Direct from Top China Exporters: High-Efficiency Oil-Free Screw Compressors & Dryers Integrated Units
High performance water lubricating compressor designed for clean, oil-free operations in sensitive industries.
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Industrial grade general duty rotary air compressor delivering stable working pressures with robust durability.
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Energy saving VSD variable speed drive motor, customized solutions ranging from 15kw up to 75kw.
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Innovative 4-in-1 layout combining compressor, dry, filter, and receiver tank within a single silent enclosure.
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Integrated VSD PM system designed for space-sensitive installations requiring high efficiency air flow.
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Compact design incorporating key auxiliary drying and filtration modules for immediate operational deployment.
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Dual system design featuring a permanent magnet VSD motor integrated with a high efficiency active refrigerant dryer.
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Ultimate air quality setup containing a 22kw screw compressor coupled with downstream desiccant adsorption drying towers.
Explore SpecificationsIn modern industrial processes, compressed air is more than just a source of power; it is a critical process medium. However, atmospheric air naturally contains large amounts of water vapor, dust particles, and vaporized oil. When compressed, these contaminants concentrate to toxic levels. If this moisture is not eliminated, it leads to rapid pneumatic component corrosion, product contamination, control system failure, and severe piping blockages in cold temperatures.
To achieve clean, dry compressed air, desiccant dryers utilize pressure swing adsorption (PSA) or thermal swing adsorption (TSA) technologies. Utilizing high-affinity desiccants like activated alumina, molecular sieves, and silica gel, these systems achieve a critical pressure dew point (PDP) of -40°C (-40°F) to -70°C (-94°F), complying directly with ISO 8573-1 Class 1 and Class 2 moisture standards.
Compared to standard refrigerated air dryers that can only reach a PDP of approximately +3°C, desiccant dryers are absolutely mandatory for low-temperature outdoor piping networks, high-purity instrument air, laser cutting, pharmaceutical production, food processing, and semiconductor manufacturing.
Minimum Dew Point Capability
Manufacturing Since
Global Quality Certified
Low Purge Air Technology Available
China has evolved from a basic components assembler to a premier engineering hub for high-capacity air treatment systems. China’s compressor and dryer manufacturers have established robust advantages in the global supply chain, which directly benefits international procurement departments:
From core casting, raw activated alumina processing, precise pressure vessel fabrication (ASME/GB standards), to intelligent PLC programming—everything is executed within close regional clusters. This enables factories like Shanghai Honest Compressor Co., Ltd. to quickly prototype, control lead times, and rapidly customize models to client specifications.
Modern Chinese exporters focus heavily on reducing the "purge air consumption rate" of desiccant systems. While traditional heatless desiccant dryers lose up to 15% of dried compressed air for self-regeneration, Chinese engineers have perfected zero-purge blower purge systems, heated vacuum adsorption, and dew-point-dependent switching (DPDS) networks, reducing energy consumption by up to 60%.
| Dryer Technology | Achievable Dew Point (PDP) | Purge Air Loss Rate | Typical Application Scenarios |
|---|---|---|---|
| Heatless Desiccant Dryer | -40°C to -70°C | 12% - 15% | General manufacturing, pneumatic control valves, instrument air |
| Heated Desiccant Dryer | -40°C to -70°C | 3% - 6% | Medium-to-large capacity systems, painting lines, packaging plants |
| Blower Purge Desiccant Dryer | -40°C to -70°C | 0% - 1% | Heavy chemical plants, large scale electronics fabrication |
| Heat of Compression (HOC) | -40°C to -50°C | Near 0% | Centrifugal/Screw compressor systems with continuous operation |
Engineered for high performance, continuous operation, and severe-duty environment resilience.
Integrated structure with minimum floor space requirements. Ideal for workshops and small assembly lines.
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Delivers certified Class 0 oil-free air to eliminate contamination risks in chemical processes.
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High-power station-class design optimized for large processing plants and city-grid utility applications.
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Employs dual-rotor series compression to yield higher air delivery rates while consuming less power.
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Robust AC driven compact system offering solid output for small to medium scale industrial applications.
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Fully packaged unit including pre-filters and cold drying components for quick shop-floor startup.
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Dual compression design for heavy production cycles. Maximize your air output per kilowatt.
