Best Hydraulic Fittings Supplier

15 Years Manufacturing Experience

Hydraulic Caps and Plugs

Our Hydraulic Caps and Plugs are manufactured to meet the highest industry standards, including DIN 908, DIN 910, DIN 906, ISO 1179, ISO 9974, and ISO 6149. Our caps and plugs are engineered to provide superior protection for your hydraulic system, ensuring optimal performance and longevity.

We use only the highest-quality materials and manufacturing processes to produce our caps and plugs, including cold-drawn blanks and hot-forged blanks, as well as automated lathes, automated seal assembly lines, automated CCD inspection production lines, and automated packaging machines. Our caps and plugs are of the highest quality, with precise and consistent dimensions and tight seals that prevent leaks and contamination.

Our hydraulic caps and plugs come in a range of sizes and forms and are made to work with a variety of hydraulic applications and systems. Therefore, we offer the best option for you, whether you need a cap or plug for high pressure or low pressure.

Below are the list of products under Hydraulic Caps and Plugs:

Hydraulic Sealing Plugs Type E

The Hydraulic Sealing Plugs Type E (ED-sealed plug) and VSTI Plug are highly sought-after products produced by Sannke. The manufacturing process involves multiple steps, starting from the multi-station cold forging of raw materials to automated lathe machining, followed by assembly with ED-sealed elastic gaskets and comprehensive inspection and testing of all components. The advanced automated production methods used by the Sannke factory ensure consistency and precision in the manufacturing process, resulting in high-quality hydraulic sealing plugs that meet the needs of various industries.
Furthermore, Sannke aims to increase its production capacity and efficiency in the coming years, and the annual production of single plugs is expected to reach 50 million pieces by 2025. This projection highlights the company's commitment to meeting the increasing demand for hydraulic sealing plugs and improving the overall productivity of its operations. With its advanced production capabilities and commitment to quality, Sannke's Hydraulic Sealing Plugs Type E, ED-sealed Plugs, and VSTI Plug have become a top choice for many industries.

ORFS Caps and Plugs

The 4F series (also known as MFS Plug or FS2408 series) at Sannke Factory is a product designed and produced with the aim to optimize its functionality and quality based on the international standard ISO 8434-3 and the US standard SAE J1453. The production process of the 4F series has been automated, from raw material multi-station cold forging to automated lathe machining, assembly with ED-sealed elastic gaskets, and inspection and testing of plug components. This has resulted in a more efficient production process and improved quality control measures.
ORFS Caps and Plugs are a direct replacement for the FS2408 series and have gained wide popularity and usage in China due to their enhanced sealing performance and durability. Sannke's factory is open to working with global partners for the distribution or OEM cooperation for logo printing on ORFS caps and plugs. With a commitment to quality and excellence, the Sannke factory is dedicated to producing high-quality hydraulic fittings that meet global standards and exceed customer expectations.

O-Ring Boss Plugs

The O-Ring Boss Plug offered by Sannke Factory is a replacement for the plug of the 6408-H-O series (MORB Hollow Hex Plug) in the US market, providing a more efficient and cost-effective option. The design and production of this series have been optimized based on international standards such as ISO 8434-3 and the US standard SAE J1453, and the factory uses CCD vision inspection equipment to ensure quality control.
The production of the O-Ring Boss Plug is carried out by machines developed and improved by the Sannke factory itself, which allows for unparalleled cost and quality. As a testament to their confidence in their product, Sannke offers free samples of the O-Ring Boss Plug to interested parties.
With its reliable quality and efficient production process, the O-Ring Boss Plug has the potential to become a popular replacement option for the 6408-H-O series plug in the US market.

JIC Hydraulic Caps and Plugs

JIC hydraulic caps and plugs are commonly referred to as the "4J series" in China and the 2408 series or MJ plug in the United States. Hydraulic hose caps and plugs are extras that guard the open ends of hydraulic hoses against harm when they're not in use, such as during storage or transport. As they attach to hydraulic hose fittings, a tight seal is created to keep out dust and debris and guard against thread damage. These caps and plugs are designed based on the JIC-37 standard in the United States and are widely used in various hydraulic systems.
Sannke's factory has optimized the design and production process of the 4J series, also known as MJ plugs, with automation. The factory has implemented automated production lines that are capable of producing high-quality caps and plugs at an unparalleled cost.
In addition, the factory welcomes visitors to its production site located in Ningbo, China, to witness its Chinese-style automated production line in action. The factory prides itself on providing its customers with the highest quality hydraulic fittings, including the 4J series, and offers various OEM cooperation opportunities to global partners.

