#Rubber Banbury Mixer

[custommoldrubber]

Silicone Mold Rubber Singapore on a Budget: Our Best Money-Saving

Custom rubber compounding is the process of creating a unique rubber compound that is tailored to meet specific performance and processing requirements. This process involves blending various raw materials, such as rubber polymers, fillers, curing agents, and other additives, in precise proportions to achieve the desired properties.

The custom rubber compounding process begins with a thorough understanding of the end-use application and the performance requirements of the rubber product. This information is used to select the appropriate raw materials and determine the best compounding process for achieving the desired properties.

The raw materials used in custom rubber compounding can vary widely depending on the application. Rubber polymers, for example, can be chosen based on factors such as strength, durability, and resistance to chemicals and temperature extremes. Fillers, such as carbon black or silica, may be added to improve the strength or abrasion resistance of the compound. Curing agents, such as sulfur or peroxide, may be included to enable the rubber to harden and maintain its shape.

After the raw materials are selected, they are blended together in a mixing process that can take place in a variety of equipment, such as a Banbury mixer or a two-roll mill. The mixing process must be carefully controlled to ensure that the materials are well-distributed and that the desired properties are achieved.

Once the mixing process is complete, the custom rubber compound is tested to ensure that it meets the required specifications. These tests may include measurements of properties such as tensile strength, elongation, hardness, and compression set.

Custom rubber compounding offers several advantages over using off-the-shelf rubber compounds. By tailoring the compound to the specific application, manufacturers can achieve improved performance, longer life, and better processing characteristics. Additionally, custom compounding can offer cost savings by reducing waste and improving product consistency.

If you are in need of custom rubber compounds, it is important to work with a reputable manufacturer who has experience in the industry and can provide you with high-quality products that meet your specific requirements. Look for a manufacturer who has a proven track record of delivering custom compounds on time and within budget, and who uses state-of-the-art equipment and testing procedures to ensure the quality of their products.

Custom-molded rubber products are used in a wide range of industries, including automotive, aerospace, and construction. These products are designed to meet specific requirements and are manufactured using a variety of processes.

One of the most common processes used for custom-molded rubber products is compression molding. This process involves placing a pre-measured amount of raw rubber material into a mold cavity. The mold is then closed and heated, which causes the rubber to compress and take the shape of the mold. Once the rubber has cured, the mold is opened and the finished product is removed.

Another process used for custom-molded rubber products is injection molding. This process is similar to compression molding but involves injecting the raw rubber material into the mold cavity rather than placing it in the cavity beforehand. This process is typically used for more complex shapes or for larger production runs.

Custom-molded rubber products can also be manufactured using transfer molding. This process involves heating the raw rubber material in a separate chamber and then transferring it to the mold cavity using a plunger. This process is typically used for products that require a high level of precision or for products that require a specific color or texture.

Regardless of the manufacturing process used, custom-molded rubber products offer a number of advantages over other materials. Rubber is durable, flexible, and can withstand extreme temperatures and harsh environments. It also has excellent electrical insulation properties and can be formulated to resist chemicals and other substances.

If you are in need of custom-molded rubber products, it is important to work with a reputable manufacturer who can provide you with high-quality products that meet your specific requirements. Look for a manufacturer who has experience working with the type of rubber you need and who has a proven track record of delivering products on time and within budget.

Plastic molded rubber parts are used in a variety of applications in numerous industries. These parts are made by injecting plastic into a mold cavity that is designed to produce rubber-like parts with specific shapes and features. The process of plastic molded rubber parts manufacturing involves several steps, including design, tooling, material selection, and production.

Design: The design of plastic molded rubber parts is critical to ensuring that the final product meets the requirements of the application. Engineers and designers work together to create a 3D model of the part that includes all necessary features, such as holes, threads, and undercuts.

Tooling: Once the design is complete, the tooling for the mold is created. Tooling can be made from various materials, including steel, aluminum, and even 3D-printed materials. The mold is designed to be able to withstand the high pressures and temperatures required for the plastic injection molding process.

