Balma cleanAIR CNR – oil-free piston compressors

High-capacity oil-free belt-driven compressors in an acoustic enclosure – for the food industry, laboratories and larger users, on a base or a 270 l receiver.

Motor power: 4–15 kW (5.5–20 HP)

Max. pressure: 10 bar

FAD at 5 bar: 492–1860 l/min

Air receiver: 270 l or no receiver

Starting: star-delta

Motor power: 4–15 kW (5.5–20 HP)

Max. pressure: 10 bar

FAD at 5 bar: 492–1860 l/min

Air receiver: 270 l or no receiver

Starting: star-delta

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Standard and optional equipment

Standard equipment 5 · Options and accessories 2

Oil-free pumpNo oil in the compression chamber.
Acoustic enclosureThe compressor sits in a sound-insulated enclosure, suitable for working areas.
Star-delta startingReduces current peaks when starting larger motors.
Belt driveLower pump speed for quieter operation.
Motor thermal protectionSwitches the motor off on overheating and resets automatically once it cools.

Technical data

Parameter	CNR 55/BM S YD	CNR 55/270 S YD	CNR 75/BM S YD	CNR 75/270 S YD	CNR 100/BM S YD	CNR 100/270 S YD	CNR 155/BM S YD	CNR 200/BM S YD
Part number	4116002314	4116002315	4116002317	4116002316	4116002318	4116002319	4116002320	4116002321
Air receiver [l]	no receiver	270	no receiver	270	no receiver	270	no receiver	no receiver
Version	stationary
Free air delivery (FAD) at 5 bar [l/min]	492	492	666	666	930	930	1332	1860
Intake volume [l/min]	918	918	1146	1146	1470	1470	2292	2940
Power [HP / kW]	5.5 / 4	5.5 / 4	7.5 / 5.5	7.5 / 5.5	10 / 7.5	10 / 7.5	15 / 11	20 / 15
Speed [min⁻¹]	1500
Power supply	400 V 3~ 50 Hz
Max. pressure [bar]	10	10	10	10	10	10	10	10
Compression	single-stage
Lubrication	oil-free
Drive	belt
Starting	star-delta
Sound power [dB(A)]	62	62	62	62	64	64	65	67
Dimensions (L × W × H) [mm]	1442 × 808 × 871	1753 × 808 × 1315	1442 × 808 × 1752	1752 × 808 × 1315	1442 × 808 × 1752	1752 × 808 × 1315	1442 × 808 × 1614	1442 × 808 × 1614
Weight [kg]	228	303	244	319	256	331	530	544

Benefits

Up to 1860 l/min FAD

Large oil-free piston compressors from 5.5 to 20 HP for industry and larger users.

Completely oil-free

No oil in the pump – clean air for dentistry, laboratories and food.

Acoustic enclosure

All CNR versions come in a quiet enclosure suitable for working areas.

Star-delta starting

Lower current peaks when starting motors from 4 to 15 kW.

Food and beverage

No oil contamination

Air for packaging machines, beverage filling and pneumatic valves where oil must never touch the product. Oil-free compressors remove that risk.

Laboratories

Analysis and testing

Quiet, oil-free air for analysers, test rigs, pneumatic valves and autoclaves. A small compressor can stand right in the room where you work.

Dental practices

Oil-free air

Clean, dry and quiet air for dental chairs and dental laboratories. Choose the oil-free compressor by the number of workstations.

Production hall with industrial machines

General industry

Working and control air

For smaller plants and maintenance workshops with occasional or intermittent demand. For continuous, high demand a screw compressor is the better choice.

Compressors