Engineered for high performance, thermal durability, and continuous industrial duty cycles.
Established in early 2004, Shanghai Honest Compressor Co., Ltd. is a premier British-owned enterprise. Strategically situated at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China, we have developed into a highly recognized, large-scale manufacturing enterprise. Our core specialization is the design, engineering, and manufacturing of advanced twin-screw air compressors.
As a global supplier of complete compressed air system solutions, our capabilities span across low, medium, and high-pressure piston compressors, oil-free systems, and twin-screw technologies ranging from 3kW to 480kW. Additionally, our comprehensive product portfolio includes gas separation equipment, refrigerant compressors, refrigerated air dryers, inline filters, ceramic membrane filtration systems, and genuine consumables.
Quality Assurance & Regulatory Standards: Our entire design, manufacturing, and shipping lifecycle strictly adheres to the ISO9001:2015 quality management standard, ensuring absolute process control, system efficiency, and unit dependability.
Years of Engineering
Power Output Range
Certified Quality Management
Energy Savings via PM VFD
Exploring the thermodynamic breakthroughs and intelligent monitoring frameworks reshaping modern plant operations.
Fixed-speed induction motors struggle with varying load conditions. Integrating Variable Frequency Drive (VFD) technology with Permanent Magnet (PM) synchronous motors allows the compressor speed to dynamically track system air demand, eliminating idle losses and cutting energy expenditures by up to 30-40%.
Dividing the compression ratio over two distinct physical stages reduces internal gas slippage and internal temperatures. The thermodynamic process approaches isothermal compression. The result is a substantial reduction in power consumption per unit of air delivered (specific power intake).
In highly regulated industries such as pharmaceuticals, microelectronics, and food and beverage, zero tolerance for hydrocarbons is the standard. Dry-type, oil-free rotary screw designs eliminate the risk of product contamination, ensuring total compliance with cleanroom environments.
The modernization of China's heavy industrial manufacturing sector is exemplified by the integration of Smart Manufacturing (Factory 4.0) protocols. In our Shanghai Jiading manufacturing plant, our production lines utilize high-precision CNC rotor milling machinery, dynamic balancing tools, and automated system testing benches.
Our raw materials and accessory supply chains are highly integrated locally, providing remarkable resilience against global logistics disruptions. This vertical structure enables us to provide flexible lead times, maintain stable pricing, and run comprehensive testing procedures under real-world pressure loads before any unit is packed and shipped.
Additionally, we combine the engineering expertise of British technical foundations with the manufacturing and assembly capabilities of China. This combination ensures our machines consistently exceed national energy-saving standards, giving global procurement teams a strong balance of high thermal efficiency and cost effectiveness.
To guarantee long-term operational reliability in extreme ambient temperatures, every compressor we build undergoes rigorous evaluation parameters:
How global purchasing managers optimize capital expenditure (CAPEX) and operating expenditure (OPEX) in air system layouts.
Energy consumption accounts for over 70% of a compressor's lifetime cost. Selecting high-efficiency VFD or two-stage units can quickly offset initial CAPEX premiums, generating net-positive savings within the first 12 to 18 months of commissioning.
Global operations require tailored voltages, custom certifications (CE, ASME, UL), and specialized control interfaces (Modbus, Profibus). As an established OEM partner, we customize our machines to match local grid parameters and control systems.
Unplanned downtime can quickly stop production lines. We design our compressors for easy maintenance, using standard consumable layouts that make replacement filters, oil separators, and air ends accessible globally.
| Compressor Type | Initial CAPEX | Energy Efficiency | Maintenance Profile | Best Application Scenarios |
|---|---|---|---|---|
| Fixed Speed Screw | Low - Medium | Baseline (Standard) | Low Complexity | Continuous 100% capacity processes (glass, base chemicals). |
| Single-Stage VFD (PM) | Medium | Up to 30% Savings | Medium Complexity | Variable load demands, light manufacturing, auto-repair. |
| Two-Stage VFD (PM) | High | Up to 45% Savings | Advanced System | Large-scale industrial plants, heavy automotive assembly, mining. |
| Oil-Free Dry Type | Premium | Highly Specialized | Specialized Support | Pharmaceuticals, food processing, electronics assembly, cleanrooms. |
Providing robust performance tailored to the specific ambient requirements of global industrial sectors.
Provides steady, high-volume pneumatic power for robotic weld lines, spray painting booths, and assembly tooling. High air purity and constant pressure stability are critical to prevent defects in finishes.
Delivers dry, clean air for pneumatic component placement, silicon wafer transport, and vacuum systems. Our integrated desiccant air dryers and oil-free screw blowers maintain strict air purity levels.
Requires dependable, round-the-clock air for loom operations, mixing vessels, and chemical process control in high-humidity and high-temperature environments.
Answering common engineering and procurement questions regarding industrial air system operations.
A single-stage compressor compresses air in one continuous cycle, raising temperatures and increasing gas leakage. A two-stage compressor splits the compression ratio between two separate rotors, with an interstage cooling setup that reduces air temperature before the second stage. This two-stage process lowers the workload by 10-15%, delivering more cubic feet per minute (CFM) of air per kW of input energy.
Unlike standard induction motors, Permanent Magnet (PM) motors maintain high efficiency even at low rotational speeds. Coupled with a Variable Frequency Drive (VFD), they eliminate high startup current spikes and adjust power draw based on actual air consumption. This avoids the energy losses associated with running the compressor in unloaded state.
ISO 9001:2015 ensures that the manufacturer has established a complete, repeatable quality control system. For customers, this means consistent tolerances, thorough traceability of core components (like the screw air-end and inverter electronics), and a structured approach to corrective actions, which reduces assembly errors and on-site machinery faults.
Regular maintenance centers on consumable changes: replacing the intake air filter and lubricating oil every 2,000 to 4,000 running hours, and swapping the oil separator element every 4,000 hours. Scheduled motor greasing, cooler cleaning, and periodic oil analysis help prevent premature component wear and maintain system efficiency.
Explore our high-capacity rotary screw air compressors and integrated dry air treatment units.
Speak directly with our technical engineering division. We design layouts tailored to your plant footprint, local electrical codes, and downstream air quality standards.
Call Our Free Service Hotline: 400-705-9168
