Oil Injected Screw Air Compressor
Dullant offers a comprehensive range of lubricated rotary screw air compressors from 2 to 250 kW, airflows from 0.24 to 47 m3/min and pressure ranges from 5 to 13 bar
Dullant’s line of oil-lubricated rotary screw compressors not only delivers maximum productivity but also ensures an efficient experience. With its time-tested designs, cutting-edge technological features, and state-of-the-art manufacturing processes, Dullant offers unmatched excellence in performance.
Dullant compressors represent a giant leap in design and performance, with every component designed for reliability and ease of maintenance. Each compressor is designed and manufactured in compliance with applicable international standards.
Choose your screw air compressor
Lubricated screw air compressors are widely used in various occasions around the world. From small 2 kW to large 250 kW, they can power an entire plant. Many factory processes, such as pneumatic tools, packaging, welding and other critical tasks, rely on compressed air. These models of air compressors produce the on-site air you need, when and where you need it. The dimensions of each installation can be adjusted to suit your production needs.
Why buy a Dullant screw compressor?
Efficiency: Rotary screw compressors are known for their high efficiency, providing a continuous and reliable source of compressed air with minimal energy consumption. This efficiency translates to cost savings over time.
Reliability: Rotary screw compressors are designed for continuous operation, making them highly reliable for industrial applications. They have fewer moving parts compared to reciprocating compressors, resulting in less wear and tear and fewer breakdowns.
Compact Design: Rotary screw compressors have a compact design, allowing for easy installation in various industrial settings, including factories, workshops, and production lines. Their small footprint makes them ideal for facilities with limited space.
Low Noise Levels: Rotary screw compressors operate quietly compared to other types of compressors, making them suitable for environments where noise levels need to be minimized, such as offices or residential areas near industrial facilities.
Versatility: Rotary screw compressors can be used for a wide range of applications, from powering pneumatic tools and machinery to providing compressed air for manufacturing processes such as packaging, welding, and painting.
Applications and uses
Screw air compressors find extensive applications across various industries due to their versatility, reliability, and efficiency. Here are some common applications and uses:
- Manufacturing: Screw air compressors are widely used in manufacturing facilities for powering pneumatic tools such as drills, grinders, sanders, and impact wrenches. They provide a continuous and reliable source of compressed air to support production processes.
- Automotive Industry: In automotive workshops and assembly plants, screw air compressors are used for inflating tires, operating pneumatic tools, and powering paint spray guns. They are essential for maintaining efficiency and productivity in automotive repair and manufacturing operations.
- Construction: Screw air compressors play a vital role in construction sites for operating pneumatic tools like jackhammers, nail guns, and concrete breakers. They are also used for sandblasting, powering pneumatic pumps, and providing air for ventilation systems.
- Mining and Quarrying: In mining and quarrying operations, screw air compressors are used for drilling, blasting, and powering pneumatic machinery for material extraction and processing. They provide a reliable source of compressed air in harsh and demanding environments.
- Oil and Gas Industry: Screw air compressors are utilized in the oil and gas industry for various applications, including powering pneumatic valves and actuators, operating drilling rigs, and providing compressed air for offshore platforms and refineries.
- Food and Beverage Industry: In food and beverage processing facilities, screw air compressors are used for packaging, bottling, and conveying applications. They provide clean and oil-free compressed air, ensuring compliance with food safety standards.
- Textile Industry: Screw air compressors are employed in textile manufacturing for operating air-jet looms, spinning machines, and dyeing equipment. They provide a reliable source of compressed air for various stages of the textile production process.
- Chemical and Pharmaceutical Industry: In chemical and pharmaceutical plants, screw air compressors are used for mixing, blending, and conveying applications. They provide compressed air for pneumatic conveying systems, fluidized bed reactors, and agitation processes.
- Printing and Packaging: In printing and packaging facilities, screw air compressors are used for powering pneumatic cylinders, air knives, and vacuum pumps. They play a critical role in ensuring precise and efficient operation of printing presses and packaging machines.
