China Standard Custom Rubber Mounting FKM Nr Cr NBR CZPT Product Molded Silicone & Rubber Part injection molded parts drawing

Product Description

Rubber bushing/rubber stopper/rubber shock absorber is vulcanized with various of material, such as EPDM, NR,SBR etc.
With Good resistance to seasonality, heat resistance, chlorination resistance, aging resistance.
Inside stainless steel and It has a very good damping effect.
Are widely applied in any area, such as furniture, Chassis instrument etc
 
Production Description

Item Name Rubber bushing, ruubber stopper, rubber shock absorber
Material EPDM,NBR,NR,SBR,PVC,EPT, PP/ABS
Color Black, white, red,etc
Dimension As client’s requirement
Hardness 30~90ShA
Feature High elasticity, insulation, abrasion resistance, oil resistance, aging resistance, high temperature resistance, cold resistance, anti-corrosion, anti-static
Application Removable instruction,furniture,etc
OEM welcome
MOQ Meet your requirement
Certification REACH, ROHS,FDA,SGS,etc

The advantage and property of rubber bushing/rubber stopper/rubber shock absorber
1.We adopt heighten new technology craft
2.The material of rubber bushing is complete fresh and tasteless
3.Not fade, anti-slip wear-resistant anti – pressure , damping, acid and alkali resistant
4. Environment friendly


The different material of rubber bushing will cause different property.
EPDM/NBR/silicone/SBR/PP/PVC etc.

Items EPDM NR silicone PVC
Hardness
(Sha)
30~85 30~90 20~85 50~95
Tensile strength
(Mpa)
≥8.5MPa > 20 Mpa 3~8 10~50
Elongation(%) 200~550 1000% 200~800 200~600
Specific Gravity 0.75-1.6 1.15-1.21 1.25~1.35 1.3~1.7
Temperature range -40~+120°C -50~70ºC. -55~+350°C -29°C – 65.5°C

1. the property of NR
 It has good wear resistance, high elasticity, breaking strength and elongation, But in the air, it is easy to get age, and it is get sticky when it get in touch with heat, which is easy to expand and dissolve in mineral oil or gasoline, but it is resistant to strong acid, but not to Alkali . working temperature is -50~70ºC.
2. the property of EPDM
Weather ability, aging resistance, CZPT resistance, chemical stability are excellent, and CFCS and a variety of refrigerants. Working temperature is -50~150
3. the property of silicone
It has excellent heat resistance, cold resistance, CZPT resistance and atmospheric aging resistant.Good electrical insulation performance,The tensile strength and wear resistance are generally poor and has non- oil resistant. The working temperature is -55~250ºC
4. The property of NBR
Good oil resistance, heat resistance, abrasion resistance, solvent resistance and high – pressure oil,But it is not suitable for CZPT solvents, such as ketones, ozone, nitro-hydrocarbons, and chloroform. The working temperature is -40~120 ºC
5. the property of CR
It has good elasticity, wear resistance and atmospheric aging resistance. It is not afraid of violent distortion and flammability.Chemical stability. The working temperature is -40~100 ºC
6. The property of FKM
Excellent high temperature resistance,And have excellent chemical resistance, most oil and solvent (other than ketones and esters).cold resistance is not good.
 

About US
These years, We are working on various project of customers and long term working in rubber industry. We have faith in giving your professional advice on your particular project.
At present, our market have been expanded to more than 30 countries, and still growing.
First we will get drawing or sample from our client to check their design. If there is no drawing or sample, we will ask some question about product concept and design idea.
Then according to what application environment of rubber part, we will help design drawing and what raw material is best for rubber part. OEM parts are ok for us.
 
We can meet your requirement of the design and use for different shapes and material,
 And high/low temperature, foam/sponge or CZPT rubber profile, fire resistance and special property of any rubber profile and molding rubber part
The advantage of our company
1.We have excellent complete production line with advanced production and test equipment
 Adding First-class technicians, so that we can  offer you the competitive price and high quality ,fast delivery time .
2.We have a special drawing design department to design the correct drawing data meeting your requirements. Then, we will use CAD or other format drawing to carry on tracking the production of tooling, sample ,mass goods. To avoid something wrong to each process. To make sure all of dimension are correct.
3.We also has special production supervision department. The engineer staff will Supervise  each process from the manufacture of tooling to the production of mass goods.
Reduce something wrong happened, finally offer you parts meeting your technology requirement.
4. All of Raw material are past quality certification,In the meantime, we will first delivery test report of rubber part when all of mass goods are finished. And make sure the quality meet your requirement, then make shipment.

