WhatsApp: +86 18126157548     Email: kerry@alpinemold.com
Custom Plastic Injection Mold and Injection Molding Manufacturer in China

Custom Plastic Injection Mold and Injection Molding Manufacturer in China

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Engineering, tooling, and production under one roof.
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Our Core Capabilities

Alpine Mold delivers robust tooling and injection molding solutions with stable long-term production performance, clear project timelines, and proactive risk control.
Mold Design & Engineering

Mold Design & Engineering

 DFM and Moldflow analysis before tooling
 3D mold design focused on manufacturability

 Design optimization for stable molding performance

 25-person engineering team supporting complex mold projects

Injection Mold Manufacturing China

Injection Mold Manufacturing

 CNC, EDM, wire EDM and mold trials in-house
 Support rapid tooling and production tooling 

 HASCO, DME, Meusburger & MISUMI mold standards

 100+ machining and inspection equipment enable mold accuracy down to ±0.01 mm

Custom Injection Molding Manufacturer

Custom Injection Molding

30+ injection molding machines from 50–800 tons
 insert molding, overmolding and two-shot molding 
IQC, IPQC and FQC inspection throughout production
Offer secondary operations such as painting, printing, laser engraving, and assembly etc.

About Alpine Mold 

Precision injection mold tooling and injection molding services backed by engineering expertise and manufacturing excellence.
Since 2002, Alpine Mold has been a professional plastic injection mold manufacturer in Shenzhen, China, specializing in injection mold design, injection mold manufacturing, and injection molding services.  We mainly serve industries including consumer electronics, automotive, medical, security products, smart appliances, industrial equipment, and new energy applications.

With rich experience in international mold standards such as HASCO, DME, and MISUMI, Alpine Mold supports customers across North America, Europe, Australia, Brazil, Turkey, and other global markets, delivering reliable tooling solutions and stable mass production.
25+
Years Mold Experience
8,000 m² 
Factory Area
 
65+ 
Countries Served
10,000+
Mold Projects Completed

Why Choose Alpine Mold

From engineering analysis to project delivery, Alpine Mold helps you reduce manufacturing risks with reliable injection moulds and injection moulding solutions.
Injection molding services
 
1. Engineering Support Before Manufacturing

  Our engineering team provides DFM analysis and Moldflow simulation to identify potential risks such as filling issues, warpage, shrinkage, and ejection problems.

  Our experienced engineers optimize product designs, mold structures, and molding processes to improve manufacturability and reduce unnecessary trial modifications.


2. In-House Manufacturing Control

  From mold design, injection mold manufacturing, mold trials to injection molding production, key processes are completed in-house.

  With 100+ manufacturing and inspection equipment and 30+ injection molding machines, we maintain better control over manufacturing quality, project schedules, and production efficiency.

 
3. Quality Assurance & Process Control

  Precision machining processes, ZEISS CMM inspection, and in-house testing capabilities help ensure accurate mold components and consistent part dimensions.

  Our ISO 9001:2015 and IATF 16949 certified quality system covers IQC, IPQC, and FQC procedures, supported by an experienced quality team and continuous production monitoring.


4. Reliable Project Delivery & Communication

  Each project is assigned a dedicated project manager who is also an engineer as your main contact, ensuring smooth communication, timely updates, and efficient project progress.

  Standard mold projects are typically completed within 4–7 weeks depending on complexity. We provide mold trial feedback, inspection reports, and project updates to keep you informed at every stage.

Sample room

Quality Control at Alpine Mold

Plastic injection molds and injection molded parts supported by strict quality control systems.
Cooper Electrodes Inspection
Cooper Electrodes Inspection
Heat Treatment Hardness Inspection
Heat Treatment Hardness Inspection
Mold Steel Hardness Inspection
Mold Steel Hardness Inspection
Mold Core and Cavity Steel Dimension Inspection
Mold Core and Cavity Steel Dimension Inspection    
Mold Assembly Inspection
Mold Assembly Inspection
Fixture Inspection for Injection Molded Parts
Fixture Inspection for Injection Molded Parts
cmm inspection report for plastic injection parts
cmm inspection report for plastic injection parts
size inspection for custom plastic parts
size inspection for custom plastic parts
Dimension Inspection for Custom Plastic Parts
Dimension Inspection for Custom Plastic Parts
Color Inspection for Plastic Parts
Color Inspection for Plastic Parts
Height Inspection for Injection Molding Parts
Height Inspection for Injection Molding Parts
QC Inspection
QC Inspection

Quality is at the heart of everything we do at Alpine Mold. We invest in skilled people, advanced inspection equipment, and quality management systems to ensure stable production quality for our customers every time..
 

