PTFE Piston Rings

Polytetrafluoroethylene (PTFE) seals and piston rings have started to replace their carbon counterpart as PTFE seals and rings offer greater durability, have a longer operating life, and can be operated at various pressures, velocities and temperatures.

PTFE seals and rings are becoming more common in a variety of applications and industries because of the unique advantages they offer.

PTFE Piston Rings and Guide Rings (Rider rings) for dry-running applications are currently a focal point of technical development. 

They significantly reduce a machine’s operating costs and, in today’s increasingly environmentally aware society, make it easier for operators to fulfill stricter environmental legislation.

Properties

Exceptionally low friction coefficient in combination with metals and plastics
Antiadhesive behavior without any stick-slip effect
High elongation properties enabling easy fitting
of sealing and guide rings to one-piece pistons
Exceptionally large temperature range from –200°C to +260°C
Chemically resistant to almost all solid, liquid, and gaseous media
Ageing-resistant
Nonflammable
Physiologically neutral in the stated temperature range

Suitable for the Following Application Areas

Compressors operating under full- and low-lube conditions
Gas rotary pumps
Expansion machinery
Liquid gas and vacuum pumps
Rocking piston pumps
Rotary compressors for loading/unloading of silos
Generation of oil-free compressed air for the
food processing industry, pharmaceutical industry, and dentistry
Compressed air for the craft and do-it-yourself market
Pneumatic hammer drills
Automotive technology, including ride leveling
and air-conditioning systems

Source:https://www.sukoptfe.com/ptfe-piston-rings

PTFE Piston Seals and Rod Seals

The rod seal is the most critical seal on any type of fluid power equipment preventing leakage of fluid from within the cylinder to the outside. Leakage through the rod seal can reduce equipment performance, and also in extreme cases can cause environmental issues.

PTFE piston seals (PTFE rod seals) as Spring-energized seals and memory packings are always the ideal choice for sealing static or dynamic pistons and rods.

Properties

Outstanding dry-running characteristics
Low wear
Low friction
Variable friction conditions through choice of spring characteristics
Extremely low breakaway forces even after prolonged downtimes
No stick-slip effect even at low sliding speeds
High dimensional stability
High chemical and thermal stability
No volumetric change by swelling or shrinkage
Compact seal, suitable for O-ring assembly spaces in acc.
Good cost-benefit ratio
Dimensions from Ø 2 to 3,000 mm available
Very good wiping effect with abrasive media, such as paints and lacquers
Sterilizable
Easy to rinse

Suitable for the Following Application Areas

Automotive industry, e.g., in gasoline direct injection and in headlight cleaning devices;
General mechanical engineering, e.g., in valves, solenoid valves, CNC machines, compressors, and vacuum pumps as well as tank systems;
Aerospace industry, e.g., in landing gear systems;
Food processing industry, e.g., in filling machines and metering systems;
Pneumatics, e.g., in cylinders and other pneumatic components;
Medical engineering and analytics, e.g., in chromatography and endoscopy;
Offshore technology, e.g., as petroleum and natural gas seals;
Chemical plant and equipment technology, e.g., in apparatus and container engineering;

Source:https://www.sukoptfe.com/ptfe-piston-seals-and-rod-seals

PTFE Laminates

Laminates are reinforced PTFE, consisting of a PTFE film or plate on the one hand and a substrate on the other. The layers of material are firmly bonded to each other. 

Possible substrates include fabrics, fibers, or knitted fabrics as well as films. They consist, for example, of glass, metal, ceramics, elastomers, or high-performance polymers.
The structure may comprise two or more layers, and constructions with up to 7 layers are not uncommon.

Properties

Outstanding resistance to a wide range of chemicals;
Very broad functional temperature range, only limited at the upper end by resistance of the adhesive used;
Very good antiadhesive properties;
Dimensional stability and resistance to stress cracking;
No embrittlement, no ageing;

When modified PTFE is used as a film material, these properties are enhanced further by:Polymer structure with higher density and fewer pores;Lower permeability;Better weldability;

Application:Linings in plant engineering;Components for electrical and electronic applications;Diaphragms in pump or sensor construction;Optically transparent compounds for textile construction;

Source:https://www.sukoptfe.com/news-ptfe-laminates

PTFE Bellows Forming Machine

PTFE bellows are used, for example, as compensating elements between engineered parts. By specifically using different fold geometries, any combination of properties can be achieved as required—for example, high flexibility or compressive strength.

