DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of ptfe shaft seal in China. If you're going to buy bulk ptfe shaft seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.
DEDE PTFE Shaft Seal is a high-performance rotary sealing part tailored for tough working conditions including high rotation speed, high temperature and corrosive fluid contact. The integrated PTFE sealing component features outstanding abrasion resistance, and keeps steady sealing effect even after thousands of long continuous operation cycles, effectively avoiding frequent seal replacement caused by rapid aging and wear of ordinary rubber seals.
Selection Recommendations
Four core factors need to be confirmed to select matching PTFE shaft seal:
- Surface smoothness of rotary shaft
- Actual operating rotation speed
- Contacted working medium (oil, solvent, acid, alkali etc.)
- Internal installation space size of equipment PTFE shaft seals prioritize ultra-low friction and ultra-long service life, which is the optimal choice for scenarios where the elastic property of traditional rubber seals cannot meet demand.
Typical Applications
● All kinds of industrial fluid transfer pumps, magnetic pumps and metering pumps
● Anti-corrosion chemical reaction equipment and chemical delivery units
● Screw compressors, vacuum compressors and air compression systems
● High-speed servo motors, drive motors and spindle motors
● Sanitary food processing and pharmaceutical production machinery
● All types of high-speed rotating transmission equipment

Product Details
Precision full-circle sealing section
The balanced full-circle structure ensures uniform stress distribution without stress concentration. It adaptively compensates for slight shaft eccentricity, runout and wear gaps, maintaining consistent sealing pressure and eliminating partial micro-leakage and eccentric wear.
01
Multi-formula modified PTFE material
Multiple modified formulas including pure PTFE, glass fiber filled, carbon fiber filled and graphite filled are optional. Modified materials optimize hardness, wear resistance and deformation resistance to adapt to high-speed, high-pressure, heavy-wear and corrosive working conditions.
02
Reinforced stainless steel outer frame
The integrated stainless steel frame provides high structural rigidity and stable coaxiality. It resists vibration and impact from high-frequency equipment operation, preventing seal loosening, offset and falling off to enhance overall structural stability.
03
Precision elastic energy storage structure
The high-precision energizing component automatically adjusts compression force according to operating pressure and shaft movement. It achieves tight leakage-proof sealing in static state and low-resistance smooth operation in dynamic state, balancing sealing performance and operational flexibility.
04
Micron-level mirror turning process
The sealing surface is polished to mirror smoothness with micron-level precision, minimizing shaft friction loss and avoiding shaft surface scratching to extend the service life of both the seal and the shaft.
05
FAQ
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