China Good quality Customized Cold Runner Injection Molding Plastic Molded Parts

Product Description

Customized cold runner injection molding plastic molded parts — Plastic Injection Parts


HangZhou Stick Industry is a company has 10 years’ experience on plastic injection and has a pro engineer team helping customers with any problem. We are 1 of leading ISO 9 shots Brand STK or Customized  Delivery Time  In about 30 days for new production  Packing  Standard export packing or customized  MOQ 1000 pcs FOB port HangZhou, China Shipment Air or Sea

Plastic Materials Applies

Material Name Features Applications
PP Lightweight, Heat Resistance, High Chemical Resistance, Scratch Resistance, Natural Waxy Appearance, Tough and Stiff, Low Cost Automobile (Bumpers, Covers, Trim), Bottles, Caps, Crates, Handles, Housings.
POM Strong, Rigid, Excellent Fatigue Resistance, Excellent Creep Resistance, Chemical Resistance, Moisture Resistance, Naturally Opaque White, Low/Medium Cost Bearings, Cams, Gears, Handles, Plumbing Components, Rollers, Rotors, Slide Xihu (West Lake) Dis.s, Valves
PC Very Tough, Temperature Resistance, Dimensional Stability, Transparent, High Cost Automobile (Panels, Lenses, Consoles), Bottles, Containers, Housings, Light Covers, Reflectors, Safety Helmets and Shields
PS Tough, Very High Chemical Resistance, Clear, Very High Cost Valves
ABS Strong, Flexible, Low Mold Shrinkage (Tight Tolerance), Chemical Resistance, Applicable for Electroplating, Naturally Opaque, Low/Medium Cost Automobile (Consoles, Panels, Trim, Vents), Boxes, Gauges, Housings, Inhalers, Toys
PA6 High Strength, Fatigue Resistance, Chemical Resistance, Low Creep, Low Friction, Almost Opaque/White, Medium/High Cost Bearings, Bushings, Gears, Rollers, Wheels
PA6/6 High Strength, Fatigue Resistance, Chemical Resistance, Low Creep, Low Friction, Almost Opaque/White, Medium/High Cost Handles, Levers, Small Housings, Zip Ties
PBT,PET Rigid, Heat Resistance, Chemical Resistance, Medium/High Cost Automobile (Filters, Handles, Pumps), Bearings, Cams, Electrical Components (Connectors, Sensors), Gears, Housings, Rollers, Switches, Valves
PVC Tough, Flexible, Flame Resistance, Transparent or Opaque, Low Cost Electrical Insulation, Household wares, Medical Tubing, Shoe Soles, Toys
HDPE Tough and Stiff, Excellent Chemical Resistance, Natural Waxy Appearance, Low Cost Chair Seats, Housings, Covers, Containers
PMMA Rigid, Brittle, Scratch Resistance, Transparent, Optical Clarity, Low/Medium Cost Display Stands, Knobs, Lenses, Light Housings, Panels, Reflectors, Signs, Shelves, Trays

Company Information

Our main production area is equiped with 40 molding machines of various size, ranging from 80 tons to 1400 tons clamping pressure.

This provides us with teh capability to mold shot weights from 0.1 gram to over 10000 grams with flexible production runs. 

Plastic Injection Solution:

*  Precision Injection Molding: From design consultancy & prototype tooling to high-volume  world-class production
*  Parts are widely used: Industrial, Automotive, Electronics & Medical

Technical Skills – Development, Design Skills
*  Design Consultation & Assistance
*  Pro/E, CAD/CAM/CAE including CHINAMFG Works(TM) and mold flow analysis
*  Material Selection Assistance
*  Quick turn-around prototype support
*  Secondary Operations including machining, welding & assembly

Molding – High Precision, High Concern
*  Plastic Decorating: In-Mold Decorating (in-mold labeling), pad printing & hot stamping
*  40 Molding machines from 80TONS to 1400TONS
*  High precision molding from medical to fiber optics components

Secondary Operations – Value Added Service
*  Pad Printing
*  Sonic Welding
*  Assembly & Packaging

Plastic Injection Equipment List

Equipment QTY Origin
Injection Machine 40 SETS ZheJiang / China
CNC Machine Center 5 SETS ZheJiang / China
EDM 6 SETS China
EDM Mirror 1 SETS Japan
Wire Cutting 5 SETS ZheJiang
Grinding Machine 3 SETS China
Milling Machine 10 SETS China
Drilling Machine 15 SETS China

Quality Testing Facility

Packing & Delivery

FAQ:
 

Q1: Are you trading company or manufacturer ?