Hydraulic Flange Plugs

Our hydraulic flange plugs are specifically engineered to meet the highest production standards, adhering to SAE J518 and BSISO 6162 flanges, and providing a sealing design pressure of 6000 PSI or even higher with great quality and utmost safety.
Our facility is equipped with a state-of-the-art burst test bench and a self-made pulse test bench to verify that our goods fulfill these high standards. This enables us to put our hydraulic flange plugs through rigorous testing, guaranteeing that they fulfill our stringent quality standards.
With our hydraulic flange plugs, you can be confident that you are obtaining a product that is not only dependable and long-lasting but also meets the industry's highest quality requirements, which makes our product capable of withstanding the most extreme possible conditions.

Magnetic Plugs

Our magnetic plugs are engineered to the highest standards, including DIN 908, DIN 910, DIN 906, DIN 5586, DIN 7604, JIS D 2101, ISO 1179, and ISO 9974, to provide additional functionality and convenience. match your specific needs.
We also offer various OEM alternatives, including neodymium, iron boron, ferrite, and nickel-cobalt alloy, which enables us to create a magnetic solution that is ideal for your application.
Some examples of our products that can be fitted with magnets include VSTI+MAG, DIN908+MAG, DIN910+MAG, and NA+MAG. These products are engineered for easy application with the highest durability and reliability, providing a magnetic solution that will stand up to the demands of your application.
With our competence in customizing and dedication to client satisfaction, we are confident that we can deliver the best solution for your requirements.

Stopping Plugs

Our stopping plugs are machined to the highest standards, with a minimum damping hole size that is machinable to 0.3mm. This ensures that the flow of hydraulic fluid is precisely controlled with minimal disruption or loss of pressure.
We're proud to say that the accuracy of our damping holes reaches 0.02mm, a level of precision that is unmatched in the industry. This level of precision ensures that our stopping plugs perform at the highest level, with no leaks or other issues that can compromise the performance of your hydraulic system.
To achieve this level of precision, we use EDM equipment and drilling equipment from Brother Industries in Japan. These machines are equipped with a spindle speed of up to 40,000 rpm, ensuring that our stopping plugs are machined to the highest level of precision possible.
With our stopping plug products, you can rest assured that you are getting a product that is designed to meet the highest standards of quality and precision.

Bonded Seal Plugs

Our bonded seal plugs are engineered to meet the highest standards of quality and performance, including DIN 908, DIN 910, DIN 5586, DIN 7604, the 4B series, the 4BN series, and the 4MN series. Each of these standards represents a different set of requirements and specifications, allowing us to provide a bonded seal plug that is perfectly suited to your specific needs, either for high-pressure or low-pressure applications.
We take pride in our ability to produce bonded seal plugs that are of the highest quality and reliability. Our bonded seal plugs are engineered to resist the most extreme conditions, offering a dependable and secure seal.

DIN Compression Hydraulic Plugs

Our DIN compression hydraulic plugs utilize a sealing process that involves a 24-degree cone O-ring seal with ISO 8434 and DIN 2350. This process ensures a tight and secure seal that is resistant to leaks and other issues that can compromise the performance of your hydraulic system.DIN compression hydraulic plugs are designed to replace Parker's ROV series and VKAM series.
We're proud to offer a solution that is designed to meet the highest standards of quality and reliability, providing a level of performance that is on par with or exceeds that of Parker's ROV and VKAM series. Our DIN compression hydraulic plugs are easy to install and designed to provide a long service life, making them a cost-effective solution for your hydraulic system needs.

Thread Seal Plugs

Thread Seal Plugs provide a dependable and secure seal for threaded connections in hydraulic, pneumatic, and other fluid systems. Our Thread Seal Plugs are made of high-quality materials and are designed to satisfy the highest quality and performance criteria to provide sealing solutions while protecting internal threads from dirt, debris, and other impurities that can damage the threaded connection's integrity.
Our Thread Seal Plugs come in a variety of sizes and thread types, making it simple to choose the ideal solution for your unique requirements. Each plug is engineered to ensure a tight and secure seal, preventing leaks and other difficulties that can degrade your system's performance.