About Us

MINGCHING INDUSTRIAL CO., LTD.,
ESTABLISHED IN 2009

MingChing Industrial Co., Ltd., established in 2009,located in Shenzhen City, China, is a professional manufacturer specializing in industrial customized injection plastic and metal hardware components. Commitment to excellence, we serve a diverse range of clients across Europe and the United States, delivering precision-engineered solutions tailored to meet the demands of modern industrial applications.

As a dedicated factory,we integrate advanced technology with expert craftsmanship, enabling us to produce high-quality plastic and metal parts. We ensure fast communication, consistent quality control, and efficient production timelines. This integrated approach allows us to offer a comprehensive one-stop solution for complex industrial projects.

Quality is at the core of everything we do. We are certified under ISO9001 and TS16949 standards, implementing rigorous quality control measures at every step of production—from material selection and processing to final inspection and testing. This ensures that every component leaving our factory meets the highest international standards.

Our mission, "Customer Quality First”. We believe in building long-term partnerships based on trust, transparency, and a shared commitment to excellence. As a responsible and forward-thinking company, we continuously strive to improve our processes, support sustainable practices, and deliver value that exceeds expectations.

Let us be your trusted partner in plastic and metal parts manufacturing. Contact us today to discuss how we can support your next project with quality, capability, and care.

Experience

MingChing was founded in 2009 and has 16+ years of experience

6000 +

Customers served

Trusted by 6,000+ Customers Worldwide

20000 +

Design Drawings Processed

Processed 20,000+ Design Drawings for Manufacturing

FACTORY SHOWCASE

We are a source factory specializing in precision manufacturing, offering one-stop capabilities from mold development, molding production, and secondary processing to final assembly. We provide aluminum/zinc alloy die-cast parts and precision plastic structural components, meeting the stringent demands of the energy storage, electronics, communication, and home appliance industries for high-strength, heat-dissipating metal parts and high-precision, stable plastic components.

Injection Mold Customization factory

In the plastic injection molding section are equipped with 30-600 ton fully electric injection molding machines that operate in an orderly manner. These machines can precisely mold various complex plastic parts, ranging from miniature connectors to the upper covers of large energy storage battery packs.Engineers can prevent defects such as shrinkage and bubbles through mold flow analysis. The size of the 0.1mm clip can be controlled within a tolerance of ±0.02mm.

Quality control runs through the entire process. Raw materials are inspected for melt index and moisture content upon entry. During production, a three-coordinate measuring instrument is used to verify the dimensions of the first piece and regular spot checks are conducted. Before delivery of the finished products, UL94 fire resistance level tests and drop tests are carried out. All products comply with the RoHS standard and are traceable throughout the process. High-quality raw materials from companies like Covestro and Sinopec are selected. The products have high strength, corrosion resistance and good appearance texture. The sample delivery cycle is only 5 days, and the on-time delivery rate for batch orders is 98%.

Customized die casting

In the die-casting section,equipped with 280-1200 ton die casting machines, we utilize high-pressure injection to ensure parts are dense and high-strength. Quality control is strictly enforced throughout production: spectrometers control composition deviation to ≤0.5% during smelting, and pressure sensors monitor injection curves. After X-ray flaw detection and CMM inspection (with critical dimensional errors ≤0.05mm), parts undergo CNC machining and surface treatment in-house. This fully integrated process guarantees both lead time and quality.

Using premium raw materials from Chalco and Zhuzhou Smelter, our products offer high strength, heat dissipation, and corrosion resistance. Our optimized processes allow for a 7-day sample lead time and a 99% on-time delivery rate for bulk orders, with all data recorded in our MES system for full traceability.

Based on the robust strength of metal die-casting and the precise stability of plastic injection molding, we provide global customers with cost-effective and comprehensive precision manufacturing solutions.

HONORS AND CERTIFICATIONS

Our mission, "Customer Quality First”.

Certificate of Honor

ADVANTAGES

We combine advanced engineering with agile service to deliver superior hardware and plastic components.

Precision Engineering & Material Expertise

Equipped with 5-axis CNC and all-electric injection molding machines, we achieve tolerances of ±0.005mm (metal) and ±0.02mm (plastic). We process diverse materials from stainless steel to PEEK, specializing in complex integration like insert molding, over-molding, and full assembly to guarantee seamless final products.