PTFE Bellows Properties

Almost universal chemical resistance
FDA conformity for food and pharmaceutical products
Highly suitable for sterilization
Antiadhesive behavior
Large temperature range of –60°C to +200°C
Cost-effective series production from semifinished product to final product
High reverse bending strength
Good dimensional stability
Low tooling costs
Freedom of design

PTFE Bellows Application:

As compensation for expansion in pipe systems;For shielding sterile areas;Filling lines;Aseptic valves;Solenoid valves;Metering devices;Pumps and valves, coating technology, steel mills, fitting industry.

Manufacturer of standard & custom designed machines including bellows forming machinery. Bellows forming machines are available in different models with electronic controls & safety features.

Machine design engineering & consulting services are available.

Contact Us:https://www.sukoptfe.com/index.php?route=information/contact

Extruded PTFE Film

Sintered extruded PTFE film is a quality high modulus non-adhesive PTFE film manufactured by extrusion and sintering processes. The resulting film is characterized by high dielectric strength and chemical resistance, low moisture absorption and resistance to permeability.

PTFE Extruded Film Tape, a PTFE extruded film with silicone adhesive, provides an exceptionally slick surface when applied and resists curling during unwind. The PTFE extruded film tape has a chemical resistant surface for sealing and masking.

The extruded PTFE film tapes lie flatter than the typical skived PTFE film tapes. With the thicker backing, it helps extend the service life, compared to thinner versions, when subjected to abrasion or wear. While providing excellent chemical resistance except to organic solvents, the silicone adhesive will be attacked by commercial organic solvents and is not recommended for applications requiring organic resistance.

Some applications where the PTFE extruded film tape can be used include easy-release surfaces on rollers, plates, belts and other surfaces where build-up of sticky materials and inks can occur. It may also be used for low coefficient of friction surface on rollers and formers to facilitate web movement, along with wrapping rubber nip rollers on hot polyethylene extrusion machines.

PTFE Square Rod

PTFE is a low friction fluoropolymer with outstanding chemical and weathering resistance. The working temp range is -20°F - 500°F. It has the lowest coefficient of any solid. It has no slip-stick characteristics; static and dynamic coefficients are equal. Nothing sticks with any strength to unheated surfaces. Both virgin and mechanical grades are UV stabilized. 

PTFE is a low friction fluoropolymer with outstanding chemical and weathering resistance.

Lowest coefficient of any solid
Has no slip-stick characteristics
Static & dynamic coefficients are equal
Nothing sticks with any strength to unheated surfaces
UV stabilized
Virgin grade
Temperature range: -20°F to 500°F
Meets FDA & USDA standards

Source:https://www.sukoptfe.com/ptfe-square-rod

PTFE slide bearing sheets

PTFE has the lowest friction coefficient of all plastics even if these are lubricated. Typical behaviour is whenever the load on PTFE increases friction coefficient becomes lower. PTFE has no "stick slip" behaviour which is unique in slide bearing technology.

Characteristics as stated above means an advantage for PTFE in bearing applications. Due to the fact no lubricants are required, PTFE (or compounds) is often used in food industry, road (bridge) construction, support of pipe systems and heavy installation constructions. By adding PTFE to the free movable construction parts (metal, rubber and so on) shrink and expansion, due to temperature movements, will not become an issue.

PTFE 100% virgin is a relatively soft material and can be too porous for heavy constructions. By adding fillers to the PTFE, required characteristics for specific applications will improve.
For example glass, bronze, graphite or carbon are commonly used. Friction coefficient will be slightly influenced due to these fillers. In general most optimal gliding construction with lowest friction is obtained in case PTFE is maximal loaded and counter surface is highly polished.

