|Kurtz Gravity Casting Machines|
The Core Pull Makes The Difference
On the whole, gravity casting is the classical casting process. Practiced for hudreds of years, it still offers potential for improvement. Kurtz has developed a machine concept especially for jobbing foundries. Due to the modular machine design this concept can be universally employed. What is needed is fl exibility with respect to the most varied castings. A conversion must be possible without great effort. And Kurtz machines easily meet these requirements. By adding core pulls and additional closing units, the basic machine is even suitable for the demands of highly complex castings.
|The maximum expansion stage of the basic concept is the socalled tandem machine. Two casting dies are run in phase on one machine. This leads to increased productivity with the added advantage of little space requirement and few personnel.|
The movable hydraulic unit offers possibilities as a mobile control and hydraulic power unit for controlling the casting die’s closing and opening motions for up to two casting machines.
All gravity casting machines are equipped with the tried and tested control system, which is also being employed in other machine types. The machine programme controls the process sequence and motion of the core pulls. In addition, linking the machine control with an external control system for the process management of a complete casting cell offers application possibilities in large-scale production as well.
Mobile hydraulic unit with integrated control unit to operate up to 2 machines
Kurtz tiltable Gravity Casting Machines
Controlled Filling for Maximum Quality
|Just as the Bavarian expertly pours his Weissbier in the glass, Kurtz casting machines fi ll the molten metal into the mould with low turbulence. The freely programmable tilting rate allows an optimum fi lling rate. This guarantees high quality and takes irregularities out of the process.|
In contrast to gravity casting, tiltable casting offers the advantage of a clear reduction in returns. This is achieved with the utilization of the casting contour as a cast-in system and a reduced gating area. At the end of the fi lling process the last of the poured metal collects in the gating area which now serves as a feeder.
The advantage of the modular construction is also the fl exible addition of core pulls with programmable speeds to adapt the machine to a wide variety of demands. Kurtz machines can be completed to automatic casting cells by adding external units for melt handling and parts removal.
Gravity Casting Plants, Handling & More
Complete Casting Cells
|Kurtz provides tiltable gravity and gravity casting machines which are available as single machine or turn-key complete solutions / complete casting cells. The flexible machine concept is easily adaptable to different customer requirements: low cost or high tech versions, maximum flexibility for frequent product changes or individual customized solutions.|
Ejectors with hydraulic coupling
Side shifter straight / tilted
Coupling of the die cooling
Cooling systems: water-, air- or mixed cooling
Tiltable gravity casting machine, tilted by 90°, servo-hydraulic tilting motion, tilting angle of up to 110° possible
Apart from automated casting processes the focus is on core and part handling. Additional features and peripherals are realized subject to requirement. Servo-hydraulic, i. e. controlled, casting machines are used for tiltable gravity casting with robot. The free programming of both robot and casting machine is absolutely quick and easy; robot and casting machine must run synchronously to obtain high-quality castings.
The KURTZ casting machine division acts as one-stop supplier: The customer can expect complete solutions from one source - from casting and process development through the steps mould making, installation of the machine on site, mould start-up and training. In short: KURTZ takes responsibility as a general contractor.
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