China Steel Number Stamps Supplier & Factories

Precision Engineering, High-Hardness Tool Alloys, and Enterprise-Scale Supply Chains for Industrial Marking Systems

Ningbo Jiangbei XinYe Metal Works Co., Ltd.

Founded in 1996 as a family business and surviving decades of global industrial transitions, Ningbo Jiangbei XinYe Metal Works Co., Ltd. stands today as an owner-managed SME corporation focusing on advanced metal components manufacturing. Xinye is strategically located in the Ningbo Jiangbei Industrial Zone, an easily accessible industrial hub within 3 hours from Shanghai Pudong International Airport via China's high-speed rail network.

Over the years, our operational footprint has expanded to a state-of-the-art production area of 16,000 square meters, with an additional 11,000 square meters of construction land ready for customer-focused infrastructure upgrades. Our agile team consists of 130 employees, comprising 80 highly skilled production technicians and 50 dedicated engineers focusing on R&D, quality management, product development, and global logistics.

Ningbo Jiangbei XinYe Metal Works Factory View
1996
Year Established
16,000㎡
Production Floor Area
130+
Expert Staff
20+
Technical Patents

Core Competencies & Technology Portfolio

Unmatched engineering capabilities that exceed expectations across industries

CNC Machining

High-precision turning, milling, and multi-axis drilling (up to 4-axis control centers) handling tight tolerances down to 0.001mm.

Aluminum Alloy Hot Forging

Utilizing high-capacity friction presses (300 to 1000 tons) to engineer dense, high-strength structural forged parts.

Wax Die Stainless Casting

Precision lost-wax investment casting delivering complex surface profiles, thin walls, and corrosion-resistant assemblies.

Extrusion & Stamping

Forming profiles in steel, alloy, copper, and polymer compounds, utilizing deep drawing press lines from 5 to 250 tons.

Global Market Footprint & Applications:

Our custom components are deployed across major industrial and critical safety markets including:

  • Industrial Products: Fire and gas safety detection systems, mining flame sensors, explosive and toxic gas detectors, and airfield hydrant pit box enclosure kits.
  • Aerospace Industry: Heavy-duty turbine inlets, complex transmission assemblies, and safety-critical brackets.
  • Automotive Industry: Power transmission components, electric bike parts (connectors, frame tubes, levers).
  • Food Processing & Appliances: Precision cream whippers, high-pressure cooking stove modules, and sanitary fixtures.

Technical Deep-Dive: Industrial Steel Stamps

Understanding material sciences, shock resistance, and marking longevity

When sourcing Steel Number Stamps, industrial purchasing directors look for three metrics: hardness consistency, impact longevity, and structural safety. Standard off-the-shelf punches chip or deform when used repeatedly on high-tensile steels. At Ningbo XinYe, we mitigate this through controlled metallurgy and rigorous heat-treatment processes.

1. Material Science and Tool Steel Selection

Our industrial steel stamps are crafted from premium cold-work shock-resisting tool steels, primarily Cr12MoV and Chrome Vanadium (Cr-V) alloys. These materials are characterized by their superior toughness and high wear resistance under cyclical shock loads. During manufacturing, the raw bars undergo a vacuum tempering process to achieve a micro-hardness rating of 58–62 HRC at the marking tip, while the striking end is drawn back to a lower hardness of 38–45 HRC. This dual-hardness design prevents catastrophic fracturing and mushrooming at the strike zone, ensuring maximum operator safety.

2. Precision Engraving Technologies

Standard letter stamps suffer from slight dimensional skew. We use high-precision CNC engraving to carve the characters. By maintaining exact draft angles (typically 60 degrees) and deep relief cuts, our stamps produce clean, high-legibility marks in metals without creating micro-fissures in the struck component. This is critical in aerospace applications, where stamping stress concentration can lead to structural fatigue.

Technical Specifications


Common Alloys: Cr12MoV, AISI D2, Cr-V (Chrome Vanadium)

Engraving Tip Hardness: 58 - 62 HRC (High Wear Resistance)

Striking End Hardness: 38 - 45 HRC (Anti-Mushrooming)

Process Route: CNC Engraving -> Vacuum Hardening -> Tempering -> Sandblasting -> E-Polish

Marking Media: Alloys, Stainless Steel, Carbon Steel, Copper, Aluminum, Rigid Polymers

China Factory 4.0: Supply Chain Resilience & Capacity

How our infrastructure scales to meet global enterprise demand

Friction & Hydraulic Press Lines

Our core stamping capability is built around high-load industrial machinery. We operate a fleet of friction press machines with force ranging from 300 tons to 1000 tons. These are augmented by column hydraulic machines (100t to 630t) and rapid punching press machines (5t to 250t). This machinery allows us to process high-volume, deep-drawn parts alongside standard stamping runs.