A: We are factory. We are experienced manufcturer, have our own factory and warehouse.

Q2: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days for the OEM Parts, it is according to quantity.

Q3: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q4: What is your terms of payment ?

A: Our preferntial payment term is T/T 
     Mould Tooling : 50% down payment, 50% balance against the sample approval. 
     Mass Production: 50% down payment , 50% against the B/L copy 

Q5: What do we need if you want a quote?

A: Please kindly send us your 2D & 3D drawing of your product. The need the detail specifications as follows :
    1. Material 
    2. Surface treatment 
    3. Estimated production volume

Q6: How do I know about the production ?

A: We will double confirm your requirements and send you the samples before the mass production . 
     During the mass production , we will keep you informed of any progress.Besides, we will do 100% quality inspection 
     before shipment

Q7:How do we know about the deliery status ?

A: We will immediately inform you the tracking number once we get it from shipping agent. Besides, we will update the latest shipping information. 

 

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Material: ABS
Application: Medical, Household, Electronics, Automotive, Agricultural
Certification: RoHS, ISO
Place of Origin: China
Service: OEM Part
Transport Package: Wooden Box
Customization:
Available

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Can injection molded parts be customized or modified to meet unique industrial needs?

Yes, injection molded parts can be customized or modified to meet unique industrial needs. The injection molding process offers flexibility and versatility, allowing for the production of highly customized parts with specific design requirements. Here’s a detailed explanation of how injection molded parts can be customized or modified:

Design Customization:

The design of an injection molded part can be tailored to meet unique industrial needs. Design customization involves modifying the part’s geometry, features, and dimensions to achieve specific functional requirements. This can include adding or removing features, changing wall thicknesses, incorporating undercuts or threads, and optimizing the part for assembly or integration with other components. Computer-aided design (CAD) tools and engineering expertise are used to create custom designs that address the specific industrial needs.

Material Selection:

The choice of material for injection molded parts can be customized based on the unique industrial requirements. Different materials possess distinct properties, such as strength, stiffness, chemical resistance, and thermal stability. By selecting the most suitable material, the performance and functionality of the part can be optimized for the specific application. Material customization ensures that the injection molded part can withstand the environmental conditions, operational stresses, and chemical exposures associated with the industrial application.

Surface Finishes:

The surface finish of injection molded parts can be customized to meet specific industrial needs. Surface finishes can range from smooth and polished to textured or patterned, depending on the desired aesthetic appeal, functional requirements, or ease of grip. Custom surface finishes can enhance the part’s appearance, provide additional protection against wear or corrosion, or enable specific interactions with other components or equipment.

Color and Appearance:

Injection molded parts can be customized in terms of color and appearance. Colorants can be added to the material during the molding process to achieve specific shades or color combinations. This customization option is particularly useful when branding, product differentiation, or visual identification is required. Additionally, surface textures, patterns, or special effects can be incorporated into the mold design to create unique appearances or visual effects.

Secondary Operations:

Injection molded parts can undergo secondary operations to further customize or modify them according to unique industrial needs. These secondary operations can include post-molding processes such as machining, drilling, tapping, welding, heat treating, or applying coatings. These operations enable the addition of specific features or functionalities that may not be achievable through the injection molding process alone. Secondary operations provide flexibility for customization and allow for the integration of injection molded parts into complex assemblies or systems.

Tooling Modifications:

If modifications or adjustments are required for an existing injection molded part, the tooling can be modified or reconfigured to accommodate the changes. Tooling modifications can involve altering the mold design, cavity inserts, gating systems, or cooling channels. This allows for the production of modified parts without the need for creating an entirely new mold. Tooling modifications provide cost-effective options for customizing or adapting injection molded parts to meet evolving industrial needs.

Prototyping and Iterative Development:

Injection molding enables the rapid prototyping and iterative development of parts. By using 3D printing or soft tooling, prototype molds can be created to produce small quantities of custom parts for testing, validation, and refinement. This iterative development process allows for modifications and improvements to be made based on real-world feedback, ensuring that the final injection molded parts meet the unique industrial needs effectively.

Overall, injection molded parts can be customized or modified to meet unique industrial needs through design customization, material selection, surface finishes, color and appearance options, secondary operations, tooling modifications, and iterative development. The flexibility and versatility of the injection molding process make it a valuable manufacturing method for creating highly customized parts that address specific industrial requirements.

Can you describe the various post-molding processes, such as assembly or secondary operations, for injection molded parts?

