Explore our premier configurations designed for reliable, contaminant-free air delivery.
Established in early 2004, Shanghai Honest Compressor Co., Ltd. is a British-owned enterprise specializing in high-capacity twin-screw air compressors. Operating from our state-of-the-art manufacturing complex located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China, we have grown into one of China's most significant manufacturers and global exporters of complete compressed air solutions.
With a comprehensive engineering catalog spanning 3kW to 480kW, we supply direct-drive and variable-frequency screw systems, dry-type oil-free screw compressors, medical-grade oilless piston systems, gas separation plants, and advanced refrigerant dryers. Our operation is certified to the rigorous ISO 9001:2015 Quality Management System, guaranteeing that every export unit complies with CE, ASME, and global efficiency standards.
Contact our B2B Support Desk via our free national service hotline: 400-705-9168 for engineering integrations and regional logistics coordination.
In modern manufacturing, process purity is no longer a luxury—it is an absolute regulatory and operational mandate. Under the global standard ISO 8573-1 (2010), Class 0 air defines the stringent thresholds for oil aerosol, vapor, and liquid contamination. While traditional lubricated screw compressors rely on downstream filtration systems to trap lubricating oils, the failure of a single separation stage can result in catastrophic product contamination, costly line stoppages, and reputation damage.
For critical industries, oilless air compression represents the only true safeguard against contamination risks. Our engineering paradigm shifts from "oil removal" to "oil elimination." By designing compression chambers that operate completely without oil lubrication, we eliminate the physical source of hydrocarbons in the compression cycle, providing native, uncontaminated dry air.
To assist procurement engineers in selecting the optimal system architecture, we provide a comparison of the two primary oilless technologies:
| Technical Metric | Dry-Type Oilless Screw | Water-Injected Oil-Free Screw | B2B Selection Advantage |
|---|---|---|---|
| Sealing Medium | Precision Clearance & Rotor Coatings | Purified Water Film | Dry-type eliminates water treatment and disposal costs. |
| Operating Temperature | High (140°C - 200°C per stage) | Low (45°C - 60°C isothermal) | Water-injected runs cooler; Dry-type requires dual-stage. |
| Maintenance Complexity | Low (No water filtration/reverse osmosis) | Medium to High (Water quality monitoring) | Dry-type reduces plant maintenance cycles. |
| Rotational Speed | High (up to 12,000 RPM) | Low to Medium (3,000 - 4,500 RPM) | Precision-designed gearboxes ensure long lifespan. |
Compressed air can account for over 40% of an industrial facility's electricity consumption. Standard fixed-speed compressors operate on a load/unload scheme, wasting considerable energy when demand drops. Our Variable Frequency Drive (VFD) permanent magnet motor systems match motor output directly to real-time air consumption.
By utilizing high-grade NdFeB permanent magnets, our synchronous motors maintain high efficiency even at low rotational speeds. This design mitigates mechanical startup spikes, maintains power factor standards, and reduces specific power consumption (SPC). Over a typical 10-year operating lifecycle, this technology reduces the Total Cost of Ownership (TCO) by up to 30% compared to traditional fixed-speed units.
In dry-type oilless screw compressors, the rotors run without liquid sealant. This requires extremely tight manufacturing tolerances and advanced coatings. Our rotors feature specialized Teflon-based (PTFE) and PEEK composite layers. This molecular coating provides:
Engineered to support heavy industrial operations with optimal efficiency and uptime.
Distributes pressure across two balanced stages, reducing mechanical wear and maximizing volumetric output per kW of input energy.
Synchronous PM motors maintain efficiency at lower speeds. This avoids typical unloader cycles and saves significant energy costs.
Eliminates contamination risks. Designed specifically for critical processing lines in cleanroom, food, and pharmaceutical applications.
Shanghai Honest Compressor Co., Ltd. provides robust, high-performance compressed air configurations across key B2B industrial sectors:
To align with global sustainability initiatives, our R&D roadmap focuses on:
Common questions regarding oilless compression engineering, system selection, and operations.
Our global export range includes fixed-speed, two-stage, and PM VSD configurations.
