DJF SEAL — GUANGZHOU, CHINA
B2B Hydraulic Seals & Seal Kits — Factory Direct Supply
DJF is a hydraulic seals and seal kits manufacturer and factory based in Guangzhou, China. We supply B2B buyers — distributors, hydraulic repair shops and project companies — with cylinder seal kits and individual seals for excavators, loaders, hydraulic breakers and hydraulic cylinders.
- ISO 9001:2015 Certified Factory
- 20+ Years Experience
- 10,000+ Stock Models
- 7–15 Day Global Delivery
B2B SUPPLY
Who We Supply
DJF works with trade and industrial buyers who purchase hydraulic seals and seal kits in repeat quantities, not one-off retail orders.
Distributors & Wholesalers
Repeat-order supply of hydraulic seal kits and individual seals with stable references and packing support for your own customers.
Hydraulic Repair Shops
Cylinder repair kits matched to the machine brand, model and part number your workshop already works with.
Project & Construction Companies
Kits for excavators, loaders and breakers used on site, quoted from your part number list or machine list.
OEM / ODM & Equipment Makers
Custom seals and kit assemblies produced to your drawing, dimension sheet or physical sample.
Rental & Maintenance Contractors
Fast-moving references for scheduled maintenance and breakdown repair across a mixed machine fleet.
Mining & Heavy Industry
Sealing components for heavy industry, mining and construction machinery applications.
PRODUCT SCOPE
Hydraulic Seals & Seal Kits We Manufacture
- Hydraulic Cylinder Seal KitsBoom, arm, bucket, bucket and outrigger cylinder repair kits assembled by reference.
- Piston Seals & Rod SealsSealing components for hydraulic cylinder piston and rod positions.
- Wiper / Dust SealsWiper seals for rod protection in dusty and outdoor working conditions.
- Buffer Rings, Wear Rings & Guide RingsSupport and guidance components used inside cylinder assemblies.
- O-Rings & Back-Up RingsStandard and application-specific O-rings with back-up rings.
- Oil Seals & Rotary SealsOil seals and rotary sealing components for pumps, motors and gearboxes.
- Hydraulic Breaker Seal KitsSeal kits for hydraulic breaker hammers, quoted by breaker brand and model.
- Custom / OEM SealsSeals produced to your drawing, dimension sheet or physical sample.
Product scope covers the seal and seal kit items above. Please send your part number list or machine list and our sales team will confirm the exact references available for your application.
APPLICATIONS
Machines & Cylinders We Supply Kits For
Cylinder seal kits and seals for construction machinery and hydraulic systems, priced from your part number, machine brand and model.
Excavators
Wheel Loaders
Backhoe Loaders
Hydraulic Breakers
Bulldozers
Cranes
Reference coverage across popular construction machinery brands, including Caterpillar, Komatsu, Hitachi, Kobelco, Volvo, Hyundai, JCB, Liebherr, SANY, XCMG and more. Brand names are used only to describe application coverage.
FACTORY & QUALITY EVIDENCE
Inside Our Hydraulic Seal Factory
ISO 9001:2015 certified factory. Our workflow connects engineering review, CNC machining, manual assembly, dimensional inspection and organised warehouse handling for B2B orders.
WHAT TO SEND
What to Send for a Quotation
Send what you have already — you do not need a complete list to start. Our sales team confirms the correct references, price and lead time with you.
- 1Part number. The seal or seal kit part number as printed on the part or packaging.
- 2Machine brand and model. For example the excavator, loader or breaker brand and model, and the cylinder position (boom, arm, bucket).
- 3Drawing or dimension sheet. PDF or DWG drawings with dimensions and tolerances where available.
- 4Photo or sample. A clear photo of the old part or a physical sample helps confirm the correct reference.
- 5Quantity. Required quantity per reference, and whether the order is repeat or one-time.
- 6Destination. Destination country, city or port so freight options and lead time can be confirmed.
FAQ
B2B Quotation FAQ
What is the MOQ for hydraulic seal kits?
MOQ depends on the item. Many stock seal kits can be supplied in small quantities, while custom or non-stock items may require a higher quantity. Please send your part number list and confirm the MOQ for each reference with our sales team.
Can you supply parts by part number only?
Yes. Send the part number and, where possible, the machine brand and model. If you do not have a part number, send the machine model, a photo and the main dimensions — our team will confirm the correct kit with you before you order.
Do you produce from drawings or samples?
Yes. Custom seals and kit assemblies can be produced to your drawing, dimension sheet or physical sample. Please send PDF or DWG drawings with dimensions, tolerances and material requirements where available, and confirm the specification with sales before ordering.
How long does delivery take?
Stock items are typically prepared for shipment within 7–15 days. Production lead time for custom items or large quantities is confirmed with our sales team after the quantity and specification are reviewed.
Can I get a sample before placing an order?
Samples can be arranged for evaluation. Sample availability, quantity and cost are confirmed with sales for each reference.
Which countries do you ship to?
We ship worldwide by express, air and sea freight. Please send your destination country and port so the available freight options can be confirmed for your order.
Are your seals original brand parts?
DJF manufactures and supplies hydraulic seals and seal kits. We do not present our products as original equipment manufacturer branded parts, and no OEM fitment claim is made on this page. Please confirm the exact requirement with sales before ordering.
What payment and shipping terms do you offer?
Payment terms, packing and shipping method are confirmed with you at quotation stage according to order value, destination and product type.
REQUEST A QUOTE
Send Your Hydraulic Seal & Seal Kit Enquiry
Send your part number list, machine models, drawings or sample photos and our sales team will confirm price, stock status and lead time. B2B enquiries from distributors, repair shops and project companies are welcome.