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About Ningbo Jinggang Machinery Co., Ltd.

About Ningbo Jinggang Machinery

ISO 9001:2015 Certified IATF 16949 Compliant

Ningbo Jinggang Machinery Co., Ltd. is a custom metal parts manufacturer with over 15 years of experience in stamping, CNC machining, casting, forging, and welding. We hold ISO 9001:2015 certification and have passed IATF 16949 quality system compliance for automotive-related projects.

Located near Ningbo Port, one of the world's busiest ports, we offer efficient logistics to global customers. Our 4,000m² facility includes four specialized workshops and a fully-equipped QC laboratory.

🔩 Stamping Workshop
⚙️ CNC Workshop (40 machines)
🔧 Welding & Assembly
📐 In-house QC Lab (CMM + more)

We serve industries including water systems, industrial machinery, vehicles & ships, construction, mining, and agriculture. Our parts are exported to over 30 countries across North America, Europe, the Middle East, Southeast Asia, and Africa.

Our engineering team provides free DFM (Design for Manufacturing) analysis using Auto-CAD, SOLIDWORKS, UG/NX, CATIA, ProCAST, and CAE – helping customers optimize design for cost and manufacturability before production.

Company at a Glance

Experience 15+ Years
Facility Size 4,000 m²
CNC Machines 40 Sets
Export Countries 30+
Quality Warranty 12 Months
Certifications ISO 9001:2015
IATF 16949 Compliant

✅ 100% inspection at every stage

📄 Full material traceability

🛡️ 12-month quality warranty on all delivered products

📤 Ready to start your project?

Upload your drawings (PDF, DWG, DXF, STEP) – our engineers will respond with DFM analysis and quotation within 24 hours.

Upload Your Drawing – Get Free Quote →

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Why Global Engineers Choose Jinggang

Five reasons we're different from other China metal parts suppliers

1

From Drawing to Delivery – One P.O. Covers Everything

Most suppliers specialize in only one process. You manage multiple vendors for casting, machining, and assembly. We do all three in-house. One purchase order. One quality standard. One point of contact. This is why our customers reduce supplier management time by up to 40%.

2

We Say "No" Before You Waste Money on Tooling

Many factories accept any drawing and figure out problems during production. Our engineers review your design before tooling starts. If we see a feature that adds cost without adding value, we tell you and offer alternatives. We'd rather lose a quote than ship a bad part.

3

Our QC Lab Runs 7 Days a Week

We don't "inspect quality" – we build quality into every piece. Our CMM runs daily. Hardness tester and universal strength tester are used on every batch, not just random samples. When you receive parts from Jinggang, you receive a complete inspection report – not a promise.

4

We've Already Passed the Audits That Matter to Your Company

ISO 9001:2015 and IATF 16949 aren't just certificates on our wall – they're working systems that govern production, material traceability, and non-conformance handling. We've been audited by customers from Germany, USA, and Japan. All passed.

5

We Ship from Ningbo Port – 3 Days Closer Than Most Competitors

Our factory is minutes from Ningbo Port, one of the world's busiest ports. While other suppliers truck parts 500km to Shanghai, we're already on the water. This saves you 3-5 days of lead time. For urgent orders, we can deliver samples in as little as 10 working days.

Where Our Parts Are Used

Real applications, real engineering – not just a list of industries

💧

Water Systems – A Valve Body That Doesn't Leak

A US water treatment manufacturer needed a ductile iron valve body for 500,000 open-close cycles at 16 bar. Two previous suppliers failed on porosity. We used ProCAST simulation to redesign the gating system, reduced porosity below 1%, and delivered 2,000 units with zero field failures in 18 months.

🏭

Industrial Machinery – A 600mm Shaft That Stays Straight

A German packaging machinery company needed a 600mm stainless steel shaft with 0.015mm concentricity across the entire length. We used centerless grinding with steady rests on our CNC lathes to control deflection. First article passed inspection – production order followed immediately.

🚛

Vehicles & Ships – Bronze Bearings That Survive Saltwater

A Canadian marine propulsion company needed aluminium bronze bushings with ID tolerance of ±0.013mm and saltwater corrosion resistance. We selected C95400 centrifugal castings, machined on our CNC equipment, applied marine-grade coating. 12 repeat orders over 3 years.

⛏️

Mining – Wear Parts That Outlast the Original by 37%

A South African mine was replacing crusher wear plates every 8 weeks. We analyzed the failure mode and recommended a harder alloy with optimized heat treatment. The new parts last 11 weeks – a 37% improvement. They've since converted 80% of their wear parts to our specification.

🏗️

Construction – A Crane Fitting That Passed 200% Load Test

A UK distributor needed a high-load lifting fitting for tower cranes – a safety-critical component. We produced it in forged alloy steel, performed 100% ultrasonic testing, and witnessed third-party load testing at 200% of rated capacity. Parts passed – now stocking 15 different fittings from us.

🌾

Agriculture – A Harvester Part That Saves 8 Hours of Downtime

An Australian agricultural manufacturer used a welded assembly for a grain harvester component that cracked every season – causing 8-10 hours of downtime. We proposed a one-piece forged design that eliminated the weld seam. Zero cracking reports in two full harvest seasons.

Quick Answers – Before You Place Your Order

Seven questions every buyer asks. Seven direct answers based on our actual policies.

Q1：How long is your delivery time? +

Standard delivery: 30–40 working days after order confirmation and deposit receipt.

Sample orders: 15–20 working days.

Urgent orders: We have expedited small batches in 10 working days. Please contact us with your specific deadline – we will confirm if we can accommodate.

Q2：What are your payment terms? +

Standard terms: 30% deposit upon order confirmation, 70% balance against copy of Bill of Lading.

For new customers: We also accept L/C at sight or 30% deposit + 70% before shipment for initial orders.

For sample orders: 100% payment upfront via T/T or Western Union.

Q3：Do you provide samples? Is it free or charged? +

Yes, we provide samples.

Sample charge: Samples are offered for a fee – covering material, machining time, and inspection. The exact cost depends on part complexity and quantity (typically 1–5 pcs for sample orders).

Sample lead time: 15–20 working days.

Sample refund policy: For confirmed production orders, we deduct the sample cost from the final invoice.

Q4：Do you accept OEM orders? +

Yes – we are 100% an OEM supplier.

We do not sell branded products under our own name. Every order is manufactured strictly to your drawings, your specifications, and your quality requirements.

Confidentiality: We sign Non-Disclosure Agreements (NDAs) upon request. Your designs and project details remain confidential.

Q5：Can you design equipment according to our specific dimensions? +

Yes, absolutely.

We manufacture strictly according to customer drawings and specifications. If you provide dimensional requirements, we can engineer the part to meet your exact needs.

Engineering support: Our team uses SOLIDWORKS, UG/NX, and AutoCAD to review and optimize designs before production. We provide DFM (Design for Manufacturing) analysis free of charge.

Q6：How long does it take to provide design options? +

Approximately one week from receiving your drawings and requirements.

This includes:

  • DFM analysis and manufacturability review
  • Material recommendation based on application
  • Cost optimization suggestions
  • Preliminary process flow design

For urgent projects: We can provide initial feedback within 48 hours.

Q7：What's the fastest way to get a quotation and start my project? +

Step 1: Email your drawings (PDF, DWG, DXF, STEP) to peter@jinggangmachinery.com

Step 2: Our engineers review and provide DFM feedback within 24 hours.

Step 3: We send a formal quotation with pricing, lead time, and payment terms within 3-5 working days.

Step 4: Upon order confirmation, we begin production and keep you updated weekly.

Still have questions? We're here to help.

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