Belt compressor 50 L - 3 HP and 320 L/min at 10 bar
50-litre belt-driven compressor
The logical entry point to the world of belt-driven compressors: 50 litres, 3 HP and 10 bar, in a size that still moves around the workshop without any trouble.
Compared with a direct-drive compressor at roughly the same price, you are not buying more flow here: you are buying hours of life. The belt lets the head turn at half the revolutions, and a lubricated cast-iron head turning slowly withstands daily use that would burn out a direct-drive compressor in a couple of seasons.
✅ Main advantages
Belt transmission: designed to work every day, for many hours.
10 bar maximum pressure compared with the usual 8 bar.
320 L/min of sustained flow.
Lubricated cast-iron head: dissipates heat and can be repaired.
50 litres on wheels: professional yet manageable.
🏗️ What it is for
Mechanics and bodywork workshops with daily use.
Impact tools, ratchets and light pneumatic sanding.
Spray painting and finishing.
Professional carpentry and assembly.
📋 Technical specifications
Voltage: 230 V
Power: 3 HP
Maximum pressure: 10 bar
Flow rate: 320 L/min
Speed: 1,420 r.p.m.
Air tank capacity: 50 litres
Transmission: belt
💡 Professional tip: the most expensive mistake when commissioning a belt-driven compressor is starting it without removing the crankcase transport plug or without checking the oil level. Many arrive without oil from the factory to avoid spills in transit. Look at the sight glass before the first start-up: thirty seconds running dry is enough to seize the head, and the warranty does not cover that.
Frequently asked questions
What is the difference between this belt-driven compressor and a direct-drive one?
Here the motor drives the head through a belt and pulley, so it turns at 1,420 r.p.m. and withstands daily use better. It delivers 320 L/min at 10 bar with 3 HP.
Do I need a three-phase supply?
No. It is single-phase at 230 V and runs from a 230 V socket. Given its 3 HP power, ask your electrician to confirm that the line and its protections are suitable.
What should I do before the first start-up?
Check the oil level in the sight glass and remove the crankcase transport plug. According to the specification sheet, many units arrive without oil from the factory and starting dry can seize the head.
What tools can it run?
With 320 L/min and up to 10 bar it is suitable for impact wrenches, ratchets, blow guns and spray painting. A continuous pneumatic sander may need more flow; always compare with the consumption stated by the tool manufacturer.
What are the 10 bar of maximum pressure for?
They give you headroom compared with the usual 8 bar: they compensate for pressure drop in hoses and filters. At the nozzle you will work at a lower pressure, which you set with the filter regulator.