Material selection: The selection of the right rubber material is critical to achieving the desired properties of the plastic molded rubber part. Different rubber materials have different properties, such as hardness, flexibility, and chemical resistance. The material is chosen based on the specific requirements of the application.

Production: During production, the plastic is melted and injected into the mold cavity. The plastic is then cooled, and the mold is opened to reveal the finished part. The part is then inspected to ensure that it meets all quality standards.

Plastic molded rubber parts offer several advantages over other materials, including their ability to be molded into complex shapes, their durability, and their resistance to chemicals and extreme temperatures. These parts are used in a wide range of applications, such as automotive, aerospace, and medical devices.

Choosing the right manufacturer for plastic molded rubber parts is crucial to achieving high-quality products. Look for a manufacturer with experience in the industry and a proven track record of delivering parts on time and within budget. Additionally, it is important to choose a manufacturer that uses high-quality materials and has state-of-the-art equipment to ensure that the parts meet your specific requirements.

[cfinemahinery-blog]

Continuous mixer processor Compounding Extruder Machine

Best choice for masterbatch process. There are two zones to work continuously, one with twin-screw for mixing and the another with single-screw for extruding. Applications: Rubber, carbon black masterbatch, calcium powder filling masterbatch, talc powder filling masterbatch, functional masterbatch, high concentration color masterbatch, flame retardant masterbatch, cable material, high filling material, etc. For more and more information,please feel free to contact! Read the full article

[heatsensors]

Banbury Thermocouples

Banbury thermocouples find extensive use in industries focused on producing rubber products and tyres. The Banbury mixer mixes compounds that eventually turn into tyres and rubber products. The mixing happens at specific temperatures and the environment is pretty hazardous. It's the Banbury thermocouples that monitor the temperature and ensure the mixture in the mixer has achieved the right temperature while being mixed continuously. The Banbury thermocouples are designed specifically to withstand the harshness of the hazardous environment created within the Banbury mixer.

Looking to purchase high quality Banbury Thermocouples for your industrial application?

Call Heatcon on +91 9844233244 to start a discussion and place your order.

Heatcon Sensors have been manufacturing durable, robust, and long-lasting Banbury Thermocouples for more than 30 years.

[gemorionmachinerypvtltd]

Chiller Application

Gem ORION is a customer-pushed chiller producer in India and has given you flexible cooling solutions for a giant range of industries. Our commercial enterprise chillers are designed and produced to correctly lift out at the pinnacle performance. We have ensured that our chillers will greater raise out at an optimized overall performance level.

We supply superior commercial enterprise chillers that top notch matches your unique requirements in case you look out for custom-constructed enterprise coolers manufacturers. We have designed and produced strength-green air-cooled in addition to water-cooled chillers in unique for manufacturing processes.

Fiber Laser Diode laser oscillator and optical buildings cooling.

MRI Helium compressor cooling and gradient coil cooling.

Photo lithography Equipment ± 0.1 ℃ cool water supplies for publicity diploma (cool plate).

High-Frequency Induction Heating Heating coil cooling and immoderate frequency strength supply cooling.

Plasma Welder Cooling for electricity transport and welding torch.

ICP Analysis device Improved cooling overall performance for inspection answers.

Concentrating Equipment Evaporator Cooling.

Analysis device Analysis diploma cooling.

X-Ray Inspection Equipment Light furnish and LED chip cooling.

YAG Welding Machine Power supply and electrode cooling.

UV Laser Engraving Machine Analysis diploma cooling.

Molding Machines Mold and hopper cooling.

Printing Equipment UV lamp cooling and ink drying cooling degree cooling, also, to control over ink temperature.

Sheet Printing Machine Individual roller cooling.

Milling Equipment Jacket Cooling.

Mixer Jacket Cooling.

Spot Welding Machine Electrode and power supply cooling.

Arc Welding Machine Power supply and electrode Cooling.

