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Precision Mold & Injection Molding Manufacturer

From mold design and manufacturing to injection molding, assembly and mass production.

One-Stop Plastic Manufacturing Solutions

From DFM and precision mold making to injection molding and assembly, we provide integrated manufacturing solutions for global B2B customers.

Precision. Stability. Production-Ready.

Supporting automotive, medical, home appliance and consumer product applications with reliable mold and injection molding capabilities.

Best-selling products

  • All Products
  • Injection Molds
  • Household & Daily-Use Plastic Products
  • Two-Shot Injection Molded Products
  • Insulated Bottle Cap Injection Molded Products
  • Automotive Injection Molded Parts
  • Medical Injection Molded Products

Car Taillight Light Guide Assembly, High Transmittance Injection Lamp Accessory

This car taillight signal light guide is precision injection molded with high-transparency material. It adopts well-designed optical structure for even light transmission. Equipped with positioning posts for assembly, it features high dimensional accuracy, weather resistance and anti-aging property, used for taillight signal lamp assembly. Customization available.

Vehicle Interior Transparent Bracket, Injection Fitting Part for Auto Interior

This automotive interior accessory is a transparent injection molded frame with secondary overmolding on edges. Reinforcement ribs and built-in positioning buckles are adopted. It features good light transmission and high toughness, suitable for auto interior assembly. Customization available.

Spherical Small Home Appliance Plastic Housing, White Precision Injection Molded Enclosure

This spherical learning machine housing is integrally precision injection molded. Speaker mesh holes and functional cutouts are reserved on the side. Internal positioning posts and buckles are designed. It has smooth round surface and excellent toughness, applied for assembly of smart learning machines and early education devices. Customization available.

Inverter Complete Shell, Grey Injection Part for Industrial Equipment

This industrial inverter housing is integrally precision injection molded. Vertical heat dissipation grilles are designed on the front, with reserved assembly slots and buckles. The shell features high strength and good protection, suitable for complete industrial inverter assembly. Customization available.

Inverter Complete Shell, Grey Injection Part for Industrial Equipment

This industrial inverter housing is integrally precision injection molded. Vertical heat dissipation grilles are designed on the front, with reserved assembly slots and buckles. The shell features high strength and good protection, suitable for complete industrial inverter assembly. Customization available.

Industrial Power Tool Overmolded Handle Housing, Two-color Injection Molded Shell

This overmolded handle housing is for power tools, adopting secondary overmolding technology. Hard plastic body combined with anti-slip soft rubber layer, dual-color integrated molding. Ergonomic contour provides anti-slip and shock-absorbing grip. Pre-reserved mounting holes, high structural strength, suitable for assembly of various handheld power tools.

Industrial Terminal Identification Accessory

This plastic marker strip is specially used for industrial control terminal blocks. Precisely integrally injection molded with array slot design. It is applied for number marking of wiring terminals to distinguish circuits and facilitate maintenance identification, suitable for terminal block assembly.

Transparent Protective Lid for Wafer Box

This is a transparent protective lid matching wafer storage box. It is integrally injection molded with high-transparent PC material, built-in positioning buckles for precise fitting with wafer box. It provides dustproof protection for internal wafers, serving as a precision accessory for semiconductor wafer storage and transportation.

Spherical Small Home Appliance Plastic Housing, White Precision Injection Molded Enclosure

This spherical learning machine housing is integrally precision injection molded. Speaker mesh holes and functional cutouts are reserved on the side. Internal positioning posts and buckles are designed. It has smooth round surface and excellent toughness, applied for assembly of smart learning machines and early education devices. Customization available.

Inverter Complete Shell, Grey Injection Part for Industrial Equipment

This industrial inverter housing is integrally precision injection molded. Vertical heat dissipation grilles are designed on the front, with reserved assembly slots and buckles. The shell features high strength and good protection, suitable for complete industrial inverter assembly. Customization available.

Router Plastic Antenna, External Injection Antenna for Wireless Router

This router antenna is a precision injection molded plastic antenna. It can be rotated and bent at multiple angles, with smooth surface and solid structure. Suitable for signal receiving and transmitting of wireless routers, for network communication equipment assembly. Customization available.

1. Router Top Cover Panel, Plastic Housing Accessory for Network Device

This router top panel is integrally precision injection molded, covered with dense heat dissipation micro holes and printed function marks. Side integrated buckles ensure stable assembly with fine surface texture, used for router upper housing assembly. Customization available.

Brushless Cordless Drill Overmolded Handle Shell, Two-color Injection Molding Housing

This drill overmolded housing adopts secondary overmolding technology. The hard plastic body is combined with soft anti-slip rubber surface for comfortable and non-slip grip. Integrally injection molded with stable structure. It fits brushless lithium drills, serving as plastic structural parts for power tool assembly, and customization is available.

