China Custom mold pp parts factory high quality plastic part product ABS plastic joint PP PVC PE plastic injection parts standard tolerances for injection molded parts

Model Number: YL-A22117B
Plastic Modling Type: injection
Processing Service: Printed, Oil injection, Electroplate
Product name: High quality plastic injection parts
Material: Medical usage plastic
Color: Transparency or custom
Dimension: Customer’s drawing
Feature: Waterproof,good insulation and plasticity
Certification: RoHS,Food grade,LFGB
Application: Medical parts
Drawing format: DWG,IGS,STP
Extra service: Support OEM/ODM
Type: Factory
Packaging Details: Specified quantity packed in 1 PE bag,then put specified PE bags into paper carton,and seal it.Then paste the shipping mark on the carton,finally do the package belt.
Port: HangZhou

Custom mold pp parts factory high quality plastic part product ABS plastic joint PP PVC PE plastic injection parts Company’s ability: 1. More than 12 years of production experience. 2. The choice of 3500+ customers worldwide. 3. Some existing general molds 5000+.4. Provide design drawing or sample, support OEM/ODM customization. 5. We can design, develop and produce one-stop service for customers. Service standards: 1. Molding process: imported materials, injection molding. 2. Product sample: existing samples are free, new products can be customized 3. Sample time: 1day for stock sample;7-10 days for customized sample. 4.Delivery time: 7-10 days as usual, other as required by order. 5. Product grade: RoHS,PAHs,REACH,Food Grade,LFGB,MSDS. 6. Product features: precise size, non-toxic, tasteless, tear-resistant,good elasticity. 7. Value-added service: be printed LOGO,oil injection,electroplating,custom packing. Details Images Performance of plastic prfiles.Accurate size,soft,good transparency,tear resistance,wear resistance.Good impact resistance,uv resistance,anti-ageing, drop-resistant.Stable chemical,weak acid and alkali resistance.Non-toxic,colorful and tasteless.Keep the shape constant at room temperature. Injection molding production mode.Available for all thermoplastic materials (ABS, PP, PE,PVC,PC,PPR,PET,etc.)Small tolerances, precise dimensions and customized products for various structures.Meet RoHS, PAHs, REACH, LFGB,MSDS certifications.Good plasticity, low shrinkage, light weight.Can do two-color, water plating, vacuum plating, oil spraying. Material Parameters

Material name Shrinkage rate DensityTemperature absorption Weather resistance Mechanical properties and chemical stability
AS 0. 2~0. 7%1. 06~1.10 0. 5-0. 66% Moderate weather resistancePoor fatigue resistance, less susceptible to cracking due to stress, 88-92% light transmission
ABS0. 40~0. 80% 1.05 0.35% Poor weather resistanceChemically stable, resistant to acids, alkalis and salts, insoluble in alcohol
ABS+PC 0.5% 1.15 Indoor uv stabilityExcellent dimensional stability, good light stability, chemical stability
PMA0. 4~0. 7% 1.42 0. 3〜0. 37% Good weather resistanceCold resistance, corrosion resistance, dimensional stability, light transmission 90-92%
POM3〜3.5% 1.420. 4 〜0. 45% Exposure to the sun is easy to ageFatigue resistance, good abrasion reduction, low water absorption, good dimensional stability
PP 1.0 〜3.5% 0.9 0. 02% Bad weather resistanceGood resistance to bending, can be repeatedly folded without damage, not high abrasion resistance
PS 0. 6~0.8% 1.05 0.05% It is easy to appear turbidity and yellowing when exposedGood chemical stability, not resistant to organic solvents such as benzene and petrol, good electrical insulation
PE 1. 5~3. 6%0. 9~0. 96 0.03%Good irradiation resistanceHigh impact strength, chemically stable, excellent corrosion resistance
PC 0. 5 〜0. 8% 1.2 0.18% Resistance to agingRigid and tough, high impact strength, good dimensional stability, good creep resistance
PS 1.01~1.02% 1.14 3.00% Good low temperature resistance, poor high temperature stabilityHigh fatigue strength, good wear resistance and self-lubrication, dimensionally stable under humidity
PET 1.3~1.57% 1.37 Good weather resistanceOutstanding strength and rigidity, high hardness, excellent wear resistance, not easily deformed, good dimensional stability
TPU 1%1. 05~1.25 Good weather resistanceTensile strength, compression properties, tear strength. Good resilience and abrasion resistance, flexural resistance, etc
TPR 1. 5~2. 5% 0.9~1.3 Moderate weather resistanceExcellent colourability, soft to the touch, fatigue and temperature resistance, excellent softness to the touch
TPE 1.5% 0. 9~1.3 Good weather resistance and high temperature resistanceFire rated to IL 94V-0, hardness 50A
Manufacturing Technique Our Advantages Factory direct supply1.Factory products,price & quality & delivery be guaranteed.2.Our own designers and structure engineers.3.ODM/OEM products are welcomed.4.Free sample in stock,and sample time is faster. Experienced team members1.Over 12years workers in production.2.Over 7 years sales in exporting.3.From drawing,quotation,QC to delivery,control each process strictly.4.Long-term cooperation shipping forwarder,provide lower price and punctual delivery. Pre-sales & after-sales service1.Pre-sales,we will confirm all details with you carefully and accurately.2.After-sales,we will solve any problem timely and politely.3.Match your working hours,to answer you more quickly and conveniently. Click to home Our Customers/Team Members/Reviews Package & Delivery FAQ

