Additional equipment for automatic coil sheet cutting lines

Professional sheet metal and tool handling with VENTOR. Flexible production systems and press automation are the modern range of Coiltech products.

Sheet metal shears

This is the heart of the cutting line. Depending on the section, the type of materials to be processed and the required cutting speed, pneumatic, hydraulic or mechanical shears are selected. Quality workmanship will allow minimal burrs when cutting and reduce the frequency of sharpening.

  • Economical pneumatic shears are designed for fast and accurate cutting of thin and delicate metals: aluminum or polished stainless steel, copper, silicon steel, etc. They are limited to sections of less than 650 mm².
  • Hydraulic shears are used for cutting heavy profiles or strips with high yield strength. They can be equipped with hydraulic pressure.
  • Ultra-fast mechanical guillotine shears type 1730 with crankshaft can reach speeds of up to 200 rpm. They are designed for incorporation into production lines. The frame, which is transparent under the blades, allows direct placement of blanks without an intermediate conveyor.

Sheet end shearing

Recommended for wide or thick sheets, adding shears after a straightening machine or feeder allows the ends of sheets to be cut off in complete safety. The shear helps reduce production changeover time: it allows easier removal of the cutting tool and facilitates rewinding and splicing operations. Available in widths from 300 to 1525 mm.

Stackers

Coiltech offers an economical range of simple and efficient stackers. Stacking lengths can reach 5 m, with widths adjustable up to 2000 mm. The stacker can be supplemented with a pneumatic impulse device. The stack is built on one or more elevator tables equipped with servo control for automatic stacking at a constant level.

What accessories are worth choosing in a feeder line and why?

Functionality

Accuracy of operation

The straightener-feeders are driven by a servo motor, which ensures the highest precision in feeding. Measurement of the feed length (stroke) is performed by an encoder, which is in constant contact with the belt, thanks to a pneumatic cylinder.

Cushioned movements

The rectifier’s motor drive has been replaced by a large brushless motor. All Coiltech straighteners are equipped as standard with a belt feed measurement sensor to ensure the same feed accuracy as the feeders themselves (± 0.05 mm). Achievable speeds range from 100 to 150 Cpm, for a max speed of 30 to 50 m/min.

Pressure roller release

Efficient pressure roller release will allow the pilots of the progressive cutting tool to work properly. In all Coiltech units, the basic release function, is implemented by pneumatic or hydraulic control, to raise the traction rollers and set the motor torque to zero.

In the PIN option, a sharper release is provided by partially opening the top of the head by means of two servo-controlled hydraulic cylinders. For more sensitive applications, digital servo release will be adopted.

In this configuration, the head opening cylinders are mounted on an eccentric shaft driven by a servo motor. All release parameters are then programmable. Coiltech straighteners use most of the options offered for individual straighteners or feeders.

Advantages

Cohesive design

The straightener-feeder is a device that can be used wherever a small space is available. Thanks to its compact design, it fits where classic lines do not fit, offering equally high precision work…

Function control

The operator can enter data on the control panel keypad and check it on the display. Additional inputs and outputs via electronic cams are available to control functions such as lubrication, ejection of workpieces (extra forward stroke, then return), pneumatic valves in the tool, waste cutters at the belt exit, etc.

Device synchronization

Another advantage of straightening-feeder machines is, first of all, the synchronized drive of all lower working rollers and both feeding rollers. Thanks to this position of the rollers, their work coincides exactly with the data shown on the measuring instruments. This completely facilitates the operator’s work and thus ensures safety during the process.

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