WS Series Industrial Screw Air Compressor

1. Product Overview

WS Series oil-injected rotary screw air compressors are high-performance industrial air supply units developed for heavy-duty continuous production. Built with decades of professional screw compression technology, the WS lineup covers power from 4kW to 75kW (5HP–100HP), including fixed-speed base models and energy-saving VSD variable frequency versions.

Optimized rotor profile, high-efficiency IE3/IE4 motors and integrated silent cabinet design deliver stable, pulsation-free compressed air. Air-cooled as standard, water-cooled optional for high-temperature workshops. Compatible with global industrial voltage standards, widely deployed across manufacturing, machinery, food processing, electronics, packaging and mining industries.

2. Core Competitive Advantages

① Ultra Energy Saving & Low Operating Cost

· Optimized asymmetric 5/6 rotor air end minimizes internal leakage and compression loss, boosting volumetric efficiency by 12% vs ordinary screw compressors.

· VSD variable speed models match air output to real-time demand; cuts idle power consumption by up to 35% and reduces annual electricity bills drastically.

· Built-in spiral capacity regulating valve avoids frequent start-stop, maintains constant stable pressure within ±0.1bar.

· High-efficiency centrifugal cooling fan reduces fan power consumption by 20% with stronger heat dissipation.

② Long Service Life & Reliable Continuous Operation

· Imported heavy-duty air end with wear-resistant alloy rotors and long-life heavy-duty bearings; 5-year official warranty for screw host (with genuine maintenance kits).

· IP55 TEFC high-efficiency motor with built-in temperature sensor, stable operation under -10℃~55℃ ambient environment.

· Multi-stage three-in-one oil-gas separation system, residual oil content ≤2ppm, protects downstream pneumatic tools and dryers.

· Reinforced fully sealed cabinet with shock-absorbing rubber pads, low vibration even under 24/7 full-load running.

③ Ultra Low Noise & Compact Layout

· Full sound-absorbing cotton enclosure + low-speed silent fan, operating noise as low as 67dB(A), can be placed directly inside production workshops without independent compressor rooms.

· Integrated modular structure, compact footprint saves factory floor space; front-side maintenance layout, wide service door for easy filter, oil and separator replacement.

· Integrated automatic zero-loss drain valve, no manual drainage required, reduces daily labor work.

④ Intelligent Microcomputer Control System

· Large LCD touch screen controller, real-time display of discharge pressure, exhaust temperature, running hours, fault alarm records and maintenance reminders.

· Complete safety protection logic: over-temperature, over-pressure, phase loss, reverse rotation, overload and motor overheat auto-shutdown protection.

· Supports multi-unit parallel linkage control, remote monitoring and parameter adjustment via RS485 communication port.

· Auto energy-saving standby mode when air demand drops, no-load delay time adjustable.

⑤ Complete Configuration & Global Compatibility

· Standard matched high-efficiency air filter, oil filter and fine oil separator; extended maintenance intervals up to 8000 hours with dedicated synthetic compressor lubricant.

· Voltage options: 380V/400V/415V 3-phase 50Hz, 220V/440V 60Hz customized for overseas markets.

· Optional upgrades: built-in refrigerated air dryer, air storage tank, heat recovery system, explosion-proof structure and stainless steel piping.

· All models pass CE industrial safety certification, compliant with international environmental standards.

3. Wide Application Industries

· Machinery Manufacturing: CNC machining, laser cutting, stamping, injection molding

· Food & Beverage: Packaging, bottling, food drying, food-grade pneumatic conveying

· Electronics: SMT assembly, precision testing, dust-free workshop air supply

· Building & Mining: Sandblasting, construction equipment, mineral processing

· Textile, Printing, Medical Equipment, Automobile Repair Shops

4. Warranty & After-Sales Support

· Standard 1-year full machine warranty; 5-year warranty for screw air end with authorized maintenance.

· Global spare parts supply chain, fast technical remote guidance and on-site service support.

· One-stop solution: compressor unit, post-processing air treatment equipment, pipeline layout design technical drawings provided.