Properties PTFE

• Lowest friction coefficient
• No stick slip behaviour
• No cleaning required, material is chemical and weather resistant, does not age
• Simple engineered
• No material breakdown
• Electric and thermal isolating
• Absorption in movement

Source:https://www.sukoptfe.com/ptfe-slide-bearing-sheets

Types of Plastic Blow and Injection Molding

Each plastic part requires a specific manufacturing process which can be significantly different from one product to another. Injection molding is used to manufacture solid components while blow molding is used to make plastic products with hollow areas, such as bottles and containers

Injection stretch blow molding combines the injection molding and blow molding processes.The plastic is first molded into a solid preform, to create a threaded bottle neck. Once the preform cools it is fed into a stretch blow mold machine. The preform is then reheated using an infrared heater and blown into a plastic bottle with forced compressed air.

The Injection Molding Process

Injection molding is used to manufacture higher volume quantities of plastic products ranging in size from large components to small components requiring micro-precision accuracy.

There are many types of manufacturing  methods categorized under injection molding, such as thermoplastic injection molding, over molding, insert molding, cold runner molding and hot runner molding.

Thermoplastic Injection Molding

Thermoplastic injection molding uses thermoplastic polymer, meaning it changes to a liquid state when heated. Unlike thermoset plastics that cool into permanent solid, thermoplastics can be remitted into a liquid after cooling into a solid.

Overmolding

Overmolding, or two shot molding, is a process that covers an injection mold over another substance, such as metal, to improve the performance or durability of a product. A rubber-like compound, called thermoplastic elastomer (TPE), is a commonly used overmold material. An example of a TPE overmold application is the handle grips on a toothbrush.  Overmolds can also be used to seal products with parts made from several injection molds.

Insert Molding

Like overmolding, insert molding is an injection moldingprocess that combines two or more components into a single finished product. Insert injection molding inserts a component into the injection mold cavity and plastic material is filled around the insert. Inserts can add strength to a product and eliminate the need for additional parts to reduce the product weight.

Cold Runner Injection Molding

Cold runner molds use a sprue to fill the runners that inject plastic resin into the mold cavity.  In 2 plate molds, the runner system and parts are attached, and an ejection system may be used to separate the pair from the mold.The cold runner can reduce waste by recycling and regrinding the material, but this can also increase the total cycle time. Cold runner systems can be used for a wide variety of polymers and can allow for easy color changes.

Hot Runner Molds

Hot runner molds use a manifold to heat melted plastic resin and then send the material through a gate to fill the mold cavity. The two main types of hot runner molds are externally heated and internally heated.  The externally heated molds can be used with polymer that is less sensitive to thermal variations while internally heated hot runner molds allow for better control of material flow.

Because  hot runner molding  does not require the use of runners, potential waste material is reduced and  the recycling and regrind and process of virgin plastic does not impact the total run cycle time.

The Blow Molding Process

During the blow molding process, the raw plastic material is shaped into a hollow tube with one open end called a parison. The parison is pressed into a cooled metal mold and compressed air is forced into the parison. When the formed plastic cools and hardens, the metal mold opens and expels the product.

Source:https://www.sukoptfe.com/types-of-plastic-blow-and-injection-molding

PTFE Adhesive High-Temp Tape

PTFE high-temperature adhesive tape is produced by using base cloth weaved from imported glass fiber that is coated with polytetrafluoroethylene and processed with a special process. It is a new high performance and multipurpose composite material. Due to its excellent performance, it is extensively applied in the fields including paper making,foods, environment protection, printing and dyeing, garment, chemical engineering, glass, medicines, electronics, insulation, grinding wheel slicing and machinery.

1. With good wear resistance, penetration resistance, breakage resistance, it is easy to use and has long service life.
2. Applied in between -70°C and 260°C, it features weathering resistance and aging resistance. The actual application proves that when it is placed at 250°C for continuous200 days, both of its strength and weight will not be reduced; when it is placed at 350°C for 120 hours, its weight reduces by only about 0.6%; the original flexibility is well maintained at -180°C.
3.Non-adhesion: Smooth surface, not adhesive to any substance. Oil stain, smudge or other deposits adhered to its surface can be easily cleaned; almost all deposits such as paste, resin or coating can be easily removed.
4. Chemical corrosion resistance, resistance to strong acid, strong base and various organic solvents.
5. Chemical resistance and non-toxicity. Resistant to almost all chemical reagents.
6. High insulation (low dielectric constant: 2.6, tangent below 0.0025),ultraviolet-proof, anti-static.
7. Fire-proofing.

