Dive compressor Smart

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Overview
The Coltri Smart compressor (Efficient Line) is a compact, silenced-frame high-pressure unit designed for production of breathing-quality air. Built for reliability, ease of maintenance and modular accessory integration, it combines a 3-stage high-pressure pumping unit with the Maxifilter purification system to meet breathing-air standards such as DIN EN 12021 when original cartridges are used.

Main pumping unit - 3-stage high pressure pumping unit

• Aluminum monoblock
• Spray lubrication with tang immersed in oil
• Suction filter: 10 µm
• Pipes, fittings and nuts in AISI 316 stainless steel
• Intermediate condensate separator after second stage
• High-pressure final condensate separators
• Safety valves after each compression stage
• Die-cast aluminum cylinders with Nicasil barrel coating for high heat dispersion
• Forged aluminum connecting rods
• Forged steel crankshaft
• Stainless steel valves on 2nd and 3rd stages
• Heavy-duty roller bearings
• Hardened steel third stage with 5 special cast-iron segments
• Second and third stages with thrust pads to eliminate lateral piston forces
• Filter system: Maxifilter

Electric motor
Available with single-phase or three-phase electric motor in the 3–5.5 kW range. Motion is transmitted to the pumping unit via a belt. Motor selection adapts to site power and operational needs.

Purification system - Maxifilter
The Maxifilter combines molecular sieve and activated carbon cartridges to remove moisture, oil vapours and contaminants. Positioned after the 2nd and 3rd stage separators and before the pressure-holding valve, it provides a key barrier against moisture. Filter capacity: 890 m³ (inlet air at 20°C and 200 bar) when using original cartridges.

Frame
Silenced cab-style steel chassis with scratch-resistant powder coating (Black RAL 9005). Compact design with carrying handles to facilitate transport and maintenance access. Modular mounting points allow addition of options such as C-monitor and remote charging panels.

The details that matter
Compact, transportable layout with easy access for maintenance; stainless-steel fluid connections and high-heat-dispersion cylinders extend service intervals; modular accessory compatibility for site-specific configurations.

Standard Equipment

• 2 cylinder connections (choose: DIN 232, DIN 300 or INT/YOKE 232 bar)
• 2 filling hoses, 1.2 m each
• Pressure-holding valve
• Filter system Maxifilter (with original cartridges)
• Carrying handles
• Frame color: Black RAL 9005

Compatible accessories (selection)

• C-monitor
• Single-pressure remote charging panel
• Double-pressure remote charging panel
• ColTrimix
• Cylinder connections DRV DIN 232 / DRV DIN 300 / DRV INT/YOKE 232 bar
• Cylinder connection adapter DIN 232 ↔ INT/YOKE
• Fill hoses: 1.5 m, 2 m, 3 m (7/16")

Characteristics / technical specifications

• Denomination: Smart
• Range / Line: Efficient Line (breathing air compressors)
• Pumping unit: 3-stage high-pressure monoblock
• Materials: AISI 316 pipes/fittings/nuts; die-cast aluminum cylinders with Nicasil coating; forged aluminum connecting rods; forged steel crankshaft; stainless steel valves on 2nd and 3rd stages
• Lubrication: spray lubrication with tang immersed in oil
• Filtration: suction filter 10 µm; Maxifilter purification system (molecular sieve + activated carbon)
• Maxifilter capacity: 890 m³ (inlet at 20°C and 200 bar)
• Bearings: heavy-duty roller bearings; hardened steel third stage with 5 special cast-iron segments
• Safety: safety valves after each stage; intermediate and final condensate separators
• Motor options: single-phase or three-phase, 3–5.5 kW
• Standard cylinder connections: DIN 232 / DIN 300 / INT YOKE 232 bar
• Standard accessories included: two 1.2 m filling hoses, pressure-holding valve, carrying handles
• Frame: silenced steel cab chassis, powder coated Black RAL 9005