Packing and shipment

  • one part is packaged with 1 plastic bag, then certain quantity of mounting are put into carton box.
  • Carton box insider rubber mounting is with packing list detail. Such as, item name, the type number of rubber mounting, quantity of rubber mounting, gross weight,net weight, dimension of carton box,etc
  • All of carton box will be put on 1 non-fumigation pallet, then all carton boxes will be wrapped by film.
  • We have our own forwarder which has Rich experience in delivery arrangement to optimize the most economic and quickest shipping way, SEA,  AIR,  DHL, UPS ,FEDEX, TNT , etc.
  • Why choose us?
  • 1.Product: we specialize in rubber molding,injection and extruded rubber profile.
       And complete advanced production equipment and test equipment
    2.High quality:100% of the national standard has been no product quality complaints
    the materials are environmentally friendly and the technology reaches the international advanced level
    3.The competitive price:we have own factory, and the price is directly from factory. In additional,perfect advanced production equipment and enough staff. So the price is the best.
    4.Quantity :Small quantity is available
    5.Tooling:Developing tooling according to drawing or sample, and solve all of questions
    6.Package: all of package meet standard internal export package, carton outside, inside plastic bag for each part; as your requirement
    7.Transport:We have our own freight forwarder which can guarantee our goods can be delivered safely and promptly by sea or air
    8.Stock and delivery:Standard specification,lots of stocks, and fast delivery
    10. Service:Excellent service after-sales
     
  • Common Questions
  • What is the minimum order quantity for your rubber products?
  • Answer:We didn’t set the minimum order quantity,1~10pcs some client has ordered.
  • If we can get sample of rubber product from you?
  •  Answer:Of course, you can. Feel free to contact me about it if you need it.
  • Do we need to charge for customizing our own products? And if it is necessary to make tooling?
  • Answer: if we have the same or similar rubber part, at the same time, you satisfy it.
     Well, you don’t need to open tooling
    New rubber part, you will charge tooling according to the cost of tooling.
    In additional,if the cost of tooling is more than 1000 USD, we will return all of them to you in the future when purchasing order quantity reach certain quantity our company rule
  • How long you will get sample of rubber part?
  • Answer: Usually it is up to complexity degree of rubber part. Usually it take 7 to 10work days.
  • How many your company product rubber parts?
  •  Answer:It is up to the size of tooling and the quantity of cavity of tooling. If rubber part is more complicate and much bigger, well maybe just make few, but if rubber part is small and simple, the quantity is more than 200,000pcs.
  • Silicone part meet environment standard?
  • Answer:Our silicone part are all high grade 100% pure silicone material. We can offer you certification ROHS and SGS, FDA .Many of our products are exported to European and American countries. Such as: Straw, rubber diaphragm, food mechanical rubber, etc.
     
  • FAQ
    1. Are you factory or trade company?
    We  specialize in manufacturing rubber and plastic manufacturer, founded in 2004
    2. What’s the order process?
    A: Inquiry—provide us all clear requirements, such as drawing with detail technical data, or original sample
    B: Quotation—official quotation sheet with all detail specifications including price terms,shipment terms,etc
    C: Payment terms—100% prepaid the cost of tooling before making new sample
                    T/T 30% in advanced, and the balance according to the copy of the B/L
    D:Develop tooling—open the mould according to your requirement
    E:Sample confirmation—send you the sample for confirmation with test report from us
    F:Production—mass goods for order production
    G:Shipping— by sea, air or courier. Detailed picture of package will show you.
     
    3. What other terms of payment you use?
       PayPal, Western Union

Usage: Agricultural, Industrial, Medical, Vehicle, Electronic, Household
Material: EPDM, Nr, NBR, Silicone, PVC, FKM, Eptetc
Process Technology: Molding or Injection
The Name of Enterprise: Manufacturer
Certification: FDA, SGS, Reach, RoHS, etc
OEM: Welcome
Samples:
US$ 0.3/Piece
1 Piece(Min.Order)

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Customization:
Available

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Injection molded partt

Importance of Wall Thickness in Injection Molded Parts

When designing injection molded parts, it is important to keep the wall thickness uniform. Uneven wall thickness can lead to warping and sinking. To minimize these problems, injection molded parts should have a wall thickness of 40 to 60 percent of the adjacent wall. The thickness of the wall should also fit within the range recommended for the resin that is being used. If the wall thickness is too thick, it should be cored out. Unnecessary wall thickness alters the dimensions of the part, reduces its strength, and may require post-process machining.

Designing out sharp corners on injection molded parts

Designing out sharp corners on injection molded components can be a challenging process. There are several factors to consider that impact how much corner radius you need to design out. A general rule is to use a radius that is about 0.5 times the thickness of the adjacent wall. This will prevent sharp corners from occurring on a part that is manufactured from injection molding.
Sharp corners can obstruct the flow of plastic melt into the mold and create flaws on parts. They can also cause stress concentration, which can compromise the strength of the part. To avoid this, sharp corners should be designed out. Adding radii to the corners is also an effective way to avoid sharp angles.
Another common problem is the presence of overhangs. Injection molding parts with overhangs tend to have side-action cores, which enter from the top or bottom. As a result, the cost of making these parts goes up quickly. Moreover, the process of solidification and cooling takes up more than half of the injection molding cycle. This makes it more cost-effective to design parts with minimal overhangs.
Undercuts on injection molded parts should be designed with a greater radius, preferably one or two times the part’s wall thickness. The inside radius of corners should be at least 0.5 times the wall thickness and the outside radius should be 1.5 times the wall thickness. This will help maintain a consistent wall thickness throughout the part. Avoiding undercuts is also important for easy ejection from the mold. If undercuts are present, they can cause a part to stick inside the mold after it has cooled.
Keeping wall thickness uniform is another important issue when designing plastic parts. Inconsistent wall thickness will increase the chance of warping and other defects.

