J-Magnetics-A reliable magnetic separation equipment solution provider!
Contact :Joshua Shen
Email: joshua@j-magnetics.com
Add: Yueyang Tower District, Yueyang City, Hunan Province, China.
Mandrel
Pay-off Reel
A pay-off reel feeds thin steel plate through the production line. It unwinds a coil into the downstream line. It is also called a decoiler or unwinder.
A tension reel winds up steel plate to form a coil again. The force needed to do this is much higher than with a pay-off reel. A tension reel is also called a winder or coiler.
The design of a coiler/ decoiler includes a main shaft, a spreader and three or four segments. The spreading action is done by means of a hydraulic cilinder with rotating joint.
Refurbished aluminum coil pay-off reel in workshop
Mandrel for 1580mm hot rolling project in Ma Anshan Steel (Fourth Rolling Mill)
Basic Parameters
Coiling Temperature | 300～800℃ |
Coiling Speed(max) | 20.15m/s |
Steel strip weight(max) | 28000kg |
Steel strip thickness | 1.6（1.2）～12.7mm； |
Steel strip width | 800～1450mm |
External Diameter of Steel Strip | ☉1100～☉2100mm |
Roll length of Mandrel | 1650mm |
Expansion Diameter of Mandrel | ☉762 |
Expected Expansion Diameter of Mandrel | ☉745 |
General Shrinkage Diameter of Mandrel | ☉727 |
Mandrel Type | link rods type |
Expansion Hydraulic Cylinder of Mandrel | φ390×φ180×53.9/(total journey) |
Expansion-shrinkage Cylinder speed | 50mm/s |
Working Pressure of Hydraulic Cylinder | 13 MPa |
Equipment type: optimum design according to the client’s requirement.
Strip Material: stainless steel coil, mild steel coil, aluminum coil.
The uncoiler and recoiler are robust design and manufactured, capable for coil weight 10-30ton per coil.
Low cost, good quality, short delivery time.
