Dejue Product Selection

System Overview

This is the Dejue DJ-6-40 Water-Cooled Oil-Free Compressor series, covering 7 models, with core parameters: discharge pressure 4 MPa, flow rate 6–20 Nm³, motor power 67–207 kW.

This page summarizes the complete specifications of every model in the series for quick comparison and selection. For specific configurations, media compatibility and custom requirements, please consult the manufacturer for a formal proposal.

Model & Parameter Overview

Model	Volume Flow  (Nm³/MIN)	Discharge Pressure  (MPa)	Installed Power  (kW)	Shaft Power  (kW)	Crankshaft Speed  (rpm)	Air Outlet Dimensions	Cooling Water Inlet/Outlet Size	Net Weight  (KG)	Circulating Water Flow  (t/h)	Dimensions mm (L*W*H)
DJ-6/40	6	4	67	60	550	DN40	DN40	2450	20	2850*1550*1500
DJ-8/40	8	4	85	77	560	DN40	DN40	3100	25	2850*1550*1500
DJ-10/40	10	4	112	101	420	DN40	DN40	3600	30	3200*1900*1800
DJ-12/40	12	4	135	122	530	DN40	DN40	3650	40	3100*1850*1800
DJ-16/40	16	4	165	149	510	DN50	DN50	4600	50	3500*2100*1800
DJ-18/40	18	4	185	167	510	DN50	DN50	4950	50	3500*2100*1800
DJ-20/40	20	4	207	186	410	DN50	DN65	5600	60	3820*2050*2100

Notes:* Non-standard option: pressure boostable to 8 MPa (80 bar)

Applications

• PET bottle blowing: provides oil-free, clean medium- and high-pressure air for preform blowing;

• Clean air supply: central air supply for food & beverage, pharmaceutical, electronics, precision manufacturing and other oil-sensitive industries;

• Leak & pressure testing: high-pressure air-tightness inspection and pressure-endurance testing of pipelines, vessels, valves and other workpieces;

• Blow molding & laser cutting: air supply for blow molding, laser cutting and other medium/high-pressure industrial applications;

• Large-scale process & energy equipment: medium- and high-pressure air for hydropower stations, marine, energy equipment and other large industrial applications.

Product Features

• Water-cooled oil-free compression: oil-free lubrication throughout the compression chamber for clean, pure output air — ideal for oil-sensitive production processes;

• Screw + piston integration: low-pressure stage fed by the screw main unit, high-pressure stage boosted by the piston — a complete screw-piston medium/high-pressure unit;

• Water-cooling system: stable circulating cooling with excellent heat dissipation for long-time continuous large-flow operation;

• Large-displacement medium/high pressure: 6–20 Nm³/min volume flow at up to 4 MPa (40 bar) for large-scale central air supply;

• High efficiency: rational installed/shaft power configuration for stable, reliable operation and reduced operating costs;

• German technology with European OEM key components, assembled on European-standard lines with performance in line with European standards;

• Low noise, low vibration and high durability for stable, reliable long-time continuous operation;

• Non-standard option up to 8 MPa: discharge pressure can be customized up to 8 MPa for higher-pressure applications;

• The factory is ISO 9001 certified and holds a national industrial product production license; products pass multiple machining, inspection and endurance test processes under strict control;

• 1-on-1 professional selection guidance, installation & commissioning training and regular follow-up inspections; multiple service centers nationwide provide fast after-sales support.

Product Images

Selection & Contact

For selection and quotation based on your operating conditions (air-consuming equipment, flow rate, pressure, power supply, cooling method, continuous/intermittent operation, oil-free requirement, installation space, budget and delivery time),

please provide a brief description of the above requirements and Dejue will arrange technical/sales staff to prepare a solution for you. Parameters on this page are based on the manufacturer's latest technical data; the formal contract and technical agreement shall prevail.