
U Cup Piston Seals for Injection Mould Machine
Model: YxD
Temperature: -35/+120℃
Speed: ≤1m/s
Pressure: ≤40MPa
Product Introduction
We adhere to the priority of social benefits, regulate our own market operation behavior, and provide users with safe and quality spring energized metal seals, double delta seal, ptfe lip oil seals and services. After continuous development and growth, our company can adapt to the needs of different levels of customers, and won the trust and recognition of customers. We are adhering to the business philosophy of "Quality comes from focusing on innovation to achieve brilliant" and the quality policy of "Continuous innovation and excellence", taking "customer satisfaction" as our ultimate goal, and wholeheartedly providing customers with high-quality dehumidification and energy-saving products at competitive prices. Professional after-sales service, superb system technical service. We adhere to the development direction of specialization in each business field and vigorously promote innovation in management, technology, products and services. Our company is committed to creating a fair and just competitive environment for the selection and training of talents, and providing sufficient development space for them through the continuous development of the enterprise.
Description
U cup piston seals has a U-shaped/Y-shaped cross-section and it is typical lip seals that installed in a groove with a tight fit. Hydraulic cup seals is designed to provide a dry sealing solution in light and medium-duty applications. It is for easy installation and excellent low temperature performance.
The seal can be considered for use in heavy-duty applications when used with a suitable full depth back-up ring. The sealing lips are trimmed at an angle to give optimal sealing performance.
Hydraulic cup seals makes it ideally suited for single-acting rod or piston applications. Can also be fitted back-to-back for use in double-acting applications.
Material | NBR, FKM or PU |
Color | Black, Brown, Red, Blue or Ivory |
Speed | ≤1m/s |
Temperature | -35 to 120℃ |
Pressure | ≤40MPa |
Medium | Mineral oil based hydraulic fluids, barely flammable hydraulic fluids, water, air and others |
Application | Mobile hydraulics, Standard cylinders, Machine tools, Injection moulding machines, Presses etc. |
Standard or can fit the groove | Comply with standard of JB/ZQ 4264, GY2, Trelleborg-PUA, Parker-B7, DZ company's D-1 series |
Pressure | 160bar | 250bar | 400bar |
Max Gap E | E≤0.6mm | E≤0.5mm | E≤0.4mm |

Installation Dimension table based on Metric Size (mm)
D H9 | d h9 | H | L1 +0.2 | L2 +0.2 | R1≤ | C≥ |
20~28 | D-6 | 8 | 8.5 | 11.5 | 0.2 | 3 |
30~55 | D-8 | 10 | 11 | 12.5 | 0.2 | 3 |
55~160 | D-12 | 14 | 15 | 17 | 0.4 | 3.5 |
105~300 | D-16 | 18 | 19 | 21.5 | 0.8 | 5 |
320~650 | D-24 | 24 | 26 | 29 | 0.8 | 6.5 |
Feature
● Reliable sealing performance
● Small frictional resistance
● Good pressure and distortion resistance
● Small compression set
● High reciprocating speed
● Simple structure and easy to install
● Adapt to the most demanding working environment


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.


Our company uses the open economic environment to carry out more international exchanges and cooperation, introduces advanced technology, and promotes its U Cup Piston Seals for Injection Mould Machine to the international market. We not only have a keen awareness of development and change, but also continuous technological innovation. From raw materials to production to production, we are always committed to tracking control to ensure that each batch of products is strictly inspected.
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