Aluminium Air Shaft
Lightweight air shaft with an extruded, anodised aluminium body; journals are CNC-machined to the customer's drawing.
Air Shafts
Steel Air Shaft
Balanced steel air shaft made from cold-drawn tube with a hard chrome finish, for heavy rolls and demanding lines.
Product images
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Technical specifications
| Type | Slotted type |
|---|---|
| Standard diameters | 3" |
| Special diameters (to order) | Other sizes to special order |
| Length | Up to 5000 mm on special request |
| Body material | Special-alloy cold-drawn tube |
| Surface treatment | 100 µm hard chrome plating |
| Gripping elements | Steel lugs, induction-hardened |
| Journal hardness | 45–50 HRC (special steel) |
| Journal manufacture | CNC-machined to customer drawing |
| Journal coating options | Chrome, nickel, phosphate, zinc (on request) |
| Balance | Balanced |
| Warranty | to be verified |
Values are taken from manufacturer sources and may vary by order.
Rows marked “to be verified” show differing source values; they will be confirmed.
Datasheet (PDF) — Datasheet in preparation.
Overview
The steel air shaft is a slotted-type air shaft whose body is made from special-alloy cold-drawn steel tube. The steel body carries the load reliably where heavy rolls and high torque are involved. Its surface is hard chrome plated to protect it against corrosion and wear.
The lugs that grip the core are made from steel and induction-hardened against wear. The shaft journals are made from hardened special steel and CNC-machined to the customer’s technical drawing. At the end of production, the shaft is balanced. Standard and special diameters, length ranges and warranty details are listed in the table below.
Features
- Slotted-type body made from special-alloy cold-drawn steel tube
- Hard chrome plated surface for protection against corrosion and wear
- Steel lugs, induction-hardened
- Journals made from hardened special steel and CNC-machined
- Journal finishes such as chrome, nickel, phosphate and zinc on request
- Balanced body
- Low maintenance requirement; maintenance is simple when needed
- Special diameters and lengths to customer request
Applications
The steel air shaft is used on winders and unwinders handling heavy rolls, on paper, packaging and plastic film lines, and wherever high torque has to be transmitted. It is preferred on lines where the shaft is positioned with a hoist or handling equipment and its weight is not an ergonomic drawback. See our paper page for application examples. If you need a lighter body, see our aluminium air shaft.
Requesting a quotation
To prepare your shaft correctly, we need:
- Core inner diameter
- Overall and usable shaft length
- Roll weight, width and maximum roll diameter
- A dimensioned drawing of the shaft journals, or the machine drawing
- Line speed and torque to be transmitted
- Quantity required
You can send your request through our contact page.
Related products
Image pending
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Light, stiff air shaft with a carbon fibre body, for lines that need to cut both weight and deflection over long lengths.
Friction Shaft
Friction shaft that balances tension differences between rolls in slitting and winding applications.
Knife Shaft
Knife shaft for clean, precise cuts on slitting lines, in mechanical and pneumatic versions.
Leaf-Type Air Shaft
Leaf-type shaft with a wide gripping surface for a secure hold and balanced centring, suited to thin-walled cores.
Self-Centring Air Shaft
Self-centring air shaft that aligns the core with the shaft axis for a secure grip and balanced running.
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