1. Raw Material:

Steel grade:       Q235

Thickness:   2.5～4.0mm

Coil inner diameter:φ508～φ600

Coil out diameter: ≤φ1900

Coil weight: ≤10T

Automatic decoiler – Feeding - Leveling - Punching and cutting - Roll forming - Product packing manually

2. The Structure of Machine

l Automatic expansion decoiler

1) Double unrolling machine,  

2) Adopt automatic expansion system, power 2.2kw  

3) Maximum coil weight: 10,000kg,

4) inner diameter: 450-600mm, out diameter max 1900mm  

5) with brake system.

l Feeding & leveling

wall plate type 9 rollers leveler, 2 roller feeding, 7 roller leveling. Leveling roller 120mm, material 40Cr, heat treatment HRC48º～52º. Four stand roller to control sheet up and down movement. Power: 11kw, inverter adjusting, speed: 10-25m/min, feeding width max 500mm. 

l Punching and cutting:

1) Use four column type press from Yangli group, equip with punching and cutting die set, fit for 9 or 10 holes. With one set of middle hole punching, cylinder dia 160mm, traveling distance: 60mm

2) Cut to length by encoder: length accuracy 4320±2.0mm, length can set in PLC.

3) Fast feeding unit: after cutting, sheet feeding into roll forming unit, 2.2kw, roller Dia: 120mm, material 40Cr, HRC48º～52º.

l Roll forming machine

1) Main motor power: 45kw

2) Drive: gearbox driving, 10units, GY230  

3) Main shaft diameter: 80mm and 40Cr steel

4) Roller material: GCR15 quenched 58°-62°, chromed

5) Roll station:12 stations

6) Speed: 2-3pieces per minute (4320mm length)

l Output table

l Control panel

a. Control system

Ø Voltage, frequency, phase: 380v, 50hz, 3phase

Ø Automatic length measurement: One-unit tooling of length measuring which is lightly pressed on the surface of the steel sheet; the tolling will roll with the moving speed of the steel sheet and then sense to measure its length.

Ø Automatic quantity measurement

Ø Computer used to control length & quantity, machine will automatically cut to length and stop when required quantity is achieved

Ø Length inaccuracy can be amended easily

b. Control panel: button-type switch, touch screen

c. Unit of length: millimeter

d. Protection function

Ø Motor over: Load protection

Ø System over: Current protection

Ø Short circuit protection

e. Additional function

Ø Display total length produced

Ø Display total quantity produced

Ø Display forming speed