Category: 420HP Screw Air Compressor

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315kW Two Stage Oil Injected Screw Air Compressor Mining & Metallurgy Heavy Duty Version

315kW Two Stage Oil Injected Screw Air Compressor Mining & Metallurgy Heavy Duty Version

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Model No.: ZAT-420

Description

Product Description

Product Overview

This 315 kW two-stage oil-injected Screw Air Compressor is purpose-built for heavy-duty continuous operation of mineral processing and metallurgical plants. It delivers stable compressed air supply for flotation cells, leaching-CIP workshops, filter presses and plant instrument air systems in large-scale polymetallic concentrator projects.

Engineered for harsh continental mine-site conditions: capable of operating under extreme ambient temperature ranging from +41.6 °C up to +41 °C and low-pressure plateau environment. Designed for 330 working days per year, 24-hour non-stop continuous operation, widely applicable for high-cold, arid plateau mining projects.

Technical Specifications

Item	Parameter
Rated Power	315 kW Two-stage screw rotor
Free Air Delivery(FAD)	55 m³/min
Working Pressure	0.9 MPa; Max discharge pressure:1.0 MPa
Cooling Mode	Air-cooled (ideal for waterscarce mine sites)
Power Supply	AC 380v / 50Hz
Noise Level	≤80 dB(A)
Motor Protection / Insulation Class	IP55 / Class F
Unit Specific Power	≤8.0 kW/(m³/min)
Operation Condition	Indoor installation, 24h × 330day continuous duty

Screw Air Compressor Advantages

High-efficiency two-stage rotor assembly

Optimized two-stage compression rotor profile lowers compression ratio, effectively reducing specific power consumption compared to single-stage compressors. Lower operating temperature of main host, extending service life under long-term heavy-load concentrator working cycles.

Strong adaptability for plateau & extreme temperature mine sites

Validated for low-atmospheric-pressure plateau conditions and wide temperature fluctuation from severe cold winter to hot summer. Air-cooled structure removes reliance on process cooling water, perfectly fits arid steppe and remote mine locations with limited water resources.

PLC intelligent control with remote communication interface

Equipped with full PLC & HMI liquid-crystal monitoring system. Collects full-range sensor operating data to support unattended on-site operation. Reserved remote signal transmission interface for seamless DCS interconnection with the whole processing plant. Multi-layer protection functions including over-temperature, over-pressure and overload, with automatic emergency shutdown for fault risk mitigation.

Complete turn-key unit scope of supply

Full package includes main motor, air intake filter, intake & exhaust control valves, check valve, expansion joint, air cooler, pressure & flow monitoring sensors, lubrication & cooling system, base frame, anchor bolts, matching flanges and connecting pipe fittings.

EPC-oriented technical & after-sales support

Comes with one-year full-set spare parts, consumables and special maintenance tools. Supports pre-manufacturing drawing review, including general arrangement drawing, foundation drawing, electrical schematic DWG documents, to align with EPC detailed-engineering workflow.

Typical Application Scenarios

Gold-silver concentrator, polymetallic flotation plant, CIP leaching workshop, filter-press air supply, general instrument air station, mineral-processing EPC projects.

Matching recommendation: Combine with micro-heat regenerative Adsorption Air Dryer and large-volume air receiver tanks to build a complete compressed-air station solution.

Package Includes

1.315 kW two-stage screw air-compressor complete unit

2.Local control cabinet with PLC & HMI, remote-signal-output interface

3.Anchor bolts, connecting flanges and pipe fittings

4.1-year spare-parts & special maintenance-tool kit

5.Full technical documentation: General-arrangement drawing, foundation drawing, electrical schematic drawing (DWG + hard copy), operation & maintenance manual.

Get In Touch

Share your site altitude, ambient temperature range, required air-flow and working pressure. Our engineering team will customize a full compressed-air-station solution tailored for your mineral-processing facility.

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Category: 420HP Screw Air Compressor

 Products> Screw Air Compressor> 420HP Screw Air Compressor> 315kW Two Stage Oil Injected Screw Air Compressor Mining & Metallurgy Heavy Duty Version

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