Vacuum Vapor Deposition Equipment Chamber cooling.

Packing Machinery Cooling after warmness sealing.

Laboratory Furnace/Kiln Furnace/Kiln cooling.

What Can A Chiller Be Used For? As you perchance can think about chillers are alternatively necessary with inner the commercial enterprise world whereby there are thousands of heaps of machines and tools that generate severa warmness. If these machines and gear are too ultimate at any time at all, they choose to be cooled. This is whereby chillers are reachable in and play the principal feature in cooling these ever-purposeful machines and equipment.

A chiller might also be used to kick back any gadget or method that operates at 60° F or lower. A cooling tower might also be used to sit back any machine or method that operates at 85° F or higher. Some of the greater, now not uncommon area packages are listed below.

Industrial Applications for Plastic Industry Medical chillers Laser chillers Food & beverage chillers Rubber corporation chillers HVAC Plastics In the plastics enterprise, a chilling system cools the new plastic this is injected, blown, extruded, or stamped. A chilling system additionally can settle down the machine this is used to create plastic merchandise (hydraulics of the molding system, equipment container, and barrel of the extruder) that saves on energy and on the harm in addition to tear of the machine itself. Chillers are really useful in special plastic agency packages that encompass Injection Molding, in which warmness is continuously produced at some factor in the technique. It is quintessential to settle down the machines so that they shall be purposeful and inexperienced all the time.

Printing

In the printing enterprise, a chiller now no longer most successfully eliminates the warmness generated through the friction of the printing rollers, however, cools down the paper after it comes out of the ink drying ovens with inner the technique. For the printing enterprise, the usage of chillers must deliver about capability fee economic financial savings as temperature regulation in presses in addition to rollers is possible. The chillers aid in bringing down stretching and bleeding.

Laser In the laser lowering enterprise, slight projection enterprise, etc. a chilling machine is used to settle down the lasers and electricity supplies. Time and charge saving are the two necessary advantages with inner the laser decreasing enterprise, while inexperienced chillers are used.

Rubber In the rubber company to relax the multi-zone water temperature manipulate devices of the rubber extruder barrel, cool the rubber mill, calendars, and Banbury mixers. Considerable energy can be saved with the introduction of excessive-performance chillers to rubber merchandise enterprise.

Beverage In the beverage enterprise, a chiller eliminates the warmness gained from the approach at some factor in mixing, cooking, or after pasteurizing the product. Cooling down machines enable beverage organisation to achieve inexperienced in addition to fast manufacturing processes.

Medical In the scientific enterprise, the effortless functioning of gear may additionally be very essential. If you function an excessive-tech system for magnetic resonance imaging (MRI), scanning, blood cooling, and laboratory testing, you can also choose a cooling machine to dispose of all the warmness generated.

HVAC With cooling expenses accounting for 30% to 50% of your regularly occurring electricity costs and developing fast, and the drawing near part out of chlorofluorocarbon (CFC) and Hydro Chloro Fluoro Carbon (HCFC) refrigerants, there may also be a hastily creating prefer to replace massive enterprise aircon and refrigeration constructions with a modular chilling.

[pushingmorebuttons]

how we made custom rubber extrusions for clients

Custom rubber extrusions are made to be small size flexible strips or large size straight bars/profiles,often made by EPDM,silicone rubber etc, the finished products series are

weatherstrip seals for vehicle,door and window(sunlight,rainstorm, cold,wind,ozone,UV etc)

edge trims for guard protection or rough parts decoration(e.g.sheet metal)

sponge/foam u channel rubber seal extrusions for anti impact/vibration/collision/hard-wearing

industrial use rubber tubing,rubber strip/sheet,extruded large profiles

custom rubber extrusions manucturing workflow chart

1.Raw material preparation–compounding

Mix all raw materials to a certain proportion except ultra accelerator and vulcanizator,for the first stage mixing:banbury internal mixing. Most of the rubber extrusions requires two stage mixing/plastication:

banbury internal mixing

open mixing

2.Banbury internal mixing

Mix uniformly the crude rubber with the compounding ingredients e.g. vulcanizing agent,oil-softener,fortifier etc,and stash it for 8 hours or so,to make it

