China Customized Rubber Part/Rubber Bumper/Rubber O Ring/Rubber Seal injection molded plastic auto parts

Product Description

Customized Rubber Part/Rubber Bumper/Rubber O Ring/Rubber Seal

Applications

Used in all applications, running machines, auto machine, home appliance, especially for automobiles and motorcycles ,dampen vibration; prolong machine life, good rigidity and protection
 

Service OEM OR ODM
Part Material Silicone or rubber ( NR, NBR,SBR,BR,IR,CR,EPDM,IIR, FKM,SIR,PU,ACM,CO,etc)
Material Hardness Silicone about 30~90 Shore A; 
rubber about 30~90 Shore A
Size Customized
Shape Customized
Color Customized according to Pantone colors   
Appearance  as customer’s requirement 
Drawings 2D OR 3D acceptable
Temperature Resistance -40~300 degree centigrade
Tolerance 0.05mm
Technology Hot pressing molding or injection Molding
Second Processing Vulcanizing/ Deburring/Silk-screen/Carving/printing
Quality control internal QC control
Part Feature 1.Oxidation , Chemical,oil, acid ,alkali ,  weather  resistance 
2. colorful ,Anti-aging,good flexibility, good elasticity
Food grade material FDA or LFGB
MOQ: Amount : More than USD 500/each part(depends on specific part)
Shipping ways 1. By sea from ZheJiang port or HangZhou port. 2. By express: DHL/UPS/FEDEX ,etc 3. By air
Package Normally PE bag+carton or customized as customer’s request 
Trade Term Ex-works; FOB ZheJiang /HangZhou ; CIF
Payment Term Sample mold: 100% prepaid,MP Mould: 50% deposit by T/T in advance, balance 50% paid after samples approval
Goods: 50% deposit, 50% before shipment
T/T, L/C, Western Union, PAYPAL
Lead time 5~10 days for first article,10~25 days for MP parts (depends on part structure )
Specification Confirm to ISO-9001 and ROHS Directive Compliant Green Products
Application field 1. Electron components
2. Medical equipment
3. Home appliance
4. Mechanical equipment
5. Office facilities
6. Aviation
7. Construction
8. Automobile

Product shows:

Our factory: 

RUBBER PRODUCTS FOR CAR USE

 

 ABOUT US

General introduction:
HangZhou Bright Rubber Plastic Product Co.,Ltd represents high quality and is backed up by our team of quality assurance experts and our ISO 9001 and TS 16949 certifications. Its plant occupies over 2500 square meters of land. Our strengths are our ability to respond quickly and efficiently to customer needs, excellent quality standards, and top notch follow-up service. Our reputation as a reliable and efficient supplier is based on these facts. Our strong engineering team supports our ability to provide excellent quality and on-time delivery.
 
Office:
Our sale office is located in HangZhou city downtown, ZHangZhoug Province, China. It is in 2 hours drive distance to both our factory and airport or sea port in ZheJiang or HangZhou. It is also convenient to meet customers from different countries.
 
Products and materials:
Our company is engaged in manufacture Rubber and plastic parts. The main products include molded rubber parts, Extrusion silicone tube/strip, silicone sponge tube, Injection plastic parts, Extrusion plastic parts, Rubber sponge parts, PVC dipping, The main rubber raw material is EPDM, Natural Rubber, SBR, Nitrile, Silicone, Fluorosilicone, FKM, Neoprene, Urethane(PU), Polyacrylate( ACM), Ethylene Acrylic(AEM), Santoprene, HNBR, Butyl(IIR), LSR; The main plastic raw material is PP, PA, PE, POM, PC, PVC, PS, PVC, TPE, TPR, TPU.
 
Profound experience:
Our engineers and QC experts are engaged in rubber plastic industry over 30 years. Our core management team has rich experience and deep understanding of rubber development.
 
Industry Standard:
Material standard: ASTM D2000, SAE J200.
Tolerance standard: RMA A1,A2,A3, DIN  ISO 3302-1,DIN-7715/BS-3734 ,
PPAP document is available for auto parts.
 
Production capacity:
Factory is working 24 hours by 3 shifts every day, It takes only 3 minutes to finish 1 mold of products. (If 1 mold has 50 cavities, then we can produce 50PCS of products within 3 minutes).
Production machines including 350T vacuum pressing machine, 300T pressing machine, 250T machines and more others.
 
