Features
- Lightweight, ergonomic solution
- Handle higher loads due to extruded aluminum body
- Easy to repair, no removing journals to replace bladders
- Full body length lugs prevent core slippage
- Replaces heavy leaf and lug style shafts
Multi-Bladder Pneumatic Shaft
MB Series
The EMT MB Series Multi-Bladder Shaft is equipped with individual full-length lugs positioned symmetrically around the shaft body. Each lug has an expandable bladder underneath it and when the bladder is inflated, the lugs extend out of the shaft body and grip the core. An air valve is located at the end of the shaft in an axial or radial position, depending upon application. As an option, the shaft can be equipped with an EMT Rotating Union for continuous air supply. Each shaft is custom manufactured per application requirement with a range of core diameters.
Applications
- Utilized in both unwind and rewind applications
- Ideal replacement for 5” and 6” core shafts to reduce shaft weights, ergonomic solutions
- Multiple core applications
- Slitter and turret rewind applications
- Can be used for either cardboard or plastic cores
Specifications
Technical Specifications of Standard Shafts
| Operating Pressure = 80 to 95 psi | Pmin= 80 psi. For reduced operating pressure, consult EMT. |
|---|---|
| Maximum Speed | N = 800 rpm. For higher speeds, consult EMT. |
| Operating Temperature | +50 deg F up to +122 deg F / +10 deg C up to +50 deg C |
Materials of Construction
| Body | Seamless profile | Aluminum or Steel |
|---|---|---|
| Lugs | Application specific | Plastic, rubber or aluminum |
| Journal | Custom | Steel or special material |
| Bladder | Hose | Gum Rubber |
Shaft Diameters
| Core | 3” (76.2mm) | 6” (152.4mm) | 150mm |
|---|---|---|---|
| Body, O.D. | 2.9” (76mm) | 5.9” (150mm) | 148mm |
| Max Expansion | 3.1” (79mm) | 6.1” (156mm) | 156mm |
| No. of Lugs | 3 or 6 | 6 or 10 | 5 or 10 |
*Other core diameters upon customer’s request.
