Drying & blow-off · Slot-nozzle air
Ring Blower for Air Knife System
Air Knife System duty, sized right: high-velocity slot air for drying, blow-off and separation. Real Yash models, oil-free where it matters, ISO 9001:2015 and built in Faridabad since 1998.
- Duty
- high-velocity slot air for drying, blow-off and separation
- Airflow
- 150–900 m³/hr
- Pressure
- +250 to +550 mbar
DTYFeeding an air knife the right way
An air knife turns blower air into a thin, high-velocity sheet through a narrow slot to strip water, blow off debris or separate parts as product passes underneath. The trick is that a blower does this far more efficiently than compressed air: a ring blower delivers a large volume of low-pressure air continuously, and the knife's converging slot accelerates it into a hard curtain. So the duty is steady flow at a moderate positive pressure — enough to hold slot velocity across the full knife length. Single-stage ring blowers suit most drying and blow-off knives; longer knives or higher line speeds want the extra head of a two-stage or high-pressure ring blower.
Yash ring blowers give air-knife systems a continuous, oil-free, low-pressure supply that undercuts compressed-air running costs dramatically, at a fraction of the energy. Single-stage, double-stage and high-pressure options cover every knife length. ISO 9001:2015, made in Faridabad, sized on slot length and target velocity, quoted in 24 hours.
SZESizing note
Size flow on total slot area to hold exit velocity along the whole knife, and pressure on the slot gap and stand-off; a plenum feed evens the curtain. Running a blower here typically saves most of a compressed-air knife's energy bill.
Indicative only — final selection depends on your exact duty point, altitude and air temperature. Send the numbers and an engineer confirms the model.
MDLRecommended models
Real Yash models whose published specifications sit inside this machine's duty window. Every figure is from our catalogue — click any model number for its full datasheet.
Single Stage Turbine Blower
Full range →Continuous oil-free low-pressure air for drying and blow-off knives — holds slot velocity at a fraction of compressed-air cost.
| Model | Power | Flow (m³/hr) | Flow (CFM) | Vacuum (mbar) | Pressure (mbar) | Noise (dB) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| YEBL-1-530 | 7.5 HP | 530 | 312 | -300 | 320 | 80 | 62 |
| YEBL-1-700 | 7.5 HP | 700 | 412 | -200 | 180 | 81 | 66 |
Double Stage Turbine Blower
Full range →Higher head for longer knives and faster lines where a single stage cannot hold the curtain across the full slot.
| Model | Power | Flow (m³/hr) | Flow (CFM) | Vacuum (mbar) | Pressure (mbar) | Noise (dB) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| YEBL-DS-320V | 7.5 HP | 320 | 188 | -440 | 500 | 73 | 70 |
| YEBL-DS-520 | 15.0 HP | 520 | 317 | -430 | 660 | 74 | 123 |
FAQRing Blower for Air Knife System — FAQs
- Why use a blower instead of compressed air for an air knife?
- A ring blower supplies a large, continuous volume of low-pressure air that a converging air knife turns into a hard curtain — at a fraction of the energy compressed air costs. For continuous drying or blow-off it typically saves most of the running cost while giving a steadier, more uniform curtain.
- What size ring blower for an air knife?
- Size the flow on total slot area to hold exit velocity along the whole knife, and the pressure on the slot gap and stand-off distance. A YEBL-1-530 or -700 covers most single-knife drying duties; long knives or high line speeds move up to a two-stage YEBL-DS blower for the extra head.
REFExplore further
RFQ / Request for Quotation
Sizing a ring blower for your Air Knife System?
Send your duty point (150–900 m³/hr at +250 to +550 mbar), the machine make and your site voltage — an engineer sizes the exact model and quotes within 24 hours.