Blower-Fed Ring Air Knife, 76 mm Inside Diameter
This annular air knife directs air inward around a circular opening for suitable blow-off, water removal, drying and localized cooling tasks. An external blower delivers air through the side inlet. The listed configuration has a 76 mm inside diameter and is a separate blower-fed family from compressed-air ring wipers. A blower, motor and supply hose are not specified as included in the air-knife price.
Selected Configuration
| Configuration | Original USD | Sale USD |
|---|---|---|
| 76 mm inside diameter / 2.992 in | 1850 | 1480.00 |
The source SKU explicitly states an inside diameter of 76 mm. The attributes describe customization but provide only this one priced selection. The source lists aluminum alloy, stainless steel and PVC as family material possibilities, without uniquely assigning one material/grade to this priced SKU. The product photograph shows a metal-bodied unit. Confirm the actual supplied material, finish and inlet connection before ordering; the listing does not claim all three materials are included or selectable here.
How It Works
A blower supplies the ring plenum through the inlet. Air leaves through the annular outlet gap and acts around the working opening. A cable, tube, profile or suitable part can be positioned in the opening with adequate clearance and correct alignment. Airflow, effectiveness and temperature depend on the blower delivery, losses, slot setting and process conditions. This component is not described as an independent refrigeration source.
Applications and Selection
| Source application | Purpose | Confirm for the actual line |
|---|---|---|
| Wire and cable | Surface blow-off, drying or local cooling around a passing section. | Maximum workpiece size, centering, line speed and safe clearance. |
| Plastic tubing / elongated profiles | Remove droplets or loose debris where the process permits. | Shape, surface sensitivity, required coverage and available airflow. |
| Pipes / line products | Annular airflow around the intended working region. | Installation route and actual ring construction; an opening/split mechanism is not established. |
| Bottles / packaging cans | Supplier-listed surface cleaning and drying uses. | Part geometry, travel path, air cleanliness and the required process result. |
These are source application categories, not proof that one 76 mm unit suits every part or production line. Verify material compatibility and any cleanliness or process-standard requirements. No food-contact approval, fixed cooling capacity, noise level or fixed drying result is established by the supplied files.
Original Drawing Dimensions
| Source drawing callout | Millimetres | Calculated inch reference |
|---|---|---|
| Inside diameter | 76 | 2.992 in |
| Outside diameter | 135 | 5.315 in |
| Mounting-hole pitch-circle diameter | 125 | 4.921 in |
| Inlet diameter reference | 50 | 1.969 in |
| Axial body depth | 63 | 2.480 in |
| Mounting-hole thread | M5 | Metric thread; no inch substitute implied |
| Family outlet-gap reference | 0.1 | 0.00394 in |
The original drawing shows six mounting locations with an M5 callout. Confirm hole depth, fastener length, mounting pattern and the supplied unit before drilling or fastening. The 50 mm inlet is a drawing diameter reference, not a complete specification of a matching hose or clamp. Confirm actual connection dimensions. Inch values are calculated from 25.4 mm per inch.
The 0.1 mm outlet-gap callout comes from a family close-up showing an alternate inlet style. Confirm the actual slot and inlet configuration for the selected 76 mm unit. Do not adjust or disassemble the ring based on a family photo alone. The source does not provide a confirmed pressure/flow curve, blower power requirement, rated operating pressure or temperature limit for this SKU; those values are not taken from a different compressed-air product.
Blower and Installation Checks
- Confirm the 76 mm opening is suitable for the intended product envelope and required clearance. Verify how the ring will be installed on the line.
- Confirm body material, slot, inlet dimensions, mounting drawing and allowable operating conditions for the supplied unit.
- Select a compatible blower using verified delivery pressure and flow after hose and fitting losses; obtain the actual operating requirements before sizing.
- Mount the ring securely without distorting its body or outlet gap. Route the supply hose to avoid kinks, leaks and interference.
- Align the working part and contain removed water or debris. Start under controlled conditions and measure the actual process result.
- Isolate the blower/supply and make the installation safe before cleaning, changing connections or servicing the ring. Avoid damage to the narrow outlet.
Supply Scope and Selection Support
One selected 76 mm inside-diameter ring air knife is priced. Different family views and inlet styles illustrate construction references; they do not mean several rings are included. Confirm supplied fittings and mounting hardware. A blower, motor, hose/clamps, electrical controls, machinery, workpieces and line equipment are not specified as included.
For a selection check, send workpiece diameter/shape, line speed, drying or blow-off task, available blower pressure and flow, inlet/hose requirements, mounting space and material requirements to boltte@boltte.com.
Original Product, Drawing and Application Images
The original white-background product photo, clear opposite-face/side views, outlet-gap reference and original 76 mm drawing are retained below. Application categories and installation checks are explained above. Product shape and original dimension lines are preserved.
Modelo / configuración / SKU
| Modelo / configuración | SKU |
|---|---|
| 76 mm ID (2.992 in) - Blower-fed ring air knife | 5215641984049 |