  • ISO 9001:2015 and IATF 16949 certified.
  • Dedicated quality team with 11 experienced inspectors.
  • 24-hour manufacturing cover.
  • In-house test and ZEISS CMM inspection facility.
  • Production sign-on approval, patrol inspection intervals and full run quality monitoring.
  • Tailored test and inspection activity depending on customers needs.
  • Consistently striving for 0% non-compliance and 100% customer satisfaction.

Our In-House Manufacturing Capabilities

As a China-based injection molding manufacturer, Alpine Mold keeps key manufacturing processes under one roof .

注: 建议上传图片大小690px*460px
  • Precision Mold Assembly Workshop
  • General Mold Assembly Workshop
  • CNC Machining Center
  • CNC machining center
  • Charmilles Mirror EDM Machines
  • Charmilles Wire EDM Machines
  • Two head EDM machines
  • Mold Polishing Workshop
  • Inspection Machines
  • FANUC Injection Molding Machine
  • Injection Molding Sample Room
  • Injection Mold Warehouse
 

How We Work

 
From product optimization and mold making to injection molding production, every stage is carefully controlled to ensure quality and reliability.
Injection Mold Building
DFM Analysis & Mold Design
Injection Mold Building
Injection Mold Manufacturing
Process Development & Validation
Injection Mold Trial & Validation
6-4
Injection Molding Production
Post-Processing Operations
Post-Processing Operations
 
Logistics & Customer Support
Packaging & Delivery Support
 
Our Featured Projects
Real-world projects demonstrating our expertise in injection mold making and custom injection molded parts.
Automotive Sunroof Injection Mold
 
Automotive Sunroof Injection Mold

Number of Molds: 1 set
Mold Material: P20HH
Parts Material: PP+30%GF
Lead time: 40 days
Office Chair Parts Injection Molding
 
Offer Chair Parts Injection Molding

Number of Molds: 2 sets
Mold Material: P20HH
Parts Material:  PA+30%GF
Lead Time: 40 days
Autonomous storage robot injection molded parts
 
Autonomous Storage Robot Inject Molding

Number of Molds: 1 set
Mold Material: 718H
Parts Material: ABS FR UV
Surface Finish: Texture (VDI21)
Rabbit Tunnel Injection Moulding
 
Rabbit Tunnel Injection Moulding

Number of Molds: 6 sets 
Mold Material: S136H Parts 
Material: ABS+ UV, Nylon PA66+ UV 
Surface Finish: YS20023/YS20021 Polished
TPE Overmolding for controller panel
 
Controller Panel Overmolding 

Number of Molds: 1 set
Mold Material: S136
Parts Material:  PC+TPE
Lead Time: 38 days
Diaphragm Pump Injection Molding
 
Diaphragm Pump Injection Molding

Number of Molds: 15 sets
Mold Material: P20HH
Parts Material: PPS+GF40%
Lead time: 25 days
Insect Bite Healer Injection Molding
 
Insect Bite Healer Injection Molding

Number of Molds: 6 sets
Mold Material: S136
Parts Material: PC, ABS+PC
Surface Finish: Matte and texture
Injection Molding Service for Vehicles Switch Panel

Vehicles Switch Panel Injection Molding

Number of Molds: 1 set
Mold Material: 718H
Parts Material: ABS+PC
Lead Time: 30 days
 
 
EV Car Charger Injection Molding
 
EV Car Charger Injection Molding

Number of Molds: 9 sets
Mold Material: S136
Parts Material: PC+ASA (V0)
Lead Time: 38 days

Industries We Serve

We support global customers across various industries with custom injection molds and reliable injection molding production.

Real Reviews from Real Customers

We’ve partnered with hundreds of clients worldwide, and their feedback speaks for itself. Here are some of their testimonials.
 
"I have worked with Alpine Mold on multiple switch panel projects. We provided the 3D design files, and their team handled everything from DFM, precise mold design to tooling and mass production. Their team is knowledgeable and experienced, and they consistently deliver products that meet or exceed our expectations. Alpine Mold has proven to be a professional and trustworthy injection molding partner.We highly recommend them."
 
Product Design Engineer at Siemens
 
 
 
"I want to congratulate Yuki for the great job she has done along these very important projects of 10 + 12 + 1 molds for Z***, so far. Now we have received the injected parts with very good quality, we are very pleased for this. In a month aprox, we will receive the molds (10 + 12) and we can verify the good quality we expect of the Alpine team. By sure, they are as good as the work done so far. Looking forward to develops new projects with Alpine."
 
Purchasing Director at Z*** Group
 
 
 
"I have collaborated with Alpine Mold on many injection tooling projects for automotive components. The precision and requirements for our automotive parts are extremely high, yet Alpine Mold consistently delivered molds that met our strict standards. Their expertise in complex tooling, reliable quality, and on-time delivery and great communciation make them a trusted mold partner for our global projects. I highly recommend Alpine Mold."
 
