P3H air cooling system small diameter axial fans for HVAC/R
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Small axial fan impellers cover the 300-600 mm class, where a compact blade has to move a large air volume through a tight engine bay or a dense radiator core.
The small impeller class is the hardest working part of the range. Engine compartments have grown denser with each emission stage, while the space left for the fan has shrunk, so a 300-600 mm impeller often has to do the job that a larger fan did on previous machine generations.
Three blade families cover this class: the fixed-angle H Series for stable duty points, the PMAX high-pressure blade on its plate hub for tight engine bays, and the 4XR aluminium blade for high-temperature zones. All three share the H hub family, which keeps the shaft interface and the service procedure consistent across a machine platform.
| Series | Blade type | Blade count | Diameter range | Blade materials | Hub family | Product page |
|---|---|---|---|---|---|---|
| H Series | Fixed angle | 5-12 | 180-745 mm | PAG / PAGAS / ALU | H-6 to H-12 | H Series axial fan blades |
| PMAX Series | Special high pressure profile | 9 | 180-700 mm | PAG | PMAX plate hub | PMAX Series fans |
| 4XR Series | Adjustable (angle disc) | 5-12 | 180-700 mm | ALU (ADC12) | H-6 | 4XR Series blades |
Blade count, material and hub are selected together against the duty point, so a single platform can be tuned for airflow, pressure or noise without changing the mounting.
Blade material is selected from the working temperature and from the atmosphere around the impeller:
| Material | Composition | Temperature range | Typical duty |
|---|---|---|---|
| PAG | PA6 with 30% glass fibre | -40 °C to 110 °C | Heavy-load cooling, anti-aging, general engine cooling |
| PAGAS | PA6 with 15% carbon fibre and 15% glass fibre (conductive) | -30 °C to 100 °C | Dust and gas atmospheres where static discharge must be avoided |
| ALU | Die-cast aluminium ADC12 | -40 °C to 150 °C, short-term 300 °C for 2 h | High-temperature and fire-resistance zones |
The conductive PAGAS option is supplied for equipment working in explosive-risk atmospheres such as dust or gas. It addresses the working environment of the blade; machine-level certification remains the responsibility of the equipment builder.
Blades are supplied with matched hub sets. The hub carries the blade loads and sets the shaft interface, so it is selected together with the blade count:
| Hub type | Weight | Hub diameter |
|---|---|---|
| HUB H-6 | 0.27 kg / set | 96 mm |
| HUB H-8 | 0.41 kg / set | 133 mm |
| HUB H-10 | 0.57 kg / set | 172 mm |
| HUB H-12 | 0.805 kg / set | 206 mm |
This series is normally specified for the following duties:
Engine radiator cooling on tractors and construction machinery
Cooling in narrow engine bays with limited shroud clearance
Agricultural machinery working in dust and high ambient temperature
High-temperature zones where aluminium blades are required
When a fan is being specified or replaced, the following points are confirmed before a blade set is released. They are the same checks used for OEM programs and for retrofit projects.
Duty point: airflow and static pressure required at the working speed, taken from the cooling pack or ventilation requirement
Installation: available diameter, shroud clearance, mounting pattern and the shaft interface of the existing hub
Environment: maximum air temperature, dust or gas atmosphere, and whether static discharge has to be avoided
Drive: available power, belt or direct drive, and whether the fan has to reverse in service
Service: blade weight for handling during maintenance and spare-part availability across the machine fleet
Blade count, profile and material are then matched to those conditions in a fixed order: material first, then blade count, then hub family, with diameter confirmed against the shroud. Working in that sequence keeps the mechanical interface stable when the duty requirement changes later in the project, and it is why the same blade family can often stay in production while the cooling pack is revised.
Small impellers are moulded to a controlled geometry and balanced on a hand laser balancing machine before shipment, with the blade material batch recorded against the model so a replacement set matches the original.
Blade count, blade profile, hub family and material can be customized for OEM programs, and existing fans can be reviewed when airflow, noise or durability has to be improved on a running machine. Where the cooling pack sits close to exhaust or turbo components, the aluminium 4XR blade is normally specified instead of a moulded blade.
Related ranges: PMAX3 fan blade | P3H fan blade | S1H sickle blade fan.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The PMAX6 is a special high-pressure axial fan blade on the PMAX plate hub in PAG; diameter and blade count are quoted per project against the cooling pack.
The PMAX6 is a special high-pressure axial fan blade on the PMAX plate hub in PAG; diameter and blade count are quoted per project against the cooling pack.
The 1XL is a fixed-angle axial fan blade for small-diameter fans, produced as a replacement blade set with the diameter and blade count confirmed against the existing fan.
The 1XL is a fixed-angle axial fan blade for small-diameter fans, produced as a replacement blade set with the diameter and blade count confirmed against the existing fan.
The 2H is a fixed-angle axial fan blade for small-diameter fans, supplied as a replacement blade set with the diameter and blade count confirmed against the existing fan.
The 2H is a fixed-angle axial fan blade for small-diameter fans, supplied as a replacement blade set with the diameter and blade count confirmed against the existing fan.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
Inquire NowThe S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
Inquire NowThe PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
Inquire NowThe 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
Inquire NowThe 4XR is a small-diameter axial fan blade in die-cast aluminium ADC12 for high-temperature zones: 180-700 mm, 5 to 12 blades on an H-6 hub with adjustable angle disc.
The P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe P3H is a fixed-angle axial fan blade covering 173-745 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe S14H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6, H-8 or H-10 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
Inquire NowThe S16H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-8, H-10 or H-12 hubs, in PAG or conductive PAGAS.
The S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
Inquire NowThe S1H is a fixed-angle axial fan blade covering 180-700 mm with 5 to 12 blades on H-6 or H-8 hubs, in PAG, conductive PAGAS or die-cast aluminium.
The PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
Inquire NowThe PMAX3 is a special-profile axial fan blade for high static pressure: 180-700 mm with nine blades on the PMAX plate hub, in PAG.
The PMAX6 is a special high-pressure axial fan blade on the PMAX plate hub in PAG; diameter and blade count are quoted per project against the cooling pack.
Inquire NowThe PMAX6 is a special high-pressure axial fan blade on the PMAX plate hub in PAG; diameter and blade count are quoted per project against the cooling pack.
The 1XL is a fixed-angle axial fan blade for small-diameter fans, produced as a replacement blade set with the diameter and blade count confirmed against the existing fan.
Inquire NowThe 1XL is a fixed-angle axial fan blade for small-diameter fans, produced as a replacement blade set with the diameter and blade count confirmed against the existing fan.
The 2H is a fixed-angle axial fan blade for small-diameter fans, supplied as a replacement blade set with the diameter and blade count confirmed against the existing fan.
Inquire NowThe 2H is a fixed-angle axial fan blade for small-diameter fans, supplied as a replacement blade set with the diameter and blade count confirmed against the existing fan.