Quality control and test:
It has more than 10 times of quality check for every order, beginning from raw material check to package check. Every production line has at least 2 QC staff for random check and regular check.
Test: manufactory testing machine includes rubber tension tester, rubber vulcanization instrument, durometer, calipers, ageing oven for Density test, Elongation at break, Bonding strength, Pulling force test, twisting force test, Rergarding other test like anti-high/low temperature which will be tested by Third Party Testing Center as customer required.
 
Sale service:
Every salesman should be in service after strictly trained with productions knowledge and customer-service requirements. Be skilled in exporting business procedure and English communication.

FAQ:
Q: Are you manufacturer or trading company?
A: we are manufacturer.

Q: How to get the quickest quotation?
A: send e-mail with drawing directly.

Q: How to get quotation without drawing?
A: possible send sample, pictures or detail descriptions of products to us, we will return you drawing for confirm.

Q: I have an idea for a new product, but not sure if it can be manufactured. Can you help?A. Yes! We are always happy to work with potential customers to evaluate the technical feasibility of your idea or design and we can advise on materials, tooling and likely set-up costs. 

Q: My custom products have already been developed on CAD. Can you use the drawings?
A. Yes! DWG, DXF, IGES, Solidworks and Rhino files can all be used to generate quotes, models and mould tools – this can save time and money in producing your parts.

Q: Can I test my idea/product before committing to mould tool manufacture?
A. Yes, we can use CAD drawings to make models for design and functional evaluations.

Q: What type of plastic material is best for my design/product?
A. Materials selection depends on the application of your design and the environment in which it will function. We will be happy to discuss the alternatives and suggest the best material.

Q: How about sample?
A: free sample is available for your quality evaluation, but you should pay the freight. Regarding customize products, sample and CZPT order will go first before mass production.

US $0.1-30
/ Piece
|
200 Pieces

(Min. Order)

###

Material: NBR/Cr/EPDM/HNBR/Silicone/FKM/Butyl
Application: Machinery, Industrial Component, Electronic Product, Vehicle, Household Appliance
Effect: Fixture&Sealing
Cross-Section Shape: Rectangle Ring
Color: Black/White/Blue/Red/Yellow, etc
Hardness: 30-90 Shore a

###

Customization:

###

Service OEM OR ODM
Part Material Silicone or rubber ( NR, NBR,SBR,BR,IR,CR,EPDM,IIR, FKM,SIR,PU,ACM,CO,etc)
Material Hardness Silicone about 30~90 Shore A; 
rubber about 30~90 Shore A
Size Customized
Shape Customized
Color Customized according to Pantone colors   
Appearance  as customer’s requirement 
Drawings 2D OR 3D acceptable
Temperature Resistance -40~300 degree centigrade
Tolerance 0.05mm
Technology Hot pressing molding or injection Molding
Second Processing Vulcanizing/ Deburring/Silk-screen/Carving/printing
Quality control internal QC control
Part Feature 1.Oxidation , Chemical,oil, acid ,alkali ,  weather  resistance 
2. colorful ,Anti-aging,good flexibility, good elasticity
Food grade material FDA or LFGB
MOQ: Amount : More than USD 500/each part(depends on specific part)
Shipping ways 1. By sea from Shanghai port or Ningbo port. 2. By express: DHL/UPS/FEDEX ,etc 3. By air
Package Normally PE bag+carton or customized as customer’s request 
Trade Term Ex-works; FOB Shanghai/Ningbo ; CIF
Payment Term Sample mold: 100% prepaid,MP Mould: 50% deposit by T/T in advance, balance 50% paid after samples approval
Goods: 50% deposit, 50% before shipment
T/T, L/C, Western Union, PAYPAL
Lead time 5~10 days for first article,10~25 days for MP parts (depends on part structure )
Specification Confirm to ISO-9001 and ROHS Directive Compliant Green Products
Application field 1. Electron components
2. Medical equipment
3. Home appliance
4. Mechanical equipment
5. Office facilities
6. Aviation
7. Construction
8. Automobile
US $0.1-30
/ Piece
|
200 Pieces

(Min. Order)

###

Material: NBR/Cr/EPDM/HNBR/Silicone/FKM/Butyl
Application: Machinery, Industrial Component, Electronic Product, Vehicle, Household Appliance
Effect: Fixture&Sealing
Cross-Section Shape: Rectangle Ring
Color: Black/White/Blue/Red/Yellow, etc
Hardness: 30-90 Shore a

###

Customization:

