High-Volume Manufacturing Services
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We provide end-to-end high-volume manufacturing solutions that take your design from mold to production. Common processes for large-scale production are injection molding, CNC machining, polyurethane casting, and compression molding.
Whether you need volume manufacturing for tens of thousands or millions of units, our high-volume contract manufacturing team ensures every custom plastic part or rubber part meets your exact specifications on time and within budget.
What is High Volume Manufacturing?
High-volume manufacturing refers to producing large quantities of identical parts using highly efficient, automated processes. This type of high-volume production is the preferred choice for industries requiring consistent quality, tight tolerances, and low per-unit costs. Common applications include:
- Automotive: engine components, interior parts
- Medical devices: housings, surgical instruments
- Consumer electronics: enclosures, connectors, accessories
- Household appliances: casings, knobs, mechanical components
- Industrial equipment: gears, fasteners, fittings
High-Volume Production Project We Handle
Large-scale production is rarely just about injection molding or machining alone. Most projects involve multiple materials and manufacturing steps that must work together efficiently. We integrate molding, machining, finishing, assembly, and packaging into a single production solution, helping customers simplify their supply chain while maintaining consistent quality across high-volume orders.| Your Project Needs | Our Combined Process | What You Get |
|---|---|---|
| Plastic enclosures + rubber gaskets, 50,000–500,000 units/run | Injection molding + compression molding + assembly | Finished, tested product at scale — consistent quality from first run to millionth unit |
| Structural plastic parts + precision metal inserts, high-cycle production | Injection molding + CNC machining | Assembled components with ±0.05mm tolerances, repeatable across every batch |
| Large-volume plastic parts + custom packaging, 100,000+ units | Injection molding + secondary processing + branded packaging | Retail-ready or warehouse-ready units, consolidated in one shipment |
| Retail-ready or warehouse-ready units, consolidated in one shipment | Multi-process molding + painting / plating / sandblasting | Fully finished parts at volume — no third-party finishing, no split shipments |
Our High-Volume Manufacturing Capabilities
Injection Molding
- 200+ machines on-site across a 30,000 sqm facility
- Materials: ABS, PP, PC, Nylon, TPE, TPU, silicone, rubber
- Tolerances: ±0.05mm standard
- Output: up to 1,000,000+ parts per month
- Ideal for: plastic housings, enclosures, connectors, consumer product components
CNC Machining
- 3-axis, 4-axis and 5-axis milling and turning
- Materials: aluminum, steel, brass, copper, engineering plastics
- Tolerances: ±0.01mm for precision parts
- Ideal for: metal inserts, brackets, jigs, structural components
Compression Molding
- Suitable for rubber, silicone, and thermoset materials
- 100+ mold sets produced per month
- Ideal for: seals, gaskets, diaphragms, vibration-damping parts
Assembly & Secondary Processing
- Manual and semi-automated assembly lines
- Surface finishing: painting, electroplating, sandblasting, heat transfer printing
- Custom packaging: retail-ready, OEM, bulk industrial
High-Volume Manufacturing Cases
Case 1 — Automotive Interior Components
Customer Requirement
One automotive customer required 500,000 plastic interior trim pieces per year with consistent color matching and virtually zero warping. Their previous supplier struggled to maintain quality once production exceeded 50,000 units per run.
Our Solution
We optimized the mold design for high-cycle manufacturing, standardized raw material batching to eliminate color variation, and assigned dedicated production lines to ensure stable output throughout every production run.
Project Result
We now supply 500,000 parts annually through scheduled monthly deliveries, maintaining a defect rate below 0.3% while reducing the customer’s unit cost by 22% compared with their previous supplier.
Case 2 — Consumer Electronics Sealing Components
Customer Requirement
A consumer electronics brand required more than 1,000,000 rubber sealing components each year, with FDA-compliant materials and complete batch traceability for every shipment.
Our Solution
We established dedicated compression molding production lines, provided documented material certifications for every batch, and issued full quality inspection reports with each shipment to support compliance requirements.
Project Result
The project has achieved 12 consecutive monthly shipments with zero compliance rejections and an on-time delivery rate of 98.5%, giving the customer a stable and traceable supply chain.
Why Choose Jiangzhi for High-Volume Manufacturing Service?
Most high-volume manufacturers will tell you they can handle your order. The difference with Jiangzhi is what happens when volume scales up, timelines get tight, or specifications get complex.
We don’t outsource. Every process — molding, machining, finishing, assembly — runs inside our 30,000 sqm facility under one quality system. What you approve of the first article is what you get on unit 500,000.
We’ve done this before, at scale. 16,000+ custom projects delivered to 2,000+ clients across 70+ countries. Automotive tolerances, FDA-compliant materials, retail-ready packaging — we’ve run all of it in high volume.
And when you reorder, it gets easier. Your molds, material specs, and QC parameters stay on file. Second-run lead times are shorter than the first. No re-qualification. No surprises.
How to Work With Us?
FAQs About High Volume Manufacturing
Typical materials include thermoplastics (ABS, PP, PC, Nylon), elastomers (rubber, TPE), metals (aluminum, steel, zinc alloys), and composites.
