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Capabilities of Injection Molding Services​
Our injection molding services offer precision and versatility, capable of producing both small prototypes and large production runs with a wide range of materials and tight tolerances.

  • Injection Mold Tooling

    Create high-performance molds with our injection tooling and advanced CNC machines for consistent quality and precision.

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  • Plastic Injection Molding

    Achieve precise parts with tight tolerances using our advanced plastic injection molding service for consistent quality in high-volume production.

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  • Overmolding

    Overmolding combines materials for improved performance or aesthetics, offering features like better grip or protection.

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  • Insert Molding

    Insert molding embeds metal or components into plastic, ideal for complex assemblies and reducing post-production integration of fasteners, bushings, or electronics.

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Why Choose Us
Our Injection Molding Factory
Our injection molding factory uses advanced technology to produce high-quality, precise parts for various applications.
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Our Available Materials for Injection Molding Services​
  • Acrylonitrile Butadiene Styrene (ABS)
  • Polypropylene (PP)
  • Polyethylene (PE)
  • Polycarbonate (PC)
  • Nylon (Polyamide, PA)
  • Polystyrene (PS)
  • Polyethylene Terephthalate (PET)

Acrylonitrile Butadiene Styrene (ABS)

ABS is known for its toughness, impact resistance, and strength. It is ideal for durable products like automotive parts, electronics, and consumer goods. Its ability to be easily molded and polished makes it versatile.

Color: Various shades, typically white, black, or beige

Surface Finish: Matte or glossy; smooth, easily polished

Price: Moderate; great for high-volume production

Build Time: Fast due to easy flow during injection

Polypropylene (PP)

Polypropylene offers outstanding flexibility and chemical resistance, making it perfect for components exposed to harsh environments like automotive parts and chemical containers. Its durability ensures long-lasting performance under stress and exposure to chemicals.

Color: Naturally milky or translucent, color-matching available

Surface: Smooth, flexible; resistant to chemicals

Price: $$

Build Time: 7-12 business days

Steel

A strong and versatile material with high durability, steel is widely used in industrial, automotive, and structural applications.

Color: Silver-gray

Surface Finish: Polishing, brushing, passivation, black oxide coating, zinc plating, nickel plating, powder coating, electrophoretic coating, etc.

Price: Low cost; high-volume production material

Build Time:Fast, thanks to its low melting point

Polyethylene (PE)

PE is highly durable, offering excellent moisture resistance and impact strength. It is commonly used in piping, packaging, and containers due to its toughness, flexibility, and ability to withstand outdoor conditions without breaking down.

Color: Opaque, available in various colors

Surface Finish: Soft, waxy feel; smooth or semi-textured

Price: Low; ideal for large production runs

Build Time: Quick due to low viscosity

Polycarbonate (PC)

Polycarbonate provides exceptional clarity, toughness, and resistance to impact, making it ideal for protective gear, transparent enclosures, and optical lenses. Its ability to maintain optical quality even under stress makes it a favorite in high-performance applications.

Color: Naturally transparent, can be color-tinted

Surface Finish: High-gloss or matte; easily polished for clarity

Price: Higher due to strength and optical qualities

Build Time: Moderate due to higher melt temperature

Nylon (Polyamide, PA)

Nylon is prized for its excellent wear resistance, tensile strength, and low friction properties. It is widely used in mechanical parts such as gears, bearings, and bushings where high durability and abrasion resistance are essential.

Color: Off-white or milky; can be dyed

Surface Finish: Smooth, glossy; highly abrasion-resistant

Price: Moderate; varies with reinforcement

Build Time: Moderate; high-temperature required

Polystyrene (PS)

Polystyrene is lightweight, rigid, and economical, making it ideal for disposable products, packaging, and casings. It is also widely used in insulating applications due to its excellent thermal properties and ease of molding into complex shapes.

Color: Clear, white, or color-matched

Surface Finish:Smooth, rigid, with slight sheen

Price: Low; one of the most affordable plastics

Build Time:Fast due to low melting temperature

Polyethylene Terephthalate (PET)

PET combines strength, moisture resistance, and durability, making it the go-to material for packaging, especially in the food and beverage industry. Its clarity and barrier properties also make it a popular choice for bottles and transparent containers.

Color: Transparent; can be opaque with colorants

Surface Finish: Smooth, glossy; moisture-resistant

Price: Moderate; cost-effective for specific uses

Build Time:Quick, thanks to superior flow properties

Injection Molding Surface Finishes (SPI Finish)
Our injection molding finishes ensure your product has the right texture, from high-gloss to matte or textured surfaces, enhancing both appearance and functionality.