Main Applications

A. Coating of various high-temperature rollers, heating sheet and demoulding workpiece.
B. Sealing of foods, chemicals and plastic bags.
C. Pad pasting for sliding chute, hopper and aviation molds, also suitable forrollers of sizing machine and thermoplastic demoulding. It can be repeatedlyused and is easily replaceable.
D. Suitable for surface treatment requiring anti-sticking, anti-corrosion and high-temperatureresistant surface.
E. Applied in the fields such as packaging, thermoplastic, compound and sealing,electronics.

Industry:
1, LCD, FPC / PCB and other optoelectronics industry
2, food, pharmaceutical packaging industry
3, plastic heat sealing machine, high-speed sealing machine
4, hot melt machine
5, motors, high and low voltage electrical products, wire and cable insulation, battery manufacturing
6, sewing machine car, shovel Paper Machine
7, rubber-coated plastic rollers
8, other required high temperature, wear, corrosion resistance, anti-sticking place

Source:https://www.sukoptfe.com/ptfe-adhesive-high-temp-tape

PTFE Properties & PTFE Product Processing

PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m3. It maintains high strength, toughness and self-lubrication at low temperatures down to 5 K (−268.15 °C; −450.67 °F), and good flexibility at temperatures above 194 K (−79 °C; −110 °F). PTFE gains its properties from the aggregate effect of carbon-fluorine bonds, as do all fluorocarbons. The only chemicals known to affect these carbon-fluorine bonds are highly reactive metals like the alkali metals, and at higher temperatures also such metals as aluminium and magnesium, and fluorinating agents such as xenon difluoride and cobalt(III) fluoride.

The coefficient of friction of plastics is usually measured against polished steel. PTFE's coefficient of friction is 0.05 to 0.10, which is the third-lowest of any known solid material. PTFE's resistance to van der Waals forces means that it is the only known surface to which a gecko cannot stick.In fact, PTFE can be used to prevent insects climbing up surfaces painted with the material. PTFE is so slippery that insects cannot get a grip and tend to fall off.

Because of its chemical inertness, PTFE cannot be cross-linked like an elastomer. Therefore, it has no "memory" and is subject to creep. Because of its superior chemical and thermal properties, PTFE is often used as a gasket material within industries that require resistance to aggressive chemicals such as pharmaceuticals or chemical processing. However, because of the propensity to creep, the long-term performance of such seals is worse than for elastomers which exhibit zero, or near-zero, levels of creep.

Processing PTFE can be difficult and expensive, because the high melting temperature, 327 °C (621 °F), is above the initial decomposition temperature, 200 °C (392 °F). Even when melted, PTFE does not flow, but instead behaves as a gel due to the absence of crystalline phase and high melt viscosity.

Some PTFE parts are made by cold-moulding, a form of compression molding. Here, fine powdered PTFE is forced into a mould under high pressure . After a settling period, lasting from minutes to days, the mould is heated at 360 to 380 degrees Celsius , allowing the fine particles to fuse into a single mass.

Source:https://www.sukoptfe.com/ptfe-properties-ptfe-product-processing

PTFE Lined Bushing

The metal shell of a PTFE-lined bushing is not ideal for applications where water or caustic chemicals are present. In these types of applications, PTFE-lined bushings can rust, corrode, contaminate sensitive areas, and ultimately fail. Since plastic bushings are made solely of high-performance polymers, they offer both corrosion- and chemical-resistance and operate unaffected in those types of environments.

Steel backed PTFE lined bushings is a low cost, general purpose bearing product that provides excellent wear characteristics at high loads, speeds over a wide temperature range.

