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Long Length Slitter Folder

Main Features

The long length slitter folder is controlled by PLC control system, it can slit steel thickness max 1.6mm and stainless steel thickness max 0.8mm. We Big Will Industrial Limited (BWIL) import  the same technical from Australia, it is advanced slitter folder in China market with good quality and better price.135degree bending angle, slit out no need waste material automatically. This long length slitter folder match E-stop button, when urgent accident happen, operator press down for safe. Backgauge system is good for measure and bending different angles.

Machine Specification

Type: BW-6500

Working length 6500mm

Number of Heads 7

Fold Cylinders 7

Clamp Cylinders 7

Bending range 0 to 135 degrees

Throat depth to Slitter 1100mm

Folding Apron 14mm working face

Jaw face width 34mm

Hinge 7points Parallelogram linkage

Jaw/apron operation Hydraulic double acting cylinder

Cycle time approx. 8 seconds for maximum fold variable

Gauging method Variable 0.40mm to 1.60mm by adjustment

Folding Capacity

Material yield Strength G550

Thickness 1.6mm

Stainless Steel 0.8mm

Slitter Unit

Type Overarm Mounted

Knife Diameter 80mm

Material D2 Hardened and Ground to 60 – 62Rc

Drive System Electric motor and wire rope

Guiding System Large section linear guide

Cutting speed 720mm per second

Cycle time approx 23 seconds for full 8.2 meter slit


Control Feature

Automatic Functions Angle Range of 0 to 135 degrees

Safety Features: E-stop circuit,

Full Length Kick rail

Electric interlock

Two stage clamping

Emergency stop


Automatic Control System

The Automatic Control System is a fully integrated control that allows the operator to

pre-program and store up to 1000 profiles. The operation of the control is simple and

reliable. All the backguage positions and fold angles are easily programmed and

stored. After the machine finishes each bend, the backgauge moves to the next

required position in the sequence. The backgauge can be set for slitting operations

also. The HMI is a flat screen, touch panel to display all information in a graphical

format which is very user friendly. The graphical interface allows the operator to up

load programs from drawings of commonly used profiles. This control also has

network capability.


Backgauge Systems

The backgauge systems utilize fully integrated control components providing accurate

material positioning, and eliminate the requirement to mark the fold and slit positions

on the material.

The backgauge control systems use purpose built linear guide rail assemblies,

featuring steel reinforced timing belts and aluminium pulleys, transferring drive from

a geared motor with flux-vector drive, giving highly accurate positioning. The

backgauge assembly features multiple fingers per station to ensure the material is

straight when pushed into the machine. The backgauge operates across the full width

of the machine and is able to measure material sizes down to 10mm. Most profiles can

be produced using the material positioning system without any manual measurement

of material.

Hydraulic Speed Control

Clamp and apron speed control allows the operator to fine tune the speed of the folder.

Using parameters on the ACS software, the operator can adjust the

Clamp approach speed, Clamp speed, Clamp raise speed, and the speed up and down

of the folding apron. The idle speed of the pump is also adjustable to give quiet and

efficient operation.

Removable Hardened Strip in Top Beam

The top beam on the folder is able to be fitted with a hardened strip on its working

edge. The strip is made from tool steel (in 500mm sections) and hardened for

optimum wear life, and is replaceable in the case of damage.


Fold it into the shape what you need


Adjustment for material thickness

This is a fore and aft adjustment by means of eccentric pivots at the rear of the

machine and best done by two people.

1. Loosen the cap screw at the main pivot position;

2. Lower the Clamp Beam so it just sits on the Lower Beam.

3. Fit a spanner on the pivot shaft flats and rotate to move the Clamp Beam backwards.

Then move the Clamp Beam forward (this takes up slack).

4. When all the eccentrics have been adjusted and the cap screws tightened apply

Clamp pressure and check the gap between the edge of the bed and the front edge of

the Clamp Beam. (Must be parallel).

5. Fold test piece and make minor adjustments to give uniform bends. For over bend

take the beam back and under bend bring the beam forward ensuring it is set for

material thickness

NOTE: If set for maximum thickness the use of thinner material with that setting will

produce a slightly larger radius. If using thicker material than distance between Apron

and front edge of Clamp beam (in clamped position) machine can be strained.