China Injection Mold Factory for Washing Machine & Air Conditioner Components - Top Suppliers of High-Quality Molds
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Application | Washing machine, air conditioner components |
| Mold Type | Single-cavity / multi-cavity injection mold |
| Mold Size | Up to 3,200 × 1,800 × 1,600mm |
| Mold Steel | S136, 718H, P20 (per requirement) |
| Cavity Layout | Single-cavity to multi-cavity |
| Surface Finish | Automotive-grade to standard appliance finish |
| Expected Mold Life | 100,000 – 1,000,000+ shots |
| Tolerance | ±0.01mm |
| Gate System | Hot runner, submarine gate, side gate |
| Quality Documentation | FAI report, CMM report, material certificate |
Technical Process
Step 1: Inquiry & Large-Component Drawing Review
Customer submits large-format home appliance component drawings (washing machine drum components, air conditioner housings, etc.). Jinlong reviews design for large-component manufacturability and provides a quotation within 3 business days.
Step 2: Structural DFM for Large Components
Jinlong conducts a structural-focused DFM analysis — reviewing thick-section areas for sink mark control, rib design for warpage prevention, large-surface flatness requirements, and cooling channel optimization for large mold sizes.
Step 3: Large-Format Mold Design
Mold designs developed for large-component production using SolidWorks, Pro/ENGINEER, UG, or CATIA. Special attention to cooling channel layout for uniform heat dissipation across large cavities, ejection system design for large surface areas, and hot runner manifold sizing for proper flow distribution. Designs submitted for approval.
Step 4: Large-Capacity Precision Machining
Molds machined using Jinlong's large-format CNC equipment — capable of machining cavity and core blocks up to 3,200 × 1,800 × 1,600mm. High-speed machining for large flat surfaces, EDM for intricate features, and precision grinding for critical sealing and parting surfaces.
Step 5: Large-Tonnage Trial & High-Volume Qualification
Mold trials conducted on Jinlong's large-tonnage injection machines (matching component size requirements). Samples evaluated for large-surface flatness, warp control, cosmetic quality on visible surfaces, and dimensional compliance. Trial samples packaged and submitted for customer approval.
Step 6: Production Qualification & Delivery
Upon sample approval, mold accepted for mass production qualification. Documentation includes material certificates for large mold steel blocks, cooling manifold specifications, and assembly drawings. Mold shipped with full documentation package.
Step 7: Volume Production Support
Long-term support for high-volume production runs, spare large-format components, and engineering modifications for design updates.
Customization Capabilities
| Category | Options |
|---|---|
| Mold Steel | S136, 718H, P20, SKD11 |
| Cavity Layout | Single-cavity, multi-cavity for high-volume production |
| Surface Finish | Class-A automotive-grade to standard appliance finish |
| Gate System | Hot runner, submarine gate, side gate, direct gate |
| Cooling | Standard cooling, high-efficiency channels |
| Materials | ABS, PC, PP, PA66, PC/ABS, engineering plastics |
| Size Range | Up to 3,200 × 1,800 × 1,600mm |
Quality Assurance
ISO 9001:2016 certified
Full CMM dimensional inspection with traceable records
FAI report included with every mold
Material certificates for all mold steels
Frequently Asked Questions
What is the maximum mold size you can manufacture?
We can manufacture large-format injection molds with dimensions up to 3,200 × 1,800 × 1,600mm, utilizing our large-format CNC equipment.
Which mold steel materials do you offer?
We support a variety of mold steels based on your requirements, including S136, 718H, P20, and SKD11.
What quality documentation is provided with the molds?
We provide complete quality assurance documentation including First Article Inspection (FAI) reports, Coordinate Measuring Machine (CMM) dimensional reports, and material certificates for the mold steel blocks.
What gate systems can be integrated into the molds?
We support hot runner, submarine gate, side gate, and direct gate systems, ensuring proper flow distribution for large appliance components.
What is the expected life cycle of your injection molds?
Depending on the chosen mold steel and design configurations, the expected mold life ranges from 100,000 to over 1,000,000+ shots.
Which software do you use for mold design and DFM analysis?
Our engineering team designs and reviews mold structures using industry-standard CAD/CAM systems including SolidWorks, Pro/ENGINEER, UG, and CATIA.