Designed to be self-lubricating bushings they are rolled bushings composed of a steel backing, for structural strength, with bonded layers of sintered bronze and PTFE for a maintenance free bearing surface.

The thin wall bearing design, excellent performance features, and low cost make this product one of the most popular self lubricating bearings in the industrial global marketplace.

PTFE-lined bushings weigh more than plastic bushings. When using a heavier bushing, no matter what material it is comprised of, more energy is required for the bushing to operate. This can be troublesome, especially in automotive, aerospace, recreational vehicle, and bicycle applications.

In contrast, plastic bushings are lightweight, which helps decrease fuel consumption and carbon dioxide output. The reduced weight can also help reduce carbon dioxide output, lower masses and subsequently, lower energy consumption.

Source:https://www.sukoptfe.com/ptfe-lined-bushing

PTFE Convoluted Hose

Standard seamless PTFE braided hoses are extremely lightweight, flexible and kink resistant. Convoluted Fluoropolymer PTFE hoses are less susceptible to cracking from stress or flexing than metal hoses or other fluoropolymer hoses when used within designated operating parameters. 

Features

• Seamless
• Open-pitched
• Self draining
• Excellent chemical compatibility
• Easy Cleaning
• Non Adhesive

Natural (non-conductive) or black (conductivestatic dissipating)
Braiding - Stainless Steel or Polypropylene
Protective/Identifying Sleeving - Fire Sleeve,Heat Shrink and Hose Guards
Available as tube assembly without braid

Expanded PTFE Sheet

Expanded PTFE Sheet is a high performance sheet gasket material made of multi-directionally expanded virgin PTFE. It is a soft, form-in-place gasket material that conforms to almost any sealing surface. It is capable of withstanding a wide range of pressure, temperature and chemical environments. Due to its highly fibrillated microstructure, it has excellent creep resistance compared with other PTFE products.

Expanded PTFE sheet is an extremely compressible material manufactured from 100% virgin PTFE. It is a food approved product and has excellent resistance to a wide range of chemicals, making it a popular sealing material in the food, drink and pharmaceutical industries.

Temperature: -240°C to +270°C (briefly up to +315°C)

Key Features: Very soft, extremely compressible and has excellent resistance to many chemicals. It can withstand compressive loads of over 40,000 psi without losing sealing capability. It is also unaffected by ozone, UV and corona and does not become brittle with age.

100% pure expanded PTFE sheet has a microporous fibrous structure unique mechanical properties. Widely used for sealing flange joints in pipelines as well as hydraulic and pneumatic systems. Pure, multidirectionally expanded PTFE, asbestos free, chemically resistant to fluids from 0 to 14 in the pH range.

Source:https://www.sukoptfe.com/blog-expanded-ptfe-sheet

Expanded PTFE Round Rope

PTFE is a very useful material because it has a unique combination of properties. PTFE is chemically inert, weatherable, excellent electrical insulation, high temperature resistance, a low coefficient of friction and non-adhesive properties.

Valve-spindle cord made of pure expanded PTFE, used as valve-spindle and flange seals in the chemical, pharmaceutical and food processing industries. Flanges are sealed quickly and securely by simple insertion of a ring of PTFE round cord (ends twisted). 

APPLICATION

Media：              Acids, alkalis, solvents, gases, etc.
Temperature：     -240 up to 260°C
Pressure：          100 bar
PH-Value：         0 - 14
Density：           Grade A/B: 0.70/0.80g/cm3      1.0~1.5 g/cm3 on request

Source:https://www.sukoptfe.com/expanded-ptfe-round-rope

PTFE Membrane

PTFE membrane filters are naturally hydrophobic with excellent chemical resistance, making them the ideal choice for sterile venting of gases*, non-aqueous solvents, acids, and aggressive fluids.