Recover the fatigue

release mechanical stress

Reduce shrinkage

Compounding diffusing uniformly

Bound rubber reinforcement between carbon black and rubber with cross-linking matrix structure

first stage rubber mixing machine–banbury mix machine

Notes:

One of the ingredients Kerosene is to change the plasticity and flexibility to be more machinable;

The largest 3 synthetic rubber producing country are: USA/Japan/Korea,especially for EPDM rubber;

Rubber straining machine can effectively wipe off the impurities of the compounding rubber

EPDM rubber straining machine to wipe off impurities

Open Mixing

Compounding with accelerant,prepare the material to be next process-calendaring molding

second stage open mixing-epdm rubber mixer machine

Extruding

The exhaust type pin cold feed extruder is the most popular extruding machine,or thread cold feed extruder is another option,for general custom rubber extrusions. Extruding Die design moulds to determine the cross section shapes,which makes extruded rubber items to be a continuous bar with constant lateral section shape.

extrusion die moulds and its cross section shapes

Vulcanization

Closely followed by vulcanization(or sulfidation),via a series of curing equipment—micro wave vulcanister,hot air culcanister,hauling machine and cooling equipment.

rubber extrusions manufacturing vulcanization equipment

rubber extrusions assembly line

Packaging (cutting or coiling)

After cooling then make dry,the rubber extrusions item can be cut to be a given length or packed in a roll. Small size extruded rubber items is flexible,we often call it “rubber strips”(including small diameter rubber tubing),it can be curled in a roll,then every 200~300meters per carton;

small size rubber extrusions-flexible rubber strip packed in rolls

Large size extruded rubber items are not easy to bend,it is more like straight bars,we often call them “rubber profiles”,rubber extrusions profiles are usually cut into centain length bars,such as anti-collision rubber profiles;

large size rubber extrusions-straight bar profiles cut into certain length

7.Or deep processing as per clients’ special requirement below:

Hole punching

Butt jointing

Angle Adjancent

Flocking/Pile coating

Adhesive Backing

rubber extrusions flocking equipment-pile coating machine

angle acjacent moulds for extruded rubber seals

8.Required Properties for Automotive rubber extrusions

Working conditions of automotive rubber seals are required strictly conditional especially for weathering aspect,the service life of the finished product are up to the performance index of rubber extrusion items. Important parameters of automotive rubber extrusions:

Temperature range: typical value: -35℃ to 70℃

Hardness

Tensile strength: typical value >=7Mpa

Enlongation at break   Typical value 250~350

Compression set(compression load)

Anti-ozone aging

Atmospheric aging

Resistant to paint(coating properties)

Low-temperature properties (low-temp elasticity)    typical value:keep resilient at -35℃

Installation performance(insert/pull out force)

Flocking resistance

Cohesiveness

Extrusion force for edge trims

Brittleness temperature    typical value -35℃

The above properties and its typical value applies to custom rubber extrusions for common projects of industrial use rubber extrusions, such as u channel rubber edge trims,epdm rubber tubing,house door window rubber strip seals,etc

[thedunwells]

how we made custom rubber extrusions for clients

Custom rubber extrusions are made to be small size flexible strips or large size straight bars/profiles,often made by EPDM,silicone rubber etc, the finished products series are

weatherstrip seals for vehicle,door and window(sunlight,rainstorm, cold,wind,ozone,UV etc)

edge trims for guard protection or rough parts decoration(e.g.sheet metal)

sponge/foam rubber edging for sheet metal extrusions for anti impact/vibration/collision/hard-wearing

industrial use rubber tubing,rubber strip/sheet,extruded large profiles

custom rubber extrusions manucturing workflow chart

1.Raw material preparation–compounding

Mix all raw materials to a certain proportion except ultra accelerator and vulcanizator,for the first stage mixing:banbury internal mixing. Most of the rubber extrusions requires two stage mixing/plastication:

banbury internal mixing

open mixing

2.Banbury internal mixing

Mix uniformly the crude rubber with the compounding ingredients e.g. vulcanizing agent,oil-softener,fortifier etc,and stash it for 8 hours or so,to make it

