100 %drive efficiency
Shaftless motor
The rotor is keyed directly to the compressor shaft: no belts, no tensioning, no coupling checks and no alignment. A belt drive loses 5–7 % when new and up to 12 % when worn.
- Compressors
- High-pressure compressors
- Belliss & Morcom
An Ingersoll Rand business · Redditch, United Kingdom
Oil-free air & gas compressorsEvery detail
matters
Oil-free reciprocating compressors and boosters from 4 to 90 bar for PET bottle blowing and industry. A shaftless motor with 100 % drive efficiency, the diagonal V and W design and water-cooled motors mean lower energy bills and more uptime.
Manufacturer since1852- Delivery pressure
- 4–90bar
- Max. flow (FAD)
- 3,282m³/h
- Drive efficiency, shaftless motor
- 100%
- Between services
- 8,000h
- Oil-free air to ISO 8573-1 (TÜV)
- Class 0
Every specification matters
Belliss & Morcom series
Every series is oil-free, water-cooled and driven by a shaftless motor. Figures below are summarised from the 2026 brochure tables (50 Hz, ISO 1217).
PET · V design
VH
Three-stage V compressor with cylinders at 60° – maximum oil-free capacity in the smallest footprint.
- Pressure
- 30–40 bar
- Flow (FAD)
- 420–1,510 m³/h
- Power
- 70–242 kW
- Models
- 7
PET & industry · W design
WH / W370
Double-acting W design for large flows: three-step capacity control 0–50–100 % and lower power consumption.
- Pressure
- 5–45 bar
- Flow (FAD)
- 1,566–3,220 m³/h
- Power
- 183–525 kW
- Models
- 13
Industry · 20–40 bar
VM130
Compact three-stage V130 units for process air and gases at medium pressure.
- Pressure
- 20–40 bar
- Flow (FAD)
- 402–564 m³/h
- Power
- 60–101 kW
- Models
- 2
Industry · 4–45 bar
VM250
The versatile V250 platform: two-stage for 4–14 bar, three-stage up to 45 bar.
- Pressure
- 4–45 bar
- Flow (FAD)
- 720–2,340 m³/h
- Power
- 85–275 kW
- Models
- 7
37
models in the selector
Enter pressure and flow and see which Belliss & Morcom models fit.
Open selectorIndustrial range
Three pressure classes
Beyond PET, the industrial range covers low, medium and high pressure – for air and, with positive inlet pressure, for gases.
- Low pressure8 two-stage models, V8-2N to W370-45-2N4–14 bar
- Medium pressure13 three-stage models, V130, V250, W370 and W54010–45 bar
- High pressure3 models V290M, V660M and V780M20–90 bar
Gas boosters
With positive inlet pressure the compressors work as boosters for air and gases – more flow at the same motor size.
- Inlet pressure
- up to 18 bar
- Delivery pressure
- up to 40 bar
- Flow
- up to 13,093 m³/h
- Absorbed power
- up to 449 kW
Oil-free nitrogen boostersUp to 45 bar, suitable for bone-dry nitrogen – for food & beverage, pharma, electronics, oil & gas and chemicals.
Model selector
Which Belliss & Morcom fits your pressure and flow?
Choose the application, inlet, delivery pressure and required flow. The chart shows all 37 models as lines from minimum to maximum delivery pressure; models that deliver your flow without excessive oversizing are highlighted.
Application
Inlet
40bar
1,500m³/h
9 matching models
FAD to ISO 1217, 50 Hz. PET models: catalogue data at 30 and 40 barg (designed for up to 45 barg). We confirm the final choice with a calculation for your site.
Flow vs. delivery pressure
- VH (PET)
- WH (PET)
- Low pressure
- Medium pressure
- High pressure 90 bar
- Your requirement
| Model | Series | Pressure (bar) | Flow (m³/h) | Power (kW) | Motor (kW) | Inlet (bar) |
|---|---|---|---|---|---|---|
| VH25 | VH (PET) | 30–40 | 1,500–1,510 | 224–242 | – | atmospheric |
| W370-28-3N | Medium pressure | 10–45 | 1,566–1,620 | 183–274 | 280 | atmospheric |
| WH28 | WH (PET) | 30–40 | 1,680–1,691 | 239–258 | – | atmospheric |
| W370-29-3N | Medium pressure | 10–45 | 1,728–1,788 | 202–297 | 325 | atmospheric |
| WH29 | WH (PET) | 30–40 | 1,800–1,811 | 250–270 | – | atmospheric |
| WH35 | WH (PET) | 30–40 | 2,120–2,133 | 306–330 | – | atmospheric |
| W370-35-3N | Medium pressure | 10–45 | 2,112–2,178 | 300–373 | 360 | atmospheric |
| W370-40-3N | Medium pressure | 10–45 | 2,208–2,280 | 255–376 | 400 | atmospheric |
Every one percent matters
Unique technology
Patented solutions developed together with customers for the toughest duty – every gained percent of efficiency shows up on the energy bill, year after year.
−29.3 %piston-ring load
Diagonal V & W design
Cylinders inclined at 45° or 60° are dynamically balanced and reduce static piston-ring loading versus horizontal lines – no interim turning of rings.
IP56protection
Water-cooled motor
For high altitude, heat, dust or poor ventilation: 100 % less radiated heat, low noise, maintenance free and suitable for VSD. Connects to the compressor cooling circuit.