• Thin, highly porous membrane filter
• Behaves as an absolute retentive membrane
• Inert to most agressive solvents, including strong acids and bases
• Operating temperature range: -120~260°C
• Use to sterilize gasses, vent gas from aqueous solutions, or sterilize or clarify aggressive chemicals

PTFE membranes are hydrophobic in nature and are effective barriers to microbes and particulate matter. The high titer reduction and water intrusion pressures allow the membrane to repel high surface tension liquids while venting gases. PTFE membranes are used in a variety of healthcare applications such as vents on IV filters and spike vents, protecting equipment and sensors from fluids and contamination. Material characteristics include broad chemical compatibility, excellent particle retention, easy handling and sealing, and compatibility with various sterilizing methods, making it a versatile material for applications which require a hydrophobic barrier. Whether you need to keep fluid confined while letting air or gas pass,  or a sterile barrier, PTFE is the ideal membrane. 

The laminated membranes are thicker for easy handling. These filters are chemically and biologically inert, stable up to 260°C (500°F) and naturally hydrophobic; they are very useful for aerosol sampling, air venting, and gas filtration, especially in environments also containing water vapor. 

PTFE Carbon Rod

PTFE Carbon Filled has good chemical resistance to corrosive environments, has better creep and wear resistance compared to standard PTFE materials. These properties are improved with the addition of a carbon filler. This filler improves dimensional stability, raises the heat deflection temperature, improves creep resistance and the dynamic bearing performance. PTFE Carbon-Filled exhibits good initial wear and rubbing/sliding contact characteristics in both dry and wet/water applications. It is frequently used in piston rings to reduce cylinder wall wear by entrapping abrasive foreign particles in their relatively soft surfaces.

Carbon Filled PTFE was developed to provide a PTFE based material with improved mechanical strength.

PTFE on its own has excellent frictional properties, elasticity and wear resistance but relatively poor mechanical strength and tends to fail in high PV applications.

Carbon in itself is a brittle material with poor wear properties and mechanical strength. However with the two combined in Carbon Filled PTFE formulations, the resultant material has excellent mechanical and wear properties, retains the excellent frictional properties and is an excellent choice for seals and rings in dynamic and high pressure applications.

Carbon filled PTFE also provides good thermal conductivity, low permeability and is also electrically conductive making it a good choice for anti-static applications.

The most common carbon filled PTFE composition is 75% Virgin PTFE with 25% Carbon powder by weight.

When a filler ratio or type is unspecified, it is fair to assume this is the material. However it doesn’t tell the whole story. The type and percentage of carbon added to PTFE is a variable and is critical to material performance.

It can be as little as 0.2% and as much as 40%. Different percentages of carbon will 

APPLICATIONS : Piston rings;Pump housings;Valve seats;Gaskets;Roller coverings;Shaft bearings;Filter housings;Etching plates;Shaft seals;Slide runners;Chemical engineering;Conveyor technology;Pump and instrument construction;Electrical industry;Electronics;Laser technology;Fume purification;Pure water production;Cryogenics;Filter technology;Food & beverage;Medical technology.

Source:https://www.sukoptfe.com/ptfe-carbon-rod

PTFE O-Ring

Polytetrafluoroethylene (PTFE) is a high molecular weight polymer, one of the most versatile plastic materials known and useful for a large range of
products for applications excluded to other materials.

Polytetrafluoroethylene (PTFE for short) is a low friction synthetic rubber that has long been used for sealant applications for a variety of substances including gasses, fluids, and chemicals.

PTFE O-Ring Temperature Range

Although PTFE has lower mechanical properties compared to other plastics, the material’s chemical resistance in tandem with its ability to withstand a wide temperature range (-100oF to +400oF) allow PTFE o-rings to provide effective resistance to weathering as well as electrical and thermal insulation.

Because PTFE is such a dense material, it cannot be “melt processed” – it must be compressed and sintered to form useful shapes (like o-rings).

Top Applications

outdoors
lubricants
hydrocarbons
acids
alkalis
detergents
alcohol
ketones
steam
refrigerants

Mechanical Weaknesses

high vacuum seals
low compression vacuum sealing flanges
super-heated steam

Increase Mechanical Properties with Filled Grades
As shown in the table above, PTFE o-rings have some mechanical vulnerabilities compared to other plastics. If needed, these properties can be enhanced by adding fillers, such as:

Glass Fibers
Carbon
Graphite
Molybdenum disulphide
Bronze

Source:https://www.sukoptfe.com/PTFE-O-Ring

Filled PTFE Film

Skived, filled PTFE film coated one side, silicone adhesive Low coefficient of friction Outstanding abrasion resistance, which equates to 500-fold increase in wear resistance over standard PTFE Chemically inert Excellent high temperature resistance.