Recover the fatigue

release mechanical stress

Reduce shrinkage

Compounding diffusing uniformly

Bound rubber reinforcement between carbon black and rubber with cross-linking matrix structure

first stage rubber mixing machine–banbury mix machine

Notes:

One of the ingredients Kerosene is to change the plasticity and flexibility to be more machinable;

The largest 3 synthetic rubber producing country are: USA/Japan/Korea,especially for EPDM rubber;

Rubber straining machine can effectively wipe off the impurities of the compounding rubber

EPDM rubber straining machine to wipe off impurities

Open Mixing

Compounding with accelerant,prepare the material to be next process-calendaring molding

second stage open mixing-epdm rubber mixer machine

Extruding

The exhaust type pin cold feed extruder is the most popular extruding machine,or thread cold feed extruder is another option,for general custom rubber extrusions. Extruding Die design moulds to determine the cross section shapes,which makes extruded rubber items to be a continuous bar with constant lateral section shape.

extrusion die moulds and its cross section shapes

Vulcanization

Closely followed by vulcanization(or sulfidation),via a series of curing equipment—micro wave vulcanister,hot air culcanister,hauling machine and cooling equipment.

rubber extrusions manufacturing vulcanization equipment

rubber extrusions assembly line

Packaging (cutting or coiling)

After cooling then make dry,the rubber extrusions item can be cut to be a given length or packed in a roll. Small size extruded rubber items is flexible,we often call it “rubber strips”(including small diameter rubber tubing),it can be curled in a roll,then every 200~300meters per carton;

small size rubber extrusions-flexible rubber strip packed in rolls

Large size extruded rubber items are not easy to bend,it is more like straight bars,we often call them “rubber profiles”,rubber extrusions profiles are usually cut into centain length bars,such as anti-collision rubber profiles;

large size rubber extrusions-straight bar profiles cut into certain length

7.Or deep processing as per clients’ special requirement below:

Hole punching

Butt jointing

Angle Adjancent

Flocking/Pile coating

Adhesive Backing

rubber extrusions flocking equipment-pile coating machine

angle acjacent moulds for extruded rubber seals

8.Required Properties for Automotive rubber extrusions

Working conditions of automotive rubber seals are required strictly conditional especially for weathering aspect,the service life of the finished product are up to the performance index of rubber extrusion items. Important parameters of automotive rubber extrusions:

Temperature range: typical value: -35℃ to 70℃

Hardness

Tensile strength: typical value >=7Mpa

Enlongation at break   Typical value 250~350

Compression set(compression load)

Anti-ozone aging

Atmospheric aging

Resistant to paint(coating properties)

Low-temperature properties (low-temp elasticity)    typical value:keep resilient at -35℃

Installation performance(insert/pull out force)

Flocking resistance

Cohesiveness

Extrusion force for edge trims

Brittleness temperature    typical value -35℃

The above properties and its typical value applies to custom rubber extrusions for common projects of industrial use rubber extrusions, such as u channel rubber edge trims,epdm rubber tubing,house door window rubber strip seals,etc

