Hallite H80 Excavator Center Joint Seal Kit ROI Seal Ring

Product Description

Hallite H80 Excavator Center Joint Seal Kit ROI Seal Ring

Hydraulic seal

Commonly used self-sealing compression type hydraulic seals are mainly O-ring seals, round seal rings and square seal rings, etc. They have the advantages of simple structure, easy manufacture, low cost, etc., so they are widely used in hydraulic transmission systems.

Dynamic sealing element and static sealing element. They are typically 10 to 25% radially compressively deformed in the seal groove and create a high initial contact stress on the seal surface to prevent leakage of pressure free liquid.

When the hydraulic cylinder is working, the pressure liquid squeezes the self-sealing compression type hydraulic seal to further deform it, and generates a large pressure with the pressure liquid on the sealing surface, which is strictly speaking pressure. Increased and increased additional contact stress, together with the initial contact stress, prevents leakage of pressurized liquid. However, when the working pressure is greater than 10Mpa, in order to prevent a part of the synthetic rubber self-sealing type compression type hydraulic seal from being squeezed into the sealing gap and being cut off in the reciprocating motion of the hydraulic cylinder, leakage is required, and the self-sealing pressure of the synthetic rubber is required. A compression resin retaining ring is provided on the pressure side of the tight hydraulic seal, such as a nylon retaining ring, a polyoxymethylene retaining ring and a filled PTFE retaining ring. Since the synthetic rubber self-sealing compression type hydraulic seal has a large compression deformation when working, its static friction resistance is particularly large, and it is usually more than twice the dynamic

friction resistance. Such a large static friction resistance in some low-pressure hydraulic transmission systems is bound to cause low-pressure creep and difficult operation, which is why the self-sealing compression type hydraulic seal is rarely used as a dynamic seal.

Pls Contact us for further details and the reply will be sent asap.

Product Show

Guangzhou De Yulong Construction Co., Ltd. is one of the well-distinguished firm in the market. DYL is located in the Guangzhou City where has the most largest wholesale market of excavator spare parts,excavator hydraulic oil seals and hydraulic cylinder seal kits in China.
We are the leading trader,wholesaler, distributer,importer and exporter of excavator oil seals & seal kits in the market, specialized in the business about 20 years with rich experience and excellent aftersale service.Offered products are known of high quality,reliable and high cost-effective nature.
The catalogue inculde excavator repair hydraulic cylinder oil seal kit,control valve oil seal kit, main pump oil seal kit, swing motor oil seal kit, travelling motor oil seal kit,chain adjuster oil seal kit,gear pump oil seal kit,center joint oil seal kit,remote control valve joy stick pilot oil seal kit,o-ring, o-ring replacemnet assortment box, shaft oil seals, couplings, floating seal group, hydraulic cylinder rod seals, dust wiper seal,buffer ring,back up ring,and the piston seals such as SPGO, SPGW SPGA OK seals and the wear ring, slide ring,DU bushing,joystick pilot valve.Our products are produced by the world class brand such as NOK,KYB,Hallite,CFW,WYS,PET,YCC,DUCI,YBS,SKF,PARKER,SAKAGAMI,USG,Busak+Shanban of Japan,England,S.Korea,Taiwan, Singapore and USA.
Our products are in rich stock and wide range sizes used in the excavator repair of shaft seal, pumps, valves, cylinders, motors, machines and other applications.We also can customized as the requirement of each customer.These high quality seals with different sizes and material are suitbale for , Komatsu,Sany, Hitachi, Hyundai, Doosan, Deawoo, Samsung,KATO, Sumtomo,Volvo and Kobelco excavators,breakers and bulldozer.
Welcome to contact us for further information.