Rapid Prototyping to Mass Production with DFM

Accelerate your launch with 24-hour quotes and prototypes in 3-5 days. We provide complimentary DFM analysis to optimize designs and reduce costs before production. Our flexible lines scale effortlessly from 50 validation units to 500,000+ mass production runs, maintaining a 98% on-time delivery rate.

ISO-Certified Quality & Transparent Partnership

Operating under ISO 9001:2015, our internal lab uses CMMs and salt spray testers to ensure rigorous quality, complete with FAI reports. Our fluent English team eliminates communication barriers, offering real-time production tracking and detailed inspection photos. Backed by a robust after-sales guarantee, we ensure peace of mind from quote to delivery.

Plastic Injection Equipments

Plastic Injection Equipments	Units	Platen Size	Shot Weight	Maximum Mold Height
5000 Tons BORCHE	1	(2500 mm x 3000 mm)	50 kg	-
3300 Tons Toshiba	1	(1950 mm x 2200 mm)	20 kg	-
2200 Tons Toshiba	1	(1500 mm x 1800 mm)	15 kg	1500 mm
1300 Tons Toshiba	2	(1300 mm x 1500 mm)	6 kg	-
1000 Tons Nan Rong	3	(1100 mm x 1200 mm)	4 kg	1000 mm
550 Tons Victor Taichung	8	(900 mm x 1000 mm)	2.5 kg	950 mm
450 Tons Victor Taichung	2	(760 mm x 760 mm)	1.5 kg	900 mm
350 Tons Nissei	6	(550 mm x 550 mm)	1 kg	690 mm
250 Tons Taiwan	26	(500 mm x 500 mm)	500 g	650 mm
200 Tons Taiwan	8	(450 mm x 450 mm)	350 g	600 mm
150 Tons Taiwan	22	(350 mm x 350 mm)	200 g	500 mm
60~100 Tons Taiwan	8	(350 mm x 350 mm)	100 g	450 mm

FREQUENTLY ASKED QUESTIONS

Find solutions, explore resources, and resolve issues faster

(01 ) - What services does your factory mainly provide? Is customization supported?

We specialize in one-stop precision plastic injection molding and aluminum/zinc alloy die-casting services, covering mold R&D, molding production, secondary processing, and final assembly. We fully support OEM/ODM customization. You only need to provide 3D drawings, 2D dimension drawings, or samples, and we will complete mold design, material selection, and process optimization to meet your customization needs.

(02 ) - What is your Minimum Order Quantity (MOQ)?

It is flexibly adjusted according to product type. The MOQ for plastic parts can be as low as 500-1,000 pieces, and the MOQ for die-cast parts is typically 500-1,000 pieces. The specific quantity will be determined based on product complexity and the number of mold cavities. Small-batch trial production is supported.

(03 ) - What materials do you use? Does the product meet environmental protection standards?

Plastic parts are made from engineering plastics such as ABS, PC, and PA, while die-cast parts are made from aluminum alloy and zinc alloy, all using high-quality raw materials. All products comply with RoHS environmental standards, and test reports such as material certificates and environmental protection reports can be provided upon request.

(04 ) - What is the dimensional accuracy that the product can achieve? Can special processes be carried out?

The tolerance for key parts of plastic parts can reach ±0.02mm, and the tolerance for key dimensions of die-cast parts can be controlled within ±0.05mm. We support complex processes such as two-color injection molding, insert molding, and thin-wall die casting. Mold flow analysis/casting simulation will be conducted in advance to avoid defects such as shrinkage and air bubbles.

(05 ) - How do you ensure product quality? Can you provide the test report?

We implement strict quality control throughout the entire process: incoming raw material inspection, regular in-process sampling, and pre-delivery testing including fire resistance/drop tests (for plastic parts) and hardness/porosity testing (for die-cast parts). All data is fully traceable. Various test documents such as material certificates, dimension reports, and environmental protection reports can be provided.

(06 ) - What are the delivery times for sample making and bulk orders respectively?

After mold completion, sampling for simple parts takes 3-5 days, and for complex parts, it takes about 7 days. The lead time for regular bulk orders is 15-20 days, with an on-time delivery rate of over 98%. Urgent orders can be accommodated through optimized production scheduling.

(07 ) - How can I get a quote? How do you handle product quality issues?

Provide drawings/samples along with requirements for materials, quantity, and surface treatment, and you will receive a quote within 24 hours. If quality issues arise, we support free rework or return/exchange. We will analyze the cause and optimize the process immediately to prevent the same problem from recurring.

MINGCHING INDUSTRIAL CO., LTD.,

About Us