[thefairybones-blog1]

how we made custom rubber extrusions for clients

Custom rubber extrusions are made to be small size flexible strips or large size straight bars/profiles,often made by EPDM,silicone rubber etc, the finished products series are

weatherstrip seals for vehicle,door and window(sunlight,rainstorm, cold,wind,ozone,UV etc)

edge trims for guard protection or rough parts decoration(e.g.sheet metal)

sponge/foam silicone rubber extrusions extrusions for anti impact/vibration/collision/hard-wearing

industrial use rubber tubing,rubber strip/sheet,extruded large profiles

custom rubber extrusions manucturing workflow chart

1.Raw material preparation–compounding

Mix all raw materials to a certain proportion except ultra accelerator and vulcanizator,for the first stage mixing:banbury internal mixing. Most of the rubber extrusions requires two stage mixing/plastication:

banbury internal mixing

open mixing

2.Banbury internal mixing

Mix uniformly the crude rubber with the compounding ingredients e.g. vulcanizing agent,oil-softener,fortifier etc,and stash it for 8 hours or so,to make it

Recover the fatigue

release mechanical stress

Reduce shrinkage

Compounding diffusing uniformly

Bound rubber reinforcement between carbon black and rubber with cross-linking matrix structure

first stage rubber mixing machine–banbury mix machine

Notes:

One of the ingredients Kerosene is to change the plasticity and flexibility to be more machinable;

The largest 3 synthetic rubber producing country are: USA/Japan/Korea,especially for EPDM rubber;

Rubber straining machine can effectively wipe off the impurities of the compounding rubber

EPDM rubber straining machine to wipe off impurities

Open Mixing

Compounding with accelerant,prepare the material to be next process-calendaring molding

second stage open mixing-epdm rubber mixer machine

Extruding

The exhaust type pin cold feed extruder is the most popular extruding machine,or thread cold feed extruder is another option,for general custom rubber extrusions. Extruding Die design moulds to determine the cross section shapes,which makes extruded rubber items to be a continuous bar with constant lateral section shape.

extrusion die moulds and its cross section shapes

Vulcanization

Closely followed by vulcanization(or sulfidation),via a series of curing equipment—micro wave vulcanister,hot air culcanister,hauling machine and cooling equipment.

rubber extrusions manufacturing vulcanization equipment

rubber extrusions assembly line

Packaging (cutting or coiling)

After cooling then make dry,the rubber extrusions item can be cut to be a given length or packed in a roll. Small size extruded rubber items is flexible,we often call it “rubber strips”(including small diameter rubber tubing),it can be curled in a roll,then every 200~300meters per carton;

small size rubber extrusions-flexible rubber strip packed in rolls

Large size extruded rubber items are not easy to bend,it is more like straight bars,we often call them “rubber profiles”,rubber extrusions profiles are usually cut into centain length bars,such as anti-collision rubber profiles;

large size rubber extrusions-straight bar profiles cut into certain length

7.Or deep processing as per clients’ special requirement below:

Hole punching

Butt jointing

Angle Adjancent

Flocking/Pile coating

Adhesive Backing

rubber extrusions flocking equipment-pile coating machine

angle acjacent moulds for extruded rubber seals

8.Required Properties for Automotive rubber extrusions

Working conditions of automotive rubber seals are required strictly conditional especially for weathering aspect,the service life of the finished product are up to the performance index of rubber extrusion items. Important parameters of automotive rubber extrusions:

Temperature range: typical value: -35℃ to 70℃

Hardness

Tensile strength: typical value >=7Mpa

Enlongation at break   Typical value 250~350

Compression set(compression load)

Anti-ozone aging

Atmospheric aging

Resistant to paint(coating properties)

Low-temperature properties (low-temp elasticity)    typical value:keep resilient at -35℃

Installation performance(insert/pull out force)

Flocking resistance

Cohesiveness

Extrusion force for edge trims

Brittleness temperature    typical value -35℃

The above properties and its typical value applies to custom rubber extrusions for common projects of industrial use rubber extrusions, such as u channel rubber edge trims,epdm rubber tubing,house door window rubber strip seals,etc

