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Plastic Injection Molding

KYLT as a precision plastic injection molding parts supplier and manufacturer, provide all kinds of custom plastic parts molding services. From plastic molds making to plastic parts production, we offer "One-stop" services. 
Availability:
  • Plastinc injection molding

  • OEM, ODM

KYLT- Plastic Injection Molding Service

nylon injection molding part

What is plastic injection molding?

Plastic injection molding is a manufacturing process that injects molten plastic to mold cavities to get final production-grade thermoplastic parts.


Injection molding has revolutionized the manufacturing industry, enabling the production of complex and intricate parts with remarkable precision and efficiency. This technique involves injecting molten material into a mold cavity, allowing it to cool and solidify, resulting in the formation of the desired product.


The versatility of injection molding has made it an integral part of various industries, including automotive, medical, consumer goods, and electronics. From small-scale components to large structural parts, injection molding offers unmatched capabilities in terms of design freedom, cost-effectiveness, and speed.


KYLT Injection Molding Service for Custom Parts

KYLT can help you design and manufacture plastic injection toolings or molds for production runs. Full injection molding capabilities including insert molding, over-molding, and internal/external threads are available.

automotive part by plastic injection molding

Plastic automotive injection part

plastic injection molded part

Plastic injection molded part

plastic molded part

Plastic molded part

desiccant cap closure by plastic injection moulding

Desiccant cap closure

ABS injection molding cosmetic bottle shell

ABS cosmetic bottle shell

the custom plastic moulding part

Custom plastic moulding part

To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com



Benefits of Injection Molding Service

Injection molding service offers numerous benefits that have contributed to its widespread adoption across industries. Let’s explore some of these advantages in detail:


  • Cost-Effectiveness:

Injection molding allows for mass production of parts, which significantly reduces the per-unit cost. With the ability to produce high volumes efficiently, businesses can enjoy economies of scale and minimize production costs.


  • Design Flexibility:

The design freedom provided by injection molding is unparalleled. Complex geometries, intricate details, and undercuts can be easily achieved with this process, giving manufacturers the freedom to create innovative and aesthetically pleasing products.


  • High Precision:

Injection molding offers exceptional precision and repeatability, ensuring consistent quality in every part produced. The use of advanced automation and robotics further enhances accuracy, minimizing errors and variations in the manufacturing process.


  • Fast Turnaround:

The speed of injection molding is unmatched compared to traditional manufacturing methods. With rapid cycle times, manufacturers can produce a large number of parts quickly, meeting tight deadlines and satisfying market demands.


  • Material Versatility:

Injection molding accommodates a wide range of materials, including plastics, metals, elastomers, and composites. This versatility allows manufacturers to select the most suitable material for their specific application, considering factors such as strength, durability, and chemical resistance.


  • Reduced Waste:

Injection molding generates minimal waste compared to other manufacturing processes. The excess material can often be recycled and reused, promoting sustainability and reducing environmental impact.


Key Components of the Injection Molding Process

To better understand the intricacies of injection molding, let’s examine the key components and stages involved in this manufacturing process:


  • MOLD DESIGN AND TOOLING

Creating a mold that meets the desired specifications is a crucial step in injection molding. Skilled engineers and designers utilize computer-aided design (CAD) software to develop precise mold designs, taking into account factors such as part geometry, material flow, cooling channels, and ejection mechanisms.

Once the mold design is finalized, toolmakers use high-precision machining techniques to fabricate the mold. The mold consists of two halves, the cavity and the core, which are precision-machined to create the desired shape and dimensions of the final product.


  • MATERIAL SELECTION AND PREPARATION

The choice of material plays a vital role in injection molding. The selection depends on factors such as the desired properties of the final product, environmental conditions, and cost considerations. Common materials used in injection molding include thermoplastics, thermosetting plastics, and elastomers.

Before injection, the material undergoes a preparation process, where it is melted and homogenized. This molten material is then injected into the mold cavity under high pressure.


Plastic Injection Molding Processes:

The injection molding process consists of several stages that ensure the successful creation of high-quality parts. Let’s explore each step in detail:


  • Clamping of plastic injection mold:

    The first step in the injection molding process is clamping. The mold halves are securely closed and held together by a clamping unit. This unit applies sufficient force to keep the mold closed during injection and cooling.