Tooling Engineer at GM
 
 

Frequently Asked Questions

Find quick answers to common questions about our injection mold making and injection molding services.

  • 1. How do I get a quote?


    To help us provide an accurate quotation as quickly as possible, please include the following information with your inquiry:
     
    1. 3D CAD files in STEP, IGS, or X-T format
    2. Material requirements, such as ABS, PP, PC, PMMA, Nylon, etc.
    3. Surface finish requirements, such as glossy, matte, textured, etc.
    4. Estimated production quantity per order, month, or year
    5. Any special requirements, such as packaging, labeling, assembly, or delivery

  • 2. When can I get the quotation?


    We usually provide a quotation within 2 business days after receiving your inquiry.
    If your project is urgent, please call us or let us know by email so that we can prioritize your quotation.

  • 3. How do you guarantee the quality of injection molds?


    We control mold quality through strict inspection and process control at every stage, from material inspection and machining to mold assembly, trial, and final validation.
     
    Our quality control includes IQC, IPQC, and FQC inspections, dimensional checks with CMM equipment, mold trial reports, and sample inspection before final approval.
     
    Only after the mold and samples meet the confirmed requirements will the mold be approved for shipment or mass production.
     
    We also provide complete project documentation for quality traceability, including:
     
    1. DFM Analysis Report
    2. Mold Flow Analysis Report
    3. 3D Mold Design Drawings
    4. Detailed Tooling Schedule & Timeline
    5. Original Steel Material Certificate
    6. Heat Treatment Hardness Certificate
    7. Full Mold Trial Reports (T1, T2, and further revisions)
    7. Dimensional Inspection Report of Molded Samples
    8. Sample Inspection Report
    9. Final Packing & Shipping Documents before delivery

  • 4. How do you guarantee the quality of mass production?


    First, when we complete the mold, we will make the samples to you to check and confirm; after you confirm the final samples, it will be the standard parts. At the beginning of mass production, we will strictly inspect the products according to the standard parts.Second, we have professional QC for each working shift, QC will check each 2 hours during mass production. Finally, before shipment, our QC will arrange spot checks.

  • 5. What’s the lead time?


    Our Mold Lead Time: Usually  4–7 weeks, depending on the part structure and mold complexity.
     
    Our Production Lead Time: Usually 1–2 weeks after sample approval, depending on the order quantity.

  • 6. What’s the payment terms and methods?


    Mold Payment: 40% deposit by T/T in advance, 30% second payment before sending out the first trial samples, and 30% mold balance after final sample approval. 
     
    Production Payment: 50% deposit in advance, and 50% balance before sending out the final goods.
     
    Payment methods: We prefer to receive payment by wire transfer  (T/T)  to our company bank account. PayPal, Western Union is also acceptable.

  • 7. How do you pack injection molds?


    We use wooden crates to pack plastic injection molds. There are three main steps:
     
    Step 1: Apply anti-rust oil to the mold surface.
    Step 2: Wrap the mold with plastic film to protect it from moisture.
    Step 3: Place the wrapped mold in a wooden crate and secure it properly to prevent movement during transportation.

  • 8. How do you pack injection molded parts?


    We normally use PE bags, bubble wrap and cartons to protect the parts during transportation. For parts with special appearance or protection requirements, we can also provide customized packaging.

  • 9. Who owns the injection mold tooling?


    The customer owns the mold because they pay for the mold development and manufacturing costs, whether the mold remains at our factory for production or is shipped to the customer.
     
    Option 1: Keep the mold at our factory for production:
    The customer owns the mold, while we store, maintain, and use it to produce parts according to the production agreement.
     
    Option 2: Ship the mold to the customer after completion:
    The customer owns the mold, and we can ship it to the customer for installation and production at their own facility.

  • 10. What kind of after-sales service do you offer?


    We provide after-sales support for both injection molds and mass-produced plastic parts.
     
    1. Mold Issues: If any mold components are damaged within two years after delivery, we can provide replacement parts free of charge. Our team will also provide technical support and repair solutions when needed.
     
    2. Mass Production Quality Issues:If you find any quality issues after receiving the parts, we will respond within 24 hours, analyze the root cause, and provide a practical solution based on the actual issue.
     
    Our goal is to solve issues quickly and minimize any impact on your production.
     
Contact With Alpine Mold Today!

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Add: Block 3A, the 6th Industrial Area, Heshuikou Village, Gongming Town, Shenzhen City, Guangdong Province, China
 
Telephone: +86 18126252427
WhatsApp: +86 18126157548
 
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