[outlettomsstoreonline]

how we made custom rubber extrusions for clients

Custom rubber extrusions are made to be small size flexible strips or large size straight bars/profiles,often made by EPDM,silicone rubber etc, the finished products series are

weatherstrip seals for vehicle,door and window(sunlight,rainstorm, cold,wind,ozone,UV etc)

edge trims for guard protection or rough parts decoration(e.g.sheet metal)

sponge/foam rubber extrusions for anti impact/vibration/collision/hard-wearing

industrial use rubber tubing,rubber extrusions manufacturers  strip/sheet,extruded large profiles

custom rubber extrusions manucturing workflow chart

1.Raw material preparation–compounding

Mix all raw materials to a certain proportion except ultra accelerator and vulcanizator,for the first stage mixing:banbury internal mixing. Most of the rubber extrusions requires two stage mixing/plastication:

banbury internal mixing

open mixing

2.Banbury internal mixing

Mix uniformly the crude rubber with the compounding ingredients e.g. vulcanizing agent,oil-softener,fortifier etc,and stash it for 8 hours or so,to make it

Recover the fatigue

release mechanical stress

Reduce shrinkage

Compounding diffusing uniformly

Bound rubber reinforcement between carbon black and rubber with cross-linking matrix structure

first stage rubber mixing machine–banbury mix machine

Notes:

One of the ingredients Kerosene is to change the plasticity and flexibility to be more machinable;

The largest 3 synthetic rubber producing country are: USA/Japan/Korea,especially for EPDM rubber;

Rubber straining machine can effectively wipe off the impurities of the compounding rubber

EPDM rubber straining machine to wipe off impurities

Open Mixing

Compounding with accelerant,prepare the material to be next process-calendaring molding

second stage open mixing-epdm rubber mixer machine

Extruding

The exhaust type pin cold feed extruder is the most popular extruding machine,or thread cold feed extruder is another option,for general custom rubber extrusions. Extruding Die design moulds to determine the cross section shapes,which makes extruded rubber items to be a continuous bar with constant lateral section shape.

extrusion die moulds and its cross section shapes

Vulcanization

Closely followed by vulcanization(or sulfidation),via a series of curing equipment—micro wave vulcanister,hot air culcanister,hauling machine and cooling equipment.

rubber extrusions manufacturing vulcanization equipment

rubber extrusions assembly line

Packaging (cutting or coiling)

After cooling then make dry,the rubber extrusions item can be cut to be a given length or packed in a roll. Small size extruded rubber items is flexible,we often call it “rubber strips”(including small diameter rubber tubing),it can be curled in a roll,then every 200~300meters per carton;

small size rubber extrusions-flexible rubber strip packed in rolls

Large size extruded rubber items are not easy to bend,it is more like straight bars,we often call them “rubber profiles”,rubber extrusions profiles are usually cut into centain length bars,such as anti-collision rubber profiles;

large size rubber extrusions-straight bar profiles cut into certain length

7.Or deep processing as per clients’ special requirement below:

Hole punching

Butt jointing

Angle Adjancent

Flocking/Pile coating

Adhesive Backing

rubber extrusions flocking equipment-pile coating machine

angle acjacent moulds for extruded rubber seals

8.Required Properties for Automotive rubber extrusions

Working conditions of automotive rubber seals are required strictly conditional especially for weathering aspect,the service life of the finished product are up to the performance index of rubber extrusion items. Important parameters of automotive rubber extrusions:

Temperature range: typical value: -35℃ to 70℃

Hardness

Tensile strength: typical value >=7Mpa

Enlongation at break   Typical value 250~350

Compression set(compression load)

Anti-ozone aging

Atmospheric aging

Resistant to paint(coating properties)

Low-temperature properties (low-temp elasticity)    typical value:keep resilient at -35℃

Installation performance(insert/pull out force)

Flocking resistance

Cohesiveness

Extrusion force for edge trims

Brittleness temperature    typical value -35℃

The above properties and its typical value applies to custom rubber extrusions for common projects of industrial use rubber extrusions, such as u channel rubber edge trims,epdm rubber tubing,house door window rubber strip seals,etc

