75 Hp Rotary Screw Air Compressor
75HP/55kW Heavy Duty Industrial PM VSD Air Compressor
Our 75 HP rotary screw air compressor is a heavy-duty industrial air compression solution engineered for continuous operation in medium to large-scale manufacturing facilities. Powered by a 55kW permanent magnet synchronous motor (PMSM) with advanced variable speed drive (VSD) technology, this high-capacity screw compressor delivers robust air output with industry-leading energy efficiency, making it the ideal choice for factories with high and fluctuating air demand.
From automotive assembly plants and textile mills to food processing facilities and large machine shops, this 75 HP stationary screw air compressor delivers the power, reliability, and efficiency that serious industrial operations demand.
Model: 75 HP / 55kW Rotary Screw Air Compressor | Air Delivery: 8.5m³/min| Pressure: 10 bar (1.0 MPa) | Cooling: Air Cooled / Water Cooled (Optional) | Motor: Permanent Magnet Synchronous Motor (PMSM)
Key Features & Benefits
⚡ High-Efficiency PM VSD Drive
Equipped with a premium 55kW permanent magnet synchronous motor and intelligent variable frequency drive, this 75 HP compressor dynamically adjusts output to match real-time air demand. Achieve 35–45% energy savings compared to conventional fixed-speed compressors, dramatically lowering your electricity bill.
🔧 Direct Drive Coupling Design
The coupling direct drive transmission eliminates belt slippage and gear losses, delivering superior mechanical efficiency and reduced maintenance. The precision-machined twin-screw air end ensures stable airflow with minimal vibration and wear.
🔇 Low-Noise Enclosed Cabinet
Operating at just 70 dB(A), this fully enclosed low-noise compressor can be installed directly on the production floor without dedicated soundproof rooms, saving valuable factory space and installation costs.
🌡️ Dual Cooling Option
Available in both air-cooled and water-cooled configurations to suit your facility's conditions. Efficient cooling maintains discharge temperature within ambient +10–15°C, protecting the air end and extending oil life.
🛡️ Comprehensive Protection System
Multi-layer safety protection includes motor overload, phase failure, over-temperature, low oil pressure, and high-pressure protection - ensuring safe, uninterrupted 24/7 operation in demanding industrial environments.
📱 Advanced PLC & IoT Ready
The intelligent PLC controller with large LCD display provides real-time monitoring, fault diagnostics, and automatic maintenance reminders. Optional IoT module enables remote monitoring and predictive maintenance via cloud platform.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | HM 55-10 |
| Horsepower | 75 HP |
| Motor Power | 55 kW |
| Air Delivery @ 1.0 MPa | 8.5 m³/min |
| Working Pressure Range | 1.0MPa (10 bar ) |
| Compressor Type | Twin-Screw / Single-Stage Compression |
| Drive Mode | Direct Drive (Coupling Connected) |
| Motor Type | Permanent Magnet Synchronous Motor (PMSM) |
| Speed Control | Variable Speed Drive (VSD) / Variable Frequency |
| Cooling Method | Air Cooling / Water Cooling (Optional) |
| Lubrication Style | Oil Injected / Oil Lubricated |
| Application | Air Delivery in system |
| Type | Stationary |
| Noise Level | ≤ 70 dB(A) |
| Power Supply | 380V / 50Hz / 3-Phase (Optional: 220V–480V, 50/60Hz) |
| Dimensions (L × W × H) | Approx. 1800 × 1200 × 1690 mm |
| Weight | Approx. 940kg |
| Protection Level | IP54 / IP55 (Optional IP65) |
| Certification | CE, ISO 9001 |
| Warranty | 1 Years (12 Months) |
Why Choose Our 75 HP Screw Air Compressor?
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Compressor Unit
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Precision-milled asymmetric screw rotor with high-quality eight bearings ensures long service life and reliable continuous operation.
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Energy Savings Up to 45% -
The PM VSD system eliminates unloading losses and reduces starting current by up to 80%, achieving the fastest return on investment in its class.
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Precise Pressure Control -
Advanced PID algorithms maintain discharge pressure within ±0.01 MPa, ensuring a stable air supply for sensitive production processes.
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Low Total Cost of Ownership -
Longer maintenance intervals, ample spare parts availability, and high efficiency combine to create industry-leading low lifecycle operating costs.
