Premium Bonded Seals for High-Pressure Hydraulic & Pneumatic Systems

Bolt holes and threaded joints may appear trivial, yet unsealed they lead to
fluid loss, air ingress, and inefficiency. Bonded seals are the simple fix.
DEDE is dual workhorse line—self‑centering or non‑self‑centering—ensures
every connection holds tightly.
What Makes Them Special?
Self‑Centering Bonded Seals: Fixes automatically in the bore, making assembly
fool-proof, even in field service
Non‑Self‑Centering Bonded Seals: Ideal for flush mounting and full
compression sealing
Key Specs
Materials: Rubber types—NBR, HNBR, FKM—bonded to steel or stainless cores
Temperature range: -40 °C up to +250 °C depending on rubber
Pressure capability: Up to 40MPa in demanding oil/hydraulic circuits
Where You’ll Find Them
Pumps, motors, valves in machinery and robotics
Gearbox drain/fill ports in automotive and railway vehicles
Cylinder head plugs in automotive and industrial engines
Hydraulic valve manifold plates in wind turbines
Heavy-duty equipment in construction, mining, agriculture
DEDE – More Than Just Seals
Stock: 10K+ O‑rings and seals ready to ship
Custom: Tailor-made bonded seals from initial design to lab testing
Tech support: 30+ years of sealing problem-solving know-how
Brand Highlights
Own mold shop and bonding plant for consistent quality
Certified as High‑Tech Enterprise, contributing to China’s seal industry
cluster
Serving global markets in Asia, Europe, Americas with reliable supply
The TakeawayFrom the workshop to the factory floor, from prototype to
production—DEDE is bonded seals lock down your system. Whether self‑centering
or not, they keep hydraulic systems leak-free and operators worry-free.

Minimum Order: 500 pieces

Click to Enlarge