Aluminum Hot Forging Friction Press

CNC Turning & Machining Centers

For custom numbering heads, steel type holder systems, and precise industrial dies, we leverage state-of-the-art multi-axis CNC milling centers, CNC turning machines, and advanced grinding machines. This setup guarantees that complex marking solutions match original digital CAD models within microns.

Precision CNC Machining Centers

Factory Scalability: Our standard operational schedule runs 16 hours a day, 6 days a week. However, to support global logistics crunches or sudden surges in order quantities, our factory can transition into a 24/7 continuous production mode within 30 days. Land for expansion is immediately available, allowing us to install customized lines to support long-term contract partners.

Watch Us in Action

Take a virtual tour of our workshops, machinery, and operations

Inside our Ningbo Xinye Factory

See our stamping, casting, and multi-axis CNC machines manufacturing complex parts in real time. We prioritize physical safety, clean floor metrics, and systematic lean manufacturing.

Precision Machining Center - TIPAS MACHINE h65TMY

Witness our CNC machining centers with 4-axis control delivering ultra-precise tolerances on heavy-duty industrial components, showcasing advanced metallurgical processes.

Manufacturing Infrastructure Gallery

Real-world facilities supporting high-precision engineering outputs

Machinery Gallery 1
Machinery Gallery 2
Machinery Gallery 3
Machinery Gallery 4
Precision Milling Setup
Press Workshop Floor
CNC Lathes Operation
Metal Forging Process Line

Strict Quality Control & Testing Infrastructure

Traceability, metallurgical analysis, and zero-defect initiatives

Quality is the baseline of industrial procurement. With our customers' guidance, Ningbo XinYe has established a closed-loop quality control system. From raw material receipt to finished part shipping, every single workflow step is documented with a traceable file, ensuring alignment with ISO 9001:2015 and SA8000 standards. We employ advanced testing equipment to enforce absolute compliance with customer drawing tolerances.

GNR Spectrum Analyzer

GNR Spectrum Analyzer

Validates raw material alloy compositions prior to production, preventing chemical grade mixing.

CMM Inspection Machine

CMM Inspection

Coordinate Measuring Machines mapping geometry to verify tight tolerances in physical parts.

Video Measuring System

Video Measuring System

2D optical measurement systems verifying the micro-accuracy of stamp characters and deep-drawn radii.

Rough Meter

Roughness Metrology

Surface texture measurements verifying smooth surface finishes, especially on deep-drawn metal components.

Spring Tension testing machine

Tension/Compression Tester

Ensures structural toughness and yield strength, critical for high-tensile spring, safety valve, and metal stamp production.

Video Measuring System 2

Source Control & Quality Assurance

Continuous validation protocol from billet inspection through critical tolerances, ending with raw material tracking documents.

Corporate Culture & Workforce Strength

Our workforce is our foundation. Of the 130 experts employed at Xinye, 50 are dedicated to product design, prototyping, quality testing, and continuous process optimization. This configuration enables us to address complex technical requests quickly.

Our operation is built on three core corporate values:

  • Trust: Always coming first. We commit to exceeding customer expectations on delivery, performance, and transparency.
  • Responsibility: Detailed execution at every stage, providing total support tailored to the needs of customers and employees.
  • Professionalism: Ambition and execution combined with an emphasis on systematic process improvement.
ISO Certification SA8000 Certification
Xinye Management Team
Factory operations
QC office
Workforce

Industrial Capabilities Roadmap

Five pillars of custom industrial parts production

Stamping & Deep Drawn

Stamping & Deep Drawn

From complex automotive shells to safety-critical enclosures, we press materials into exact dimensional forms.

Lost Wax Casting

Lost Wax Casting

Stainless steel structural parts cast with precision wax-molds, eliminating extensive rough-machining steps.

Aluminium Die Casting

Aluminium Die Casting

High-volume production of lightweight brackets, housing assemblies, and electronics enclosures.

Aluminium Hot Forging

Aluminium Hot Forging

Creating highly dense structural alloys for heavy automotive transmission components and aerospace brackets.

CNC Machining

CNC Machining Services

Flexible manufacturing for short-run tooling, finishing, and complex geometric details matching strict tolerances.