Post-molding processes play a crucial role in the production of injection molded parts. These processes include assembly and secondary operations that are performed after the initial molding stage. Here’s a detailed explanation of the various post-molding processes for injection molded parts:

1. Assembly:

Assembly involves joining multiple injection molded parts together to create a finished product or sub-assembly. The assembly process can include various techniques such as mechanical fastening (screws, clips, or snaps), adhesive bonding, ultrasonic welding, heat staking, or solvent welding. Assembly ensures that the individual molded parts are securely combined to achieve the desired functionality and structural integrity of the final product.

2. Surface Finishing:

Surface finishing processes are performed to enhance the appearance, texture, and functionality of injection molded parts. Common surface finishing techniques include painting, printing (such as pad printing or screen printing), hot stamping, laser etching, or applying specialized coatings. These processes can add decorative features, branding elements, or improve the surface properties of the parts, such as scratch resistance or UV protection.

3. Machining or Trimming:

In some cases, injection molded parts may require additional machining or trimming to achieve the desired final dimensions or remove excess material. This can involve processes such as CNC milling, drilling, reaming, or turning. Machining or trimming is often necessary when tight tolerances, specific geometries, or critical functional features cannot be achieved solely through the injection molding process.

4. Welding or Joining:

Welding or joining processes are used to fuse or bond injection molded parts together. Common welding techniques for plastic parts include ultrasonic welding, hot plate welding, vibration welding, or laser welding. These processes create strong and reliable joints between the molded parts, ensuring structural integrity and functionality in the final product.

5. Insertion of Inserts:

Insertion involves placing metal or plastic inserts into the mold cavity before the injection molding process. These inserts can provide additional strength, reinforce threaded connections, or serve as mounting points for other components. Inserts can be placed manually or using automated equipment, and they become permanently embedded in the molded parts during the molding process.

6. Overmolding or Two-Shot Molding:

Overmolding or two-shot molding processes allow for the creation of injection molded parts with multiple layers or materials. In overmolding, a second material is molded over a pre-existing substrate, providing enhanced functionality, aesthetics, or grip. Two-shot molding involves injecting two different materials into different sections of the mold to create a single part with multiple colors or materials. These processes enable the integration of multiple materials or components into a single injection molded part.

7. Deflashing or Deburring:

Deflashing or deburring processes involve removing excess flash or burrs that may be present on the molded parts after the injection molding process. Flash refers to the excess material that extends beyond the parting line of the mold, while burrs are small protrusions or rough edges caused by the mold features. Deflashing or deburring ensures that the molded parts have smooth edges and surfaces, improving their appearance, functionality, and safety.

8. Inspection and Quality Control:

Inspection and quality control processes are performed to ensure that the injection molded parts meet the required specifications and quality standards. This can involve visual inspection, dimensional measurement, functional testing, or other specialized testing methods. Inspection and quality control processes help identify any defects, inconsistencies, or deviations that may require rework or rejection of the parts, ensuring that only high-quality parts are used in the final product or assembly.

9. Packaging and Labeling:

Once the post-molding processes are complete, the injection molded parts are typically packaged and labeled for storage, transportation, or distribution. Packaging can include individual part packaging, bulk packaging, or custom packaging based on specific requirements. Labeling may involve adding product identification, barcodes, or instructions for proper handling or usage.

These post-molding processes are vital in achieving the desired functionality, appearance, and quality of injection molded parts. They enable the integration of multiple components, surface finishing, dimensional accuracy, and assembly of the final products or sub-assemblies.

Can you describe the range of materials that can be used for injection molding?

Injection molding offers a wide range of materials that can be used to produce parts with diverse properties and characteristics. The choice of material depends on the specific requirements of the application, including mechanical properties, chemical resistance, thermal stability, transparency, and cost. Here’s a description of the range of materials commonly used for injection molding:

1. Thermoplastics:

Thermoplastics are the most commonly used materials in injection molding due to their versatility, ease of processing, and recyclability. Some commonly used thermoplastics include:

  • Polypropylene (PP): PP is a lightweight and flexible thermoplastic with excellent chemical resistance and low cost. It is widely used in automotive parts, packaging, consumer products, and medical devices.
  • Polyethylene (PE): PE is a versatile thermoplastic with excellent impact strength and chemical resistance. It is used in various applications, including packaging, pipes, automotive components, and toys.
  • Polystyrene (PS): PS is a rigid and transparent thermoplastic with good dimensional stability. It is commonly used in packaging, consumer goods, and disposable products.
  • Polycarbonate (PC): PC is a transparent and impact-resistant thermoplastic with high heat resistance. It finds applications in automotive parts, electronic components, and optical lenses.
  • Acrylonitrile Butadiene Styrene (ABS): ABS is a versatile thermoplastic with a good balance of strength, impact resistance, and heat resistance. It is commonly used in automotive parts, electronic enclosures, and consumer products.
  • Polyvinyl Chloride (PVC): PVC is a durable and flame-resistant thermoplastic with good chemical resistance. It is used in a wide range of applications, including construction, electrical insulation, and medical tubing.
  • Polyethylene Terephthalate (PET): PET is a strong and lightweight thermoplastic with excellent clarity and barrier properties. It is commonly used in packaging, beverage bottles, and textile fibers.