Skived, filled PTFE film coated one side, silicone adhesive;
Low coefficient of friction;
Outstanding abrasion resistance, which equates to 500-fold increase in wear resistance over standard PTFE;
Chemically inert;
Excellent high temperature resistance;

Features:This tape has a self-lubricating surface and conformable backing. The tape construction is stable, non-toxic and weather resistant.

Teflon PTFE Bush Suppliers and Manufacturers

We are the prominent manufacturer and supplier of PTFE Bush, these bushes are manufactured from a quality raw material so that our customers can enjoy the best quality of our products.

Benefits:
PTFE Sheet has a good withstand temperature.
Excellent Insulating properties
Molded PTFE sheet has the lowest coefficient of friction of all known solid materials
It has the best electrical properties of all plastics
PTFE Sheets exhibit astonishing chemical resistance
PTFE is a self-lubricating material that provides low friction coefficient and is ideally suited for the manufacture of corrosion- resistant gaskets & seals.

Usage:
PTFE Bush have wide industrial use in many industries such as chemicals, petrochemicals, fertilizers, food & Beverage, Pharmaceuticals, electricals, electronics, aero pneumatic, atomic energy etc.

We manufacture types of PTFE Molded & Machined products & components as per customer requirement, these part required in OEMs like Automobile Manufacturing, Valve Industry, Pump Industry, SPMS, Electronics & Electrical Industries,Defence, Railways. PTFE Products like PTFE Gaskets, PTFE Bellows, PTFE Rods & Bushes, Valve Seats, Hydraulic Slides, Chevron Packings & Seals and Compressor Rings & Bushes. 

PTFE guide belt wearing strips

PTFE guide belt advantages: 1. Good abrasion resistance, long lifetime.2. High structure strenght , certain degree elasticity.3. Without metallic contact of the sliding surfaces.4. Control the machine's vibration.5. Absorb the size's load.6. Enlarge the clearance of seal's extrusion.7. Simple groove design, and high load capacity.

Purpose: PTFE Guide Strip is an important component in a hydraulic cylinder where it stabilizes and reduces vertical movements of the rod. The arising side loads that the PTFE Guide Strip has to withstand can be significant, but the deformation of the Guide Strip is not permanent.
Material:  PTFE + Bronze
Density: 2.1 - 2.3 g/cm³
Working Temperature:  -180 ~ +250℃
Working Pressure: ≤63Mpa
Working Medium: Hydraulic Oil,Compressed Air

Advantages:

• *  High abrasion resistance.
• *  Low friction value.
• *  Stick-slip free running.
• *  Dimensionally stable and vibration absorbing.
• *  High resistance against extrusion.
• *  Low compression set.
• *  Easy installation.
• *  Excelent temperature resist bronze filled PTFE bearing guide strip

Uses of PTFE Industrial Coating

Most people have never heard of PTFE industrial coating, but when you mention Teflon, a look of understanding passes easily on their faces. PTFE (Polytetrafluoro Ethylene) is the technical name of the material, and it’s commonly sold under the Teflon brand name, which is manufactured by DuPont. Dr. Roy Plunkett, a researcher who worked at DuPont, is credited with developing PTFE industrial coating in the late 1930s.

Teflon is probably best-known for its role as the non-stick surface inside cookware. This is because PTFE industrial coating is one of the most slippery materials that’s in existence today. In addition to being slippery, the material also brings a number of other features to the table, offering high temperature resistance, little reaction to most chemicals, and reduced stress cracking and corrosion. These features make Teflon perfect for numerous applications, including:

Cookware – As already mentioned, the slippery surface created by Teflon makes it perfect for cookware. Many brands offer lines of cookware that are coated with PTFE in order to prevent food from sticking to the pots and pans. This reduces the need for cooking oil because these pots and pans are naturally non-stick.