Designing Injection Molded Parts

Designing injection molded parts involves careful consideration of various parameters, including the wall thickness and draft angle. These factors are essential for a strong, durable part. Improper wall thickness can lead to sinking and warping defects. To avoid these issues, ensure that the walls of your injection-molded parts have a uniform thickness that does not vary too much from the rest of the part.

Designing out sharp corners in injection molded parts

Injection molded parttWhen designing an injection molded part, it’s important to consider the corner radius. Sharp corners will create more stress, and this will lead to weak spots and cracks. Creating a radius around the corner helps distribute stress evenly and allows easier material flow and part ejection. Additionally, sharp corners in a mold can collect contaminants and create defects, including surface delamination.
Sharp corners in injection molded parts are a common source of stress and can cause the part to become damaged during the manufacturing process. In addition to trapping air, sharp corners may also lead to localized high temperatures that degrade the part. To reduce these risks, consider adding radii to all sharp corners.
Another important design factor to consider is wall thickness. Parts that have a smooth transition between sections should be designed with a minimum of five millimeters of wall thickness. Anything thicker will increase production cycle time and may also negatively impact mechanical properties. The use of fillets and chamfers can also help avoid these problems.
Designing out sharp corners in injection molded components can prevent costly problems from occurring during the manufacturing process. While the process is simple and straightforward, it needs to be done correctly to ensure quality. By following best practices, designers can ensure their parts won’t develop any problems or sink, warp, or voids. A poor design can also cause damage to the mold, which can cost thousands of dollars and hundreds of hours to redesign.
When designing injection molded parts, designers should consider the following guidelines. Incorporate internal and external radiuses. The internal radius (also called a fillet radius) is designed into the mold for improved quality and strength during the molding process. This radius is typically located on the inside corners or the bottom of a compartment. It can also be used for connecting walls and ribs. An external radius, on the other hand, is known as a round radius.
A right-angled part with sharp corners has a tendency to be loaded by pushing the vertical wall to the left. This creates a high-level of molded-in stress in the part. The resulting part may be weaker than expected because of the increased stress on the corner.

Importance of uniform wall thickness

Uniform wall thickness is a critical factor when designing injection-molded parts. This ensures that molten polymers can flow efficiently throughout the part. Additionally, it facilitates ideal processing. Varying wall thickness can cause problems during molding, such as air trapping, unbalanced filling, and weld lines. To ensure that your injection-molded parts are uniform, consult a plastic injection molding company that specializes in uniform wall thickness.
Injection-molded parts are more durable when the walls are uniform. A thin wall reduces the volume of material used in the part. However, thin walls can break during ejection. In addition, thin walls increase the possibility of voids. To prevent such problems, use larger machines that can produce parts with uniform wall thickness. This way, parts are easier to handle and ship.
Another important factor is the presence of gussets. These are support structures that stick out from a part’s surface. Gussets are useful for preventing warping, because they provide rigidity to thin unsupported sections. For this reason, gussets are essential when designing an injection-molded part.
Uniform wall thickness is especially critical in parts that have bends or rims. A uniform thickness helps maintain the mechanical strength and appearance of a part. However, this can be tricky as you may need to balance optical properties with mechanical ones. At Providence, we have the experience to help you navigate these challenges and produce quality parts.
Proper wall thickness is important for many reasons. It can affect both cost and production speed. The minimum wall thickness for injection molded parts depends on the part size, structural requirements, and flow behavior of the resin. Typically, injection molded parts have walls that are 2mm to 4mm thick. However, thin wall injection molding produces parts with walls as thin as 0.5mm. If you’re having trouble choosing the right wall thickness, consult an experienced injection molding company that can help you determine the appropriate wall thickness for your part.
Uneven wall thickness causes problems during injection molding. The uneven wall thickness may make the material flow through the part too quickly, or it may cause it to cool too slowly. This can lead to warping, twisting, or cracks. Even worse, uneven wall thickness can cause parts to become permanently damaged when they are ejected from the mold.

