Type B PTFE Oil Seal for Hydraulic Equipment and Drone Transmission

Type B PTFE Oil Seals for Hydraulic Equipment and Drone Transmission

Technical Characteristics and Industrial Applications of Type B PTFE Oil Seals for Hydraulic Equipment and Drone Transmission‌

‌Type B PTFE Oil Seals（DSHmfcom）‌ are advanced sealing solutions based on polytetrafluoroethylene (PTFE) and carbon fiber composite materials, specifically designed for high-pressure, high-speed, and extreme temperature conditions. Their unique structure combines the dual advantages of dynamic and static sealing, making them suitable for rotational motion, shaft sealing, and bore sealing applications. ‌Type B PTFE Oil Seals‌ perform exceptionally well in media such as hydraulic oil, fire-resistant fluid, water, and gas, making them core sealing components in hydraulic equipment, standard cylinders, machine tools, drones, and other fields.

‌Material Characteristics and Structural Advantages‌
‌Type B PTFE Oil Seals‌ are primarily made of ‌PTFE + carbon fiber‌ composite material. PTFE provides chemical inertness, temperature resistance (-60°C to +260°C), and a low friction coefficient, while carbon fiber enhances compressive strength and wear resistance, ensuring stable sealing under high-pressure (≤3 MPa) and high-speed (≤18 m/s) conditions. ‌The axial tensile strength is increased by over 50% with carbon fiber‌, effectively suppressing the cold flow of PTFE and extending the seal's service life.

‌Key Performance Characteristics‌

‌Media Resistance‌：‌Type B PTFE Oil Seals‌ exhibit broad-spectrum tolerance to media such as hydraulic oil, fire-resistant fluid, water, and gas, with chemical stability superior to traditional rubber seals.

‌Dynamic Sealing Efficiency‌：Their ‌self-adaptive lip design‌ forms a self-lubricating film during high-speed rotation, reducing the friction coefficient to as low as 0.1, significantly lowering energy consumption and heat accumulation.

‌Extreme Environment Adaptability‌：No risk of brittleness at -60°C low temperatures and no softening or deformation at +260°C high temperatures, making them suitable for demanding applications in aviation, energy, and other fields.

‌Typical Industrial Applications‌

‌Hydraulic Equipment Sealing‌：After adopting ‌Type B PTFE Oil Seals‌, a heavy machinery company reported a 42% reduction in cylinder failure rates and annual maintenance cost savings exceeding 150,000 RMB.

‌Drone Transmission Systems‌：In high-speed rotation tests at 18 m/s, ‌Type B PTFE Oil Seals‌ operated continuously for 200 hours without leakage, contributing to a 15% increase in motor endurance.

‌Industrial Machine Tool Spindles‌：Their carbon fiber-reinforced structure resists corrosion from cutting fluids and particle intrusion, extending seal life to three times that of traditional products.

‌Installation and Maintenance Guidelines‌
When installing ‌Type B PTFE Oil Seals‌, ensure shaft surface smoothness (Ra ≤ 0.4 μm) to avoid damaging the sealing lip with burrs. ‌Pre-applying lubricating grease can reduce startup friction‌, and regular inspection of lip wear is recommended. Their modular design supports quick replacement, significantly reducing equipment downtime.

‌VI. Technological Development Trends‌

‌Nano-Enhancement‌：By adding solid lubricants such as molybdenum disulfide, the friction coefficient of next-generation ‌Type B PTFE Oil Seals‌ is expected to drop below 0.05.

‌Customized Processes‌：3D printing technology will enable rapid production of non-standard seals, meeting the lightweight requirements of custom equipment.

‌Intelligent Monitoring‌：Embedded sensors can monitor sealing surface pressure and temperature in real-time, advancing the development of preventive maintenance systems.

‌Type B PTFE Oil Seals‌ provide long-lasting sealing solutions for high-pressure, high-speed, and complex media environments through material innovation and structural optimization, serving as a critical guarantee for the reliable operation of modern industrial equipment.

Dongsheng Seals was established in 1992. Over the past 32 years, it has focused on sealing technology innovation, forming a doctoral team of over 10 members and establishing an industry-leading testing center equipped with dozens of high-speed and efficient production machines. The company is certified under ISO9001 and IATF standards, holds over 10 national patents, has developed 235+ material formulas and 1,725+ selection solutions, and maintains an inventory of over 1 million products with 100,000+ models and specifications. As a pioneer in China's sealing industry, Dongsheng （DSHmfcom） provides sealing system solutions for renowned enterprises such as Sany Heavy Industry, PetroChina, BYD, and Gree. Guided by the philosophy of "Dongsheng Intelligent Manufacturing, Sealing Reliability," the company continues to tackle technical challenges and contribute to China's industrial development.