Dejue Product Selection
Dejue Compressors · Product System Overview
40 bar Screw-Piston Integrated Booster Compressor
3 Models · Specifications at a Glance
System Overview
This is the Dejue DJ-4-40 Screw-Piston Integrated Compressor series, covering 3 models, with core parameters: discharge pressure 3 MPa, flow rate 4–8 M³, motor power 18.5–55 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 | Flow Rate (m³/min) | Discharge Pressure (MPa) | Power (kW) | Air Outlet | Noise (dB) | Operating Mode | Net Weight (kg) | Dimensions mm (L×W×H) |
|---|---|---|---|---|---|---|---|---|
| DJ-4/40 | 4 | 3.0-4.0 | 37+18.5 | 1.5" | 60 | Single-stage screw + two-stage booster | 1400 | 2100*1950*1450 |
| DJ-6/40 | 6 | 3.0-4.0 | 45+22 | 1.5" | 60 | Single-stage screw + two-stage booster | 1500 | 2100*1950*1450 |
| DJ-8/40 | 8 | 3.0-4.0 | 55+30 | 1.5" | 65 | Single-stage screw + two-stage booster | 2300 | 3100*2000*2250 |
Applications
PET bottle blowing: provides stable medium- and high-pressure air for PET preform blowing — an ideal choice for the industry;
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 industrial high-pressure applications;
Workshop central air supply: clean, stable compressed air for pneumatic tools, painting, pneumatic conveying and more;
Low-noise alternative: replaces noisy large medium-pressure piston compressors with low noise and vibration.
Product Features
Integrated screw booster: combines the screw main unit and booster system in one, with independent low/medium-pressure systems for easy combination, boosting 0.7–1.0 MPa up to 4.0 MPa;
High efficiency: the screw main unit holds China Grade-1 energy efficiency, saving 10–30% more than Grade 2/3 units; the two-stage booster maximizes energy savings and reduces production costs;
OEM high-quality main unit: higher efficiency, longer running time, low noise, long service life and guaranteed quality;
Low noise & vibration: unit noise 60–65 dB, smooth and quiet operation, suitable for workshop and production line installation;
Unique cooling system: rational design with excellent heat dissipation for long-time stable continuous operation;
Box-type integrated layout: compact structure, small footprint, plug-and-play, easy installation and maintenance;
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.