Importance of draft angle

Injection molded parttDraft angles are an important part of design for injection molded parts. These angles are necessary because friction occurs on surfaces that come into contact with the mold during the molding process. A part with a simple geometry would only require a single degree of draft, but larger parts would need at least two degrees.
Almost all parts requiring injection molding will require some amount of draft. The better the draft, the less likely the parts will have a poor finish and may bend or break. Furthermore, parts with inadequate draft will take longer to cool, extending cycle times. Moreover, if the parts are too thick or have too little draft, they may become warped.
Having a draft angle in injection molding is very important, especially if the mold has sharp corners. Without it, parts will come out scratched and will shorten the life of the mold. In some cases, parts may even not be able to eject from the mold at all. To prevent this, air needs to be allowed to get between the plastic and metal. This allows air to escape and prevents warping during ejection.
The importance of draft angle is often overlooked in the design process. Adding this angle to the mold can help prevent problems with mold release and reduce production costs. A draft angle will also allow parts to release from the mold more easily and will lead to better cosmetic finishes and fewer rejected parts. Additionally, it will reduce the need for costly elaborate ejection setups.
Draft angle should be added to the design as early as possible. It’s crucial for the success of the injection molding process, so it is best to incorporate it early in the design process. Even 3D printed parts can benefit from this detail. The size of the draft angle is also important, especially for core surfaces.
A draft angle can be large or small. The larger the draft angle, the easier it is to release the mold after the mold is completed. However, if the draft angle is too small, it can lead to scrapes on the edges or large ejector pin marks. Draft angles that are too small can lead to cracks and increase mold expenses.


Injection molded parttThere are many factors that contribute to the cost of injection-molded parts, including the material used for the mold and the complexity of the design. For example, larger parts will require a larger injection mold, which will cost more to manufacture. Additionally, more complex parts may require a mold with special features. Mold makers can advise you on how to design your part in order to reduce the overall cost of an injection-molded part.
One of the biggest costs related to the production of injection molded parts is the cost of the tooling. Tooling costs can reach $1,000 or more, depending on the design, materials, and finishing options. Tooling costs are less if the part quantity is small and repeatable. Higher part volumes may require a new mold and tooling.
Injection-molded parts’ cost depends on the material used and the price of procuring the material. The type of material also influences how long the part will last. Plastics that contain high percentages of glass fibers are abrasive and can damage an injection mold. Therefore, they are more expensive but may not be necessary for certain applications. Additionally, the material’s thermal properties may also affect the cycle time.
Mold size is another factor that impacts the cost. Larger molds require more CNC machinery and building space than smaller molds. Additionally, the complexity of the part will also impact the cost. Injection molds with sharp corners and complex ribs will cost more than small injection molds without intricate designs.
Injection molding is a complex process that requires a variety of moving parts. During the process, a critical piece of equipment is the injection die. This machine is a large part of the process, and comes in different sizes and shapes. Its purpose is to accept the hot plastic and machine it to extremely precise tolerances.
If your project requires a complex product with a high degree of complexity, injection molding is an excellent choice. It is ideal for initial product development, crowdfunding campaigns, and on-demand production. Mold modifications can also lower the cost of injection molding.
China Custom mold pp parts factory high quality plastic part product ABS plastic joint PP PVC PE plastic injection parts     standard tolerances for injection molded partsChina Custom mold pp parts factory high quality plastic part product ABS plastic joint PP PVC PE plastic injection parts     standard tolerances for injection molded parts
editor by czh2023-02-07