The 2- mandrel uncoiler ( it also called hydraulic uncoiler,twin mandrel uncoiler and double mandrel uncoiler) loads the next hot rolled coil/cold rolled coil / galvanized steel coil onto the unoccupied mandrel while the other coil is feeding the mill. The mandrel decoiler ‘planetary’ rotation type allows the operator to prepare the new coil offline.
The rotation of uncoiler is driven by a hydraulic motor.
The mandrels are hydraulic cylinder actuated for expansion /collapse by pushing button operation
The mandrel segments are provided with standard pads,which can load the ID coil with 508mm/610mm
The hold down roller coated with PU and side contain roller are provided. It facilitates opening the head of the steel coil saftely and smoothly.
The uncoiler of each mandrel can load Maximum 5 Ton steel coil with strip width from 25mm to 398mm
Moreover ,The pneumatic brake system is provided,which can brake the uncoiler when the steel coil is going to run out or emergency.
The ‘planetary’ rotation of uncoiler is driven by a hydraulic gear motor.
ERW25--ERW127 welded tube mill typically is equiped with the 2-mandrel uncoiler
The 2- mandrel uncoiler is composed of
(1)The Electro-welded steel base
(2)the hydraulic cylinder .
(3)the wedge type mandrel
(4)hold down roller with PU and side contain roller
(5)slewing bearing
(6)hydraulic motor
(7)console remote control
(8)hydraulic station
(9)Pneumaticsystem and pneumatic brake
(10)the cable and wiring between uncoiler and console
The beneft : 2- mandrel uncoiler
(1)The Mandrel is composed of the wedge block and segement that ensure the load the steel coil stably.
(2)The side contain roller prevent the steel coil from falling,this ensures the operator safety.
(3)The uncoiler without any malfunction and minimal maintenance is required,which ensure the maxmum up-time smooth and trouble free.
(4)The uncoiler is Robust and strong :which result in the long service life.
(5)Installation is easy thanks to the space saving and foundation-free design.
(6)Minimized energy consumption.
(7)Thank to the high automation ,It is easy operate the uncoiler.
The single mandrel uncoiler is working with ERW89--ERW165 welded tube mill.
The uncoiler can load Max.15 T coil.The mandrels are hydraulic cylinder actuated for expansion /collapse by pushing button operation
The uncoiler is is AC motor driven for coil jogging by pushing button operation
The uncoiler can load Maximum 10Ton steel coil
The single mandrel uncoiler is composed of
(1)The Electro-welded steel base
(2)the hydraulic cylinder .
(3)the wedge type mandrel
(4)AC motor
(5)console remote control
(6)hydraulic station
(7)pneumatic system and pneumatic brake
*8) the cable and wiring between uncoiler and console
(9）hold down roller coated by PU
The double cone uncoiler ( it is called double mandrel uncoiler,double mandrel expending uncoiler),which typically fitted with ERW welded tube mill that manufacture 165mm---273mm diameter tube .the uncoiler can bear Max.20tons steel coil
Function : To uncoil the strip and maintain the required tension during feeding the strip into tube mill production line.
The description:
•l2 mandrels are provided, whose expansion/collapse is actuated by hydraulic cylinder
•lThe mandrel segements are provided with metal pad.
•lLeft and right uncoiler housings shift for coil centering via individual hydraulic cylinder actuation with linear absolute encoder electronic position feedback.
•The uncoiler is fitted with coil loading car.the coil is delivered to the uncoiler and centered by the coil loading car automatically and thread-up sequence initiation.
•The rotating of mandrel is driven by geared motor for coil jogging
•Automatic threading and constant tension control during tube mill run.
•The uncoiler is fitted with the pneumatic brake
The uncoiler is composed by
(1) the base
(2)the housing,
(3)the hydraulic cylinder
(4)the geared motor.
(5)the pneumatic brake
(6)the mandrel
(7)block arm