  • Injection of motlen plastic material:

    Once the mold is securely clamped, the molten material is injected into the mold cavity through a nozzle. The material is injected under high pressure to ensure complete filling of the mold and to minimize any defects or air pockets.



  • Plastic material cooling in mold cavities:


    After the mold is filled with molten material, the cooling process begins. Cooling channels within the mold help dissipate heat and solidify the material. The cooling time is determined by factors such as material properties, part thickness, and complexity.


  • Injection mold opening and ejection:

    Once the material has solidified, the mold is opened, and the part is ejected. Ejection pins or robotic arms assist in removing the part from the mold. The mold then closes again, preparing for the next injection cycle.


  • Post-Processing of plastic parts:

    Depending on the specific requirements of the part, post-processing operations such as trimming, deburring, and surface finishing may be necessary. These operations ensure that the final part meets the desired specifications and quality standards.


Applications of Injection Molding

Injection molding finds applications in a wide range of industries and product categories. Here are some notable areas where injection molding is commonly used:


  • Automotive plastic injection molding parts:

Injection molding plays a crucial role in the automotive industry, enabling the production of interior components, exterior parts, and under-the-hood components. From dashboards and door panels to bumpers and engine covers, injection molding delivers durable and aesthetically pleasing automotive parts.


plastic-auto-headlight gear box assembly

Plastic auto headlight gear box assembly


The photo shows some plastic auto headlight gear parts and gearbox assemblies, made of Nylon+Glass Fiber. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Medical plastic injection molded parts:

The medical industry relies heavily on injection molding for the production of precision medical devices, surgical instruments, and disposable products. The ability to meet strict quality standards, produce complex geometries and ensure biocompatibility makes injection molding ideal for medical applications.


Disposable Suction Irrigation Device body by plastic injection molding

Disposable Suction Irrigation Device body by plastic injection molding


The photo shows a Disposable Suction Irrigation Device body by plastic injection molding, made of PP material. Our plastic injection molding engineer is experienced in many kinds of medical plastic parts mold making and manufacturing over 20 years. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com


  • Consumer goods by plastic injection molding:

Injection molding is widely employed in the production of consumer goods such as household appliances, electronic enclosures, toys, and packaging. Its ability to mass-produce intricate and functional designs at a low cost makes it a preferred choice for consumer goods manufacturers.


customized plastic injection molding parts for chair

customized plastic injection molding parts for chair


The photo shows chair spare parts by plastic injection molding. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Electronics plastic molded parts:

The electronics industry benefits from injection molding for the manufacturing of electronic housings, connectors, and intricate parts. The high precision and repeatability of injection molding ensure the proper functioning and protection of electronic components.


Plastic Moulded Mobile Charger Case

Plastic Moulded Mobile Charger Case


The photo shows Electronic Plastic Casing Enclosure Box for Adapter, and Mobilephone Laptop charger by plastic injection molding. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Industrial Equipment plastic components:

Injection molding is utilized in the production of industrial equipment components such as gears, valves, and machine parts. The durability, strength, and dimensional accuracy offered by injection molding make it suitable for demanding industrial applications.


Plastic axle holder

Plastic axle holder


The photo shows the axle holder of machinery by plastic injection molding, made of Nylon + Glass fiber. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Cosmetics plastic injection parts:

Injection molding enables the production of cosmetic packaging, including bottles, jars, and caps. The process allows for intricate designs, branding elements, and customization, meeting the aesthetic and functional requirements of the cosmetics industry.


plastic injection molded cosmetic packaging with UV Vacuum Metallization Coating_副本

Cosmetic bottle cap


The photo shows a cosmetic bottle cap by plastic injection molding, made of PS + ABS, surface with color UV vacuum metallization coating. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com



  • Furniture parts by plastic molding:

Injection molding is employed in the furniture industry for the production of chair components, table legs, and other structural parts. The process provides durability, strength, and design versatility to create aesthetically pleasing and functional furniture pieces.


chair connect part by plastic injection molding

Chair connect part by plastic injection molding


The photo shows a connected part of a chair, which is used to connect different chair spare parts, made of PA66. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Sport plastic parts:

Injection molding plays a vital role in the production of sports equipment such as helmets, protective gear, handles, and grips. The process allows for the creation of lightweight yet durable components that meet the performance demands of athletes.


