32” Sendzimir Cold Reversing Mill (Used)

Specifications:

Material: Aluminum, All Grades

Minimum Yield Strength: 11,000 PSI

Maximum Yield Strength: 45,000 PSI

Minimum Strip Width: 16"

Maximum Strip Width: 32"

Coil I.D.: 20"

Maximum Coil O.D.: 72"

Coil Build-Up Ratio: 3.6:1

Mill Configuration: Z-High

Mill Section: ZR 67-32

Maximum Roll Separating Force: 512,000 Lbs.

Pinion Stand Ratio: 1.25:1

Strip Speed: 0 / 1,000 / 1,500 FPM

Work Rolls:

Work Roll Design: Standard Axially Located

Hydraulic Work Roll Lifters: Included

Intermediate Rolls:

Maximum Intermediate Roll Diameter: 7.7"

Nominal Intermediate Roll Diameter: 7.35"

Minimum Intermediate Roll Diameter: 7"

Lateral Adjustment Range: 4.5"

Intermediate Roll Bending: Crown-In / Crown-Out

Intermediate Roll Lateral Adjustment: Hydraulic

Side Support Rolls:

Maximum Side Support Roll Diameter: 3"

Nominal Side Support Roll Diameter: 2.88"

Minimum Side Support Roll Diameter: 2.76"

Side Support Rolls: (2) Per Work Roll

Hydraulic Cluster Arm Preload: Included

Backup Rolls:

Roll Face: 37.5"

Maximum Backup Roll Diameter: 29"

Nominal Backup Roll Diameter: 27.875"

Minimum Backup Roll Diameter: 26.75"

Features:

Hydraulic Screwdown

Intermediate Roll Bending

Hydraulic Intermediate Roll Lateral Adjustment

Oil Mist Intermediate Roll Bearing Lubrication

Work Roll Thrust Doors

Mae West Blocks

Adjustable Side Support Beams

Paper L.H. Winder

Technical Details / Additional Information:

Work Rolls:

Standard design work rolls are axially located by thrust bearings mounted on the front and rear work roll doors. The upper work roll can be supported during threading by hydraulically operated work roll lifters.

Side Support Rolls:

Each work roll is supported by two side support rolls, one on the entry side and one on the delivery side. The rolls are fitted with anti-friction bearings housed in chocks located in the cluster arms.

Side Support Cluster Arm Assemblies:

Each side support roll is backed up by two rows of side support bearings mounted on fixed shafts. The shafts are mounted within cluster arms supported on pivot shafts spanning from the drive-side intermediate roll chock to the operator-side intermediate roll chock. Each cluster arm is hydraulically actuated for preloading of the insert.

Intermediate Rolls:

Two intermediate rolls are provided, one between each work roll and the backup rolls. The intermediate rolls are alloy forged steel and fitted with anti-friction bearings. Drive is provided from the mill motor through the gear reducer, pinion stand and drive spindles. Intermediate roll chock bearings utilize oil mist lubrication.

Intermediate Roll Bending:

Full roll bending with crown-in and crown-out adjustment is provided by double-acting cylinders located between the upper and lower intermediate roll chocks. These cylinders also provide counterbalance for the upper intermediate roll assembly.

Lateral Adjustment of Intermediate Rolls:

Intermediate roll axial adjustment is hydraulically actuated. Mill shape can be adjusted through the taper reliefs at opposite ends of the intermediate rolls. Dual-cylinder lateral adjustment housings and a cross-bar arrangement provide lateral force to the upper and lower intermediate rolls on the operator side.

Work Roll Doors:

Front and rear work roll thrust doors contain the work roll thrust bearings. The front door is manually unlatched and opened for work roll insertion and removal. The rear door is opened when rear thrust bearing replacement is required. The front work roll thrust bearing must be removed when changing the insert.

Mae West Blocks:

Mae West blocks are mounted at passline height on the window face of the four housing posts. They incorporate the upper backup roll balance cylinders, provide lateral support for the intermediate roll chocks, provide mounting faces for the intermediate roll chock keeper plates, support the work roll thrust door hinges and latches, and provide mounting surfaces for the intermediate roll change actuator and rails.

Side Support Beams:

Side support beams are permanently mounted to the Mae West blocks between the operator and drive sides. The beams can be adjusted in and out relative to the mill vertical centerline to accommodate the roll grind-down range. Positioning is accomplished through vertically driven wedges synchronized by mechanically linked Duff-Norton jacks.

Current Status:

Line Currently Removed and in Storage