US7234334B1 - Saddle for backing assemblies in a rolling ...

A saddle for a backing assembly in a rolling mill has non-cylindrical bearing surfaces that accommodate wear by allowing the saddles to self-align. The non-cylindrical bearing surfaces help prevent the needle bearings from being pinched and driven into the gear rings. The non-cylindrical bearing surfaces are provided in different locations such as intermediate the eccentric and eccentric ring ...

Used Miscellaneous Mills For Sale | VX Machinery LLC

Sendzimir Mill Sendzimir Mills or Z-Mills are the most flexible and powerful of its kind. Used on both ferrous and non-ferrous metals, the Z-Mill is designed to make significant reductions at higher speeds. The 20-HI roll "cluster" contains 12 rolls and 8 back-up roll assemblies.

HKTCOMPANYINTRODUCTIONHKT COMPANY INTRODUCTION

(Rolling Mill Chock) Backing Bearings ( 20hi SendzimirMills/ Z-Mill /Cluster Mill) ( Sinter& Pellet plants /Pallet Car) ... and Rolling mills, Multiple-row tapered roller bearings, Roll neck bearings, gg,,ear boxes, coilers, finishing equipment

Rolling Mill Stands – IspatGuru

The cluster mill stand has two work rolls and four or more backup rolls. The number of backup or supporting-rolls depends upon the amount of support needed for the work (small diameter) rolls. Cluster mill is normally used in cold-rolling operation. The cluster mill stand can have six …

cold rolling mill used machine for sale

Qty. 1 Second-hand double stand cold rolling mill stand Mfc.: SMS/Germany Type: 4-Hi Double Stand Cold Rolling Mill Built: 2009 Stopped: 2017 Capacity: 800,000 Ton/Year Annual running: 6480 h Strip width: 800 – 1650 mm Thickness entry: 1.8~5.0 mm Exit: 0.3 – 2.5 mm Coil OD: 1000~2200 mm Coil ID: 610 mm Coil Weight: Max. 30 T Line Speed: max. 1350 m/min Threading Speed: 30 m/min

Essential mechanical properties of work roll for effective ...

There are various types of rolls are being used in Cold Rolling Mills according to their usability. They are varying in size shape and materials. The selection of material is dependent upon factors such as hardness, machinability, mechanical properties and strength. The chemical composition and manufacturing style of roll effects a lot in their working efficiency.

Basics of Rolling and Rolling Mills – IspatGuru

Fig 4 Roll configurations in rolling mills. Two-high mill roll configuration – This is the most commonly used rolling mill configuration. In this configuration, there are two horizontally mounted rolls. The rolling mill motor drives either both rolls (top and bottom) or only one roll (normally the bottom roll) with the top roll rotating due to the friction between the roll and the work piece.

Sendzimir Mills | Rolling Mills - Used Forging Machinery

TrueForge proudly specializes in the buying and selling of heavy forging and steel working machinery, including rolling mills. Among our selection of rolling mills are sendzimir mills. We buy & sell used, refurbished or rebuilt forging machinery and equipment. We deliver these items to both domestic and international customers around the world.

4-High Rolling Mills | Metal Processing Machinery ...

4-High Rolling Mills. Four-high rolling mills can be put in tandem, two to seven stands, instead of a reversing mill. They can be equipped with load cells to tell the separating force and hydraulic or mechanical screw downs, depending if it is hot or cold rolling. Sometimes mechanical screw downs are preferred when there is a risk of fire.

A computational method to predict strip profile in rolling ...

A commonly used metric to quantify the strip profile is the strip "crown", denoted C(x).The strip crown is defined as the difference between the thickness, H(0), at the strip center, and the thickness, H(x), at an arbitrary location x, as indicated in the following equation (1) C (x) = H (0) − H (x) Because of end-user requirements to evaluate the difference in strip thickness at the ...

Used Rolling Mills Sendzimir for sale. Sendzimir equipment ...

32" Z-Hi Sendzimir 67-32 Reversing Cold Rolling Mill: RM-449. Manufacturer: Sendzimir 32" Z-Hi Sendzimir 67-32 Reversing Cold Rolling Mill: RM-449 Manufacture: - Sendzimir - Model - used Z-High ZR 67-32 Cold mill - New in 2000 Note: This mill is sold as a mill stand and internals only. Drives an...