Industrial Power Tool Overmolded Handle Housing, Two-color Injection Molded Shell

This overmolded handle housing is for power tools, adopting secondary overmolding technology. Hard plastic body combined with anti-slip soft rubber layer, dual-color integrated molding. Ergonomic contour provides anti-slip and shock-absorbing grip. Pre-reserved mounting holes, high structural strength, suitable for assembly of various handheld power tools.

Dual Color Injection Molded Cup Lid

This cup lid is integrally formed by dual-color injection molding. It features a sturdy structure and smooth sliding opening. Leak-proof sealing design makes it an ideal replacement accessory compatible with multiple water cups.

Sip Tumbler Lid Two-shot Injection Integrated Accessory

This tumbler lid is made by two-color integrated injection molding. The colored middle part and clear outer ring are formed in one molding process for solid structure. Well sealed with excellent leakproof performance. It works as replacement accessory for compatible tumblers.

Insulated Water Bottle Handle Accessory

This insulated bottle handle is integrally injection molded. It fits insulated bottles of matching size. Easy to install, stable and labor-saving to grip, serving as a matching replacement accessory for thermoses.

Flip Top Bottle Lid with Carry Loop

This sports water bottle lid comes with a foldable carry loop. It adopts flip-top one-hand opening design. Built-in sealing ring delivers reliable leak-proof performance. Durable structure, perfect replacement part for sports water bottles.

Dual Color Injection Molded Cup Lid

This cup lid is integrally formed by dual-color injection molding. It features a sturdy structure and smooth sliding opening. Leak-proof sealing design makes it an ideal replacement accessory compatible with multiple water cups.

Sip Tumbler Lid Two-shot Injection Integrated Accessory

This tumbler lid is made by two-color integrated injection molding. The colored middle part and clear outer ring are formed in one molding process for solid structure. Well sealed with excellent leakproof performance. It works as replacement accessory for compatible tumblers.

Car Taillight Light Guide Assembly, High Transmittance Injection Lamp Accessory

This car taillight signal light guide is precision injection molded with high-transparency material. It adopts well-designed optical structure for even light transmission. Equipped with positioning posts for assembly, it features high dimensional accuracy, weather resistance and anti-aging property, used for taillight signal lamp assembly. Customization available.

Vehicle Interior Transparent Bracket, Injection Fitting Part for Auto Interior

This automotive interior accessory is a transparent injection molded frame with secondary overmolding on edges. Reinforcement ribs and built-in positioning buckles are adopted. It features good light transmission and high toughness, suitable for auto interior assembly. Customization available.

Car Taillight Assembly Base, Black Injection Molded Lamp Frame Accessory

This part is the internal plastic support base for automobile taillight. It is integrally precision injection molded with reserved buckles and positioning posts for accurate assembly. Featuring high structural strength, temperature resistance and anti-aging property, it is used for taillight assembly, customization available.

Car Door Ambient Light Plastic Frame, Injection Molded Structural Part for Vehicle Door Lamp

This car door ambient light frame is precision injection molded with black and white two-color structure. Equipped with built-in buckles for tight fitting. It has great toughness, temperature resistance and anti-aging performance, used for door ambient light assembly. Customization available.

Automotive Interior Trim Frame, Matte Silver Injection Molded Car Interior Part

This automotive interior part is precision injection molded with matte silver finish. Integrated buckle structure ensures perfect fitting. It features premium appearance, wear and scratch resistance for car center console assembly, customization available.

Car Ambient Light Light Guide Strip, Auto Interior Decor Light Structural Part

This is a decorative light bar for automobile interior, integrally injection molded with high-transparency material. It delivers excellent light guiding performance. The surface texture ensures even light output. Precise dimensions fit car ambient light assembly and enhance interior decorative texture.

Gun Handle Housing for Ultrasonic Cutting Instrument, Medical Plastic Accessories

This full set of plastic structural parts is for gun-type medical ultrasonic knife. The hard plastic main body is equipped with secondary overmolded soft grip, integrally injection molded. Ergonomic gun-style handle for comfortable holding. All accessories have precise dimensions for full assembly of ultrasonic surgical instruments.

