About Fujis Seal | Hydraulic Seal Kits for Construction Machinery

Fujis Seal operated by XIAMEN FENGJUN GONGMAO CO., LTD is a hydraulic seal and seal-kit manufacturer and supplier for construction machinery in China. With more than 20 years of experience in the hydraulic field, we help equipment owners, repair workshops, parts distributors and maintenance teams identify aftermarket replacement seals for hydraulic repair applications.

Who Is Fujis Seal?

Fujis Seal specializes in hydraulic sealing products and application support for construction and industrial machinery. Our work combines seal-kit supply, equipment application data, OEM part-number cross-referencing and dimensional identification. Our objective is to help customers select the correct kit before shipment and reduce avoidable downtime, rework and purchasing errors.

Main Products

  • Hydraulic cylinder seal kits
  • Excavator boom, arm/stick and bucket cylinder seal kits
  • Backhoe loader, wheel loader and dozer cylinder seal kits
  • Hydraulic breaker and rock-breaker seal kits
  • Track-adjuster seal kits
  • Main-pump and hydraulic-motor seal kits
  • Individual hydraulic seals, O-rings, wear rings and guide elements
  • Custom seal kits based on samples, dimensions, drawings or seal lists

Customers can browse the online seal-kit catalog or request help when an application is not listed.

Equipment Types We Support

Our primary focus is construction machinery and hydraulic equipment, including excavators, mini excavators, hydraulic breakers, backhoe loaders, wheel loaders, bulldozers, cranes and other machines that use hydraulic cylinders, pumps or motors.

Brands Covered

Our application catalog includes replacement seal kits identified for equipment from Caterpillar/CAT, Komatsu, Hitachi, JCB, Case, Volvo, Doosan, John Deere, Kobelco, Hyundai, New Holland, Furukawa and other construction-equipment and hydraulic-breaker brands. Manufacturer names and part numbers are used for compatibility and product identification.

OEM Part-Number Cross-Reference Capability

Fujis Seal uses equipment application data to cross-reference OEM and existing seal-kit numbers with machine brands, models and hydraulic component positions. A part number is the preferred starting point, but our technical support team can also compare the machine model, serial-number range, cylinder position, rod and bore dimensions, old-seal photos and packaging labels. Because similar machines can use different cylinders, every available identifier should be checked before ordering.

Custom Seal and Seal-Kit Capability

When a standard kit is unavailable, we can evaluate a custom solution using an existing seal sample, technical drawing, dimensional record or complete seal list. Custom feasibility depends on seal profile, dimensions, material, operating conditions, quantity and packaging requirements. OEM/private-label and bulk requirements can also be discussed.

Quality Control and Fitment Review

Our quality process begins with application verification. We review the supplied part number, machine information, component position and available dimensions before recommending a kit. Seal materials are selected according to their function, and orders are checked against the confirmed application information before shipment. Customers should still compare the product listing and received parts with the original components before installation.

Seal Materials

Depending on the application, our kits may use PU polyurethane, NBR nitrile rubber, HNBR, PTFE, rubber compounds, nylon and POM wear or guide elements. Different materials perform different sealing functions, so the exact material combination varies by kit. Customers using unusual temperatures, pressures or hydraulic fluids should provide their operating conditions for review.

Worldwide Shipping

Fujis Seal ships internationally from China using carriers such as DHL, FedEx and UPS. Delivery availability, freight charges, customs duties and taxes depend on the destination. Orders are normally prepared for dispatch within three working days after payment, and express delivery commonly takes approximately 7–10 days, subject to the destination and carrier. See our Shipping Policy for current details.

After-Sales Support

Customers should inspect orders after delivery and contact us promptly if an item is wrong, damaged or defective. Our published policy provides a 30-day return-request period for eligible wrong or damaged items, subject to the stated conditions. Selected products also include a 12-month quality warranty as stated on their product pages. Review the Return & Refund Policy for eligibility and instructions.

Technical Support Team

Our seal-kit support team assists with product identification, OEM cross-reference checks, dimensional matching, material questions and custom-kit inquiries. For the fastest review, provide the machine brand and model, cylinder or component position, part number, serial number when relevant, photos, dimensions, required quantity and delivery country.

Contact Fujis Seal

Use the contact page to request a seal-kit recommendation, quotation or custom solution.

Frequently Asked Questions

Is Fujis Seal an OEM brand?

Fujis Seal supplies aftermarket replacement seals and seal kits. Equipment manufacturer names and OEM references are used to identify compatible applications. Unless a product page expressly states otherwise, products are not represented as being manufactured or endorsed by the equipment brand.

Can Fujis Seal identify a kit without an OEM part number?

Often, yes. Machine details, cylinder position, nameplate information, old-seal photos and accurate rod, bore and seal dimensions can be used to investigate the application. More complete information produces a more reliable recommendation.

Can Fujis Seal make a seal kit that is not in the online catalog?

Custom and unlisted applications can be evaluated from samples, drawings, dimensions or seal lists. Contact the technical support team to confirm feasibility, materials, quantity and lead time.