
J/Ja Scraper Ring 370*400*10/20 Hydraulic Packing Dust Wiper Seal Ring
Model: HBY
Temperature: -55/+120℃
Speed: ≤1m/s
Pressure: ≤50MPa
Product Introduction
In the pursuit of quality, our company's products have won unanimous praise from customers at home and abroad, and is in a leading position in the industry of hydraulic cylinder kzt seals, glyd ring t catalog, hydraulic u cup seals. Our corporate style is, standardized and orderly, smooth and effective, coordinated and measured, and powerful in execution. We also meet new opportunities and challenges with the spirit of continuous progress. Relying on science and technology for development, and constantly provide users with high quality products, is our constant pursuit. The company has a sound organization, strict management system, leading core technology, superb production technology, reliable product quality and sincere service. Our company must be your first choice.
Description
HBY hydraulic buffer seal, mounted on the pressure side of the piston rod seal, is designed to improve the durability of the piston rod seal by venting the pressure back to the system side. The main parts of the buffer seal are the static lip, dynamic lip, radial slots, and radial channels. The static lip of the seal is optimized with high flexibility to relieve the interstage pressure. The dynamic lip can minimize the friction and back pressure under high-pressure condition. The radial slots of the buffer seal are designed to reduce the risk of blow-by. The radial channels, a vital element in the whole seal structure, facilitate back-pumping and relieve the pressure.
Seal Ring Material | NBR or PU |
Seal Ring Color | Ivory, Red, Blue |
Back Up Ring Material | POM |
Color | Black or White |
Speed | ≤1m/s |
Temperature | -55 to 120℃ |
Pressure | ≤50MPa |
Medium | Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others |
Application | Excavators, Standard cylinders, Mobile hydraulics, Presses etc. |
Standard or can fit the groove | Comply with standard of NOK-HBY series |
Pressure | 35 Mpa | 42 Mpa | 50 Mpa |
Max Gap E | E≤0.8mm | E≤0.4mm | E≤0.25mm |

Installation Dimension table based on Metric Size (mm)
d f8 | D H9 | L +0.2 | H |
40~190 | d+16 | 6.3 | 6 |
200~220 | d+21 | 8 | 7.7 |
Feature
● A long service life to minimize maintenance and downtime
● No adhesion to the sliding surface
● Excellent abrasion and wear resistance
● Leak-free performance
● Resistant against high temperature and pressure
● Effective in relieving any pressure built up in the hydraulic system


The company has 5,000 square meters of professional production plants, 2000 square meters of constant temperature and humidity production workshop, dozens (sets) of advanced production equipment.
Own a professional and technical production team and sales service team.
The selection of raw materials are international first-line brand suppliers, In order to ensure product quality, we promise that don't add waste (recycled materials) in the material.


In China, you can find us active in the field of J/Ja Scraper Ring 370*400*10/20 Hydraulic Packing Dust Wiper Seal Ring. We will continue to develop our businesses to address global social issues, and to become a company that is in demand and expected by the world. We focus on the human resource management goal of structural optimization and adhere to the hiring standards of both virtue and talent, with virtue as the first priority.
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