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.
Fixed-angle fan blades are moulded with the blade pitch set by the tool: the impeller is supplied ready to mount, with no pitch mechanism to adjust in service. UTEK-DELE builds them in the 180-745 mm range on H family hubs, in PAG, PAGAS or ALU.
A fixed-angle fan blade has its pitch built into the mould. The blade cannot be adjusted after assembly, which removes the pitch mechanism, the locking hardware and the setting procedure from the fan. On machines where the cooling requirement is known and stable, that simplification is the point: fewer parts, less to service, and a repeatable impeller every time a blade set is replaced.
UTEK-DELE manufactures fixed-angle blades as the H Series, covering the 180-745 mm class with five to twelve blades on H-6, H-8, H-10 and H-12 hubs. Blade material is chosen from the working temperature and atmosphere, so the same blade geometry can be supplied in moulded PAG, conductive PAGAS or die-cast aluminium for high-temperature zones.
| Model | Blade type | Blade count | Diameter range | Blade materials | Hub options | Product page |
|---|---|---|---|---|---|---|
| P3H | Fixed angle | 5-12 | 180-745 mm | PAG / PAGAS / ALU | H-6 / H-8 / H-10 | P3H fixed angle fan |
| S14H | Fixed angle | 5-12 | 180-700 mm | PAG / PAGAS / ALU | H-6 / H-8 / H-10 | S14H fixed angle fan |
| S16H | Fixed angle | 5-12 | 180-700 mm | PAG / PAGAS | H-8 / H-10 / H-12 | S16H fixed angle fan |
| S1H | Fixed angle | 5-12 | 180-700 mm | PAG / PAGAS / ALU | H-6 / H-8 | S1H sickle blade fan |
| 1XL / 2H | Fixed angle | Quoted per project | Quoted per project | PAG / PAGAS / ALU | H family | Quoted on request |
Fixed-angle blades are the standard choice for high-volume machine platforms, because the impeller can be released for production once the duty point is confirmed and no pitch setting is needed on the assembly line.
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
Engine cooling in narrow engine bays with limited shroud clearance
Agricultural machinery working in dust and high ambient temperature
Replacement blade sets for existing fixed-angle fan assemblies
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.
Fixed-angle blades are moulded to a controlled geometry, then assembled with a matched H family hub and balanced on a hand laser balancing machine before shipment. Because the pitch is set by the tool, a replacement blade reproduces the original impeller without a setting procedure in the field.
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 duty point changes with operating conditions, an adjustable-angle blade is the better match; fixed-angle blades are specified when the cooling requirement is stable and service simplicity matters most.
Related ranges: H Series small impellers | PMAX Series high pressure fans | 4XR Series aluminium blades | P Series adjustable fans.
The blade models below are produced in this blade family. Each product page covers the specifications, materials and replacement details; blade sets are quoted with the hub so the shaft interface is confirmed at the same time.
| Model | Product page | Diameter | Blade count | Hub |
|---|---|---|---|---|
| P3H | P3H Fixed Angle Axial Fan Blade | 173-745 mm | 5-12 blades | H-6 / H-8 / H-10 |
| S14H | S14H Fixed Angle Axial Fan Blade | 180-700 mm | 5-12 blades | H-6 … H-12 |
| S16H | S16H Fixed Angle Axial Fan Blade | 180-700 mm | 5-12 blades | H-6 … H-12 |
| S1H | S1H Fixed Angle Axial Fan Blade | 180-700 mm | 5-12 blades | H-6 … H-12 |
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 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 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 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 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.