###

Service OEM OR ODM
Part Material Silicone or rubber ( NR, NBR,SBR,BR,IR,CR,EPDM,IIR, FKM,SIR,PU,ACM,CO,etc)
Material Hardness Silicone about 30~90 Shore A; 
rubber about 30~90 Shore A
Size Customized
Shape Customized
Color Customized according to Pantone colors   
Appearance  as customer’s requirement 
Drawings 2D OR 3D acceptable
Temperature Resistance -40~300 degree centigrade
Tolerance 0.05mm
Technology Hot pressing molding or injection Molding
Second Processing Vulcanizing/ Deburring/Silk-screen/Carving/printing
Quality control internal QC control
Part Feature 1.Oxidation , Chemical,oil, acid ,alkali ,  weather  resistance 
2. colorful ,Anti-aging,good flexibility, good elasticity
Food grade material FDA or LFGB
MOQ: Amount : More than USD 500/each part(depends on specific part)
Shipping ways 1. By sea from Shanghai port or Ningbo port. 2. By express: DHL/UPS/FEDEX ,etc 3. By air
Package Normally PE bag+carton or customized as customer’s request 
Trade Term Ex-works; FOB Shanghai/Ningbo ; CIF
Payment Term Sample mold: 100% prepaid,MP Mould: 50% deposit by T/T in advance, balance 50% paid after samples approval
Goods: 50% deposit, 50% before shipment
T/T, L/C, Western Union, PAYPAL
Lead time 5~10 days for first article,10~25 days for MP parts (depends on part structure )
Specification Confirm to ISO-9001 and ROHS Directive Compliant Green Products
Application field 1. Electron components
2. Medical equipment
3. Home appliance
4. Mechanical equipment
5. Office facilities
6. Aviation
7. Construction
8. Automobile

Designing Injection Molded Parts

Injection molded parts are designed to work together to form a whole. While the small plastic toys like Legos aren’t typically fabricated for assembly, these products still require precision measurements. For this reason, the designs of injection molded parts should be perfected for manufacturing. The designs should also minimize error potential.

Design considerations for injection molded parts

Injection molded parttWhen designing injection molded parts, it’s essential to consider the wall thickness of the part. Ideally, the wall thickness is uniform across the entire part. This allows the entire mold cavity to fill without restriction, and reduces the risk of defects. Parts that don’t have uniform wall thickness will have high stresses at the boundary between two sections, increasing the risk of cracks, warping, and twisting. To avoid such stresses, designers can consider tapering or rounding the edges of the part to eliminate stress concentration.
The wall thickness of the injection molded part is important because it affects many key characteristics. Therefore, it is critical to take proper care in choosing the wall thickness to avoid costly delays caused by mold problems or mold modification. The nominal wall thickness should be determined based on the function and stress requirements of the part. Similarly, the minimum wall thickness should be calculated based on acceptable stress. Too thin a wall can result in air traps and excessive plastic pressure.
Injection molded parts that have sharp corners are a common cause of defects. Sharp corners create stress concentrations, poor flow patterns, and increased injection mold wear. To minimize these problems, designers should keep inside corners and outside corners at half the wall thickness. This will help minimize stress and ensure the integrity of the part.
Another important design consideration for injection molded parts is the thickness of the ribs. They should be at least two-thirds of the outer wall. Thicker ribs may result in sink marks on the outer surface. Undercuts also complicate the mold design and increase the cost of the part.
Tolerance variation is also an important consideration. It depends on materials, process control, and tool design. Tolerance variation varies from molder to molder, and designers should discuss critical tolerance requirements with molders. If the part has to be manufactured to a particular tolerance, designers should consider options for mold revisions to minimize the tolerance variance. Additionally, designers may need to intentionally design extra clearance. To compensate for such variation, the molder may remove some steel or modify the design. In some cases, interference can be solved by welding.
Design considerations for injection molded parts should be discussed with material science professionals early in the design process. This is critical because changes to the mold design can be costly. Therefore, achieving the best possible result is critical. By following design guidelines, manufacturers can avoid common defects. A uniform wall thickness is also important because non-uniform thickness can lead to warping the part as it cools.
Another important factor for injection molded parts is the flowability of the material in the mold cavity. The resin should be able to flow easily around rounded corners. For example, a molded part with a curved undercut will not eject properly from the mold if there’s no space between the two sides. For this reason, designers should consider the flowability of the molded material before deciding on a design.