A-Finishes (High Gloss/Polished)

Finish Description
A-1 A-1 Mirror finish, highly polished (diamond buffing
A-2 A-2 High gloss, smooth finish (diamond buffing)
A-3 A-3 Semi-gloss, smooth finish (diamond buffing)
B-1 B-1 Fine texture, medium polish (#600 grit sandpaper)
B-2 B-2 Medium texture, semi-gloss finish (#400 grit sandpaper)
B-3 B-3 Coarse texture, semi-gloss finish (#320 grit sandpaper)
C-1 C-1 Fine matte finish (#600 grit stone)
C-2 C-2 Medium matte finish (#400 grit stone)
C-3 C-3 Coarse matte finish (#320 grit stone)
D-1 D-1 Fine bead blast texture
D-2 D-2 Medium bead blast texture
D-3 D-3 Coarse bead blast texture
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Our Injection Molding Factory
Our injection molding factory uses advanced technology to produce high-quality, precise parts for various applications.
Our Injection Molding Equipment
Equipment Specification Quantity
Bochuang BORCHE Injection Molding Machine 55T 2 units
Bochuang BORCHE Injection Molding Machine 120T 3 units
Bochuang BORCHE Injection Molding Machine 200T 4 units
Bochuang BORCHE Injection Molding Machine (Dual Color) 200T 2 units
Bochuang BORCHE Injection Molding Machine 400T 3 units
Bochuang BORCHE Injection Molding Machine 800T 2 units
Bochuang BORCHE Injection Molding Machine 1000T 2 units
Hansha HE180 Dual-Spark Machine 3000×1100×900 3 units
Hansha HE180 Dual-Spark Machine 2000×1300×1100 2 units
Hansha HE180 1600×900×700 1 unit
Baofeng 2016 2000×1600×900 2 units
Baofeng 1613 1600×1300×900 5 units
Tai Zhen 1380 1300×800×750 5 units
Tai Zhen 1168 1100×680×750 6 units
Zhongjie 1200 (Deep Hole Drilling) 1200×1000×1100 2 units
Hongji 1600×1200×1300 2 units
Special Wire Cutting 1000×800 3 units
Special Wire Cutting 630×500 2 units
Special Wire Cutting 500×400 3 units
 
Injection Molding Capabilities​
Delivering high-precision and efficient production—our injection molding capabilities ensure consistent, high-quality parts for diverse applications.
Service Details
Lead Time It starts in 7 business days, with quick quotes and feedback on how to design for manufacturing (DFM).
Production Options Both domestic and international
Materials A wide range of plastics available, including custom sourcing and matching; refer to the materials list below.
Machines Available Single, multi-cavity, and family molds; press tonnage ranging from 50 to over 3,700; automated side actions or manual core loading.
Inspection and Certification Options Includes IS0 9001, IS0 13485, IS0 16949, ISO 14001, and D-U-N-S®, LC, CE, EMC, RoHS, PaHS, UL/ETL, SAA, PSE Customer-owned molds with maintenance services included.
Tool Ownership Customer-owned molds with maintenance services included.
Mold Cavity Tolerances ±0.005" for mold machining, plus an additional ±0.002" per inch to account for shrinkage.
Part to Part Repeatability ±0.004" or tighter.
Critical Feature Tolerances Tighter tolerances are available upon request but may increase tooling costs due to extra sampling and refinement. LC Proto will mill critical features to a steel-safe condition.
Available Mold Types Steel and aluminum; production grades vary from Class 105 (prototype mold) to Class 101 (high-production mold). LC Proto typically manufactures Class 104, 103, and 102 molds.
How to Work with Our Injection Moulding Services
Streamline your project with our easy four-step process! Upload your CAD design, receive a quote, confirm your order, and watch as we bring your vision to life with precision injection molding.
FAQs
  • What is the hourly rate for injection molding?
    Injection molding hourly rates typically range from $20 to $150, depending on part complexity and machine type.
  • How long does it take to produce injection-molded parts?
    Injection molding typically takes 2-8 weeks. But LC Proto can basically guarantee completion within a week.
    Other factors that can alter the production time include the parts design complexity, size, injection service provider capabilities, and the production volume.
  • What is cheaper than injection molding?
    3D printing, vacuum casting, and CNC machining can be cheaper alternatives for low-volume or prototype parts.
  • What is the cost of injection molding?
    LC Proto offers a injection molding services at a competitive price. However, you need to consider factors like mold complexity, material selection, production capability, and production volume during budgeting. The production volume is a very important factor to consider because the higher the number of parts produced the lower the cost per unit part.
  • How much does injection molding cost per part?
    Injection molding costs per part range from a few cents to several dollars, depending on factors like material, complexity, and production volume.
  • What is the lifespan of an injection mold?
    The injection mold longevity depends on the material used in making it.
    There are two common materials: steel and aluminum. Steel has a higher longevity and a single steel mold can produce thousands to millions of parts hence its use in high volume production. On the other hand, aluminum molds are less durable and suitable for hundreds to thousand runs.
  • What are the advantages of injection molding?
    Injection molding has many advantages but the one that stand out the most is the support for mass production of parts. This in turn reduces the cost of production due to the lower cost per unit part as production increases.
    Additionally, it is compatible with parts with complex geometries, providing consistency during production.
  • What is the minimum order quantity for injection molding?
    LC Proto has no minimum order requirement. We value every designer and engineer who invests in their dreams and ideas.
  • What are common defects in injection molding?
    Common defects you can encounter during injection molding include the following:
    _Warping
    _Sink marks
    _Flashes
    _Short shots.
    These injection molding defects can occur due to improper mold design, wrong material choice, wrong tooling, or the use of the wrong injection molding technique
  • Can injection molding accommodate design changes after mold creation?
    Yes, it is possible to accommodate some design changes after mold creation. However, this will come at an additional cost.
    Depending on the changes required, it might need us to make a new mold.
    Because it can lead to wastage of resources, ensure you communicate with us efficiently to reduce the need for changes and the associated cost.
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