Rolling of Metals: Process and Principles (With Diagram)

The rolling process is shown in Fig. 2.1: Rolling is done both hot and cold. It is accomplishes in rolling mills. A rolling mill is a complex machine having two or more working rollers, supporting rollers, roll stands, drive motor, reducing gear, flywheel, coupling gear etc. Rollers may be plain or grooved depends upon the shape of rolled product.

Sendzimir 20 High Rolling Mill - Hani Tech

The overall frame structure of the 20-high rolling mill has the advantages of great rigidity, bearing the rolling force along the entire width of the rolling mill through the backing bearing, and therefore the longitudinal and lateral dimensional accuracy of the strip is high. Therefore, it has been widely used in the cold rolling industry.

Rolling Mills/Z mills

Buy, sell and rebuild second-hand steel mill equipment worldwide. Specializing in hot and cold rolling mills for producing flat and long products; large overhead traveling cranes, continuous casters, process lines, shear andcut-to-length lines, large DC mill motors and equipment take-out and removals.

12-20hi mills / Danieli Fröhling

12-20hi mills DANIELI FRÖHLING's Split Block Mill Stands generally differ from the familiar monobloc or four column designs. In 1985 Danieli Fröhling supplied the world's first Split Block – Twin Housing Cluster Mill with direct hydraulic roll gap adjustment and installations with this design principle have been supplied successfully to the industry since.

SMS group : 20-High mills

20-HS mill rolling mills from SMS Group - technology that pays off. You benefit from our 20-high mills because they are packed with state-of-the-art mechanics, hydraulics, electrics, and automation. Plus: it's easily possible to retrofit these features into existing mills.

Rolling Mills for sale, New & Used | MachineSales

Rolling Mills for Sale ... One used 14" (356mm) WATERBURY FARREL ZR24-14 20HI ROLLING MILL Machine #13919 Manufacturer - Waterbury Farrel Type - Sendzimir 20HI rolling mill Model - ZR24-14 Material - High Carbon and Stainless Steels Configuration . North Branford, CT View Listing.

A BASIC UNDERSTANDING OF THE MECHANICS OF …

Rolls are tools used in rolling mills to reduce the cross section of metal stock. The weight of rolls may vary from a few kilograms up to 250 tonnes. Under rolling conditions the contact area between roll and stock suffers wear, the other parts of a roll - body and necks - have to be considered as normal parts of designed components under high ...

Used Reversing Hot Rolling Mills for sale. Demag equipment ...

39" (1000mm) demag sendzimir 2o high rolling mill Manufacturer: Demag Type of Mill : 20hi Reversing Single Stand cold rolling mill Material to be Rolled : Hot rolled and pickled coil of low carbon steel Mill Origin : Demag - Sendzimir, Germany Present status : Running in good condi...

20 High Mill Rolls, 20 Hi Cold Rolling Mill Rolls ...

20 Hi Mil Rolls We have decades of experience in designing and producing rolling mill rolls. we are the market leader manufacturing industry for 20-High rolling mills roll, these 20 hi mill rolls always made to measure for individual customer requirements and offer an unparallel advantages compared to cost and quality features as compared to our competitors of 20 hi mill rolls manufacturers in ...

What Is A Z-High® Mill? | Metal Processing Machinery ...

Unlike a traditional rolling mill, a Z-High® mill is a 20-high cluster mill configuration that utilizes cascaded supporting rolls to apply force on the small work rolls in the center. This allows the application of a higher roll pressure without bending the work rolls, which would result in …

4 High Rolling Mills for sale, New & Used | MachineSales

4 High Rolling Mills For Sale ... MACHINE 13308 Manaufacturer United Engineering USA Type Mill 4 High Reversing Rolling Mill Coil thickness (as used) 0.0078" - 0.060" (0.2-1.5 mm) Coil width Max 20" (500 mm) Line speed Max 960 fpm (300MPM) Material Stai. North Branford, CT View Listing.

Z-Mill, Sendzimir Mill, Cluster Rolling Mill | Waterbury ...

Z-MILL (20-HI CLUSTER TYPE MILL) The Waterbury Farrel Sendzimir Rolling Mill is the final answer to the need for highly precise, close-tolerance rolled products. Extensive experience in the area has led to the perfecting of these hydraulically-loaded, gauge-controlled mills for a variety of applications.

(PDF) EXPERT SYSTEM FOR ROLLING LOAD PREDICTION IN 20 HI ...

The expert system has been successfully implemented for load prediction in this plant for 20 Hi Sendzimiar Mill. The determination rolling load is very important in this study. The plate having thickness 8 mm has to reduce up to 5 mm slab when friction (µ) given is …

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