Adding a runner system to an injection molding machine

Injection molded parttThere are two main types of runner systems: hot runner systems and cold runner systems. In a hot runner system, a runner nozzle delivers the molten plastic into the mold cavity. A cold runner system does not require the use of a nozzle and acts as a conduit for the molten plastic.
The design of a hot runner mold should balance the activity of plastic solution and mold cavities. Ideally, a mold with two cavities is better balanced than one with three. However, it is important to remember that a three-cavity mold requires a manifold balance of human activities.
Plastic mold runner systems are crucial for ensuring consistent fill rates and pressure. Whether you are producing single or multiple-cavity plastic parts, a runner system will keep your processes consistent. When choosing a runner system, make sure you have the right one for your application.
Hot runner systems can reduce cycle times by as much as 10 to 30 percent. They help improve quality control and minimize material waste by keeping the plastic molten throughout the molding process. Moreover, they help save on plastic raw materials and energy. These features make them ideal for large production lines.
A hot runner system can also help prevent overfilling a cavity. Make sure that the volume of the hot runner is equal to the volume of the mold cavity. Otherwise, the plastic solution will be trapped inside the hot runner for too long and decompose.
Hot runner systems come in many varieties. One type of hot runner system is called the sprue hot runner system. This system uses a mechanical valve to open and close a nozzle. This type of hot runner is more effective and efficient than a general-purpose hot runner. However, it is also more expensive.
In a three-plate mold, the runner system is positioned between the core and cavity plates. When the mold is opened, the runner system automatically separates from the molded part. This eliminates the need for manual labor, but increases the cost of tooling.
The runner system is important for producing parts that are both thin and thick. The runner should be narrow but large so as not to create voids and improve the overall performance of the final product. Runner systems are also important for reducing the amount of energy needed to form and regrind the material.
A hot runner system is one way to improve the speed and accuracy of plastic molding. It helps avoid problems with waste by reducing the amount of plastic wasted. Furthermore, a hot runner system also prevents expensive repairs. By adding a runner system to an injection molding system, you will ensure better quality and precision, and avoid unnecessary downtime and costly repairs.
Hot runner systems are ideal for high-volume productions. However, they require a higher level of maintenance. In addition, hot runner systems are difficult to clean and often leave waste material. Hidden runners may also be inconvenient to remove, especially when changing materials or colors. They can also lead to sticking issues if they are made from thermally sensitive materials.

Using a thermally isolated cold injection unit

Injection molded parttThermostatic control of temperature in an injection molding process can make a significant impact on part quality. High mold temperatures should be regulated by using a temperature-controlled cooling unit. These devices are equipped with pumping systems and internal heaters. The temperature of the injected plastic determines the plastic’s flow characteristics and shrinkage. Temperature also influences the surface finish, dimensional stability, and physical properties of the finished product.
A thermally isolated cold injection unit allows mold operators to mold parts at lower temperatures than a conventional injection molding machine. The injection mold itself is composed of two steel halves. The two halves are connected by a mechanical hinge. During injection molding, a small amount of plastic is forced into the mold cavity. The injected plastic is then allowed to cool into a solid state. The molded part then falls out of the mold halves. The injected part then enters a bin to be collected.
The heat/cool injection molding process can improve the aesthetics of molded parts significantly. The effects of this technique are particularly apparent with amorphous resins, which do not form a skin during the injection phase. The molded parts have a higher gloss than with conventional molding techniques.
This process requires less clamping force than conventional injection molding and offers more design freedom. It also increases process capacity and materials savings. The process control for this process is more complex, with variables such as the amount of melt injection, water pressure, and water injection delay time.
The angle of repose is another criterion. A low angle indicates that the pellets are free-flowing, while an angle above 45deg indicates that the pellets are not free-flowing. This is important when processing nylon resins.
Plastic injection molding has made huge advances in recent decades. Today, most injection molds fall into one of two types: hot runner and cold runner. Each has its advantages and disadvantages. Understanding how they differ will help you decide which method is right for you.
Injection molding is a highly effective manufacturing process that gives manufacturers a competitive edge over their competition. Using this process produces high-quality plastic and metal parts with minimal waste and a low cycle time. The process is also extremely accurate and produces products with the perfect blend of flexibility and strength.
China Customized Rubber Part/Rubber Bumper/Rubber O Ring/Rubber Seal     injection molded plastic auto partsChina Customized Rubber Part/Rubber Bumper/Rubber O Ring/Rubber Seal     injection molded plastic auto parts
editor by czh 2022-11-25