A hydrostatic transmission (HST) exists any time a hydraulic pump is connected to and dedicated to one or more hydraulic motors.

In this type of transmission, the rotational motion of the engine operates a hydrostatic pump on the driving side. The pump converts rotational motion into fluid flow. Then, with a hydrostatic motor located on the driven side, the fluid flow is converted back into rotational motion.

And the transmission seal kit prevents fluid from slipping past the input shaft.

The transmission seal that is most commonly replaced to prevent leakage is the tail shaft seal. This seals the driveshaft where it attaches to the output shaft of the transmission. It is attached at this point with the use of splines. As the vehicle moves, the driveshaft moves in and out as bumps are encountered.

The excavator seal kits have a variety of applications including -

Boom Cylinder Seal Kit

Arm Cylinder Seal Kit

Bucket Cylinder Seal Kit

Center Joint Seal Kit

Swing Motor Seal Kit

Travel Motor Seal Kit

Hydraulic Pump Seal Kit

Pilot Pump Seal Kit

Regulator Valve Seal Kit

Main Control Valve Seal Kit

Pilot Valve Seal Kit

Track Adjuster Seal Kit

Hammer Seal Kit / Hydraulic Breaker Seal Kit

Pilot Pump Seal Kit

Steering Cylinder Seal Kit

Lift Cylinder Seal Kit

Dump Cylinder Seal Kit / Tilt Cylinder Seal Kit

The excavator seals have a variety of applications including -

* Dust/ Wiper Seal

* Piston Seal

* Rod Seal

* Buffer Seal

* Back Up Ring/Gasket

* Travel Motor Seal

* O-ring

* Wearing Ring

* Skeleton Oil Seal

* Sliding Ring

* Center Joint Seal

* Adjuster Seal

* Couping /Connector

* Pusher

* Bushing

* Float Seal

* Steering Seal

* D-ring

* Steel Ring

Guangzhou Sonka Engineering Machinery Co., Ltd.

Loion: Guangzhou, China

Business scope:excavator spare parts

Fit for machine model brand: Komatsu, Hitachi, Kobelco, Kato, , Daewoo, Sumitomo, Hyundai, Volvo

Start

Sonka Company grew out of Global Engineering Machinery.

Time back in 2009, a spare parts shop named GLOBAL ENGINEERING MACHINERY established in Guangzhou City. Soon but stably, it sold its spare parts to more than 30 cities in domestic China in the same year, with the fame spreading far and wide, for the good product quality and service.

At that time the shop mainly sold mainly in seal and seal kits lines: excavator seal kits, loader seal kits, bulldozer seal kits, breaker seal kits and other construction machinery-related seals.

Growing

To meet customer’s growing needs on seal kits, in 2013, a new company named Guangzhou Huanqiu Seal Technology Co. LTD was set up to handling the seal factory. Factory manufactures all kinds of seals for construction machinery.

It then lay solid foundations for oncoming development.

HQPA stands for High Quality Product Assurance!

Expand

With rich experience and established technique, customers are satisfied with our seal kits for high quality and good performance.

And we would like to share these seal kits with the world outside China. In the year of 2014, we creates the Guangzhou Sonka Engineering Machinery Co. Ltd, a branch trading company, to deal with all the oversea business.

Prospect

In the year 2020, Sonka Company will upgrade our brand. We will set up Management Service Center in the oversea market to promote our uniform brand all over the world.