18.5kW 25HP Industrial VFD PM Screw Air Compressor

Product Overview:
The XZV-25A is a mid-range permanent magnet variable frequency screw air compressor engineered for small to medium-sized manufacturing operations. With a powerful 18.5kW motor and maximum flow of 3.0 m³/min at 0.7MPa, this unit delivers reliable, oil-free quality air for a wide range of pneumatic applications. Its compact footprint (1250×850×1160mm) and 310kg weight allow for flexible installation—even in tight machine rooms. The unit features a Y-△ starter, direct drive transmission, and a 1" connector, making it a versatile choice for workshops upgrading from fixed-speed compressors. The intelligent French PLC controller provides real-time monitoring, fault diagnostics, and multi-language support, ensuring operators stay informed at all times.

Why Choose XZV-25A:

• Ideal for factories with fluctuating air demand—VFD automatically adjusts motor speed to match consumption
• Significant energy savings compared to traditional fixed-speed compressors—ROI typically within 12–18 months
• Low noise (68 dB(A)) allows installation near workstations without requiring hearing protection
• Durable permanent magnet motor with 15+ year magnet life reduces long-term maintenance costs

Core Advantages :

1. Smart VFD with Precision Load-Matching (Saves 20–35% Energy)
   • The variable frequency drive continuously monitors system pressure and adjusts motor RPM in real time
   • Maintains pressure stability within ±0.01 MPa, ensuring consistent product quality
   • Eliminates wasteful unloading cycles common in fixed-speed compressors
   • Soft-start feature limits inrush current to full-load value, protecting your electrical infrastructure
2. Oil-Cooled Double-Shell Motor – Built for Dusty Environments
   • The unique double-shell design circulates cooling oil between inner and outer shells
   • No external cooling air contacts the motor—perfect for foundries, cement plants, and woodworking shops
   • Prevents dust, debris, and moisture from entering the motor core
   • Extends motor life significantly in harsh operating conditions
3. High-Temperature NdFeB Permanent Magnets (15+ Year Service Life)
   • Rated for continuous operation up to 120°C without demagnetization
   • Maintains high efficiency even at low speeds (unlike induction motors)
   • No rotor copper losses—improves overall motor efficiency by 5–8%
   • Backed by rigorous quality testing and 21 years of manufacturing expertise
4. 81°C Constant Temperature Control System
   • Precision thermostat maintains oil temperature at 81°C for optimal viscosity
   • Prevents condensation in the oil system, extending oil change intervals
   • Reduces thermal stress on bearings and rotating components
   • Eliminates sudden high-temperature shutdowns that disrupt production
5. French PLC Touch-Screen Control with Multi-Language Support
   • 7-inch color touchscreen provides intuitive operator interface
   • Displays real-time pressure, temperature, flow, and power consumption data
   • Stores operation history and fault logs for easy troubleshooting
   • Supports English, French, Spanish, Chinese, and other languages

Technical Parameter:

• Free air delivery: 3.0 m³/min @ 0.7MPa | 2.9 @ 0.8MPa | 2.7 @ 1.0MPa | 2.4 @ 1.25MPa
• Motor power: 18.5kW / 25HP
• Start method: Y-△ Starter
• Voltage: 380V 3PH 50Hz (customizable: 460V/60Hz, 220V/60Hz, 400V/50Hz, 6000V/50Hz)
• Drive method: Direct Drive (coaxial integrated transmission)
• Oil content: ≤3 PPM
• Connector: 1"
• Noise: 68±2 dB(A)
• Air supply temperature: ≤ ambient temperature +8~15°C
• Dimension: 1250×850×1160mm
• Weight: 310kg

Application (Detailed by Industry):

Optional Accessories:

• Refrigerated air dryer (prevents condensation in piping)
• High-efficiency oil filter (reduces oil content to <0.01 PPM)
• Active carbon filter (for odor-free air in food/pharma applications)
• Remote monitoring module (Ethernet/Profibus for SCADA integration)
• Stainless steel piping kit (for corrosive environments)

FAQ:

Q1: What is the actual energy savings I can expect with the XZV-25A compared to my current fixed-speed compressor?
A: Typical savings range from 20–35%, depending on your load profile. For a factory operating 8 hours/day with 60% average load, you can expect to save approximately 25% on electricity costs. In highly variable load applications (e.g., multiple machines starting and stopping), savings can reach up to 40%. The VFD precisely matches output to demand, eliminating the 15–20% energy waste common in fixed-speed compressors during unloaded operation.

Q2: How often does the permanent magnet motor need maintenance?
A: The motor itself is virtually maintenance-free. The high-temperature NdFeB magnets have a service life of over 15 years with no degradation under 120°C. The only regular maintenance required is bearing inspection every 8,000–10,000 operating hours. The anti-corona stator enameled wire prevents electrical discharge damage, further extending motor life.

Q3: Can I install this compressor outdoors or in an unheated warehouse?
A: The XZV-25A is designed for indoor installation in ambient temperatures between 0°C and 45°C. For outdoor installation, we recommend a weatherproof shelter. In unheated environments, ensure the oil sump heater (optional) is installed to prevent oil viscosity issues during cold starts. The oil-cooled motor design provides excellent protection against dust, but does not replace proper enclosure against rain or direct sunlight.

Q4: What happens if the VFD fails—can the compressor run in bypass mode?
A: Yes, the XZV-25A includes a manual bypass function that allows the compressor to run at a fixed speed in case of VFD malfunction. This emergency mode ensures you can continue production while awaiting service. However, energy savings will not be realized in bypass mode, and we recommend prompt VFD repair.

Q5: Is it easy to integrate this compressor with my existing air piping network?
A: Yes. The 1" connector is standard for small to medium pipe networks. The unit's PLC includes a built-in pressure setpoint that can be calibrated to match your existing system pressure requirements (0.7–1.25MPa). The VFD's soft start feature also prevents pressure spikes that could damage sensitive downstream equipment during startup.