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In modern industry, where equipment uptime and operational efficiency directly impact profitability, choosing the right sealing solution is essential. The TG4 triple‑lip oil seal series represents a new generation of high‑performance rotary shaft seals designed to maintain optimal fluid pressure, protect critical components, and reduce total lifecycle costs. Engineered for Harsh Conditions Developed using advanced sealing technology and premium materials, the TG4 series demonstrates outstanding performance in environments where traditional seals may quickly degrade. Its robust construction ensures reliable operation in the presence of abrasive particles, fluctuating pressures, and elevated temperatures. This resilience makes it a dependable choice for sectors where failure is not an option—ranging from industrial power systems to precision automation. At the core of the TG4 triple‑lip oil seal series is a carefully engineered combination of nitrile butadiene rubber (NBR) and fluoroelastomer (FKM), selected for their complementary performance characteristics. NBR delivers excellent elasticity, abrasion resistance, and sealing stability across a wide temperature range. Its balanced oil resistance and mechanical strength make it an ideal choice for general industrial and automotive lubrication systems. FKM, on the other hand, offers superior high‑temperature tolerance and outstanding chemical resistance, ensuring reliable performance even when exposed to aggressive fuels, synthetic lubricants, or hydraulic fluids. By integrating these two material technologies into the sealing lips, the TG4 series achieves a balance of flexibility, durability, and compatibility with diverse operating media. The multi‑lip profile ensures a consistent contact interface, distributing pressure evenly and reducing localized wear — a design approach that supports long‑term sealing integrity in both standard and high‑demand environments. The defining feature of the TG4 triple‑lip oil seal series is its multi‑lip configuration. Three precision‑engineered sealing edges work together to: · Retain lubricant within the system. · Exclude harmful contaminants. · Distribute contact pressure evenly to reduce wear. This configuration not only extends the service life of the seal but also protects mating components such as bearings and shafts, helping operators avoid unscheduled downtime. Performance and Application Scope The TG4 triple‑lip design supports a wide pressure range and retains sealing efficiency across variable shaft speeds. Its application spectrum includes: · Pumps and electric motors operating in continuous industrial duty cycles. · Gearboxes and engines where temperature fluctuations and lubricant retention are critical. · Industrial machinery, robotic arms, and automated production systems that require precise movement with minimal maintenance. · Energy generation equipment including wind turbines and hydraulic drives. · Heavy construction and agricultural machinery exposed to dust, mud, and vibration. · Water treatment plants handling chemically treated fluids. · Marine vessels where saltwater corrosion resistance is vital. · Rail, aviation, and automotive sectors—from high‑speed trains to heavy‑duty trucks. Simplified Installation and Versatility TG4 seals are designed to integrate seamlessly into standard housing dimensions, enabling straightforward replacement without complex re‑machining. This precision fit reduces the risk of misalignment, helping ensure consistent sealing performance over the entire operating cycle. Compatibility with a wide range of housing geometries means the TG4 series can be specified across diverse platforms within a single facility—streamlining inventory management and simplifying procurement processes. Operational Efficiency and Sustainability By preventing lubricant leakage and minimizing friction losses, the TG4 triple‑lip oil seal series supports both energy conservation and reduced consumable usage. This dual advantage translates to lower operational costs and a smaller environmental footprint, aligning with industry trends toward sustainable manufacturing. Quality Assurance and Compliance Every TG4 seal is produced under stringent manufacturing controls and subjected to multi‑stage inspection protocols. Dimensional accuracy, material integrity, and functional performance are validated before shipment, ensuring the end‑user receives a product that meets internationally recognized standards for reliability and safety. The TG4 triple‑lip oil seal series embodies the balance of engineering precision, material science, and application versatility that modern industries demand. From high‑load industrial machinery to mission‑critical transport systems, it delivers reliable sealing performance that protects equipment investments and supports uninterrupted operation.

