We supply piston air compressors (ranging from low, medium, to high pressure, along with oil-free designs), twin-screw air compressor systems (spanning 3KW to 480KW capacities), gas separation equipment, refrigerant compressors, refrigerated and desiccant dryers, high-grade inline filters, ceramic membrane filtration setups, and an exhaustive inventory of consumables and parts.
By combining European engineering practices with local manufacturing capabilities, we supply high-performing machinery to international markets, backed by technical consultation, system design, and complete parts support.
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For continuous, high-volume operations, two-stage compression is an efficient alternative to single-stage processes. Single-stage compression generates high heat at high compression ratios, increasing the gas's specific volume and requiring more power. Two-stage systems divide the compression ratio across two separate air ends, with an interstage oil-injection cooling system. Cooling the air between stages lowers the intake temperature for the second stage, bringing the process closer to isothermal compression and reducing energy use.
| Engineering Parameter | Single-Stage Configuration | Two-Stage Integrated Series | Thermodynamic Benefit |
|---|---|---|---|
| Compression Ratio per Stage | High (up to 8:1 - 13:1) | Balanced (2.8:1 - 3.2:1 per stage) | Reduces internal bypass leakage |
| Discharge Temperature | 90°C - 105°C | 75°C - 85°C | Prevents thermal breakdown of lubricants |
| Specific Power Index | 6.8 - 7.5 kW/(m³/min) | 5.8 - 6.4 kW/(m³/min) | Reduces electricity usage by up to 15% |
| Rotor Mechanical Stress | High radial load | Distributed low load | Extends bearing lifespan |
By coupling this design with two permanent magnet motors running on variable speed controls, each rotor stage operates at its ideal tip speed. This maximizes efficiency across a wide range of air demands (from 15% to 100% capacity).
Industrial compressed air requirements vary significantly by application. Selecting the appropriate compressor configuration is key to protecting downstream equipment and minimizing maintenance costs:
Our team engages with global industrial networks, sharing insights on vacuum tech, positive displacement blowers, and air treatment systems. By participating in international trade shows, we keep our engineering team aligned with the latest market requirements.
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 stable compound growth rate driven by high-purity processing applications.
Designed for applications requiring high flow at low pressures, such as container manufacturing, textile production, and pneumatic conveying.
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Heavy industrial workhorse. Offers direct-driven air ends, low operating speeds, and a simplified maintenance layout.
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Double-stage compression paired with variable speed control. Optimizes performance under variable plant load profiles.
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High-reliability stationary design. Ideal for workshops and small assembly lines requiring continuous, low-maintenance air supply.
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Designed for heavy mining and metal smelting. Features a dust-proof enclosure and dual compression stages.
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Standard workshop configuration offering direct-coupled alignment, low noise, and clean air discharge.
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Utilizes pure water lubrication rather than synthetic oil. Delivers 100% oil-free air for food, chemical, and research facilities.
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Optimized high-pressure model delivering 20 bar dry air. Tailored for precision sheet metal cutting without nitrogen costs.
Technical SpecificationsPM VSD compressors adjust their motor speed in real-time to match the current air demand. This avoids the energy losses associated with standard start-stop or load-unload control modes, where the motor runs at full speed without producing useful air. In plants with variable load profiles, PM VSD technology can lower energy costs by 30% to 50% compared to fixed-speed models.
Two-stage compression splits the overall compression ratio across two separate rotor pairs, with an interstage oil-injection cooling system. Cooling the air between the first and second stages lowers the intake temperature for the second stage, bringing the process closer to isothermal compression. This reduces the work required by the second stage, lowering energy consumption by up to 15%.
Laser cutting requires high pressure (typically 16 to 20 bar) to clear molten metal and produce clean edges. The compressed air must be free of moisture and oil to prevent contamination of the focus lens, which can cause cracking or beam scattering. Integrated systems with desiccant air dryers and multi-stage coalescing oil filters are recommended for this application.
Standard maintenance schedules call for replacing the air intake filter element and the primary oil filter element every 2,000 operational hours. The oil-gas separator element should be replaced every 4,000 hours, or sooner if pressure drop sensors indicate restriction. Lubricating oil should be changed every 2,000 to 4,000 hours, depending on whether synthetic or mineral oil is used.
As a British-owned enterprise operating in Jiading District, Shanghai, we design and build our equipment to meet CE and ISO 9001 quality and safety standards. We support global clients with detailed technical documentation, design services, and a comprehensive inventory of replacement parts. Our online technical support helps resolve troubleshooting queries to keep downstream operations running smoothly.
