The abrasive dosage via small conveyor belt that is known to everyone by now is a Perndorfer development. This smart, smoothly adjustable abrasive technology is part of all 2D and 3D abrasive water jet cutting plants. It permits control of the abrasive amount during cutting as well. An abrasive accumulation or lack of abrasive are reliably recognised and assessed. The interim tank above it is made of either stainless steel or perspex.
The Perndorfer sludge removal consists of two screws – a horizontal one in the cutting tank and a vertical one outside of the cutting tank that fills the mobile collection tank with the sludge. The Perndorfer sludge removal is maintenance-free and reliable, needs little energy and little space.
Automatic Abrasive Sand Conveyor
The sand conveyor removes the garnet sand right from the big bag. Therefore, the pressure tank does not have to be filled manually and the heavy sand big bags need not be lifted. Continuous transport of the abrasive is ensured by a sophisticated chamber system with the suction line always being monitored. The maintenance is facilitated by a washable "NeverClog" dust filter bag.
60° Cutting Head/Diagonal Cut Compensation
Since the cutting head is very compact and light in weight, it can be easily installed at cantilever machines and regular Z-axes.
This cutting head offers all the benefits of A-B kinematics: The focus (Tool Centre Point) is not specified via the cutting head kinematics. Thus, the tool length can be changed easily via the control. This permits installation of differently long cutting heads, as it is necessary when switching from abrasive to pure water systems or for differently long collimation pipes and focussing pipes from different manufacturers.
Since these kinematics need no space for a rotating C-axis, a very small cutting head distance can be reached in multiple-head plants. Turning out of the C-axis is excluded as well.
The 3D cutting head ±60° is equipped with a safe work room monitoring. A safety housing is therefore not needed.
The 60° head can also be limited to approx. ±12° and thus act as a pure diagonal cutting compensation (SSA). A special algorithm analyses the contours and ensures precisely rectangular cuts.
Full 3D Cutting Head
The full 3D cutting head entices with its great mobility. The B-axis can swivel at angles of up to ±120°.
The C-axis can be turned endlessly. Cables and hoses are not turned along. This is ensured by a special turning penetration for the abrasive transport and the fact that all supply lines are in the middle axis. The servo motors are placed externally.
The full 3D cutting head is perfect for processing dished ends and for all cutting tasks that require processing freely in the space.
Drilling Unit: Standard and 18,000 rpm
The water jet may delaminate sensitive materials such as fibreglass-reinforced plastics or various sandwich materials when tapping. To prevent this, a start bore is placed before cutting. This way, the water jet can penetrate the material unhindered. Depending on application, a standard drill with 3,000 rpm or a high-performance drilling spindle at 18,000 rpm is available for this.
Lifting Tables with Zone Structure
Lifting tables have the benefit that cutting underwater is possible in one zone, while equipment above water is possible in another. The lifting tables can be coupled via the control without mechanical effort, so that the operator has the entire cutting range of both tables available.
The control lifts and lowers the lifting tables quickly and fully automatically.
The lifting table system needs less space than change table systems and there is a much larger available cutting area.
Water Level Regulation (WNR)
The water jet would cause continuous increase of the water level in the tank. This is prevented by the water level regulation by Perndorfer, which raises or lowers the fill level quickly and automatically by approx. 80 mm. This way, you can cut under water – almost soundlessly.
The best water level is automatically calculated via the material thickness. Adjusting of overflow valves and similar things is not necessary.
Loads up to 1,000 kg can be lifted quickly and reliably with the Perndorfer vacuum lifting tool.
A laser pointer installed at the Z-axis can be used to find and accept the desired starting point. The user may use another SW function to run along the contour or a surrounding rectangle of the nesting with the laser pointer as well. This function ensures secure alignment of the contour even if the pipe material is scant.
Pipe Turning Device
The flatbed water jet cutters by Perndorfer can also be equipped with a pipe turning unit with which pipes with a diameter of 50 to 300 mm can be processed precisely. The length of the pipes is individually adjusted with a support system. Programming is user-friendly as usual.
Control / CAM
The water jet cutter plants by Perndorfer use user-friendly and high-performance digital controls with EtherCAT interface by ProCom and NUM – depending on requirements to the machine. The special machines use NUM as well as controls by Siemens, B&R and Beckhoff.
We also rely on the highly efficient and user-friendly CAM tool by Lantek.
Our cutting software is user-friendly and offers, among others, a high-performance auto nesting function (also for several cutting heads), a reliable and precise module for calculation of the cutting costs and practical modules for chamfering and pipe cutting.