Minimum Order: 500

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If you’ve spent time around rotating equipment, you already know—an oil seal’s condition can make or break uptime. Once oil leaks out or grit makes its way in, you’re no longer talking about “minor maintenance”; you’re looking at a chain reaction that can take down bearings, gears, and even the entire drive system. Choosing the right seal type isn’t theory—it’s survival. Two designs you’ll bump into again and again on the shop floor are the R23 double-lip seal and the TB metal-case seal. Both work, both are proven—but they’re not interchangeable. Spotting the Difference A R23 seal is easy to pick out. Picture a steel case buried under a rubber coating, the outside pressed snug into the housing bore. Inside, a spring- energized main lip rides the shaft, keeping the oil where it should be. Just ahead of it sits a slimmer “dust lip,” almost like a miniature squeegee, whose only job is to block dirt and grit. That rubber-clad outer diameter also helps when the bore is a little rough or slightly out of round—the kind of thing you see in older gearboxes or hastily machined housings. The TB seal feels more rigid in the hand. It’s all metal on the outside, with the elastomer bonded inside where the lips are formed. The main lip still has its spring, and the dust lip is separate, but here the rigid shell gives it better dimensional stability. That’s why it’s often the choice for big- diameter shafts or machinery that sees higher mechanical loads. Materials and What They Can Handle Both designs can be ordered in the usual range of elastomers. NBR will do fine for most mineral oils at moderate temperatures. FKM is what you reach for when heat and aggressive media are in play. ACM holds up well in automatic transmissions that run hot. For weather resistance or high-pressure duty, EPDM or HNBR come into their own. For the case, R23 versions usually stick with carbon steel under that rubber jacket. TB types may move to stainless when corrosion is on the table—think marine drives or outdoor wind turbines. Where They Shine Head-to-head, the R23’s dust-lip arrangement gives it an edge in dirty environments—agriculture, sawmills, places where airborne dust is the norm. The TB wins when rigidity counts, like in large gearboxes, propulsion shafts, or any setup where the bore alignment is spot-on and the seal OD must hold shape under stress. Installers know the R23 is more forgiving if the bore finish isn’t perfect. The TB, on the other hand, expects precision—sloppy fits will cost you. Industry Sightings You’ll see R23s in pumps, small motors, farm equipment, home appliances, and plenty of hydraulic systems. TBs are more at home in heavy industry—steel mills, marine propulsion, big construction drivetrains, and wind turbine main shafts. Choosing Between Them Most engineers start with the shaft and bore size, then check the environment: Is there dust? Is there moisture? Are we fighting chemicals? Temperature range, shaft speed, and any pressure differential all play in. For example, that wind turbine main shaft—with its large diameter, outdoor exposure, and dust risk—might get a TB in stainless steel for rigidity and corrosion resistance. A combine harvester’s drive shaft? The R23’s double-lip dust barrier will keep mud and grit out season after season. There’s no “better” in R23 vs. TB—only the right choice for the conditions. Knowing their quirks and strengths is how you keep machines running longer and with fewer surprises. And if you want backup in that decision, our team can walk you through it—drawing not just from catalogs, but from years of real- world fixes that worked when the clock was ticking.

Product Features of HW™ Distal Access Catheter Design of oversized catheterlumen. Segmental design,strong resistance to compression and bending. The distal end of the catheter is highly flexible and easy to reach tortuous lesions. Smooth lining,smooth access. High efficiency suction function. HW™ Distal Access Catheter Intended Use The Distal Access Catheter is indicated for use in facilitating the insertion and guidance of an occlusion catheter, infusion catheter, or other appropriate microcatheter into a selected blood vessel in the neuro and peripheral vasculature, It can be used to facilitate the introduction of diagnostic and therapeuticagents, It is notintended for use in coronary arteries. Structure Composition Distal access catheter consisted of catheter,introducer sheath and shaping mandrel.

Zebra Guidewire Product Features Yellow and black spiral stripes design makes it easy to judge the movement of the guide wire under endoscopy . Excellent X-ray visualization. The tapered head diameter design can improve the success rateof surgery. Provide excellentkink resistance, torsion force, push force and control ability. PTFE Tip: Zebra-pattern tip makes it easier to identify guidewire movement under fluoroscopy and reduces radiation exposure during device exchanges. Application Range HW™ Zebra Guidewire for GI endoscopy is indicated for use in selective cannulation of the biliary ducts includingthe common bile, pancreatic, cystic, right and left hepatic ducts and to aid in theplacement of diagnostic and therapeutic devices during bronchoscopic procedures. Structure Composition Mix type is composed of a core wire, PTFE cladding and the taper tip with a polyurethanecladding.

Product Features Strong Stainless steel core wire offers ideal torque transmission and kink resistance. Over-the-wire coil offers outstanding deliverability and radiopacity. Hydrophilic coating design: very low friction coeficient, long lasting lubrication, excellent biocompatibility. Polyurethane containing tungsten cladding: clearer development Multiple tip fexibiity options,including regular types and stif types design: accurately meet the clinical needs It has a variety of conventional hardness and hardening models Intended Use HW™ Angiographic Guidewires are hydrophilic guide wires and are intended for facilitate the delivery of  , percutaneous catheters into the  peripheral vasculature. This device is Supplied sterile in a peel-open pouch. Intended for one-time use. Our angiographic guidewires are ready-made and approved by regulatory authorities, specifically designed to deliver catheters for various clinical applications. Our existing products enable medical device companies to achieve rapid market access. We adhere to high-quality standards by strictly implementing clinical and regulatory requirements.

Product Features The PTFE coating on the near surface and the hydrophilic coating on the far end provide an extremely low coeffcient of friction, good abrasion performance and excellent bio-compatibility. The tip end can be shaped and the distal end diameter can be designed to enhance the guidewire penetration. Stainless steel core wire has strong braced force, excellent push-ability and torque conductivity. Distal polyurethane containing tungsten cladding for excellent development effect. A variety of tips flexibility, providing abundant clinicaloptions. Application Range 0.014in HW™ Controllable Guidewire: The product is intended to facilitate the placement and exchange of balloon dilatation catheters or other therapeutic devices during Percutaneous Transluminal Angioplasty(PTA)or other intravascular interventional procedures. The product is not intended for use in the cerebral vasculature. 0.018in HW™ Controllable Guidewire: The product can be torqued to facilitate the selective placement of diagnostic or therapeutic catheters. This device is intended for peripheral use only, A torque device (pin vise)is included with each wire to facilitate directional manipulation of the guidewire. Structure Composition HW™ Controllable Guidewire is composed of a core wire and coating layer, the surface of the proximalend is coated with PTFE, the distal end of the hydrophilic coating, can be equipped with mandrel, torque device.

