LM-HDW Dry Oil-free Screw Air Compressor

Coordinated Oil-free Compression, Drive and Control

Core components support clean air supply, continuous operation and local servicing. Component images illustrate the design; motor efficiency, protection ratings and component brands are subject to the technical agreement for the selected model.

Dry Oil-free Screw Air End

Efficient rotor profiles and high-strength materials support compression efficiency and long-term stability without lubricant injection into the compression chamber. Timing gears and bearings still require scheduled maintenance; confirm air quality for the complete system.

IE5 Hairpin Motor Configuration

The hairpin motor design combines compact construction with efficient operation. Confirm IE5 efficiency and IP55 protection for the selected configuration. Motor ratings do not replace package-efficiency or air-quality testing.

Modular Electrical Control

Modular contactors allow control functions to be extended with auxiliary contacts. A 24 V DC coil can be used in the control circuit; confirm voltage, protection and electrical standards for the site supply and delivery configuration.

Heavy-duty Variable-speed Drive

Variable-speed drive adjusts frequency to load, with variable-speed starting helping reduce repeated starts and unnecessary unloaded operation. Select the system for continuous demand, peak flow and pressure requirements.

Local Touchscreen Operation and Monitoring

The local interface provides operating hours, temperature, pressure and maintenance information. Confirm interface languages and alarms for the delivered configuration; routine operation does not depend on a cloud platform unavailable overseas.

Match Air Supply to Production Demand

Variable-speed control matches air supply to production demand instead of supplying peak capacity at all times. Evaluate savings using line losses, demand schedules and operating records rather than a fixed savings percentage.

1. Air Demand Changes
2. Drive Adjusts Speed
3. Air Supply Matches Load

Evaluate Savings for Your Operating Conditions

Compare measured input power before and after an upgrade at equivalent air delivery and pressure. Combine operating hours with the local electricity tariff to calculate the cost difference. Load variation, unloaded hours, pressure settings and existing equipment efficiency all affect the result; a fixed savings percentage cannot replace a site assessment.

Clean Processes and Complete Air Treatment

Applications include food and beverages, pharmaceuticals and biotechnology, electronics, textiles, water treatment and laboratory work. Series ranges are 55–400 kW, 8 bar and 9.4–63 m³/min. Oil-free compression does not replace drying, filtration or process air-quality verification. Contact sales to confirm the model, cleanliness targets and downstream treatment together.

Complete Model and Installation Specifications

Select by power, air delivery, cooling conditions and plant-room space. The tables include dimensions, weight, outlet diameter and starting method for each power rating. Air-delivery values apply at 8 bar.

All air-delivery values apply at 0.8 MPa (8 bar). Use the dimensions, weight and outlet for the selected model; do not transfer values between models. Confirm voltage, frequency and special-duty configurations before ordering.