ZI de la petite Motte
77220 TOURNAN EN BRIE
FRANCE
- DVAI manufactures your shells with the exact expansion length of your heads for easy assembling
- DVAI can carry out the polishing of your cones and shells
- DVAI can pull down the cones’ edges to manufacture conical heads
1 rolling machine, length: 3000 mm
1 rolling machine, length: 2000 mm
1 rolling machine, length: 1100 mm
2 bending-machines for profiles
- DVAI can supply you shells with the same expansion length as the heads.
- Inside and/or outside shell polishing possibility (contact our sales service)






Possible diameter minimum, given by thickness and length
| Thickness | Maximal length | Ø mini |
| 2mm | 3000 mm | Ø 450 |
|---|---|---|
| 3mm | 3000 mm | Ø 450 |
| 4mm | 3000 mm | Ø 450 |
| 5mm | 3000 mm | Ø 800 |
| 6mm | 3000 mm | Ø 800 |
| 8mm | 3000 mm | Ø 1000 |
| 10mm | 3000 mm | Ø 1000 |
| 12mm | 3000 mm | Ø 1200 |
| 15mm | 2500 mm | Ø 1200 |
| 20mm | 2000 mm | Ø 1200 |
| Thickness | Maximal length | Ø mini |
| 2mm | 2000 mm | Ø 350 |
|---|---|---|
| 3mm | 2000 mm | Ø 350 |
| 4mm | 2000 mm | Ø 450 |
| 5mm | 2000 mm | Ø 450 |
| 6mm | 1500 mm | Ø 500 |
| 8mm | 1500 mm | Ø 550 |
| 10mm | 1000 mm | Ø 500 |
Shorter diameters are possible for shorter lengths: for any question, please contact our sales service

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