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Global Voltage Flexibility -
Customizable power configurations range from 220V to 480V, 50/60Hz, compatible with global power grids.
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Compact Integrated Design -
Integrated cabinet design combines oil separator, cooler, and controller, reducing footprint and simplifying installation.
Environmentally Responsible: Ultra-low oil carryover (≤3 ppm) and efficient operation minimize environmental impact while meeting clean air requirements.
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Applications
This 75 HP industrial rotary screw air compressor is the workhorse of choice across diverse industries:
- Automotive Manufacturing: Assembly lines, paint booths, pneumatic tools, robotic welding systems, tire inflation
- Large Machine Shops: CNC machine tool air supply, chip blow-off, pneumatic clamping, laser cutting assist
- Food & Beverage Production: Packaging lines, bottling plants, product conveying, ingredient handling (with filtration)
- Textile & Garment Industry: Air-jet looms, spinning machines, dyeing equipment, pressing machines
- Pharmaceutical & Medical: Process air for tablet pressing, packaging, cleanroom applications (with oil-free treatment)
- Plastics & Packaging: Injection molding, blow molding, extrusion lines, thermoforming, packaging machinery
- Mining & Construction: Pneumatic drills, rock breakers, shotcrete machines, foundation work
- Printing & Paper: Offset presses, paper handling, inkjet systems, finishing equipment
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Product Configuration Options
| Configuration | Description |
|---|---|
| Standard Package | Includes a 75hp compressor unit only – can be directly integrated into existing compressed air systems. |
| With Air Receiver Tank | Integrated 500L–1000L vertical air storage tank for pressure stabilization and pulsation dampening |
| With Refrigerated Air Dryer | High-capacity refrigerated dryer, delivering pressure dew point of 3–7°C |
| With Dryer & Precision Filters | Complete air treatment: dryer + pre-filter + micro-filter + activated carbon filter (Class 0.01 μm) |
| Complete compressed air solution | Compressor + 1000L air receiver + dryer + filter + automatic drain system – ready to use immediately. |
Quality Assurance & Certifications
- ISO 9001:ISO Certified manufacturing with strict quality control at every production stage
- CE Marking - fully compliant with EU Machinery Directive and EMC standards
- Full Load Factory Testing - every unit runs a minimum of 3 hours under full load before shipment
- Pressure Vessel Certification - oil separator tanks certified to ASME/PED standards
Packaging & Shipping
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Packaging: Export standard plywood box, lined with moisture-proof film
Trade Terms: FOB, CFR, CIF, DAP, and DDP available upon request
Delivery Time: Standard models 7-15 working days; Customized/OEM configurations 20-30 days
Port of Loading: Shanghai/Ningbo/Shenzhen (China)
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After-Sales Service & Warranty
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Compressor units, motors, and controllers all come with a two-year comprehensive warranty.
24/7 multilingual technical support is available via email, phone, WhatsApp, and video calls.
Over 10 years of spare parts supply – always original (OEM) parts.
Authorized service partners in multiple countries worldwide.
Dealer training program – providing partners with comprehensive technical and sales training.
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Get Your Custom Quote Now
MOQ: 1 Set | Sample Policy: Evaluation units available for qualified buyers | OEM Available: Yes
Frequently Asked Questions (FAQ)
Q1: What makes this 75 HP compressor suitable for heavy industrial use?
A: This 75 HP model features a heavy-duty air end with oversized bearings, a robust cast iron housing, and an efficient cooling system designed for continuous 24/7 operation in demanding industrial environments.
Q2: How long does it take to recover the cost of upgrading to a VSD compressor?
A: With typical energy savings of 30–45%, most customers see a return on investment within 12–24 months, depending on local electricity rates and air demand patterns.
Q3: Should I choose air-cooled or water-cooled for a 75 HP compressor?
A: Air-cooled is generally more cost-effective and easier to install for most standard factory environments. Water-cooled is recommended for facilities with high ambient temperatures (above 35°C), limited ventilation, or existing cooling water systems.
Q4: Do you offer custom branding and OEM services?
A: Yes, we provide comprehensive OEM/ODM services including custom color schemes, branding, control panel languages, voltage configurations, and even custom model names for our distributor partners.
Q5: Can multiple compressors be linked together?
A: Yes, our compressors support master/slave networking and central control systems, allowing up to 16 units to be coordinated for optimal efficiency and redundancy in large compressed air networks.
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