−40 %valve losses
High-efficiency valves
Unique design and materials for high pressure: robust across a wide temperature range, up to 12 % lower electricity use and much longer service life.
What does a belt drive cost you?
Brochure formula: absorbed power ÷ drive efficiency × hours × energy price. With the shaftless motor the drive loss is zero.
250kW
8,000h
0.15€/kWh
7%
Energy lost in a belt drive each year
€22,581€225,806over 10 years
151 MWhlost electricity per year
0 €with shaftless motor
Every minute matters
Built for uptime
The diagonal frame removes the parts that need regular maintenance – horizontal cylinder lines and belt drives – so the compressor runs when production needs it.
- 8,000 hBetween servicesOnly one service a year, with key components easy to reach.
- 0Special foundationsDynamically balanced – the floor only carries the static weight.
- 0–50–100 %Capacity controlEfficient 50 % load for tighter pressure bands without a VSD.
- 30–100 %With VSDOptional variable speed drive for unmatched output control.
- 75–95 %Motor service factorEvery motor is specified with its full service factor for its whole design life.
- 5 years+Belliss Xtra warrantyMarket-leading warranty scheme with re-warrant option.
Every bottle matters
Compressors for PET bottle blowing
Belliss & Morcom was there at the birth of PET blow moulding. The VH and WH ranges deliver Class 0 oil-free air at 30–40 bar with the lowest running costs in the industry.
3–14 barg
Air Recovery
Returned air from the blow moulder is fed back into the 2nd (up to 4 barg) or 3rd stage (up to 14 barg).
- Lower compressor energy use
- Easy retrofit to existing plants
- Can supplement LP air
22–30 %
Heat Recovery
Cooling water at around 80 °C pre-heats feed water for heating – savings of 22–30 % of the motor rating in kW; the two water systems do not mix.
± 0.5 barg
AirPET control
Intelligent control for networks of up to 30 compressors of any make.
- AirPRESSURE – main line to ± 0.5 barg
- AirPREDICT – online before demand
- AirSAVE – off or low pressure at weekends
- Live energy, cost and CO₂ data
30–100 %
Variable speed drive
Capacity control from 30 to 100 %, lower starting current, better power factor and repeatable pressure control.
Complete packages and energy audits
VH and WH are supplied with an integral direct-drive motor and need no extra base structure – with starter, PLC control panel, dryer, receiver, filters and drains, as a skid with all pipework and wiring or with acoustic enclosure. Energy audits on request.
Engineered to perform
Where Belliss & Morcom works
Oil-free air and gas is the backbone of today's industry – from hydropower plants to PET lines and nitrogen boosting.
iConn monitoring
Connected platform for real-time data on high-pressure compressors – on screen or in the mobile app.
- Real-time data and insights
- Predictive maintenance alerts
- Fewer unplanned stops
- Lower energy use and CO₂
Protect your investment
Service, parts and Belliss Xtra
Belliss & Morcom supports its compressors for their whole life – with service kits, genuine parts, refurbishment and training. KOMP-R is your local partner.
Lifetime protection with a fixed cost
While the agreement is in place you are covered against unforeseen costs for the life of the compressor.
- Simple contract, no hidden costs
- Unlimited operating hours
- 100 % original spare parts
- Service by factory-trained technicians
- Parts stocked locally
- Proactive compressor monitoring
- One service a year, depending on model
- Immediate cover on compressor and package
One fixed cost
One call
One agreement
Complete peace of mind
Genuine parts
The only parts that meet the manufacturing standards for safe, uninterrupted high-pressure operation and keep your warranty.
Refurbishment
The UK Centre of Excellence in Redditch runs full diagnostics and extends machine life – support for over 30 years.
Training
Factory training from health & safety to in-depth maintenance, at the Centre or on your site.
Global service
Service engineers trained at the Centre, available worldwide, 24 hours a day, 365 days a year.
8,000-hour service kits
Kits tailored to each model with 100 % verified Belliss & Morcom parts – for efficient field service and maintained warranty.
| Compressor | 8,000 h service kit | Valve replacement kit |
|---|---|---|
| VH7 / VH9 | VH7/9H3N-MK2-8K | VH7/9H3N-MK2VALVES |
| VH12 / VH15 | VH12/VH15H3N-ELP8K | VH12/15H3N-VALVES |
| VH18 / VH21 | VH18/21H3N-ELP-8K | VH18/21H3N-VALVES |
| VH25 | VH25H3N-ELP-8K | VH25H3N-VALVES |
| WH28 | WH28H3N-ELP-8K | WH28/29H3N-VALVES |
| WH29 | WH29H3N-ELP-8K | WH28/29H3N-VALVES |
| WH35 | WH35H3N-ELP-8K | WH35H3N-MK2-VALVES |
| WH40 | WH40H3N-ELP-8K | WH40H3N-MK2-VALVES |
| WH45 | WH45H3N-ELP-8K | WH45H3N-MK2-VALVES |
| WH50 | WH50H3N-ELP-8K | WH50H3N-MK2-VALVES |
Belliss & Morcom with KOMP-R
We help with model selection, recovery and control options, installation and commissioning, and provide service and genuine parts in Slovenia and the region.
Compressors
Tell us your requirements and we will propose the right compressor.
Fill in a short form and we will prepare a configuration proposal.
Sizing based on actual consumption
Energy optimization
Installation and service
Where to find us
DirectionsPod lipami 4 · 1370 Logatec, Slovenija