Piston Compressor V-0.25/8 — 70 L, 8 Bar, 220V
8.075,00 MDL
The V-0.25/8 is a professional piston compressor from MZB Compressor (China) with a 70-liter tank, designed for intensive daily use on a single-phase 220V supply.
1. Purpose and Operating Principle
At its core is a two-cylinder V-shaped head: the two pistons operate alternately, which reduces load pulsation on the motor and makes the stroke smoother compared to a single-cylinder design at the same output. Aluminum cooling fins on the cylinders and cast-iron sleeves provide a stable temperature regime and extended service life under heavy loads.
Power from a standard single-phase 220V supply — the key difference from more powerful models in the range (for example, the W-0.36/8 already runs on 380V) — makes the compressor accessible for sites without a three-phase connection: garages, small auto service centers, workshops.
2. Technical Specifications
| Parameter | Value |
|---|---|
| Model | V-0.25/8 |
| Brand | MZB Compressor (China) |
| Compressor type | Piston, V-shaped head |
| Number of cylinders | 2 |
| Free air delivery | 250 l/min |
| Working pressure | 8 bar |
| Motor power | 2.2 kW |
| Supply voltage | 220 V (single-phase) |
| Tank volume | 70 l |
| Drive type | Belt |
| Lubrication | Oil |
| Outlet connection | 1/4″ |
| Length | 1000 mm |
| Width | 390 mm |
| Height | 750 mm |
⚠️ The compressor’s weight is not stated by the manufacturer on the page — confirm with the manager when planning transport.
3. Design Features
Designation Breakdown — V-0.25/8
| Designation element | Meaning |
|---|---|
| V | Head type — V-shaped, two-cylinder |
| 0.25 | Suction displacement, m³/min (≈250 l/min) |
| 8 | Working pressure — 8 bar |
Design Solutions
- Two-cylinder V-shaped head — alternating piston operation reduces load pulsation on the motor and makes the compressor’s stroke smoother
- Aluminum cooling fins on the cylinders and cast-iron sleeves — this combination provides effective heat dissipation and a longer service life for the cylinder-piston group under heavy loads
- 70 l tank — a balance between air reserve (sufficient for motor cooling pauses) and compactness that allows the compressor to be moved around a shop
- Oil lubrication system — reduces part wear and heating compared to oil-free equivalents, increasing the compressor group’s service life
- Automatic pressure switch — precisely controls start/stop cycles, protecting the motor from overload
4. Installation Recommendations
- The compressor plugs into a standard single-phase 220V outlet — make sure the site’s wiring is rated for the 2.2 kW motor’s starting current (a dedicated circuit with an appropriately rated breaker is recommended).
- Install the compressor on a flat, level surface, accounting for its 1000×390×750 mm dimensions; ensure free access to the drive belt and tank drain.
- Provide ventilation around the compressor — cylinder cooling through the aluminum fins is designed for airflow; installation in a tight, unventilated space reduces cooling effectiveness.
- The 1/4″ outlet connection — select fittings to match this size; for connecting several tools simultaneously, use a manifold with a gauge and safety valve.
- Regularly check the crankcase oil level and drive belt tension — timely maintenance directly affects the compressor group’s rated service life.
- The 70 l tank typically doesn’t require separate registration in most jurisdictions, but check local pressure vessel regulations if needed.
5. Cross-References and Comparison
Neighboring Models in the MZB Compressor and Remeza Ranges (Acvatron)
| Model | Power | Output | Pressure | Tank | Voltage | Drive |
|---|---|---|---|---|---|---|
| FL-40 (MZB) | 1.5 kW | 110 l/min | 8 bar | 40 l | 220 V | Direct |
| V-0.25/8 (this product) | 2.2 kW | 250 l/min | 8 bar | 70 l | 220 V | Belt |
| СБ4/C-50 LB30 (Remeza) | 2.2 kW | 340 l/min | 10 bar | 50 l | ⚠️ confirm | Belt |
| W-0.36/8 (MZB) | 3 kW | 360 l/min | 8 bar | — | 380 V | Belt |
Choose the V-0.25/8 when: you need a compressor on a standard household/garage 220V supply, with a moderate tank for frequent duty cycles (painting, tire service, pneumatic tools). If a three-phase supply is available and higher output is needed, consider the W-0.36/8 (360 l/min, but on 380V).
⚠️ Direct cross-reference part numbers from other brands (Fiac, ABAC, etc.) for this model have not been verified. Matching by parameters is possible — send the output, pressure, and voltage you need and we’ll find a match.
6. Common Mistakes
- Connecting without a dedicated power line — the 2.2 kW motor’s starting current can cause a voltage drop on shared household wiring, leading to unstable start-up; a dedicated circuit with a breaker is recommended.
- Ignoring the oil level — the oil lubrication system requires regular checking; running with low oil accelerates wear on the cylinder-piston group.
- Choosing a compressor by output alone, without considering voltage — for example, the visually similar W-0.36/8 delivers more air but requires 380V, which is critical for sites without a three-phase supply.
- No ventilation at installation — reduces the effectiveness of cylinder cooling through the aluminum fins, especially during multi-hour continuous operation.
- Connecting several tools directly to a single 1/4″ outlet — it’s better to use a manifold with multiple ports, a gauge, and a safety valve.
7. Application
- Professional painting — working with HP, LVLP, HVLP spray guns; painting cars, furniture, metal structures
- Pneumatic tools — impact wrenches, pneumatic drills, orbital sanders, cutting tools
- Tire service and auto repair — tire inflation, component blow-off, pneumatic clamps
- Construction work — texture guns, nailers, blow-off
- Light sandblasting — cleaning small parts, glass etching
8. Expert Opinion
“The V-0.25/8 is a good choice specifically for sites without a three-phase connection: 220V covers most garages, small auto service centers, and workshops without extra electrical costs. It’s important not to confuse this compressor with visually similar models in the same range — for example, the W-0.36/8 delivers more air but already requires 380V. If a site has no three-phase supply, the difference in output won’t matter — it’s more important to pick the model that matches the available voltage from the start. During intensive daily use, don’t skimp on checking the oil level — for an oil-lubrication system, that’s the first thing that extends, or conversely shortens, the actual service life of the compressor group.”
Vitali Boluchevski, Lead Engineer, Acvatron SRL, 18 years of experience
9. FAQ
❓ What is the V-0.25/8 compressor and what is it for? The V-0.25/8 is a piston air compressor with a 70-liter tank, a two-cylinder V-shaped head, and a 2.2 kW motor on a 220V supply. It’s designed for professional use: painting, pneumatic tools, tire service, and auto repair.
❓ What pressure does the V-0.25/8 compressor provide? The working pressure is 8 bar — sufficient for most spray guns, pneumatic tools, and inflating truck tires.
❓ Does the compressor run on 220V? Yes, the V-0.25/8 model is designed for a single-phase 220V supply. A three-phase connection isn’t required.
❓ What is the compressor’s actual air delivery? Free air delivery (FAD) is 250 l/min, which provides stable operation of most popular pneumatic tools without pressure drops.
❓ How does the V-0.25/8 differ from the W-0.36/8 in the same range? The W-0.36/8 delivers more air (360 l/min versus 250 l/min), but runs on a three-phase 380V supply, while the V-0.25/8 plugs into a standard single-phase 220V outlet — the choice depends on the voltage available at the site.
