Name: China Customized PTFE Rotary Shaft Seal Manufacturers Suppliers Factory - Good Price - DEDE Seal
Brand: DEDE Seal
SKU: 314679300

DEDE Seal Co., Ltd. is one of the most reliable manufacturers and suppliers of ptfe rotary shaft seal in China. If you're going to buy bulk ptfe rotary shaft seal made in China, welcome to get pricelist from our factory. All customized seals are with high quality and competitive price.

Stainless PTFE Rotary Shaft Seal is developed for harsh working scenarios where standard rubber oil seals fail to deliver long service life. It adopts integrated structure of anti-corrosion stainless steel outer shell plus precisely machined PTFE sealing lip. This composite structure achieves outstanding comprehensive performance: stable sealing under high rotation speed, excellent high temperature resistance, powerful chemical medium tolerance, and ultra-low friction to cut operating heat.

Product Features

Precision-molded PTFE sealing lip, outstanding anti-abrasion performance for long-cycle continuous rotation

Full stainless steel outer casing, strong anti-rust & anti-corrosion ability, fit for damp and chemical environments

Specially optimized structure to adapt high-speed rotating shaft operation without sealing failure

Ultra-low friction coefficient, effectively lower friction heat to avoid seal aging and deformation

Broad medium compatibility, matched with most industrial oil, solvent and chemical fluids

Typical Applications

● Chemical processing equipment & petrochemical transmission pumps

● Food processing machinery and food-grade conveying mixers

● Pharmaceutical production equipment

● Various industrial liquid pumps, agitators and compressors

● High-speed industrial servo motors & drive motors

● Wind power transmission gearboxes, automotive transmission assemblies

Product Parameters

Parameter Item	Technical Data
Core Material	Pure PTFE / Filled Modified PTFE
Working Condition	High-speed rotation, high temperature, corrosive media, dry running
Temperature Range	-60℃ ～ +225℃
Max Linear Speed	≤30m/s
Max Working Pressure	≤3.5MPa
Friction Coefficient	Ultra-low friction, self-lubricating, non-crawling
Applicable Media	Lubricating oil, hydraulic oil, acid-base solvent, chemical media, gas
Size Specification	Full standard sizes, custom non-standard sizes available

FAQ

Q1: Why choose PTFE rotary shaft seals instead of regular rubber oil seals?

A: Conventional rubber oil seals rely entirely on elastic compression to achieve sealing, and they easily degrade under fast rotation, corrosive fluids and long-time operation. Made of chemically inert fluoropolymer, PTFE seals withstand high velocity, extreme heat and harsh chemical environments steadily, delivering a drastically longer service cycle.

Q2: Does PTFE rotary shaft seal work for high-speed equipment with persistent oil leakage?

A: Definitely. Standard rubber seals generate massive friction heat at high rotating speeds, leading to lip scorching and leakage. Thanks to its ultra-low friction characteristic, this PTFE seal avoids rapid abrasion and thermal damage, sustaining reliable sealing performance on high-speed compressors and rotary pumps over long hours.

Q3: Can this PTFE seal be used in equipment with strong corrosive chemical fluids?

A: Yes. The PTFE material has outstanding chemical inertness and rarely reacts with acid, alkali and organic solvents. It will not swell, crack or deform when contacting corrosive media, making it the ideal sealing choice for chemical production machinery running continuously.

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