Pantograph routers, also known generically as pantographs, are machines used in aluminium and PVC joinery to perform various routing operations using a finger router bit (drill-type router bit); these finger router bits must have a single flute, or in other words, a single groove or channel, to allow for rapid chip removal.
The main function of these machines is to mill according to a template (a metal plate with various standard shapes) over which a reading head moves. If the finger cutter supported by the pantograph can have different diameters, then the pantograph must also be fitted with corresponding reading heads, as the milling is carried out on a 1:1 scale
Unlike aluminium joinery, where single-motor pantographs are generally used—and thus with a single cutter—in PVC joinery, pantographs may also be fitted with an additional motor that drills three holes simultaneously in the horizontal plane, for the espagnolette holes; this motor must have a low speed as the cutters will also need to cut through the reinforcement inside the profile. These pantographs are known as dual-operation pantographs.
In recent years, to save space and for financial reasons, some manufacturers have added another function to the pantograph to perform an additional operation, which is usually carried out on the machine for drainage/drip holes and ventilation holes. This has led to the development of 3-operation pantographs (3 motors), the last of which is positioned at an angle and is adjustable between 45° and 60°. In this case, the workshop no longer needs a separate machine to drill drainage/water outlet holes, as these can be carried out on the pantograph. However, this “solution” is recommended only in situations where the budget is limited; ideally, a machine for making drainage holes should be available in every workshop.
A key consideration with aluminium pantographs is the need for an additional cooling and lubrication circuit for the cutter during machining. Furthermore, other factors must be taken into account when selecting a pantograph: - motor power: a minimum of 0.55 kW is preferable. However, a pantograph with a 1.1 kW motor performs much better. - some manufacturers fit two reading heads and, consequently, two templates. This allows for increased productivity. - Furthermore, some manufacturers produce pantographs with a rotating base, thus eliminating the need to manually turn the profile, another aspect that can lead to increased productivity.
Tag: pantographs, pantograph cutters, pantographs with triple cremon device, 2-operation pantograph cutters, pantographs with drainage hole device, pantographs for aluminium, single-motor pantograph cutters
ISO 601 - Utilaj manual de frezat gauri pentru maner si locasul mec. Inchidere + pantograf + canale drenaj apa
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