Our Production Process

How we manage custom OEM orders from initial layout through bulk dispatch

Order intake

1. Order & Spec Handshake

The client delivers detailed engineering drawings. Our engineering division conducts a feasibility review to confirm geometry, physical tolerances, and material callouts.

Sample production

2. Prototyping & Tooling

We source the raw materials and construct matching tooling. Initial sample runs are made, followed by measurement scans and structural validation reports.

Detailed measurement Tooling check
Customer validation

3. Client Approval Loop

Physical prototypes are shipped with a complete inspection report, material certificates, and analytical test results for client sign-off.

Validation complete
Bulk production

4. Mass Production & Packaging

Following approval, we initiate scheduled production. High-volume output runs alongside multi-point QC. Parts are wrapped using anti-corrosion packaging to survive marine cargo transit.

After sales support

5. Dedicated Assembly & Support

We provide full component assembly inside our dedicated workshop, backed by a 1-year manufacturing defect warranty and lifetime structural support.

Dedicated Assembly Workshop

OEM Case Studies & Projects

Real-world manufacturing projects for global clients

Industrial Components

Heavy-duty, precision forged aluminum alloys engineered to survive extreme operations inside heavy machinery.

Material: Stainless Steel / Aluminum Alloy

Industrial Parts Case

Automotive Parts

Strict tolerance components for electric bikes and automotive transmissions, emphasizing dimensional alignment.

Material: Stainless Steel / Aluminum Alloy

Automotive Parts Case

Aerospace Industry

Fuel hydrant pit box systems, transmission brackets, and turbine inlet components demanding absolute reliability.

Material: High-Performance Stainless Steel / Alloy

Aerospace Parts Case

Wood Chipper Systems

Wood chipper cutter discs and feed rollers engineered to endure continuous impact loading without cracking.

Material: Q345B, 42CrMo, NM400 Steel

Wood Chipper Case

3D Product Visualization

Previewing our designs through interactive 3D modeling and animation software to guarantee design alignment before steel cuts are initiated.

Preview 3D Animation Process

Localization, Trade Compliance & Logistics

Navigating international import-export demands can be challenging. Ningbo XinYe streamlines this for you. We provide full customs clearance documentation, including Certificates of Analysis (CoA), Certificate of Conformance (CoC), material melt test sheets, cargo insurance details, and localized certificate of origin sheets.

Located near Ningbo Port (one of the largest deepwater container ports in the world), we offer flexible shipping options, including FOB Ningbo, CIF destination port, or door-to-door DDP air/sea freight. Standard prototype orders are completed within 7 business days, while volume production runs are delivered to ship-out points within 20–30 days from layout sign-off.

Finished cargo ready for shipping Packaging detail Quality inspection of stamping Material storage warehouse

Frequently Asked Questions

Essential facts on procurement, lead times, warranties, and customization

What are your prices for custom metal stamps and fabricated components?
Our pricing is calculated per project, depending on material grade, complexity, tooling requirements, and production volume. Tooling and raw material costs can fluctuate. Please contact our engineering sales department with your specifications to receive a detailed quotation.
Do you have a minimum order quantity (MOQ)?
Yes, we require ongoing minimum order values for international orders to maintain production efficiency. For small-batch requirements or initial pilot runs, please contact our team to discuss project-specific MOQs.
Can you provide full quality and compliance documentation?
Yes. We supply comprehensive documentation package with every shipment. This includes Certificates of Analysis/Conformance (CoA/CoC), GNR spectrum analysis reports, CMM measurement files, raw material certification, and Certificate of Origin documents.
What is your typical manufacturing lead time?
Prototype tooling and sample runs are typically completed within 7 business days. Mass production averages 20–30 days from receiving approval and deposit payments. Lead times count from final engineering sign-off.
What payment methods does Ningbo XinYe accept?
We accept standard telegraphic transfers (T/T), L/C, Western Union, and PayPal. Our typical payment term is a 30% deposit in advance, with the 70% balance paid upon presentation of the copy of the Bill of Lading (B/L).
What product warranty do you provide?
We provide a 1-year warranty covering material defects and workmanship errors, starting from the delivery note date. If any issue arises, our service team will work to resolve it, including shipping replacements if required.
How do you ensure safe international shipping?
We use heavy-duty export packaging, including vacuum seal bags, anti-rust paper coatings, structured foam spacers, and sturdy, heat-treated wooden crates to protect parts from salt air and impact damage during ocean transport.