Secomak 451/2 High Velocity Blower
A belt-driven high velocity blower giving up to 953 m³/h and 126 mbar on a 3.0 kW three phase motor. For drying, blow-off, and process air where pressure matters.
At a glance: The Secomak 451/2 is a belt-driven high velocity blower that delivers up to 953 m³/h and up to 126 mbar from a 3.0 kW three phase motor. It suits air knife drying, blow-off, cooling, and process air, and needs very little maintenance thanks to its sealed bearing assembly. Hurll Nu-Way supplies and services Secomak blowers in Australia.
High pressure air from a compact blower
The Secomak 451/2 is a high velocity centrifugal blower: low volume, high pressure air from a compact, belt-driven unit. It delivers up to 953 m³/h of air and up to 126 mbar of pressure from a 3.0 kW three phase motor. It gives the highest pressure in the 451 family and the most flow in the 451 family.
The 451 sits between the 428 and the 492, giving higher pressure than the 428 from a similar compact frame. The 451/2 already gives the most flow and pressure in the 451 family. For more, step up to a larger Secomak model; our engineers can size it.
The fan chamber is machined from aluminium, and the drive belt and sealed bearing assembly keep maintenance to a minimum. It runs on a 50 Hz or 60 Hz supply. Secomak has built industrial fans and blowers in the UK since 1930, and every blower is hand built and tested before it leaves the factory.
Key advantages
- Belt drive with sealed bearing assembly
- Fan chamber machined from aluminium
- High pressure from a compact footprint
- Very low maintenance
- Runs on 50 Hz or 60 Hz
- Hand built and tested in the UK
Secomak 451/2 specifications
- Peak flow 953 m³/h
- Peak pressure 126 mbar
- Motor 3.0 kW
- Power supply 415 V three phase (rated 380 to 480 V), 50 or 60 Hz
- Run current 6.2 A
- Weight 36 kg
- Noise level 82 dB(A) at 1 m
- Drive Belt drive, sealed bearing assembly
Compare the 451 family
| Model | Peak flow (m³/h) | Peak pressure (mbar) | Motor (kW) |
|---|---|---|---|
| 451/1 | 680 | 116 | 2.2 |
| 451/2 | 953 | 126 | 3.0 |
Figures from Secomak. Peak flow and peak pressure are the two ends of each model's performance curve, not a single duty point.
Secomak 451/2 datasheets and brochures
Secomak's current datasheet for the 451/2, with the performance curve and dimensional drawing.
Secomak Model 451/2 1 document
Spare parts and service
Blower spare parts
Bearing assemblies, belts, impellers, and motors for the Secomak 451/2, sourced through Secomak. Send us the serial number for part numbers and lead times.
Ask about spare partsBlower overhaul and service
Our technicians overhaul and service industrial blowers on site or in our workshop, and commission new installations.
Book a blower overhaulSecomak 451/2 FAQs
What flow and pressure does the Secomak 451/2 give?
Up to 953 m³/h of air and up to 126 mbar of pressure. These are the two ends of its performance curve: peak pressure at low flow, and peak flow at lower pressure. The datasheet shows the full curve.
What power supply does the 451/2 need?
A 415 V three phase supply (it is rated 380 to 480 V, 50 or 60 Hz), drawing 6.2 A.
How much maintenance does a belt-driven Secomak blower need?
Very little. The bearings are in a sealed assembly, so routine care is checking belt tension and wear. Our technicians can overhaul Secomak blowers when the bearings or belt need replacing.
Who supplies and services Secomak blowers in Australia?
Hurll Nu-Way, based in Glen Waverley, Victoria, supplies Secomak blowers and gas boosters, and overhauls and services blowers on site or in our workshop. Call 1300 556 380.
Page last updated October 2026.
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