
Popular in European Market Glass Manipulator for Glass Business Production Line Vacuum Lifter
Model: DUN
Temperature: -20/+100℃
Speed: ≤0.5m/s
Pressure: ≤40MPa
Product Introduction
With the development of economic globalization and market diversification, the upgrading of products has been given a new meaning. The development of our new glyd ring rod, dust seal design, u cup rod seals needs shorter cycle and less investment. Our company has been adhering to the enterprise spirit of "professionalism, integrity, collaboration and innovation", never forgetting the original intention and forging ahead. We have our own testing center, which plays a role as a link and bridge for collaborative innovation in production, education and research. We combine advanced information technology and management methods from abroad with the specific realities of domestic companies.
Description
U cup UN is used in a wide range of hydraulic cylinders. These seals have a symmetrical configuration of the sealing lips and are mainly used in single acting or double acting standard hydraulic cylinders, particularly for mobile hydraulics under rough operating conditions.
UN hydraulic seals is a lip seal that can be used for piston and rod seals because of the equal height of the two seal lips. The piston rod seal is the most critical seal on any type of fluid power plant, preventing fluid from leaking out of the cylinder to the outside.
Leakage through the rod seal can degrade equipment performance and, in extreme cases, environmental problems. Combined for engineering, the range of automatic hydraulic equipment for the sealing of pistons and piston rods in reciprocating hydraulic cylinders. It is used in a wide range of hydraulic cylinders. UN is a lip seal that can be used for piston and rod seals because of the equal height of the two seal lips.
Material | NBR, FKM or PU |
Color | Black, Brown, Red, Blue or Ivory |
Speed | ≤0.5m/s |
Temperature | -20 to 100℃ |
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 Trelleborg-RUB,DZ-UN, RSS, MUP. |
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 | D | L1 | L2 | H | R1≤ | C≥ |
20~50 | d+8 | 5 | 7 | 4 | 0.4 | 3 |
20~150 | d+6 | 6 | 8 | 5 | 0.2 | 3 |
20~50 | d+8 | 6 | 8 | 5 | 0.4 | 3 |
20~150 | d+10 | 6 | 8 | 5 | 0.8 | 3.5 |
20~50 | d+8 | 7 | 9 | 6 | 0.4 | 3 |
20~150 | d+10 | 7 | 9 | 6 | 0.8 | 3.5 |
20~50 | d+10 | 8 | 10 | 7 | 0.8 | 3.5 |
20~100 | d+8 | 9 | 11 | 8 | 0.4 | 3 |
20~100 | d+10 | 9 | 11 | 8 | 0.8 | 3.5 |
20~100 | d+12 | 9 | 11 | 8 | 0.8 | 3.5 |
20~100 | d+13 | 9 | 11 | 8 | 0.8 | 3.5 |
20~150 | d+15 | 9 | 11 | 8 | 1.2 | 5 |
20~200 | d+12 | 10 | 12 | 9 | 0.8 | 3.5 |
20~200 | d+15 | 10 | 12 | 9 | 1.2 | 5 |
20~200 | d+10 | 11 | 13 | 10 | 0.8 | 3.5 |
20~200 | d+15 | 11 | 13 | 10 | 1.2 | 5 |
d | D | L1 | L2 | H | R1≤ | C≥ |
20~200 | d+20 | 11 | 13 | 10 | 1.2 | 5 |
20~200 | d+10 | 13 | 15 | 12 | 0.8 | 3.5 |
20~250 | d+15 | 13 | 15 | 12 | 1.2 | 5 |
20~250 | d+20 | 13 | 15 | 12 | 1.2 | 5 |
20~250 | d+25 | 13 | 15 | 12 | 1.6 | 7 |
100~250 | d+15 | 17 | 20 | 15 | 1.2 | 5 |
50~350 | d+20 | 17 | 20 | 15 | 1.2 | 5 |
20~250 | d+25 | 17 | 20 | 15 | 1.6 | 7 |
20~250 | d+30 | 17 | 20 | 15 | 2.4 | 8 |
100~300 | d+20 | 18 | 21 | 16 | 1.2 | 5 |
50~300 | d+25 | 18 | 21 | 16 | 1.6 | 7 |
50~300 | d+20 | 20 | 23 | 18 | 1.2 | 5 |
50~300 | d+25 | 20 | 23 | 18 | 1.6 | 7 |
100~300 | d+30 | 20 | 23 | 18 | 2.4 | 8 |
150~400 | d+30 | 24 | 27 | 22 | 2.4 | 8 |
Feature
● High sealing performance under low pressure
● Not suitable for separate sealing
● Easy to install
● Wear-resistance, extended services life
● Resistance against extrusion


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.


We are a leading manufacturer of producing Popular in European Market Glass Manipulator for Glass Business Production Line Vacuum Lifter and providing related solutions. With integrated business of design, R&D, production, sales and service, we are committed to bringing the best benefits for customers. In order to ensure quality and meet our customers' requirements, we have obtained a series of quality management system and product certification certificates. The company has always paid attention to the cultivation of talents, providing a comfortable and safe working environment and a competitive development channel for employees.
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