- Medical and Dental Applications: Screw air compressors are employed in medical and dental clinics for providing compressed air to dental drills, air-powered surgical tools, and breathing apparatus. They are essential for maintaining hygiene and efficiency in medical and dental procedures.
Air end: The world’s high-quality screw machine has high efficiency and low speed. The rotor adopts the third generation 5:6 tooth profile and the world’s best profile design. It has the characteristics of low noise, low energy consumption, low maintenance cost, high reliability and service life.
Motor: Special motor for low-speed compressor, SKF bearings, insulation grade F, protection grade IP54 to ensure trouble-free operation. The efficiency is 3-5% higher than similar products. The direct-connected model uses 1:1 direct rotation without adding a speed-increasing gear. It has the characteristics of a large main engine, low speed, low noise, reliable operation, and long service life.
Oil Filter: The spin-on oil filter uses high-end materials for aviation filtration. The effect is 20% higher than that of conventional filter elements, effectively extending the normal service life of the main engine.
Intake valve: Advanced design of the intake valve, intake adjustment range 0-100%, capacity adjustment valve adjustment, small pressure loss, stable action and long life.
Air Filter: Designed with high dust holding capacity and low flow resistance, it can filter out tiny solid particles in the air, with a dust removal effect of 99.5%, ensuring the normal operation and economical service life of each component of the system.
Cooler: It adopts an extra-large heat exchange surface design to improve cooling efficiency and effectively prevent the machine from high temperatures. The inner wall is anti-corrosion treated to adapt to more severe working conditions and extend its service life.
Axial flow fan: low speed fan with longer life. The cooler and fan can be disassembled independently, providing 20% cooling margin. The best combination can meet the ambient temperature of 50℃.
| Model | Power(kw) | Capacity(M³/Min) | Working pressure(MPa) | Air outlet diameter | Lubricating oil volume (L) | Noise level dB(A) | Driven method | Start method | Extenal dimensions(mm) | Weight (kg) |
| SLT-7.5V | 7.5 | 1.19 | 0.7 | DN20 | 10 | 60±2 | Direct driven | PM VSD | 960*690*925 | 270 |
| 1.09 | 0.8 | |||||||||
| 0.99 | 1.0 | |||||||||
| 0.82 | 1.2 | |||||||||
| SLT-11V | 11 | 2.09 | 0.7 | DN25 | 16 | 62±2 | Direct driven | PM VSD | 1090*740*1080 | 360 |
| 2.0 | 0.8 | |||||||||
| 1.58 | 1.0 | |||||||||
| 1.24 | 1.2 | |||||||||
| SLT-15V | 15 | 2.6 | 0.7 | DN25 | 16 | 62±2 | Direct driven | PM VSD | 1090*740*1080 | 390 |
| 2.4 | 0.8 | |||||||||
| 2.12 | 1.0 | |||||||||
| 2.0 | 1.2 | |||||||||
| SLT-18.5V | 18.5 | 3.2 | 0.7 | DN25 | 18 | 64±2 | Direct driven | PM VSD | 1310*1040*1170 | 550 |