2. Engineering Plastics:

Engineering plastics offer enhanced mechanical properties, heat resistance, and dimensional stability compared to commodity thermoplastics. Some commonly used engineering plastics in injection molding include:

  • Polyamide (PA/Nylon): Nylon is a strong and durable engineering plastic with excellent wear resistance and low friction properties. It is used in automotive components, electrical connectors, and industrial applications.
  • Polycarbonate (PC): PC, mentioned earlier, is also considered an engineering plastic due to its exceptional impact resistance and high-temperature performance.
  • Polyoxymethylene (POM/Acetal): POM is a high-strength engineering plastic with low friction and excellent dimensional stability. It finds applications in gears, bearings, and precision mechanical components.
  • Polyphenylene Sulfide (PPS): PPS is a high-performance engineering plastic with excellent chemical resistance and thermal stability. It is used in electrical and electronic components, automotive parts, and industrial applications.
  • Polyetheretherketone (PEEK): PEEK is a high-performance engineering plastic with exceptional heat resistance, chemical resistance, and mechanical properties. It is commonly used in aerospace, medical, and industrial applications.

3. Thermosetting Plastics:

Thermosetting plastics undergo a chemical crosslinking process during molding, resulting in a rigid and heat-resistant material. Some commonly used thermosetting plastics in injection molding include:

  • Epoxy: Epoxy resins offer excellent chemical resistance and mechanical properties. They are commonly used in electrical components, adhesives, and coatings.
  • Phenolic: Phenolic resins are known for their excellent heat resistance and electrical insulation properties. They find applications in electrical switches, automotive parts, and consumer goods.
  • Urea-formaldehyde (UF) and Melamine-formaldehyde (MF): UF and MF resins are used for molding electrical components, kitchenware, and decorative laminates.

4. Elastomers:

Elastomers, also known as rubber-like materials, are used to produce flexible and elastic parts. They provide excellent resilience, durability, and sealing properties. Some commonly used elastomers in injection molding include:

  • Thermoplastic Elastomers (TPE): TPEs are a class of materials that combine the characteristics of rubber and plastic. They offer flexibility, good compression set, and ease of processing. TPEs find applications in automotive components, consumer products, and medical devices.
  • Silicone: Silicone elastomers provide excellent heat resistance, electrical insulation, and biocompatibility. They are commonly used in medical devices, automotive seals, and household products.
  • Styrene Butadiene Rubber (SBR): SBR is a synthetic elastomer with good abrasion resistance and low-temperature flexibility. It is used in tires, gaskets, and conveyor belts.
  • Ethylene Propylene Diene Monomer (EPDM): EPDM is a durable elastomer with excellent weather resistance and chemical resistance. It finds applications in automotive seals, weatherstripping, and roofing membranes.

5. Composites:

Injection molding can also be used to produce parts made of composite materials, which combine two or more different types of materials to achieve specific properties. Commonly used composite materials in injection molding include:

  • Glass-Fiber Reinforced Plastics (GFRP): GFRP combines glass fibers with thermoplastics or thermosetting resins to enhance mechanical strength, stiffness, and dimensional stability. It is used in automotive components, electrical enclosures, and sporting goods.
  • Carbon-Fiber Reinforced Plastics (CFRP): CFRP combines carbon fibers with thermosetting resins to produce parts with exceptional strength, stiffness, and lightweight properties. It is commonly used in aerospace, automotive, and high-performance sports equipment.
  • Metal-Filled Plastics: Metal-filled plastics incorporate metal particles or fibers into thermoplastics to achieve properties such as conductivity, electromagnetic shielding, or enhanced weight and feel. They are used in electrical connectors, automotive components, and consumer electronics.

These are just a few examples of the materials used in injection molding. There are numerous other specialized materials available, each with its own unique properties, such as flame retardancy, low friction, chemical resistance, or specific certifications for medical or food-contact applications. The selection of the material depends on the desired performance, cost considerations, and regulatory requirements of the specific application.

China Good quality Customized Cold Runner Injection Molding Plastic Molded Parts  China Good quality Customized Cold Runner Injection Molding Plastic Molded Parts
editor by CX 2024-02-17