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HOME Workshop and Do-It-Yourself Electric Air Compressors Heavy-duty belt-driven air compressors (50-300 L) 300 litre Belt-drive Air Compressors 4 HP Three-phase Belt-driven 300 L Air Compressors Airmec CR 304

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

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ID: K501569

MPN: 141010210

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Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
FREE
Bottle of 600 ml "COMPRIX" professional oilBottle of 600 ml "COMPRIX" professional oil
no. 8 compressor connectionsno. 8 compressor connections
Air compressor tank
270 L
Max. operating pressure
10 bar
Air intake flow
460 L/min
Cylinder head rpm
900 RPM
Lubrication
Oil
Cooling manifold
Yes
Pump type
Two-stage
Motor type
Induction
Nominal power
4 HP
Operating mode
Three-phase 400 V
Transmission type
Belt
Manufacturing country
Italy
Product Features
Model:
CR 304
Air compressor type 2:
Belt-driven
Air compressor type:
Horizontal
Operating mode:
Three-phase 400 V
Max. operating pressure:
10 bar
Number of tanks:
1
Air compressor tank:
270 L
Noise level:
99 dB(A)
Manufacturing country:
Italy
Motor data
Motor type:
Induction
Nominal power:
4 HP
Silenced:
No
Air compressors engine speed:
900
Power supply:
400 V electric
Pump data
Pump brand:
CHINOOK
Model:
K28 Series
Air intake flow:
460 L/min
Pump type:
Two-stage
Lubrication:
Oil
No. of cylinders:
2
Cooling manifold:
Yes
Cylinders material:
Cast iron
Manufacturing country:
Italy
Transmission data
Belt-driven:
✔
Transmission type:
Belt
Cylinder head rpm:
900 RPM
Transmission protective cover:
Grill
Equipment
No. of outlet couplings:
2
Front handle:
Yes
Free gifts/extra features
Instructions manual:
Yes
Dimensions and logistics
Product dimensions in cm (L x W x H):
170x72x115 cm
Net weight:
153 Kg
Packaging:
Original packaging
Original packaging/s dimensions in cm (L x W x H):
170x72x115 cm
Gross weight (packaging included) :
153 Kg
Assembly time:
Assembled
Prompt Delivery
2 items in stock
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Estimated delivery: 02/05/2024 - 06/05/2024
€ 1.661,41
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Description

Airmec CR 304 K 28 Belt-driven Air Compressor with Three-phase Electric Motor - 270 L

The Airmec CR 304 K28 air compressor is regarded as the best choice among demanding hobbyists and professionals looking for a reliable, durable and high-performing equipment.

Powered by a 4 Hp heavy-duty Speroni electric motor, this air compressor has a compressed air suction capacity of 460 L/min of ì. It is capable of reaching a max pressure of 10 bar.

It features a large-sized compressed air storage tank of 270 L.

The air compressor weighs 153 Kg and can be easily transported thanks to its wheels and the upper handle.

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
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Technical features

Air intake flow: 460 L/min

Pumping unit type: twin-cylinder two-stage belt-driven

Pressure: 10 bar

Electric motor power: 4 Hp

Tank: 270 L


Overall dimensions:
- Width: 1700 mm
- Height: 720 mm
- Depth (or thickness): 1150 mm

Weight: 153 kg

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

4 Hp three-phase electric induction motor

Power supply: 400 V three-phase

Power: 4 Hp
The induction motor is characterised by a very long service life and low maintenance requirements.

This motor is in fact brushless, the brushes being the main component subject to wear in electric motors. The absence of this component grants high durability to the motor.

It is a top product in terms of reliability, low noise, durability, energy efficiency and maintenance.

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

K28 cylinder head

Air intake flow: 460 L/min
Head type: twin-cylinder with cast iron cylinders
Suction type: single-stage
Lubrication: oil
No. of revolutions: 900 rpm

This air compressor comes with cast iron valve plate and reed valves in high-strength stainless steel.

The degree of professionalism and more generally the life of the air compressor is largely determined by the number of revolutions per minute of the cylinder head.

A low revolutions number means low wear and longer life of the air compressor. The reduction ratio of the number of revolutions is obtained by the pulleys of different diameter that are fitted to the motor and to the cylinder head respectively.

Focus on the porthole for oil control

Focus on the side cooling manifold, it keeps the compressed air outlet temperature low.

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

Controls

The Airmec CR 304 K 28 air compressor features easy and user-friendly controls, which are divided into:

Contactor with thermal-magnetic protection

Output air pressure gauge

Tank air pressure gauge.

Air compressor female outlet fittings

Pressure adjusting knob

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

Belt drive

These Airmec air compressors feature a belt drive.

The use of the belt, combined with an induction motor, contributes to the durability of this air compressor, drastically reducing the number of revolutions of the cylinder head, increasing its life and reducing wear.

The grid protection serves to prevent the drive belt and the transmission from being damaged by external objects that might hit it during operation. It also allows the status of the drive belt to be continuously checked.

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

Other features

Three-phase cable

Ergonomic handle

Large sturdy plastic wheels


Front swivelling wheels

Condensate drain valve

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Free items & Standard equipment

1° GIFT: air compressor maintenance kit with oil bottle and joints

Maintenance kit provided on standard equipment includes:

  • Air compressor spare/replacing female output joint

  • Air compressor spare/replacing male output joint (replaceable on equipment with bayonet cap) or usable as spare joint

  • Quick joint to convert all the machineries fitted with standard bayonet cap. It allows easily connecting the units to hoses with female quick joint.

  • Quick joint for converting the female output joint supplied on the air compressor into the traditional bayonet cap (also allows the use of the standard hoses with bayonet system)

  • Repair/Junction fitting for Ø 8 hoses
  • Repair/Junction fitting for Ø 10 hoses
  • Lower tank discharge valve replacement air compressor
  • Teflon roll, ideal for the main maintenance operations
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

2° GIFT: 600 ml "COMPRIX” oil bottle

COMPLIMENTARY: 600 ml "COMPRIX” oil bottle, professional oil specifically designed for air compressor cylinder heads. Very useful for oil refill and first oil replacement (the air compressor is shipped already filled with oil).

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank

Standard equipment

The air compressor is shipped in its original packaging.

Instructions manual included.

Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank Airmec CR 304 K28+S - Belt-driven Air Compressor - Three-phase Electric Motor - 270L Tank
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