[top-of-stairs-baby-gate]

how we made custom rubber extrusions for clients

Custom rubber extrusions are made to be small size flexible strips or large size straight bars/profiles,often made by EPDM,silicone rubber etc, the finished products series are

weatherstrip seals for vehicle,door and window(sunlight,rainstorm, cold,wind,ozone,UV etc)

edge trims for guard protection or rough parts decoration(e.g.sheet metal)

sponge/foam rubber extrusions for anti impact/vibration/collision/hard-wearing

industrial use rubber tubing,extruded rubber gasket  strip/sheet,extruded large profiles

custom rubber extrusions manucturing workflow chart

1.Raw material preparation–compounding

Mix all raw materials to a certain proportion except ultra accelerator and vulcanizator,for the first stage mixing:banbury internal mixing. Most of the rubber extrusions requires two stage mixing/plastication:

banbury internal mixing

open mixing

2.Banbury internal mixing

Mix uniformly the crude rubber with the compounding ingredients e.g. vulcanizing agent,oil-softener,fortifier etc,and stash it for 8 hours or so,to make it

Recover the fatigue

release mechanical stress

Reduce shrinkage

Compounding diffusing uniformly

Bound rubber reinforcement between carbon black and rubber with cross-linking matrix structure

first stage rubber mixing machine–banbury mix machine

Notes:

One of the ingredients Kerosene is to change the plasticity and flexibility to be more machinable;

The largest 3 synthetic rubber producing country are: USA/Japan/Korea,especially for EPDM rubber;

Rubber straining machine can effectively wipe off the impurities of the compounding rubber

EPDM rubber straining machine to wipe off impurities

Open Mixing

Compounding with accelerant,prepare the material to be next process-calendaring molding

second stage open mixing-epdm rubber mixer machine

Extruding

The exhaust type pin cold feed extruder is the most popular extruding machine,or thread cold feed extruder is another option,for general custom rubber extrusions. Extruding Die design moulds to determine the cross section shapes,which makes extruded rubber items to be a continuous bar with constant lateral section shape.

extrusion die moulds and its cross section shapes

Vulcanization

Closely followed by vulcanization(or sulfidation),via a series of curing equipment—micro wave vulcanister,hot air culcanister,hauling machine and cooling equipment.

rubber extrusions manufacturing vulcanization equipment

rubber extrusions assembly line

Packaging (cutting or coiling)

After cooling then make dry,the rubber extrusions item can be cut to be a given length or packed in a roll. Small size extruded rubber items is flexible,we often call it “rubber strips”(including small diameter rubber tubing),it can be curled in a roll,then every 200~300meters per carton;

small size rubber extrusions-flexible rubber strip packed in rolls

Large size extruded rubber items are not easy to bend,it is more like straight bars,we often call them “rubber profiles”,rubber extrusions profiles are usually cut into centain length bars,such as anti-collision rubber profiles;

large size rubber extrusions-straight bar profiles cut into certain length

7.Or deep processing as per clients’ special requirement below:

Hole punching

Butt jointing

Angle Adjancent

Flocking/Pile coating

Adhesive Backing

rubber extrusions flocking equipment-pile coating machine

angle acjacent moulds for extruded rubber seals

8.Required Properties for Automotive rubber extrusions

Working conditions of automotive rubber seals are required strictly conditional especially for weathering aspect,the service life of the finished product are up to the performance index of rubber extrusion items. Important parameters of automotive rubber extrusions:

Temperature range: typical value: -35℃ to 70℃

Hardness

Tensile strength: typical value >=7Mpa

Enlongation at break   Typical value 250~350

Compression set(compression load)

Anti-ozone aging

Atmospheric aging

Resistant to paint(coating properties)

Low-temperature properties (low-temp elasticity)    typical value:keep resilient at -35℃

Installation performance(insert/pull out force)

Flocking resistance

Cohesiveness

Extrusion force for edge trims

Brittleness temperature    typical value -35℃

The above properties and its typical value applies to custom rubber extrusions for common projects of industrial use rubber extrusions, such as u channel rubber edge trims,epdm rubber tubing,house door window rubber strip seals,etc