Plastic Electrical Box Mould

Plastic Electrical Box Mould – Custom Waterproof Junction Box Injection Mold Manufacturer

ZHONGYUE MOULD is a professional Chinese injection mold manufacturer supplying custom Plastic Electrical Box Moulds / Electrical Junction Box Injection Molds to distributors, OEMs, and electrical enclosure brands worldwide. From compact residential switch boxes to large industrial terminal enclosures and IP65/IP67 waterproof junction boxes, we engineer molds that deliver flash-free parts, precise sealing grooves, and consistent cycle times in ABS, PC, PC+ABS, PP, PVC, and flame-retardant PA66+GF.

Send us your 2D/3D drawings — we provide free DFM analysis and mold flow simulation report before tooling begins.

Plastic Junction Box Mould specifications :

Make your next Plastic Junction Box Mould project brighten!

Applicable Electrical Box Types We Tool

Core Mold Engineering Highlights

Optimized Cooling & Short Cycle Time — Baffle, bubbler, and BeCu inserts placed near thick bosses to reduce warpage and cycle time by 10–20% vs. conventional designs.

Precision Sealing Surface Molding — Cavity finish to SPI A2/B1 polish; sealing groove dimension controlled within ±0.02 mm for reliable IP rating performance.

Flexible Runner & Gating Solutions — Cold runner (sub-gate / edge gate) or branded hot runner (YUDO / HASCO / Mold-Master; open or valve gate) for balanced filling in multi-cavity layouts.

Complex Demolding — Hydraulic Slides / Collapsible Core / Lifters — For side conduit entries, internal threads, undercut knockouts, and snap-fit features.

Recommended Molding Materials & Shrinkage

ABS / HIPS — indoor boxes, shrinkage ~0.4–0.7%; economical & good surface

PC / PC+ABS — outdoor UV-resistant & impact-rated boxes, shrinkage ~0.5–0.7%

PP / Modified PP — low-cost general boxes, shrinkage ~1.2–2.0%

PVC (Rigid uPVC) — corrosion-resistant enclosures, shrinkage ~0.4–0.8%

PA66+GF (25–35%, FR V-0) — industrial high-strength enclosures, shrinkage ~0.2–0.5%

Frequently Asked Questions

Q: Can you make molds for both the box body and the cover/lid?

A: Yes. We commonly design matched mold sets — one for the junction box body (often with side cores/slides) and one for the cover/lid (often simpler, sometimes family mold if size permits).

Q: What is the minimum order and lead time?

A: MOQ is 1 set. Standard lead time is 35–55 days after final 3D design confirmation. Rush service is available for certain structures.

Q: Do you provide mold trial samples and inspection reports?

A: Yes. We run T1/T2 trials on our in-house injection machines, and supply trial video, dimensional CMM report, and samples for your approval before shipment.

Q: Which countries do you export to? 

A: ZHONGYUE MOULD has exported molds to Europe (Germany, Italy, UK), North America (USA, Canada), South America, the Middle East, and Southeast Asia.

Why Partner with ZHONGYUE MOULD?

Specialist in Electrical & Enclosure Molds — 15+ years focused experience in junction box, switch box & distribution box tooling

Free DFM & Mold Flow Report — Identify potential issues before steel cutting

Strict In-process QC — Weekly progress photos, final CMM inspection, T1 sample approval

Export-ready Packaging & Documentation — Fumigation-free case, steel certs, heat treatment cert, operation manual

1-Year Mold Warranty + Spare Parts — Lifetime technical support

Get a Quote for Your Plastic Electrical Box Mould

Email your part drawings (STEP/IGS/STP/DWG/PDF) with:

Annual production volume / required cavitation

Target plastic material

Special requirements (IP rating, texture, hot runner brand preference)

ZHONGYUE MOULD will respond with DFM feedback and formal quotation within 24 working hours.

How we processing the project?

About us

Driven by the philosophy:

“Quality Makes the Future, Focus Creates Professional”

Zhongyue Mould is a leading company in the plastic injection air conditioner Cover mould industry. Our highly experienced team of engineers and designers have many decades of combined experience in plastic air conditioner Cover mould design and manufacturing. We provide a comprehensive service, specializing in the production of high-quality and high-precision air conditioner Cover moulds. We have also assisted numerous customers in customizing various types of plastic air conditioner Cover moulding lines.

We can also offer comprehensive assistance in the management of your production process. The procurement department will purchase high-quality raw materials, while the technical department will select the appropriate plastic formula. In accordance with the parameters of the plastic air conditioner Cover mould life requirements and market positioning, we will select the most suitable plastic air conditioner Cover parameters, structure, etc. Our extensive production capacity allows us to deliver plastic air conditioner Covers promptly, at competitive prices and with guaranteed quality.