Metal-rubber washers, copper washers -washers for nipples in power hydraulics

We offer inch and metric metal-rubber washers. With self-centering, they are used to seal metric and inch threads where the fitting is screwed into the device body. They have a square cross-section which provides a much better seal than in the case of round seals (o-rings). Metal-rubber washers have replaced copper washers - these are only used in places exposed to very high temperatures ) On request, we create sets of metal-rubber washers. Dimensions are listed with each item. Execution : free-cutting steel + NBR or stainless steel. 

Types of metal-rubber washers  

• washers for metric threads (PPM)
• washers for inch threads (PPG)

 We also offer copper washers bulk or in sets. Offered items are made of high-quality materials, ensuring exceptional strength and tightness, which is key in industrial, agricultural, and construction applications. At attractive prices, we offer metal-rubber washers, copper washers, aluminum, fiber. Each of the offered types is available in a wide range of sizes, which allows the product to be matched to the specific needs of customers. We sell them in single pieces and sets in solid cases and handy boxes. We update the catalog with new proposals on an ongoing basis. Therefore, we invite you to regularly visit our store and place convenient orders online!

Sealing ring role in sealing

The sealing ring used in power hydraulics plays a key role in ensuring the tightness of threaded connections, especially in places exposed to high pressure and variable dynamic loads. In the category of metal-rubber washers, solutions are available where a steel carrier ring works with a flexible sealing insert, most often made of NBR. Such a design allows for the compensation of small surface irregularities and effective sealing of the connection without the need for additional sealing pastes or tapes. A properly selected sealing ring ensures connection durability, resistance to vibrations, and a long service life in hydraulic and pneumatic systems.

Metal-rubber washers – sealing accessories

Items made of high-quality materials combine the durability of metal with the flexibility of rubber, ensuring exceptional strength and tightness of threaded connections. Simple construction and ease of use make o-rings a universal element used both in industrial sectors, construction, as well as agri-food industries. Offered metal-rubber washers are available in metric (PPM) and inch (PPG) versions. This allows for wide application in various hydraulic systems and pneumatic installations. Thanks to this, every customer will find the right product, tailored to specific requirements and technical standards. The catalog also includes models with an additional galvanized coating for use together with stainless fittings in aggressive environments. These types of reinforced metal-rubber washers are characterized by above-average durability, increased resistance to corrosion, high temperature, and the effects of various chemicals.

Hydron power hydraulics – wide range of washers at attractive prices

In our offer you will find a wide range of parts and accessories for hydraulic systems and pneumatic installations. At affordable prices, we sell metal-rubber, copper, aluminum washers and fiber in inch and metric versions. The items are carefully selected and come from well-known manufacturers. Our specialized staff provides professional advice, helping to select the ideal solutions for individual needs. We offer attractive discounts for regular customers. Additionally, we guarantee very fast shipping, thanks to which the ordered products quickly reach the recipients. We invite you to place online orders or visit our stationary store. Hydron power hydraulics is a reliable business partner.

Metal-rubber or copper washers ?

Sealing washers are an indispensable element in hydraulic and pneumatic systems, where precision and tightness are key. Various types of washers are available on the market, and the most commonly used include metal-rubber washers and copper washers. Which of them are better for your application ? Below we analyze their properties, applications, and advantages, and we will try to answer the question of which one to choose 

Metal-rubber washers

Metal-rubber washers, also known as met-gum washers, consist of a metal ring covered with a rubber sealing layer. They are commonly used in hydraulic and pneumatic systems, especially in places where high tightness and pressure resistance are required. Advantages of metal-rubber washers : High tightness: Thanks to the combination of metal and rubber, these washers seal perfectly even in difficult conditions. Pressure resistance: Ideally suited for high-pressure systems where copper washers may be less effective. Vibration damping: The rubber layer helps in reducing vibration and noise, which is particularly important in industrial installations. Resistance to aging: Thanks to the materials used, the washers are resistant to aging and the effects of hydraulic oils. Stainless steel versions are resistant to all types of chemicals. Product examples: In the store's offer you will find a wide selection of metal-rubber washers, available in various types ( metric, inch ) and various sizes. Application of met-gum washers : High-pressure hydraulic systems, pneumatic installations, places exposed to vibrations and micro-shifts.

Copper washers

Copper washers are a traditional solution used in systems requiring good thermal conductivity and resistance to extreme temperatures. They are made of solid copper, which ensures them excellent durability and universality. Advantages of copper washers : Resistance to high temperatures: Copper washers are irreplaceable in systems where extreme temperature changes occur. Thermal conductivity: Thanks to copper, the washers effectively conduct heat, which is important in industrial applications. Mechanical strength: Solid construction makes copper washers very durable and resistant to damage. Reusable: Copper washers can be reused after proper annealing. Application of copper washers : High-temperature systems, e.g., in the automotive industry, places exposed to high mechanical loads, threaded connections in hydraulic systems with lower pressure

Metal-rubber vs copper washers – which to choose ?

When to choose metal-rubber washers?

• If the system works under high pressure and high tightness is required.
• In applications where vibration damping is key.
• In hydraulic and pneumatic systems where oils or other lubricating substances are present.

When to choose copper washers ?

• When the system is exposed to extreme temperatures.
• In places where thermal conductivity is important.
• For connections requiring durability and multiple uses.

Hydron offer – choose the best solution

In our store you will find both metal-rubber and copper washers, which will allow you to match the solution perfectly to your needs. Thanks to a wide offer and expert support, you can be sure that your hydraulic systems will work reliably. Check the full offer of sealing washers and ensure tightness at the highest level! All washers offered by us have a QUALITY CERTIFICATE ! 

Sealing washers for bolts

Sealing washers for bolts are commonly used in power hydraulics to create tight and durable threaded connections, especially where eye-end fittings and overflow bolts are used. This type of solution is found in mobile hydraulics installations, construction and agricultural machinery systems, and industrial systems where resistance to pressure, vibrations, and variable operating conditions is important.

Sealing connections of eye-end fittings

Eye-end fittings, also called hydraulic eyes or banjo type connections, require axial sealing between the eye and the socket. In such connections, banjo bolts with transverse holes are used, through which the working medium flows. To ensure full tightness, sealing washers for bolts are mounted on both sides of the eye-end fitting. Their task is to tightly separate metal surfaces and prevent leaks of hydraulic oil at the contact point of the elements.

The role of washers in connection with a banjo bolt

Sealing washers for bolts in overflow connections work under direct axial pressure. During the tightening of the banjo bolt, the eye is pressed against the body, and the washers undergo controlled compression. Thanks to this, they precisely fill surface irregularities, creating an effective barrier for the working medium. Such a solution does not require the use of additional seals and allows for repeatable connection tightness.

Check also :

- impact of metal-rubber washers on the operation of hydraulic systems