Soundproofed ABAC piston compressor - A49B-4-L1T motor 4 kW, intake 598 l/min, pressure 11 bar, no receiver, L1 cabinet, supply 400/50 V/Hz, 89 dB Lwa / 69 dB at 4 m
Code: A49B-4-L1T
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Product detailed description
Silent Line LN · L1 cabinet · 598 l/minThe ceiling of the small cabinet. The A49B-4-L1T has a four-kilowatt two-stage pump and gives 598 l/min at 11 bar — the most of all four machines in the L1 cabinet. The footprint stays 750 × 580 mm and the weight 170 kg, so those forty-five extra litres over the three-kilowatt version cost you no floor space.
Why the strongest machine in the small cabinet
The pump turns at 1,400 rpm instead of 1,300, and that is the whole difference from the three-kilowatt version — same cabinet, same footprint, same weight, 45 l/min more. The noise stays at 89 dB Lwa.
If you need still more air, the small cabinet goes no further: the next machines are already in the L2 cabinet. But that is where a different weight class begins — from 177 kg upwards.
Equipment and details
What the A49B-4-L1T comes with
- two-stage oil-lubricated A49B pump with an aftercooler, V-belt drive, 1,400 rpm
- acoustic cabinet in size L1, sheet-steel panels lined with acoustic foam, each panel removable on its own
- cooling by a pulley whose spokes are shaped like fan blades and drive air onto the cylinders of the pump
- three-phase electric motor, 4 kW, 400 V / 50 Hz, thermal protection, pressure switch
- intake 598 l/min, working pressure 11 bar
- central control panel with main switch, gauge, pressure regulator and hour counter
- no receiver of its own — the machine connects to pipework or to a separate pressure vessel
- weight 170 kg, dimensions 750 × 580 × 761 mm; noise 89 dB Lwa, 69 dB at 4 m
- two-year warranty, a third year for a surcharge
Machine details
Where to go if the A49B-4-L1T does not fit
Calmer and slightly weaker is the B59-4-L1T (570 l/min, 87 dB), more frugal the A49B-3-L1T. In the larger cabinet the range continues with the B59-4-L2T and above. The full overview is in the overview of the ten cabinet machines.
The values apply to a 400 V / 50 Hz supply. Intake is the volume of air the pump draws in. Noise is given as the sound power level Lwa and as sound pressure at 4 m from the machine. A piston compressor works in cycles, not without a break.
Ventilek advises
The maximum that fits into the small cabinet. When this is not enough, the next step means a bigger footprint — not a stronger motor in the same box.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 2 years |
| Compressor type: | Piston compressor |
| Pressure: | 11 bars |
| Suction power: | 598 l/min |
| Air delivery: | 458 l/min |
| Pressure vessel volume: | 27 L |
| Design of pressure vessel: | Integrated |
| Connecting: | Quick coupling DN 7.2 |
| Motor power: | 4.0 kW |
| Mains voltage: | 400/50 V/Hz |
| Speeds: | 1400 rpm |
| Number of cylinders: | 2 |
| Number of grades: | 2 – two-stage compressor |
| Lubrication: | Oleic |
| Noise: | 89 dB - Lwa, 69 dB - Lwp(4m) |
| Dimensions: | 750 × 580 × 761 mm |
| Weight: | 170 kg |
| Accessories: | Silent blocks, Pressure regulator, Quick coupler, Cover |
| Engine: | Electric |
| Soundproofed: | Yes |
| Drive: | V-belts |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
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ABAC is an Italian compressor brand, founded in 1981 and part of the Atlas Copco Group since 2007. We carry machines from a carry-case compressor you lift with one hand, through workshop piston compressors, to industrial and screw machines for an entire hall.
Besides standard oil-lubricated machines, ABAC also makes oil-free compressors for paint shops and surgeries, soundproofed machines in an acoustic cabinet and engine-driven compressors for building sites. They are complemented by ABAC DRY refrigerated dryers, oils and service kits.
Manuals in the AirTube appABAC compressor ranges
ABAC Line — for a standard socket
For tradespeople and smaller workshops. Direct-drive piston machines, from a one-hand carry case to a twin-cylinder unit on wheels.
- 1.1–2.2 kW, 230 V
- intake 160–355 l/min, 8–10 bar
- for work with breaks between cycles
ABAC Pro Line — V-belt drive
Daily work in workshops and service. Oil-lubricated single- and two-stage machines, on wheels, on feet or as a tandem.
- 1.5–7.5 kW, intake 178–2,420 l/min
- 10, 11 or 15 bar
- 50–900 l receiver
ABAC Silent — soundproofed
When the compressor stands next to you. Pump, motor and belt are enclosed in an acoustic cabinet; some machines also house a dryer.
- 81–89 dB Lwa in the cabinet
- on 270 and 500 l receivers or tankless
- 1.5–7.5 kW
ABAC Expert Zero — oil-free
For paint shops, upholstery and food. An oil-free pump with Teflon-coated cylinders, driven by V-belts.
- intake 255–486 l/min, 10 bar
- 50–270 l receiver
- 230 and 400 V
ABAC Tech — industrial
Runs without cooling breaks. Cast-iron pump and an S1 motor rated for a 100% duty cycle, oil-lubricated or oil-free.