  • Plastic Toys:

Injection molding is the go-to manufacturing method for producing plastic toys. The process enables the creation of intricate designs, vibrant colors, and safe, child-friendly products that comply with stringent toy safety regulations.


  • Electrical Components by plastic injection:

Injection molding is widely used in the production of electrical components, including connectors, housings, and switches. The process ensures precise dimensions, electrical insulation, and resistance to various environmental factors.


electrical control panel box cover by plastic molding

Electrical control panel box cover by plastic molding


The photo shows an electrical control panel box sheel by plastic molding. 


To get a FREE quotation of your plastic molding products price, please Email us: cnkylt@aliyun.com




  • Pet Products:

Injection molding is utilized in the production of pet products such as bowls, toys, and accessories. The process enables the creation of durable, non-toxic, and safe products for pets, catering to their specific needs and preferences.



  • Promotional Items:

Injection molding allows for the mass production of promotional items such as keychains, pens, and branded giveaways. The process ensures consistent quality, cost-effectiveness, and the ability to incorporate branding elements.



  • Industrial Packaging:

Injection molding is employed in the production of industrial packaging solutions, including pallets, crates, and containers. The process provides strength, durability, and stackability to safely transport and store industrial goods.


To get a FREE quotation of your plastic injection molds and plastic molding products price, please Email us: cnkylt@aliyun.com


Injection Molding Materials:

1. RIGID PLASTIC TYPES:

ABS
Common thermoplastic with high impact resistance, low cost & low density. Vulnerable to solvents.
Acetal POM
Engineering thermoplastic with high strength, stiffness & moisture resistance, and self-lubricating properties. Relatively prone to warping.
Acrylic (PMMA)
UV-resistant plastic with good abrasion resistance, stiffness and hardness.
High-Density Polyethylene (HDPE)
Excellent strength-to-weight ratio, impact and weather resistant.
Nylon 6 & Nylon 66
Engineering thermoplastic with excellent mechanical properties and high chemical & abrasion resistance. Susceptible to moisture. Nylon 66 is stronger than Nylon 6
PEEK
High-performance engineering thermoplastic with excellent strength and thermal & chemical resistance. Used to replace metal parts.
Polycarbonate(PC)
The plastic with the highest impact strength. High thermal resistance, weather resistance & toughness. Can be colored or transparent.
Polypropylene(PP)
The most common Injection molding plastic. Excellent chemical resistance. Food-safe grades are available. Not suitable for mechanical applications.
Polyvinyl chloride (PVC)
Light-weight plastic with good mechanical strength and abrasion resistance. Generally used in building and construction applications.
PBT
PC-PBT
PPE-PS
PPS
PSU
PEI


2. FLEXIBLE PLASTIC TYPES:

Low-Density Polyethylene (LDPE)

PC-ABS
Blend of two thermoplastics resulting in high impact strength, excellent thermal stability, and high stiffness. Vulnerable to solvents.
Polyethylene(PE)
 Lightweight thermoplastic with good impact strength & weather resistance. Suitable for outdoor applications.
Polystyrene(PS)
The Injection molding plastic with the lowest cost. Food-safe grades available. Not suitable for mechanical applications.
PET


3. RUBBER-LIKE PLASTIC TYPES:

TPE
TPV


INJECTION MOLDING WITH ADDITIVES AND FIBERS

Colorants
Used to color plastics.
Carbon fibers
Increase the strength, toughness, and rigidity of the material at the expense of making the material more brittle.
Glass fibers
Increase the strength, toughness, and rigidity of the material at the expense of making the material more brittle. It is more flexible than carbon fibers.
Flame retardants
Prevent ignition and inhibits the spread of fire.
Plasticizes
Increase flexibility and promotes plasticity, reducing the brittleness of the material.


PLASTIC INJECTION MOLDING PARTS SURFACE FINISHES

Glossy
Semi-gloss
Matte
Textured finish
Machined finish
Painting
Printing
Silk screen printing
Pad printing
UV coating…


More information about KYLT Plastic Molding Services, Plastic injection molds making Services, Please contact: cnkylt@aliyun.com +008615195010186



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