Explore our highly integrated VSD PM screw compressors, high-power two-stage systems, and energy-saving vacuum solutions.
Shanghai Honest Compressor Co., Ltd. is a premier British-owned enterprise founded in early 2004. Located at NO. 355 Jiajian Branch Road, Malu Town, Jiading District, Shanghai, China, we operate a large-scale manufacturing complex specialized in research, design, and distribution of high-capacity twin-screw air compressors.
As a leading supplier of global air system solutions, we design, engineer, and export comprehensive equipment systems. Our diverse line covers piston air compressors (low, medium, high pressure, and oil-free), as well as direct drive screw compressors ranging from 3KW to 480KW. Additionally, we export high-tech gas separation equipment, refrigerant compressors, refrigerated air dryers, inline filters, and proprietary ceramic membrane filtration units.
We fully implement strict management throughout the entire manufacturing process, strictly monitoring product quality and environmental protection. Our production facility is certified under the ISO9001:2015 quality management standard, ensuring that every product exported meets rigorous international demands.
Understanding why leading global manufacturers are phasing out belt-driven systems in favor of direct-drive configurations.
| Performance Parameter | Direct Drive System (Our OEM Configuration) | Traditional Belt-Driven Compressors |
|---|---|---|
| Transmission Efficiency | Nearly 100% (1:1 coupling alignment, zero slippage) | 92% - 96% (significant energy losses due to friction and slippage) |
| Maintenance Overhead | Extremely Low (no belts to adjust, tension, or replace regularly) | High (frequent belt tensioning, replacement, and pulley wear) |
| Bearing Wear & Life | Balanced radial load, extending the lifecycle of the motor & air-end bearings | High radial force on bearings due to belt tension, causing faster wear |
| Energy Consumption | Reduces specific power consumption; up to 30% savings with VFD PM | Higher electricity consumption due to mechanical friction losses |
| Vibration & Noise Levels | Minimal vibration, exceptionally quiet operation (low noise casing) | Increased structural vibration and noise from belts and pulleys |
Our direct-drive screw compressors utilize a heavy-duty elastic coupling that directly links the motor to the air-end. This design mitigates transmission loss while protecting internal mechanisms from startup spikes. When paired with Variable Frequency Drive (VFD) Permanent Magnet (PM) technology, the system adjusts motor speeds to match air demands, eliminating costly unload cycles.
Maintains ultra-high efficiency even at low operating speeds, outperforming standard induction motors.
Reduces compression ratios across stages, lowering thermal strain and boosting volumetric efficiency.
Delivers 100% clean air for demanding environments like food processing, pharmaceuticals, and electronics.
Enables real-time remote telemetry, preventive maintenance prompts, and Modbus protocol support.
How our strategic location and manufacturing capabilities deliver unmatched cost-to-performance ratios for global OEMs.
Located in Jiading District, Shanghai, our factory draws from a robust regional supply network. This proximity to raw materials, advanced casting foundries, precision machine tooling centers, and motor manufacturers reduces lead times and costs, which we pass directly to our international clients.
We do not compromise on quality. Every compressor design undergoes testing validated by the National Compressor Inspection Center. The resulting energy consumption profiles are certified to surpass local and international energy-saving standards, offering measurable performance improvements.
As a British-owned manufacturing firm, we bridge the gap between competitive Chinese production and high Western design standards. Our production processes adhere strictly to CE standards, UL guidelines, ASME requirements, and ISO9001:2015 protocols to guarantee seamless international customs entry.
Empowering distributors, plant engineers, and project developers with robust local compliance and post-sales networks.
Different markets present distinct mechanical codes and grid conditions. We provide tailor-made OEM configurations, adjusting for 380V/50Hz, 460V/60Hz, 230V/60Hz, or 575V/60Hz systems. Standard options also include pressure vessel configurations certified to ASME, CE-PED, or CRN standards.
We work closely with local dealers and regional distributors. To guarantee continuous uptime for end-users, we supply standard maintenance kits (comprising replacement oil filters, air filters, and air/oil separators) directly from our centralized warehouses for rapid shipping.
For communication with customers and overseas purchasing agents, the company maintains a dedicated support hotline: 400-705-9168. We also work with a specialized dealer network in major domestic and global commercial hubs to address installation and commissioning needs.
Where our high-performance direct drive compressors deliver clean, reliable, and energy-conscious compressed air.
Operating in harsh, dust-heavy conditions requires robust equipment. Our enclosed direct-drive units feature heavy-duty intake filtration and a protective cabinet design. The 132kW to 315kW options deliver continuous air to blowers, pneumatic tools, and separation installations.
Even trace amounts of oil can contaminate critical products. For these sensitive applications, we supply advanced water-lubricated oil-free screw compressors. By using water as both a sealant and cooling agent, the system guarantees 100% oil-free output that complies with strict purity standards.
Modern semiconductor and electronic assembly facilities demand consistent air supply with zero pressure spikes. Our integrated Permanent Magnet VFD compressors adjust output dynamically. This reduces pressure drops to within +/-0.01 MPa, preventing product defects during production.
Get answers to key technical, supply, and maintenance questions regarding our direct drive screw compressors.
Complete your facility planning with our range of heavy-duty, oil-free, and custom industrial rotary screw systems.
