Introduction
Stainless steel sheet is high quality steel, which requires high precision high quality slitting Stainless steel, such as SUS200, SUS300, SUS400 series, compared with normal carbon steel Yield strength ≤270Mpa Tensile strength≤465Mpa, STS has better strength.STS sheet surface is bright, should be well protected in slitting and recoiling process, the transmission rollers will be rubber coated.
Product Details
Model Name: Automatic High Speed High-Precision Slitting Line for Stainless Steel 3X1600
Composition and Characteristics of sts coil slitting line
1.Very Strong decoiler and coil opening press roller and peeler shoveling plate, to hold steel coil steadily in time of steel strip being pulled out, and send strip head into pinch feeding equipment.
2.Slitter: slitter stands, shafts, knives are bigger and stronger than normal slitter. Drive motor power is about 50% more than normal model slitter.
3.All transmission rollers are PU rubber coated to avoid STS sheet surface from scratch.
4.Accumulator pit loop is longer and deep enough to make sure steel strip accumulating.
5.Tension provision unit own both roller and wool felt to provide adjustable stable tension for recoiling.
6.Recoiler has portal frame type overarm separator, from top to press separating strips.
7.Slitting speed usually are limited within 80m/min.
8.Slitting knives will be special material H13K, SLD,etc.
9.Hydraulic system, such as hydraulic cylinders, valves, should be robust and more durable.
Parameters:
| Description and Specification | |
| Raw Material | AISI 409, AISI 430, AISI 201, AISI 304, AISI 310, AISI 316, AISI 321, AISI 904, AISI 2205 and etc
Tensile strength σb≤800N/mm2, yield strength ≤450N/mm2 0.3-3.0 x 300-1600mm x 15T coils |
| Finished product | 3mm thickness, max 12 strips; ≤1.5mm，max 30strips
Minimum 30mm width, Φ508mm， Φ1600mm， Φ508mm inner diameter， Φ1600mm outer diameter， max 15T weight |
| Slitting Machine | active slitting or pull slitting, DC drive
Slitting speed: max 180m/min. Threading speed: 0-15m/min Total 400KW, land area 30m x 10m |
| Slitting precision | Slit widths tolerance≦0.10mm,
Slit camber≦0.5mm/m for strip of wider than 300mm, ≦1.0mm/m for strip of <300mm Slit burrs ≦0.05mm Recoil staggering ≦±0.5mm Recoil turriform ≦±2.0mm |
| Composition | V-shape Coil saddle, Coil-loading——Cantilever mandrel uncoiling——Coil-head-feeding, press & shoveling——Double-roller pinch feeding, five-roller leveler——End-cutting—-Hole accumulator1 —- Side guide—-Disc slitting（double slitters）——Scrap reeling——Hole Accumulator 2—— Pre-separator/Tensioner/post shear/length-measuring roller——Coils press & separator/recoiler —— Coils-discharging——Hydraulic control——Electric control |
Composition:
| Composition | Characters and Parameters |
| Coil Cars | Welding boy, V saddle, four pillar guide, hydraulic up-down, motor drive walking |
| Uncoiler | Single expansion teeth staggering mandrel, AC motor gear transmission uncoiling back tension, hydraulic central aligning, paper peeling |
| Coil head opener | Snubber roll, straightening roll and shoveling plate |
| Preleveler | Double pinch rolls and 2 over 3 leveler to straighten coil plate, and a hydraulic shear |
| Loop pit | One pit situated after preleveler and before slitter, the other pit after slitter and before tension, to synchronize steel strip |
| Side guide | To ensure steel strip in center of the line before slitting |
| Slitter | Double arbors, the upper arbor up-down adjusting, motor and gearbox drive universal joints, need disc knife, spacers, PU rubber, bakelite strip plates tooling. |
| Scrap winder | Double winders at ear of the line, either horizontal or vertical, AC frequency controlled, with strips checking table and pressing roller |
| Tensioner | Felt press tension, encoding deflector roller |
| Separators | Twice separators before tension, Hydraulic press separator frame on recoiler |
| Recoiler | hydraulic expansion recoil mandrel, motor and gearbox drive, hydraulic coils pusher, swaying door support |
Machine Made Materials and Quality:
We take use of Good materials, famous brand parts, high precision machining, good painting and this satisfy customers.
| Part | Material, Processing, Brand |
| shaft, axis, roller | 42CrMo，HB250-275 |
| Slitter arbor | 42CrMoforging, HB280-300, surface MF HRC50-55, hard chrome coating, surface polishing |
| Frame, bases | Q235-A ,Q345（16Mn） steel plates welding, annealing treatment |
| Gearbox body | Q345 plates welding, heat treatment, sand blasting, primer painting |
| Gears： | 40Cr forging steel, HB240-255, teeth face hardened, teeth ground |
| Uncoiler Recoiler Segments： | 55# Cast steel, tempering, hard chrome coating and polishing |
| Hydraulic pump | Yuken pistion variable pump |
| PLC | Siemens S200 |
| Bearing | HRB, ZWZ, SKF |
| Pneumatic parts | Airtac，SMC |