Doking ODU Hydraulic Oil Seal Piston Rod Seals PU Polyurethane Material

Product Description

Doking ODU hydraulic oil seal piston rod seals PU polyurethane material
Description-Hydraulic Oil Seal:

Hydraulic seals are generally made from elastomers, natural and synthetic polymers, which possess weak molecular attraction and highly elastic properties. Two major sources for hydraulic seals are rubber and plastics (including PTFE and polyurethane). Other elastomer materials used to fabricate seals include butadiene, nitrile, butyl, and silicone. Seals made with these and other elastomeric materials are usually fabricated through extrusion, although hydraulic seals are sintered in an oven from a powder form.

Seals may also be made from non-elastic materials such as felt and leather. Some particular types of hydraulic seals (e.g. bonded seals) are made from metallic materials (including brass, bronze, aluminum, carbon steel, and stainless steel). All of the metal materials used to create seals may be plated or galvanized for added oxidation protection and strength. The adhesion between the rubber material and metal of a bonded seal is created via chemical bonding.

Major Types and Operations:
Hydraulic seals are most often found in hydraulic cylinders, the mechanical actuators that convert hydraulic pressure (from oil, water, or another pressurized fluid) into unidirectional force for agriculture and forestry vehicles, construction equipment, and similar mechanisms.
Usually, hydraulic seals are located on the cylinder head, on the rod shaft, or in the piston. In these positions, seals keep fluid from leaking past the interface between the rod and head, from leaking to the outside of the cylinder, and from flowing across the piston.

Hydraulic seals are divided into two main groupings: static and dynamic.

Major Types	Operations
Static seals	Static seals are typically located in grooves and other confined spaces, where they act as gaskets. In this context, the term gasket refers to a mechanical seal that fills the space between two or more mating surfaces that do not have any motion between them and is held in place by pressure applied by the tightening of bolts. Although static seals vary by number and exact location depending on the specific cylinder structure, all of them serve the purpose of closing gaps between immobile surfaces. Static seals can be further broken down into groups of axial static seals and radial static seals. To achieve a secure seal, axial static seals must be squeezed between their upper and lower surfaces. Radial static seals, on the other hand, accomplish the same thing when they are compressed between their inner and outer surfaces.
Dynamic seals	Dynamic seals are also known as shaft seals, seal gaps between two surfaces that do share relative motion. Types of motion they work in between include reciprocation, oscillation, and rotation.
Reciprocating dynamic seals	Reciprocating dynamic seals are seated within glands that hold relative motion. Here they move along an axis in between inner and outer surfaces. Most often, they're used to power linear actuators, hydraulic cylinders, and pistons in internal combustion engines.
Oscillating seals	Oscillating seals operate with shafts that rotate using a limited number of turns around its axis. Because of the frequency with which these shafts rotate, oscillating seals are usually made of a relatively hard material and have self-lubricating capabilities.
Rotary seals	Rotary seals are placed where a hydraulic device experiences rotational motion from a housing and a shaft.

 

1.The KDAS composite seal is A double-acting piston seal , consisting of  three parts :A elastomer A,two supportinng rings B.
two guide rings C
 

2.The material

A elastomer -butyl rubber

B support ring -nylon or polyurethane

C guide ring -nylon or polyformaldehyde

 

Other material of oil seal: Silicone, NBR, Metal & Stainless Steel, PTFE, etc.
Production equipment: includes vacuum vulcanizing machines, large-scale flat vacuum vulcanizing machines,
rubber machines, CNC machine tools, temperature-controlled ovens, and detectors.
Application High-pressure hydraulic seal auto rubber oil seal:
1. Fluid system (static & dynamic)
2. Hydraulic system (dynamic)
3. Pneumatic system (dynamic)
4. Oil or grease media sealing
5. Water media sealing
6. automobile, motorcycle, industry, agricultural machinery, truck, buses, trailers,
exercise equipment.
Standard sizes of Galvanized Copper Washers metal gaskets Dowty seals Bonded Seals

Our sealing products factory is located in Xingtai City, Hebei Province. We specialized in oil seal for more than 20 years, our company is a comprehensive sealing enterprise integrating sealing design, R & D, production, agency, storage and sales. Excellent sealing design and development capability, advanced processing equipment and technology, high-quality imported raw materials (hydraulic reciprocating seal) and skeleton rotary seal; Products are widely used in: hydraulic and pneumatic construction machinery. Petrochemical Machinery and electronics. Electricity. Shipbuilding. papermaking. Coal mine pump valve and other fields

Our main products are: O-ring, X-ring, Y-ring, D-rings, rubber flat washer, ED rings, rubber strips, rubber ball, all kinds of skeleton oil seal and stepseal, polyurethane oilseal, pneumatic seals and Mechanical Seal all kinds of rubber parts for the design according to customer request.  

Main products:


Company Profile:

We specialized in the development and production of sealing systems   which were used in the Metallurgical,Electrical,Auto, Engineering machinery, Light industrial machinery and Electrical appliance manufacturing industries. Doking focus on customers' needs,as a dependable partner and reliable supplier to help you resolve supply or technical problems ,and improve the performance of your equipments or your business. When you are facing emergency repairs situation or urgent orders,the highly responsive team of Doking seals will offer you very short lead time. 

Our company specialized in tc, tb, ta oil seal, hydraulic oil seal, crankshaft oil seal, valve stem oil seal, high pressure oil seal, oring, gaskets and other rubber parts which can meet your multifarious demands. We own various equipment, like modeling, metal surface processing, anti-errors in burdening, refining rubber, PTFE sintering, PU presynthetics, vulcanization, edge trimming, experiment testing, material storage in constant temperature, etc. The equipment for design, development, production is advanced and complete. We can also produce according to your samples and the quality can be absolutely guaranteed.Doking has a global sales network and we have more than 20 years experience ,and our seals have been sold to more than 60 countries or areas ,Such as America, England, Canada, Australia, Russian Federation ect . We adhere to the management principles of quote& Quality first, customer first and credit-based" Since the establishment of the company and always do our best to satisfy potential needs of our customers. It is striving for meeting the customers′ request and surpassing their expectation by depending on all staff participate, conducting Zero Defect manage-ment, controlling process strictly, improving processes continuously, quality products and service.

Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force.

FAQ

1. who are we? Are you trading company or manufacturer ?
We are manufacturer.We are based in Xingtai, China, sell to Domestic Market,North America,South America,Western Europe,Eastern Europe,Souther Europe,Southeast Asia,Mid East,Northern Europe,Oceania,South Asia,Africa,Eastern Asia,Central America. There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;

3.what can you buy from us?
PTFE Seals/Oil Seals/O Rings/Rubber Seals/Plastic Seals/Mechanical Seal/O-RING/ RING Seals.

4. why should you buy from us not from other suppliers?

Doking is a professional manufacturer of seals .Our company specializes in the production of PU, PTFE, rubber and metal sealing components

5. How long is your delivery time?

Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

6.Do you provide samples ?

is it free or extra ? Yes, we could offer the sample for free charge but you need to pay the cost of freight.

 

7. what services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,Express Delivery;

Accepted Payment Currency:USD,EUR,JPY,CAD,HKD,CNY;

Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,PayPal,Western Union,Escrow; Language
Spoken:English,Chinese,Japanese

For more information, please contact us. We look forward to your arrival