- 1.5–15 kW
- 10 to 30 bar
- on a base frame or a receiver
ABAC SPINN and CROSS — screw
When air flows all shift long. Six ranges from a workshop unit to a station for a whole hall, stand-alone or with receiver and dryer.
- 2.2–22 kW, delivery 272–3,090 l/min
- 10 bar, 57–71 dB(A)
- SPV with a variable speed drive
Engine Air — petrol and diesel
Air where there is no socket. Piston compressors with a combustion engine: portable in a frame, on wheels or stationary.
- intake 275–1,038 l/min
- 10–14 bar
- Honda and Kohler engines
Clean Air — dental
For dental surgeries and laboratories. Oil-free 8 bar compressors with an adsorption dryer or in an acoustic cabinet.
- for 1 to 5 dental chairs
- dew point −40 °C with dryer
- 64 dB(A) at 1 m in the cabinet
Not sure which range to pick? The Compressors page has a selection calculator and a table of how much air each tool uses.
Choose a compressorABAC ranges side by side
| Range, use, design, intake, pressure and power supply | |||||
|---|---|---|---|---|---|
| Range | For whom | Design | Intake | Pressure | Power |
| ABAC Line | tradespeople, smaller workshops | piston, direct drive | 160–355 l/min | 8–10 bar | 230 V |
| ABAC Pro Line | daily work in workshops and service | piston, V-belts | 178–2,420 l/min | 10–15 bar | 230 / 400 V |
| ABAC Silent | machine next to the workstation | piston, soundproofed | 255–1,070 l/min | 8–11 bar | 230 / 400 V |
| ABAC Expert Zero | oil-free air | oil-free piston, V-belts | 255–486 l/min | 10 bar | 230 / 400 V |
| ABAC Super Silent OS | quiet work in occupied rooms | oil-free piston, direct drive | 140–230 l/min | 8–9 bar | 230 V |
| ABAC Tech | industry, non-stop operation | piston, S1 motor | 204–1,716 l/min | 10–30 bar | 230 / 400 V |
| ABAC SPINN and CROSS | continuous air demand | screw | delivery 272–3,090 l/min | 10 bar | 400 V, one model 230 V |
| Engine Air | sites without electricity | piston, petrol or diesel | 275–1,038 l/min | 10–14 bar | combustion engine |
| Clean Air CLR | dental surgeries and laboratories | oil-free piston | 240–480 l/min | 8 bar | 230 V |
Intake is the air the pump draws in; less of it reaches the tool. For screw compressors the manufacturer states the delivery.
How to choose an ABAC compressor
1. Work out the air demand
Add up the consumption of all tools running at the same time and add a reserve. Compare it with the delivery, not the intake: on piston machines the delivery is roughly a quarter lower.
2. Match the running time
For work with breaks, a Line or Pro Line piston machine is enough. If air has to flow all shift long, choose ABAC Tech with an S1 motor or a screw compressor.
3. Check power and space
Smaller machines run from a 230 V socket, more powerful ones need a three-phase 400 V supply. In the code of an electric piston machine, M stands for a 230 V motor and T for 400 V.
4. Maintain regularly
On oil-lubricated machines, check the level in the sight glass and drain the condensate after work. ABAC piston pumps have service kits: the basic LK1 for yearly and the advanced PK1 for two-year maintenance.
Frequently asked questions
- Who makes ABAC compressors?
- ABAC is an Italian compressor brand founded in 1981. It is based in Robassomero near Turin and has been part of the Atlas Copco Group since 2007. Its production quality is backed by ISO 9001 certification.
- Piston or screw compressor?
- It depends on running time. A piston machine fills the receiver and rests, so it suits intermittent work in a workshop. A screw compressor is built for continuous operation and pays off where air is used all shift long. For its screw machines ABAC states roughly 30% higher energy efficiency and about 20 dB(A) less noise.
- Which ABAC compressors are oil-free?
- The Expert Zero range, the quiet Super Silent OS, the ATF and ATFS versions of ABAC Tech, the Clean Air dental compressors and the SUITCASE carry case compress air without oil. They suit paint shops, food production, laboratories and surgeries.
- How quiet is an ABAC compressor?
- The rating plate shows the sound power level Lwa; 4 m from the machine you will measure about 20 dB less. Silent machines in a cabinet have 81 to 89 dB Lwa, the quiet Super Silent OS 63 to 65 dB at 4 m and the screw compressors 57 to 71 dB(A).
- Do I need a dryer with my compressor?
- Compressed air always contains water that condenses in the pipework. For painting or a long pipe network you need a dryer: the ABAC DRY refrigerated dryer brings the air to a pressure dew point of +4 °C and comes in 17 sizes from 266 to 18,000 l/min. Some Pro Line, Silent and SPINN machines have a dryer fitted at the factory.
- Where do I find the manual and which oil should I use?
- Manuals and service videos open via the QR code on the machine in the AirTube app. ABAC piston machines use Altair and ABAC Pro oils, screw machines Rotair oils, including the food-grade Rotair Foodgrade. The manual tells you which oil your machine needs.
Manuals and service videos for ABAC compressors are in the AirTube app via the QR code on the machine. Technical data are manufacturer figures. ABAC is a brand of the Atlas Copco Group.