Nail polish – That smooth surface that doesn’t crack is often achieved through the use of PTFE industrial coating.

Hair styling tools – Hair straighteners and curling irons are often coated with Teflon because of the high temperatures emitted by these tools.

Windshield wiper blades – There are numerous applications for PTFE industrial coating within the automotive industry as well. The blades of windshield wipers are the most notable because the smooth surface enables them to glide smoothly across the windshield.

Fabric and carpet protection – Stains are less likely to stick to carpets or fabrics that have been treated with PTFE industrial.

Chemical and steel industries – Hoses and other machine parts commonly handle some highly corrosive substances that sometimes are transferred at extremely high temperatures. PTFE industrial coating is one of the best materials to handle this type of use because it addresses all of the problems that are otherwise caused by working with chemicals or steel. Every type of hose will deteriorate over time, but those that are made of PTFE industrial coating will do so much more slowly than those made of other materials because of the many features of the material.

Source:https://www.sukoptfe.com/uses-of-ptfe-industrial-coating

What is PTFE used for?

PTFE know as Polytetrafluoroethylene is used in the plumbing industry but is also used outside the plumbing industry. The plumber would use Polytetrafluoroethylene mostly on the male thread of a radiator valve going into the radiator. Emergency plumbers normally use PTFE on emergencies when it comes to old fitting that will not tighten up more than they should do. Some people get a little mixed up when using Polytetrafluoroethylene on fitting and must be aware that any PTFE should go on the olive rather than the thread as the thread will only make this harder to complete the work and more than likely cause a leak and resulting in the customer searching around for emergency plumbers.

PTFE is used extensively in many different industries:

Petrochemical and chemical processing: PTFE is the material of choice for gaskets, vessel linings, pump interiors, washers, rings, seals, spacers, dip tubes and well-drilling components because it is corrosion resistant and chemically inert; it is unaffected by virtually all acids and caustics and functions in environments to 500 degrees F..

Electrical applications: PTFE is one of the best insulators known. In thin sections, it will insulate to 500 volts per mil. There are grades of PTFE which have even greater dielectric strength. It is frequently used in wire and cable wrap, and to separate conductive surfaces in capacitors. Thick walled close-tolerance extruded tubing is the PTFE shape of choice where machining or drilling long lengths to close tolerances is impossible. Multi-hole tubing can be extruded. PTFE can be machined into standoff insulators, and many different types of high voltage encapsulation devices for electrical components.

Semi-Conductor Industry: PTFE is inert, and its operating temperature range is from minus 350 degrees Fahrenheit to 550 degrees Fahrenheit. When made to ultra pure standards it is the material of choice for various items used in chip manufacturing, including encapsulation devices for quartz heaters, and the like.

Food, Beverage and Pharmaceutical industries: Virgin PTFE is approved by the Food and Drug Administration for use in the food, beverage, cosmetics and pharmaceutical industries. Thin Film and sheets make an inert, no-toxic slide surface without microscopic depressions where microbes can grow. Conveyancing components - profiles, guide rails and slides - can withstand high temperatures inside baking and drying ovens and other heated segments of the food, cosmetics or pharmaceuticals manufacturing processes.

Laboratory applications: PTFE piping, tubing and vessels are used in various laboratory ware because of their chemical resistance, and inertness. No contaminants adhere to the surface.

Bearing pads: Glass filled PTFE can be cut or stamped into bearing pads, and will resist all weather-related degradation while remaining an inert interface between disparate construction materials, like steel and concrete.

PTFE Compounds: Various fillers can be blended with the PTFE base resin to enhance certain properties, e.g. glass fiber, glass bead, carbon, graphite, molybdenum disulfide, bronze, etc.

PTFE does not melt; it cannot be molded into complex shapes, but must be machined. PTFE is easily machined using standard mechanical woodworking and stamping equipment and tooling. Most shapes are sold slightly oversized for easy trimming and machining to exact sizes

Source:https://www.sukoptfe.com/what-is-ptfe-used-for