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Flagship model utilizing permanent magnet motor technology and variable frequency control for massive energy savings.
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Cost-efficient, reliable workhorse for routine shop duties with straightforward upkeep demands.
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Integrated screw air compressor, explosion-proof design. Factory wholesale prices. Energy-saving, silent operation, certified CE/ISO, 1-year warranty.
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Model XD-8A: 0.8-1.2m3/min delivery, 7-12bar working pressure, PLC control, direct coupling, IP55, noise < 63dB(A).
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Two-stage oil injection screw compressor features equal pressure ratio, minimal leakage, and ultra-low noise host design.
See more productsDifferent industrial fields require specific air quality classes. A proper understanding of application-specific requirements avoids over-specification (which leads to excessive procurement costs) or under-specification (which causes system contamination).
Lithography and thin-film deposition tools are highly sensitive to humidity. Sub-zero dew points (-70°C PDP) prevent water molecule adsorption on silicon wafers, preventing defective microchips and electrostatic discharge issues.
Pneumatic conveyances carrying pills, powders, or raw ingredients rely on extremely dry air. Any residual moisture causes powder clumping, bacterial growth in pipelines, and failed quality audits by regulatory bodies.
Compressed air feeds spray-paint heads directly. The presence of even minute moisture droplets causes blistering, orange peel texture, and pinholes on vehicle body coatings, resulting in expensive rework costs.
For outdoor process plants located in cold climates (e.g., northern Europe, North America), freezing ambient temperatures threaten to turn moisture in pipes into ice. Using desiccant adsorption drying is the only reliable way to keep instrument control networks operational throughout winter freeze cycles.
Shanghai Honest Compressor Co., Ltd. is a premier British-owned enterprise founded in early 2004. Our primary manufacturing campus spans modern assembly lines located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China. We stand as a large-scale manufacturing enterprise specializing in the design, engineering, and manufacturing of premium twin-screw air compressors in China.
As a global supplier of integrated air system solutions, we engineer and distribute various types of piston air compressors (ranging from low pressure, medium pressure, high pressure, to dry oil-free setups), screw air compressor systems (from 3KW to 480KW configurations), gas separation equipment, refrigerant compressors, cold dryers, adsorption dryers, precision inline filters, ceramic membrane filtration systems, and all associated accessories and consumables.
We provide expert engineering, free site design consultancy, and energy-saving audits to help global clients reduce operating overheads and maintain compliance with environmental regulations. Our engineering services are backed by standard warranties, ISO/CE certifications, and responsive online customer support.
Drag or scroll to view our clean manufacturing facility and assembly workshops in Jiading, Shanghai.
Keeping a pulse on international technology standards and cross-industry innovations.
We participate in global trade shows to showcase our latest variable frequency screw compressors and low-purge desiccant dryers directly to engineers and distribution networks.
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 key shifts towards clean, dry, and energy-efficient pumping technologies globally.
For international procurement directors sourcing compressed air desiccant dryers from China, verifying technical specifications and quality certifications is essential to ensure long-term system integration and reliability:
By engaging with established manufacturers like Shanghai Honest Compressor Co., Ltd., international clients leverage over 20 years of OEM and ODM engineering experience, ensuring that delivered hardware aligns perfectly with local electrical codes and factory safety regulations.
Completing your air network with industrial-grade equipment designed for energy efficiency.
High displacement 37kw compressor utilizing advanced permanent magnet VFD drive for optimized load matching.
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Heavy duty horizontal packaging designed for robust heat dissipation and convenient ground level servicing.
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Flagship 280kw oil-free workhorse, perfect for clean manufacturing plants with strict oil carryover rules.
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Scalable PM VSD lineup delivering highly efficient performance to minimize electricity costs.
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Direct drive coupling ensures 100% mechanical power transfer, designed for 24/7 continuous operation.
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Low pressure screw compressor (3-5bar) optimized for bulk materials transport, glass manufacturing, and aeration.
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Water-lubricated 100% oil-free screw air compressor with variable speed control for clean process environments.
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Specialty oil-free screw blower designed for wastewater treatment aeration and bulk powder conveying systems.
Explore SpecificationsExpert answers addressing sizing, dew point performance, energy optimization, and maintenance intervals.
