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Complete Piston for Hydraulics KKH

Complete Piston for Hydraulics KKH

Complete Piston for Hydraulics KKH

Product catalog summary
Overview: The document provides detailed information about the Hunger complete piston KKH for hydraulic cylinders, which includes a piston and a seal with appropriate bearing elements. It highlights the design, application, and specifications of the piston.
Specifications: The piston features a smooth internal bore that can be used as an O-ring sealing surface. It can be connected to the rod in various ways, such as using a nut or threading the bore. Care must be taken during welding to avoid damage to seals and bearings. Static tightness between the piston and rod is essential.
Design and Application: The document mentions that since 1998, the piston width for the standard seal type GD1000K has changed. Users must specify the existing piston width when ordering spare parts. The piston is suitable for hydraulic applications and can be used with hydraulic oil, water-oil, and water-glycol fluids.
Materials and Surface Finish: The surface quality for sliding surfaces is specified with Ra values between 0.3-0.5 µm and Rt values ≤ 1.5 µm. Static sealing surfaces have Ra values ≤ 0.8 µm and Rt values ≤ 3.6 µm.
Pressure and Temperature Range: The standard pressure is 360 bar, with a maximum of 630 bar for chambered installations. The temperature range is from -45°C to +120°C, with a sliding speed of up to 1 m/s.
Dimensions and Ordering: The document provides a table with various piston diameters ranging from 40 mm to 320 mm, along with corresponding reference numbers for ordering. Further dimensions are available upon request.
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Catalog excerpts

Complete Piston for Hydraulics KKH-1

Komplett-Kolben für Hydraulik Complete Piston for Hydraulics KKH Komplett-Kolben für Hydraulik Complete Piston for Hydraulics Der Hunger Komplett-Kolben KKH für Hydraulikzylinder besteht aus einem Kolben und einer Dichtung mit den dazugehörenden Führungselementen. The Hunger complete piston KKH for hydraulic cylinders consists of a piston and a seal with the appropriate bearing elements. Die Kolben sind mit einer glatten Innenbohrung versehen, die als O-Ring-Dichtfläche verwendbar ist. The pistons are provided with a smooth internal bore which can be used as O-ring sealing surface. Der Kolben kann auf verschiedenste Weise mit der Stange verbunden werden. Die glatte Bohrung zentriert den Kolben auf der Stange, wenn dieser mit einer Mutter oder ähnlichem befestigt werden soll. Es ist auch möglich, in die Bohrung ein Gewinde zu schneiden, wobei eine Vorpassung vorhanden sein muß. Beim Anschweißen des Kolbens an die Stange ist darauf zu achten, daß die Dichtungen und Führungen nicht beschädigt werden. Außerdem muß die statische Dichtheit zwischen Kolben und Stange gewährleistet sein. The piston can be connected to the rod in a variety of ways. The smooth bore centres the piston on the rod where it has to be secured with a nut or similar. It is also possible to cut a thread into the bore, however, centering of the piston must also be provided. When welding the piston to the rod, care must be taken to ensure that the seals and bearing elements are not damaged. Furthermore, the static tightness between piston and rod must be guaranteed. Informationen über die Dichtung des Komplett-Kolbens für Hydraulik finden Sie im Kapitel „GD1000K“. Further information on the seal fitted to the complete piston for hydraulics is available in the GD1000K section. 341

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Complete Piston for Hydraulics KKH-2

Komplett-Kolben für Hydraulik Complete Piston for Hydraulics KKH Werkstoffe Materials Komplett-Kolben Complete Piston Standard St 52 oder gleichwertig Standard St 52 or equivalent Alternativ (auf Anfrage) Alternative (on request) Einsatzbereich Application Range Druck [bar] Standard Temperaturbereich [°C] Gleitgeschw.keit [m/s] Medium 360 [630*] -45 ... +120 1 StandardHydrauliköl Öl-Wasser, Wasser-Glykol pressure [bar] Temperature range [°C] Sliding sp e e d [m/s] Fluid 360 [630*] -45 ... +120 1 standard hydraulic oil, oil water, water-glycol Standard * Die Klammerwerte sind die max. Druckwerte...

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