Product Features Super strong core wire: Ideal torque response and maneuverability. A nitinol alloy core for optimal performance and kink resistance. Hydrophilic coating design: Extremely low coefficient of friction, long-lasting lubrication, excellent biocompatibility. Polyurethane containing tungsten cladding: Tungsten-infused polyurethane jacket provides superior tip and wire radiopacity End Configuration: accurately meet clinical needs. Intended Use The HW™ Urologic Hydrophilic Coated Guidewire is intended for gaining ureteral access, to establish a tract, and to assist in the placement, replacement, and exchange of medical devices during urological procedures. Structure Composition HW™ Hydrophilic urology guidewire is composed of a nitinol alloy core wire, a polyurethane containing tungsten cladding and a hydrophilic coating. https://www.hainwisemed.com/

Microcrystalline wax is primarily used for non-damaging metal surface polishing. Its core advantage lies in its ability to penetrate the micro- textures of metal surfaces with its fine particles for polishing, while also providing filling, cleaning, and rust-preventing functions. ‌ Polishing Characteristics Microcrystalline wax particles are typically micron-sized, capable of filling in microscopic grooves on metal surfaces to enhance gloss and smoothness. Its non-damaging properties prevent the scratches or deformation issues caused by traditional polishing methods, making it particularly suitable for precision metal products (such as automotive components and jewellery). ‌ Applications ‌Automotive industry: Repairing body scratches and maintaining body gloss. ‌ ‌Home appliances: Polishing stainless steel kitchenware and bathroom fixtures. ‌ ‌Jewellery: Enhancing the gloss of gold and silver jewellery. ‌ ‌Industrial applications: Surface treatment of mechanical parts. ‌

When a machine grinds to a halt because of a missing seal, you don’t always have the luxury of waiting for the exact molded O-ring size to arrive. That’s where O-ring cords step in. They’re simply continuous lengths of round elastomer, ready to be cut and joined into whatever diameter your application calls for. Not a replacement for every sealing need—but an invaluable tool when speed and flexibility are top priority. When to Reach for O-Ring Cords · Tight access – If the groove is trapped inside an assembly you can’t easily dismantle, you can lay a cord in place and join the ends without a full teardown. · Zero spare parts on hand – No stock for that exact AS568 size? Cut and bond a o ring cord to get production moving again. · Static service only – The joint will always be your weakest link, so these cords are best in non-pressurized, non-moving interfaces. For pressure or motion, molded O-rings—or even an X-ring—are the safer bet. Material Options · NBR (Nitrile) – Budget-friendly, reliable with most lubricating and hydraulic oils, but heat limit around +125 °C. Not ideal outdoors long-term due to UV aging. · FKM (Viton®) – Higher temperature resistance (up to +250 °C), strong against many chemicals, but avoid hot water/steam. Stiffer at low temperatures (−20 °C and below). Your decision should balance four factors: the fluid or gas being sealed, operating temperature peaks and averages, pressure conditions, and uptime needs. In regulated industries or with harsh solvents, always confirm the compound’s compliance and compatibility. Getting the Joint Right · Cut quality counts – Whether you go with a straight cut or a scarf joint, keep it clean and square. The adhesive layer should be thin and even—excess glue won’t help. · Better alignment pays off – Heat-vulcanizing or using alignment sleeves can reduce seam stress, which matters in precision grooves. · Mind the groove design – All standard O-ring groove rules still apply: squeeze, chamfer, and surface finish all affect sealing. Remember—the seam will usually fail first. If your environment cycles in temperature or causes swelling, expect to replace the cord on a schedule. Where They Excel · Static covers, flanges, and access plates in pumps, gearboxes, and housings. · Large custom diameters—think inspection ports on tanks, process vessels, and wind turbine gearcases. · Enclosures for robotics or electronics where seals aren’t under pressure. · For mission-critical systems in aerospace, rail, or defense, O-ring cords are generally a short-term workaround, not a permanent fix. Tips for Maintenance Teams · Choose cross-section size to match wear tolerance and groove control. · Record seam position and adhesive type for future reference. · Keep spare cord stock in both NBR and FKM for rapid response. The DEDE Advantage With over three decades in sealing technology, DEDE supplies O-ring cords in a wide range of materials and sizes, along with molded O-rings, oil seals, and precision cords. Whether it’s a rush delivery or a full custom solution—from material selection to prototype—we help minimize downtime and maximize seal life. Our products serve industries in over 80 countries, backed by in-house manufacturing, testing, and recognized technology innovation status. If you need a seal now, and a closed ring isn’t an option, O-ring cords can save the shift. For pressure, motion, or long-term reliability, switch to molded rings or specialized profiles once the emergency is past. Tell us your medium, temperature, pressure, and downtime limits—we’ll match you with the most reliable option.

Minimum Order: 100