Adding inserts to injection molded parts

Adding inserts to injection molded parts can be a cost-effective way to enhance the functionality of your products. Inserts are usually manufactured from a wide range of materials, including stainless steel, brass, aluminum, bronze, copper, Monel, nickel/nickel alloy, and more. Selecting the right material for your parts depends on the application. Choosing the correct material can help prevent defects and keep production cycles short. The insert material should be durable and resist deformation during the injection molding process. It must also be thin enough to provide the desired grip and have a proper mold depth.
The benefits of adding inserts to injection molded parts include the ability to design parts with unique shapes. These parts can be aesthetically pleasing, while still remaining durable and resistant to wear and tear. In addition, insert molding allows products to have a good external finish. In addition to being cost-effective, insert molding is considered a more efficient manufacturing method than other conventional methods.
Adding inserts to injection molded parts is an excellent way to enhance the strength and performance of your products. There are many different types of inserts, including threaded nuts, bushings, pins, and blades. Some types are even available with knurled outer surfaces that help them adhere to plastic.
In addition to being cost-effective, insert molding is environmentally friendly and compatible with many types of materials. Typical inserts are made of metal or plastic. Depending on the application, stiffening inserts may also be made from wood.

Importance of uniform wall thickness

Injection molded partThe uniformity of wall thickness is an essential factor in the plastic injection molding process. It not only provides the best processing results, but also ensures that the molded part is consistently balanced. This uniformity is especially important for plastics, since they are poor heat conductors. Moreover, if the wall thickness of an injection molded part varies, air will trap and the part will exhibit a poorly balanced filling pattern.
Uniform wall thickness also helps reduce shrinkage. Different materials have different shrinkage rates. For instance, thick parts take longer time to cool than thin ones. As the part’s thickness increases, cooling time doubles. This relationship is due to the one-dimensional heat conduction equation, which shows that heat flows from the center of the part toward the cooling channel. However, this relationship does not hold for all types of plastics.
The general rule for maintaining uniform wall thickness in injection molded parts is that walls should be no thicker than 3mm. In some cases, thicker walls can be used, but they will significantly increase production time and detract from the part’s aesthetic appeal and functionality. Furthermore, the thickness of adjacent walls should be no thicker than 40-60% of each other.
The uniformity of wall thickness is critical to the overall quality and efficiency of the injection molding process. An uneven wall thickness can cause twisting, warping, cracking, and even collapse. A uniform wall thickness also reduces residual stress and shrinkage. Injection molded parts are more stable when the wall thickness is uniform.
An injection molded part with thick walls can be problematic, especially when the molded parts are shaped like a cube. A non-uniform wall thickness can result in problems and costly retooling. Fortunately, there are solutions to this problem. The first step is to understand the problem areas and take action.

Using 3D printing to fabricate molds

splineshaftThe use of 3D printed molds allows manufacturers to manufacture a wide range of injection molded parts. However, 3D-printed molds are not as strong as those made from metallic materials. This means that they do not withstand high temperatures, which can degrade them. As such, they are not suitable for projects that require smooth finishing. In order to reduce this risk, 3D-printed molds can be treated with ceramic coatings.
Using 3D printing to fabricate injection molds can help reduce costs and lead times, allowing manufacturers to bring their products to market faster. This process also has the advantage of being highly efficient, as molds made using 3D printing can be designed to last for many years.
The first step in fabricating an injection mold is to design a design. This design can be complex or simple, depending on the part. The design of the mold can be intricate. A simple example of a mold would be a red cup, with an interior and exterior. The interior portion would have a large cone of material protruding from the other side.
Injection molding is an effective way to produce thousands of parts. However, many engineering companies do not have access to expensive 3D printers. To solve this problem, companies should consider using outside suppliers. In addition to speeding up the manufacturing process, 3D printing can reduce the cost of sample parts.
Plastic injection molding still remains the most popular method for high volume production. However, this process requires a large up-front capital investment and takes a while to adapt. Its advantages include the ability to use multiple molds at once, minimal material wastage, and precision dosing. With an increasing number of materials available, 3D printing can be a smart option for companies looking to manufacture a variety of plastic parts.
China Standard Custom Rubber Mounting FKM Nr Cr NBR CZPT Product Molded Silicone & Rubber Part   injection molded parts drawingChina Standard Custom Rubber Mounting FKM Nr Cr NBR CZPT Product Molded Silicone & Rubber Part   injection molded parts drawing
editor by CX 2023-05-06