在Hunger，密封技术的发展已经有数十年的时间。

HUNGER活塞密封GD1000K系列应用及作用

The Hunger slide ring piston seal type GD1000K is used to seal and guide pistons on double-acting hydraulic cylinders. The seal design and materials used make it particularly suitable for the most vigorous applications e.g. construction machine cylinders.

The seal can be used in standard form with mineral oils and water base fluids. Modified versions are available for use with other fluids.

The GD1000K consists of 6 parts, a special shaped elastic ring of a modified NBR, a slide ring of abrasion resistant PTFE-Bronze compound which acts as the sealing ring, two lateral support rings of modified PUR and two bearing rings of pressure-resistant POM PTFE-Bronze compound.

The elastic ring energises the slide ring to press it against the cylinder wall, providing a sealing function at zero working pressure. The onset of pressure compresses the elastic ring which increases the radial force pressing the slide ring against the cylinder wall, thereby increasing the sealing effect.

The two support rings prevent gap extrusion of the slide ring at high pressures. The special profile of the support rings encourages uniform fluid and pressure distribution to the elastic inner ring.

The bearing rings positioned on the support rings, make contact with the cylinder wall; there is no metallic contact between the piston and the cylinder tube.

When combined with a surface roughness of Ra 0.3 - 0.5 碌m of the cylinder, minimum friction is achieved. The seal has excellent efficiency. Even at low speeds there is no stick-slip effect allowing good positioning control.

HUNGER滑环活塞密封件GD1000K是用于密封和引导双作用液压缸上的活塞。所使用的密封设计和材料使其特别适用于最剧烈应用场合，例如，施工机械油缸。

GD1000K由6个部件组成，弹性环使滑环能够压靠在气缸壁上，在零工作压力下提供密封功能。压力的增加会压缩弹性环，这增加了将滑动环压向气缸壁的径向力，从而增加了密封效果。

两个支撑环防止滑环在高压下的间隙挤出。支撑环的特殊轮廓可以使弹性内圈产生均匀的流体和压力分布。定位在支撑环上的轴承环与气缸壁接触;活塞和缸筒之间没有金属接触。

当与圆筒的Ra0.3-0.5μm的表面粗糙度相结合时，实现了摩擦。即使在低速情况下，也不存在粘滑效应，从而实现良好的定位控制。

HUNGER密封圈常用型号：

HUNGER GD1000K40*26*32

HUNGER GD1000K40*26*30

HUNGER GD1000K45*31*32

HUNGER GD1000K45*31*30

HUNGER GD1000K50*34*39

HUNGER GD1000K50*34*32

HUNGER GD1000K55*39*34

HUNGER GD1000K55*39*32

HUNGER GD1000K 750/720*80

HUNGER GD1000K 220/195*71

HUNGER GD1000K 150/128*53

HUNGER GD1000K 200/175*64?

HUNGER GD1000K 350/320*80?

HUNGER GD1000K 280/255*85?

HUNGER GD1000K 220/195x71

HUNGER GD1000K 330*300*80

HUNGER GD1000K 180/158*57

HUNGER GD1000K 63/47*39

HUNGER GD1000K 70/54*39

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HUNGER密封圈GD1000K系列GD1000K 63/47×39介绍