SIP QT AIR DD 4.5hp 200ltr Ultra Low Noise Oil-Free Direct Drive Compressor

The SIP QT AIR DD 4.5hp 200ltr Ultra Low Noise Oil-Free Direct Drive Compressor is a powerful, high-performance air compressor designed for demanding automotive applications and large workshops. Combining high air delivery with ultra-low noise operation at just 67dB, it is ideal for professional environments where dependable compressed-air performance and reduced noise levels are important.

Powered by a 4.5hp (3.3kW) motor system featuring six cylinders and slow-running 4-pole motors, this compressor delivers 22.8CFM piston displacement and 18.2CFM Free Air Delivery (FAD) from a single-phase supply. The slower-running motor design is engineered to offer up to 50% longer working life compared with standard SIP 2-pole motor compressors.

The oil-free direct drive system reduces maintenance requirements and prevents oil carry-over to air tools and equipment. Innovative start-up technology activates the motor pump units at three-second intervals to help reduce inrush current, while an electronic automatic bleed system releases residual delivery pressure before each filling cycle to support smoother starting and reduce mechanical stress.

Featuring a generous 200-litre receiver tank, the QT AIR DD provides a substantial reserve of compressed air for demanding applications. The adjustable pressure regulator and twin quick-release air connectors offer convenient control over air delivery, making it suitable for spraying, pneumatic car lifts, tyre changers, sanding, grinding and plasma cutting.

Designed for easy movement around the workplace, it features solid rear wheels, front swivel castors and a practical U-shaped handle. The handle also includes a mounting bracket for a compatible SIP Air Hose Reel, available separately.

Key Features and Benefits

• Powerful 4.5hp motor system – Delivers 22.8CFM piston displacement and 18.2CFM Free Air Delivery (FAD) for demanding compressed-air applications.

• Large 200-litre receiver tank – Provides a substantial reserve of compressed air for professional tools and equipment.

• Ultra-low noise operation – Runs at just 67dB, making it suitable for noise-sensitive workshops and automotive environments.

• Slow-running 4-pole motors – Designed to operate at lower speeds and provide up to 50% longer working life compared with standard SIP 2-pole motor compressors.

• Oil-free direct drive design – Reduces maintenance requirements and prevents oil carry-over to tools and equipment.

• Maximum pressure of 8 bar – Suitable for a range of compatible air tools and equipment.

• Staged motor start-up – Starts individual motor pump units at three-second intervals to help reduce inrush current and motor stress.

• Electronic automatic bleed system – Releases residual delivery pressure before each filling cycle to support smoother start-up.

• Enhanced cooling system – Large motor fans help manage operating temperatures and maintain performance.

• Adjustable pressure regulator – Allows working pressure to be adjusted from 0–8 bar to suit the application.

• Dual pressure gauges – Provide clear readings of receiver tank pressure and regulated working pressure.

• Twin quick-release air connectors – Allow convenient connection and changing of compatible air tools.

• Condensate drain valve – Allows moisture to be removed from the receiver tank to help reduce corrosion.

• Mobile wheel-mounted design – Solid rear wheels and front swivel castors provide manoeuvrability around the workshop.

• Air hose reel mounting bracket – The supplied U-handle includes a bracket and fixings for a compatible SIP Air Hose Reel, available separately.

• 230V / 16A power supply – Supplied with a 3m mains cable and plug for connection to a suitable supply.

Ideal Applications

The SIP QT AIR DD 4.5hp 200ltr Compressor is particularly well suited to:

• Automotive workshops and professional garages.

• Spray painting and finishing applications.

• Pneumatic car lifts and tyre changers.

• Sanding and grinding.

• Spot welders and plasma cutters.

• Other compatible air tools requiring a higher volume of compressed air.

What's Included?

• 1 × SIP QT AIR DD 4.5hp 200ltr Ultra Low Noise Oil-Free Direct Drive Compressor.

• 1 × Wheel kit with two solid wheels and two castors.

• 1 × U-shaped pull handle.

• 1 × Air hose reel mounting bracket and fixings.

• 1 × 3m mains cable with 230V / 16A plug.

Compatible SIP air hose reels (sold separately):

• SIP Air Hose Reel R15 (07977) – 15m recoiling hose with heavy-duty metal casing.

• SIP Air Hose Reel 15 (07974) – 15m recoiling hose with heavy-duty plastic casing.

• SIP Air Hose Reel 12 (07972) – 12m recoiling hose with heavy-duty plastic casing.

The SIP QT AIR DD 4.5hp 200ltr Compressor is an excellent choice for professionals seeking high air delivery, a generous air reserve, quieter operation and reduced maintenance in a robust, mobile package. Always check that the compressor's air delivery, pressure and electrical supply are suitable for your intended tools and applications.