7-22 kW RM Screw Air Compressor

Welcome to direct-purchase 7-22 kW RM Screw Air Compressor equipment from DECHUAN to eliminate thermal strain risks, lower internal leakage, and optimize pneumatic power transmission across heavy-duty production lines. Combining advanced rotor geometry with an engineered mechanical structure, this oil-flooded rotary screw platform offers exceptional volumetric efficiency, robust dynamic sealing, and minimal pressure drop across high-volume air networks.

Product Core Capability

The RM Series is a commercial-grade, oil-lubricated rotary screw air compressor engineered to transform electrical energy into high-pressure pneumatic energy. Designed to operate 24/7/365 under severe ambient conditions, it delivers continuous compressed air to drive precision pneumatic tools, automated control valves, material conveying systems, and heavy industrial machinery without air output fluctuation or system pressure decay.

Core Advantages

Optimized Rotor Profile: 

The 7-22 kW RM Screw Air Compressor features a newly engineered rotor pair that delivers up to an 11% increase in operating efficiency and up to an 11% boost in free air delivery compared to standard air ends.

V-Shield™ Leak-Free Technology: 

Employs precision plane-sealed elastomeric O-rings on high-pressure fluid joints to eliminate oil seepages and structural pressure drop.

Top-Mounted Non-Welded Cooler: 

Incorporates a horizontally parallel, stress-free aluminum cooler that absorbs thermal expansion without stress-cracking the header pipes.

Low Fluid Carryover Design: 

High-efficiency multi-stage oil separation vessels keep oil carryover below 3-5 ppm, protecting downstream filters and delicate pneumatic tooling.

Heavy-Duty Air Intake Valve: 

Features a low-pressure-drop inlet valve with large air volume clearance, drastically lowering suction resistance and lowering power consumption.

Technical Specifications

DECHUAN vs. Industry Alternatives

After-Sales Support & Installation Framework

10-Minute Response Guarantee: 

Direct technical phone support within 10 minutes of fault submission.

7-22 kW RM Screw Air Compressor Installation Guidance: 

Complete English documentation including electrical wiring diagrams, foundation load drawings, and piping layout guides.

Preventive Maintenance Schedules: 

Clear, step-by-step guides for air filter cleaning, oil separator element replacement, and cooler blowdown procedures.

FAQ

Q: How do you diagnose high discharge temperature shutoffs on 7-22 kW RM Screw Air Compressor?

Inspect the top-mounted horizontal cooler fins for dust or debris build-up. Clean using compressed air from the inside out. Check oil level in the separator tank sight glass and confirm the thermal control valve opens at its rated operating temperature.

Q: What step should be taken if oil content in compressed air lines exceeds 5 ppm?

Check if the oil separator element differential pressure has exceeded 1 bar. Inspect the oil return line scavenge tube orifice for clogging, clean the internal check valve, and ensure fluid viscosity matches factory spec.

Q: What causes excessive vibration or knocking during initial unit startup?

Check motor-to-airend alignment and verify shipping transit bolts were removed. Check main line voltage balance across all three phases (must be within ±2%).

Q: How frequently should the suction filter element be cleaned or swapped?

In heavy dust environments, blow out the filter element weekly using dry compressed air (< 5 barg). Replace the element every 2,000 running hours or whenever the inlet differential pressure sensor trips.

WHY CHOOSE US

Full Complete Product Coverage

We supply full-series industrial air compressors and genuine spare parts, covering Atlas Copco, Ingersoll Rand, VSD energy-saving, oil-free, low-pressure, centrifugal and mobile models, to meet diverse industrial configuration demands.

All-in-One System Solutions

We deliver one-stop aerodynamic system services, including system design, installation, commissioning, energy-saving upgrading, waste heat reconstruction and energy-saving pipeline layout, helping clients cut long-term operation costs.

Reliable Global Supply Chain

We provide full-process import and export services including procurement, customs clearance, commodity inspection and logistics. Optimized supply chain offers competitive pricing, stable quality and punctual delivery with flexible customized trade solutions.

Strict & Trusted Quality Assurance

All devices adopt 100% original factory parts with no refurbished components. Supported by standardized QC systems and strict pre-shipment testing, our products own high reputation in global markets.

Profound Cross-Industry Experience

With rich project experience in steel, chemical, automotive, medical, electronics, new energy, food packaging and other fields, we precisely customize solutions for different production scenarios.

Fast Full-Cycle Standard Service

10-minute inquiry response, 24-hour formal quotation and 7×24h online technical support. We support OEM/ODM customization, fast stock delivery, remote troubleshooting and regular equipment inspection throughout the whole cycle.