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Technical Overview of Rolling Mill Oil Seals: Design, Materials, and Applications
Rolling mill oil seals are indispensable key components in the steel production and metal processing industries. They are primarily used to prevent lubricant leakage, block contaminants from entering the bearing system, and maintain stable equipment operation under high-load, high-speed rotation ...Read more -
PEEK Seal Selection Guide: A Comprehensive Pros and Cons Evaluation from 250°C High Temperature to High-Pressure Corrosion Environments
Polyether Ether Ketone (PEEK) is a high-performance semi-crystalline thermoplastic special engineering plastic that is highly favored for sealing applications under extreme conditions. PEEK seals (including O-rings, backup rings, lip seals, valve seats, gaskets, etc.) are widely used in oil &...Read more -
How to Distinguish Between Glyd Ring and Stepseal
In hydraulic and pneumatic systems, seals are critical components that ensure efficient system operation. Among them, the Glyd Ring and Stepseal (also known as Step Seal) are common composite seals widely used for piston and piston rod sealing. Although both share similarities in materials and b...Read more -
The Silent Guardian: A Comprehensive Analysis and Future Evolution of Hydraulic Sealing Technology
Within modern industrial systems, hydraulic technology functions as an invisible “river of power,” driving behemoths from massive tunnel boring machines to precision injection molding equipment. At every critical juncture of this power river stands a vital, silent guardian—the hydrau...Read more -
Guangdong Delong Sealing Technology Co., Ltd. ——————— 2026 Spring Festival Holiday Notice ———————
Spring Festival Holiday Notice 2026 Guangdong Delong Sealing Technology Co., Ltd. Dear Valued Customers, Thank you for your continued trust and support. Please be informed that our office will be closed for the Chinese Spring Festival from: February 12, 2026 (Lunar Dec. 25) to February 23, 2026 ...Read more -
Production Process and Flow of Skeleton Oil Seals
Skeleton oil seal, also known as radial shaft seal or lip seal, is a widely used sealing element in mechanical equipment. It is primarily designed to prevent lubricant leakage and ingress of external contaminants into rotating shaft systems. Composed of a rubber sealing body, metal skeleton, and...Read more -
Application of Ceramic Fiber-Filled Metal O-Rings in High-Temperature Sealing Technology
Introduction O-rings, as a common static sealing element, are widely used in flange connections, valves, and pressure vessels. At room temperature, rubber or polymer O-rings suffice; however, in high-temperature (>500°C) or extreme environments (such as vacuum, high pressure, or corrosive med...Read more -
Hydraulic Cylinders’ “Invisible Guardians”: A Complete Guide to Guide Strips and Guide Rings
Guide strips and guide rings are among the most critical guiding elements (also commonly called wear rings, support rings, guide rings, or wear bands / guide strips) in hydraulic and pneumatic cylinder systems. Though small in size, they directly impact the service life, motion smoothness, seali...Read more -
The Invisible Revolution of Gas Seals: How Dry Gas Seals Became the Gold Standard for Modern Compressors
Gas seals are critical components in modern industrial equipment, designed to prevent the leakage of gas media. Their most representative and widely used form is the dry gas seal (DGS), which has become a core technology in high-speed rotating machinery such as centrifugal compressors, screw com...Read more -
Bronze as the Bone, PTFE as the Soul: How Self-Lubricating Composite Materials Solve Industrial Friction Challenges
Among high-performance engineering materials, the bronze-based embedded self-lubricating composite material, composed of bronze and polytetrafluoroethylene (PTFE), plays an irreplaceable role in solving severe tribological problems due to its unique design concept and outstanding comprehensive p...Read more -
PTFE Cup Seal Advanced Guide: Choose the Right Filler and Save up to 80% on Maintenance Costs
Introduction PTFE cup seals (also known as PTFE piston cups or leather cups in some contexts) serve as core sealing elements in reciprocating systems. Made primarily from polytetrafluoroethylene (PTFE), they offer an extremely low friction coefficient (0.02–0.10), outstanding chemical stability,...Read more -
Crankshaft Rear Oil Seal: Function, Technology, and Application Analysis
The crankshaft rear oil seal is a critical component in the engine sealing system. Its performance directly affects the engine’s reliability, emission levels, and service life. This article aims to comprehensively analyze the core functions, material science, key technical requirements, fa...Read more