Abstract

We promise that our factory use 100% new material Which Meet directive of RoHS and also could provide Custom Compounding such as anti-fire,food-grade, etc upon request.

RubberMaterial

EPDMRubber

We promise that our factory use 100% new material Which Meet directive of RoHS and also could provide Custom Compounding such as anti-fire,food-grade, etc upon request.

CR Rubber

Temperature range:-30to+90℃,hot water not recommended.

Advantages:Good the rmal resistance as well as to aging,weather,ozone,low flammability,high resistance to alternating bending,medium resistance against oil (higher than NR,lower than nitrile rubber;good mechanical properties and elasticity . But not as good as for NR;small deformation remaining.

Disadvantages:According to type of CR-Type,possibility of cry stalization due to lastingcold.

NBR

Temperature range:-20 to+100℃ with dry conditions,hardens with hotair,with oils Up to+120℃,with water up to+80℃.

Advantages:High oil,petrol and thermal sistance,good mechanical toughness,low remaining deformation under pressure.

Disadvantages:Very low weather and ozone resistance,lowe lasticity

Natural Rubber(NR)

Temperature range:-40to+70℃.

Advantages:Good elasticity and mechanical properties(tear and abrasion resistance notchtoughness,elasticity),no remaining deformation after strain,high resistance to alternating bending.

Disadvantages:Medium to low resistance to oil,weather and ozone as well as thermal resistance,flammable.

Silicone Rubber

Temperaturerange:-50 to+230℃

Advantages:Extreme temperature range and low temperature flexibility; nonpoisonous and tasteless.

Disadvantages:Poor tensile strength,tear resistance,and abrasion resistance.

Plastic Material

TPE

Temperature range:-60 to+130℃. Advantages:they can be processed as easily as thermoplastics and have the Most important properties of rubber.it’s elastic,supple and flexible.TPE are No risk for the environment.In contrast to rubber,they can simply be recycled And re-processed.it’s easy to be colored with lower cost.

Disadvantages:For soft TPE,the compression set,heat-resistance,and oil resistance.

It is not better than the rubber under high temperature.

PVC

Temperature range:-40to+70℃.

Rubber Extrusions Process

The process of polymer extrusion involves taking raw materials and creating a product that can be formed into a unique profile of a variety of lengths, shapes and colors. The profiles are highly customizable and can be made from almost any type of rubber. There are two processes for rubber extrusion; continuous in-line cure and off-line cure.

We promise that our factory use 100% new material Which Meet directive of RoHS and also could provide Custom Compounding such as anti-fire,food-grade, etc upon request.

Continuous in-line cure extrusion

In this process the heated rubber is driven through a die in a uniform stream and travels through a ‘curing tunnel’ that raises the product to the appropriate vulcanizing temperature and maintains that temperature until the curing process is complete. There are multiple methods that can be used to form the ‘curing tunnel’ including; high velocity hot air, microwave ovens, hot liquid curing medium (LCM) or a fluidized bed of glass Ballotini beads. The length of the tunnel is taken into consideration along with the speed to calculate the temperature throughout the vulcanizing process. As the cured rubber exits the tunnel it is moved into a cooling channel where the rubber is cooled and residue is removed. The speed at which the product travels through the cooling channel is facilitated by a puller at the end of the line to maintain overall stability.

Some of the advantages of continuous curing are; the ability to produce unbroken lengths, increased manufacturing speed, minimal labor, and efficient uses of energy and space. This process also allows for the combination of multiple materials.

This process does have some limitations. Typically the cost of raw materials is higher, and there can be size and shape limitations.

Extrusion

Our rubber extrusions include profiles and tubing, cut washers, and gaskets. With our state-of-the-art manufacturing facility, loacted in China., we provide extruded rubber manufacutring for a range of products, including:

Vulcanized spliced gaskets

Gaskets with molded or injection molded corners

Simple and complex shaped seals, washers and gaskets

Strips, cord and seals in long lengths on reels or coils, or as cut lengths

Holes, notches, and special cut-outs can be fabricated into our extruded products

We are able to extrude a variety of materials, including SBR, Neoprene and EPDM.

Our experienced staff has the industry and application expertise to manufacture your custom part to exacting specifications, ensuring that we will manufacture your part right the first time and deliver it on time . Call today to see how we can be of assistance.

Manufacturing Tolerance

The purpose of the subsequently compiled tolerances from there spective standard is to facilitate the quick assignment of tolerated dimensional deviations.

Not applicable to drawings with fixed tolerances.

Soild and soft rubber profiles(sections) based on DIN ISO 3302-1E2

Nominal range in mm+/- mm
 1.50.25
1.5to2.50.35
2.5to40.4
4to6.30.5
6.3to100.7
10to160.8
16to251
25to401.3
40to631.6
63to1002

Sponge rubber profiles profiles(sections) based on DIN ISO 3302-1 E3

Nominal range in mm+/- mm
 1.50.4
1.5to2.50.5
2.5to40.7
4to6.30.8
6.3to101
10to161.3
16to251.6
25to402
40to632.5
63to1003.2

Sponge rubber profiles profiles(sections) based on DIN ISO 3302-1 E3

Nominal range in mm+/- mm
 6.30.5
6to100.7
10to160.8
16to251
25to401.3
40to631.6
63to1002.0
100to1602.5
160to631.5%

Toler for custom lengths(rubber) based on DIN ISO 3302-1 L3

Nominal range in mm+/- mm
 401.6
40to632
63to1002.5
100to1603.2
160to2504
250to4005
400to6306.3
630to100010
1000to160012.5
1600to250016
2500to400020
4000to 0.005

Toler for custom lengths(rubber) based on DIN ISO 3302-1 L3

Nominal range in mm+/- mm
 30.4
3to60.6
6to100.7
10to180.8
18to301
30to501.2
50to801.5
80to1201.9
120to1802.3
180to2502.8
250to3203.5
320  1.4%

Toler for custom lengths(rubber) based on DIN ISO 3302-1 L3

Nominal range in mm+/- mm
 4005
400to100010
1000to250020
2500to600030
6000to 2%