| 2.89 | 0.8 | |||||||||
| 2.7 | 1.0 | |||||||||
| 2.24 | 1.2 | |||||||||
| SLT-22V | 22 | 4.0 | 0.7 | DN25 | 18 | 64±2 | Direct driven | PM VSD | 1310*1040*1170 | 550 |
| 3.59 | 0.8 | |||||||||
| 3.5 | 1.0 | |||||||||
| 2.88 | 1.2 | |||||||||
| SLT-30V | 30 | 5.6 | 0.7 | DN40 | 30 | 66±2 | Direct driven | PM VSD | 1500*1027*1273 | 730 |
| 4.81 | 0.8 | |||||||||
| 4.49 | 1.0 | |||||||||
| 3.96 | 1.2 | |||||||||
| SLT-37V | 37 | 6.31 | 0.7 | DN40 | 30 | 66±2 | Direct driven | PM VSD | 1500*1027*1273 | 750 |
| 6.19 | 0.8 | |||||||||
| 6.14 | 1.0 | |||||||||
| 4.52 | 1.2 | |||||||||
| SLT-45V | 45 | 7.69 | 0.7 | DN40 | 30 | 66±2 | Direct driven | PM VSD | 1500*1027*1273 | 800 |
| 7.49 | 0.8 | |||||||||
| 7.24 | 1.0 | |||||||||
| 6.05 | 1.2 | |||||||||
| SLT-55V | 55 | 9.79 | 0.7 | DN50 | 65 | 68±2 | Direct driven | PM VSD | 1908*1268*1600 | 1750 |
| 9.67 | 0.8 | |||||||||
| 7.61 | 1.0 | |||||||||
| 7.13 | 1.2 | |||||||||
| SLT-75V | 75 | 13.15 | 0.7 | DN50 | 65 | 68±2 | Direct driven | PM VSD | 1908*1268*1600 | 1850 |
| 12.98 | 0.8 | |||||||||
| 11.88 | 1.0 | |||||||||
| 11.32 | 1.2 | |||||||||
| SLT-90V | 90 | 15.9 | 0.7 | DN50 | 72 | 70±2 | Direct driven | PM VSD | 1908*1268*1600 | 1850 |
| 15.7 | 0.8 | |||||||||
| 12.76 | 1.0 | |||||||||
| 12.02 | 1.2 | |||||||||
| SLT-110V | 110 | 19.64 | 0.7 | DN65 | 90 | 70±2 | Direct driven | PM VSD | 2460*1670*1700 | 2200 |
| 19.47 | 0.8 | |||||||||
| 15.7 | 1.0 | |||||||||
| 14.71 | 1.2 | |||||||||
| SLT-132V | 132 | 22.52 | 0.7 | DN65 | 90 | 70±2 | Direct driven | PM VSD | 2460*1670*1700 | 2500 |
| 22.27 | 0.8 | |||||||||
| 19.66 | 1.0 | |||||||||
| 18.53 | 1.2 | |||||||||
| SLT-160V | 160 | 29.4 | 0.7 | DN65 | 90 | 75±3 | Direct driven | PM VSD | 3400*2100*2260 | 3200 |
| 28.3 | 0.8 | |||||||||
| 25.0 | 1.0 | |||||||||
| 21.15 | 1.2 | |||||||||
| SLT-185V | 185 | 32.3 | 0.7 | DN65 | 180 | 75±3 | Direct driven | PM VSD | 3760*2100*2260 | 3200 |
| 31.9 | 0.8 | |||||||||
| 28.5 | 1.0 | |||||||||
| 23.32 | 1.2 | |||||||||
| SLT-200V | 200 | 35.8 | 0.7 | DN80 | 180 | 77±3 | Direct driven | PM VSD | 2650*1488*1900 | 4400 |
| 34.4 | 0.8 | |||||||||
| 32.6 | 1.0 | |||||||||
| 29.53 | 1.2 | |||||||||
| SLT-250V | 250 | 45.9 | 0.7 | DN100 | 200 | 78±3 | Direct driven | PM VSD | 3000*1740*2100 | 4700 |
| 44.0 | 0.8 | |||||||||
| 36.3 | 1.0 | |||||||||
| 33.8 | 1.2 | |||||||||
| SLT-280V | 280 | 52.3 | 0.7 | DN100 | 200 | 82±3 | Direct driven | PM VSD | 3000*1740*2100 | 4950 |
| 48.5 | 0.8 | |||||||||
| 44.6 | 1.0 | |||||||||
| 38.2 | 1.2 | |||||||||
| SLT-315V | 315 | 58.8 | 0.7 | DN125 | 200 | 85±3 | Direct driven | PM VSD | 3300*2200*2100 | 5600 |
| 54.0 | 0.8 | |||||||||
| 48.5 | 1.0 | |||||||||
| 44.5 | 1.2 | |||||||||
| SLT-355V | 355 | 66.2 | 0.7 | DN100 | 200 | 85±3 | Direct driven | PM VSD | 3300*2200*2100 | 6500 |
| 61.0 | 0.8 | |||||||||
| 53.9 | 1.0 | |||||||||
| 48.2 | 1.2 |