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未标题-1

The client submitted 3D drawings to Kunshan Maifeng Precision for this electrical control housing. Featuring complex internal structures, multiple cut‑out windows and clustered button positions, the part has uneven wall thickness. Direct mold‑building would easily cause molding defects such as short shot, sink marks, weld lines and air traps. We launched a complete DFM review to identify hidden risks before mold machining. Made of PC/ABS alloy, this mold requires 500K shots service life with 1.2344 & H13 tool steel for a 300T three‑plate mold. Simulation of the initial gate design revealed high pressure loss and insufficient filling at button zones. Our engineers revised the gating strategy: kept two overlap gates and added six individual pin‑gates for each button to balance melt flow. Appearance risks caused by gate vestige and surface features were discussed and confirmed with the customer. During DFM review, undercuts were found on ribs at both sides which would cause demolding interference. We proposed draft optimization by shifting relevant geometry onto the core side, with a controlled 0.2 mm step‑off. Revision illustrations were provided for customer appearance approval. Full wall‑thickness inspection was carried out to spot sink‑mark risks. Custom ejection layout including extra ejectors for button tips was designed to avoid whitening and deformation. With Moldflow simulation for filling pattern, weld lines, air traps and sink marks, we iterated gate layouts to move weld lines away from critical cosmetic surfaces. Venting structure was designed for detected air‑trap zones to keep sink marks within production‑tolerable range. We also reviewed parting line, mold layout, cooling circuit, material marking and date‑code features. Most molding risks were resolved in advance via this comprehensive DFM report instead of costly post‑trial mold revisions. Thorough pre‑project technical review lays a solid foundation for mold manufacturing, trial runs and stable mass production, saving customer cycle time and modification costs.

Automotive two-color injection molded parts

For an automotive interior systems client, their A-pillar acoustic and sealing component faced persistent manufacturing challenges that affected both performance and production efficiency. The original single-shot molded design failed to meet the OEM’s requirements for cavity filling and NVH (noise, vibration, harshness) reduction. The client’s previous supplier struggled with inconsistent bonding between the hard structural substrate and the soft foam layer, leading to delamination during assembly. Additionally, the manual post-foaming process was slow, labor-intensive, and resulted in uneven expansion, causing fit issues and high rejection rates. After evaluating several specialized mold makers, the client chose our team for our proven expertise in complex dual-shot and multi-material molding. We engineered a custom two-shot mold with an integrated rotating core system. The process first molds the rigid black structural frame, then the mold indexes to a second station where the thermally reactive foam material is injected. This eliminates secondary operations entirely. We also optimized the mold’s venting and heating control to ensure uniform foam expansion when the part is installed in the high-temperature paint shop. The final component delivers reliable acoustic sealing, reduces assembly labor, and meets the strict dimensional and performance standards of the automotive OEM.

Nasal Irrigator Full-Set Injection Molding & Assembly Solution

For a home respiratory care device client, their portable nasal irrigator line faced persistent production issues that affected both product performance and user experience. The original manufacturing process struggled with inconsistent fit between the transparent water tank, valve components and main housing, leading to occasional leaks during use. Additionally, unstable dimensional accuracy in the internal flow control parts caused uneven water pressure, while surface finish inconsistencies on the contact surfaces raised hygiene concerns. These problems resulted in high rejection rates, slow production cycles, and growing user complaints about reliability. After evaluating multiple mold and injection molding suppliers, the client selected our team based on our proven experience with medical-grade plastic components and cleanroom production capabilities. We started with a full DFM review, analyzing every part in the assembly to identify root causes of the fit and flow issues. Our team then optimized the mold structure, gate design and cooling systems to improve dimensional stability, while refining surface treatment and production controls to meet the required cleanliness standards. With these targeted improvements, we eliminated the leakage and flow inconsistency issues entirely, significantly boosted production yield, and delivered components that consistently matched the client’s strict specifications. The final nasal irrigator now operates reliably with consistent water pressure and zero leaks, meeting the client’s requirements for both clinical safety and everyday user experience.

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About Us

To grow into a top global mold & injection molding supplier

Kunshan Maifeng Precision Industry Co., Ltd. Invested with 35 million RMB, our 5,000㎡ self-owned factory is fitted with Class 10,000/100,000 cleanrooms. We are equipped with 36 single/dual-color injection molding machines, over 50 mold processing devices and a 100+ professional team.Backed by a 2008-founded parent company, we offer one-stop solutions from product design, mold making, injection molding to assembly. We deliver customized B2B services for global clients. Our Vision To grow into a top global mold & injection molding supplier, specializing in differentiated custom parts. We focus on structural development, streamlined production and consistent quality supply.

  • Full-process one-stop service
  • Four mature product lines
  • Authoritative industrial certifications
  • High-standard dust-free workshops
  • Complete supporting processes
  • Multi-industry customization experience

5000m²+

Workshop

100

Production Teams

10000

Clean Room

15

Years Molding Experiences

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