Sints China - Precision MIM & Sintered Metal Parts Manufacturer

About Sints China

Sints has achieved a leadership position in the field of precision metal parts, providing excellent custom fabrication service to customers in more than thirty countries across the Americas, Europe, and Asia.

As a manufacturer of all kinds of metal parts using Metal Injection Molding (MIM) and sintering technologies, we specialize in high-precision components for critical applications in security, healthcare, electronics, and industrial machinery.

28+

Years of Experience

30+

Global Partners

10,000+

Square Meters Facility

6,000+

Annual Productivity

Why Choose Sints China

We combine decades of expertise with cutting-edge technology to deliver unmatched quality and reliability.

Advanced MIM Technology

Utilizing state-of-the-art Metal Injection Molding for complex, high-precision parts with excellent repeatability.

Stainless Steel Expertise

Specializing in corrosion-resistant stainless steel components ideal for locks, medical devices, and harsh environments.

Global Reach

Serving over 30 countries with reliable supply chains and responsive customer support.

Full Production Control

From powder to finished part, we maintain strict quality control throughout the entire manufacturing process.

Our Product Range

High-precision MIM and sintered metal components for diverse industrial applications.

Fingerprint Door Lock Fittings

Stainless steel components for electronic access control systems.

Corrosion Resistant

Door Lock Parts

Precision sintered and MIM components for mechanical and electronic locks.

High Durability

MIM Lock Components

Complex geometries produced via Metal Injection Molding for security hardware.

Net-Shape Production

Stainless Steel Gears

Sintered and MIM gears for precision transmission in various applications.

High Torque Capacity

Bevel Gears

Conically shaped gears for transmitting motion between intersecting shafts.

Precision Angled Teeth

Spider Gears

Critical differential components used in automotive and industrial transmissions.

Differential Core Component

Metal Bushings

Wear-resistant components for hydraulic pumps and rotating machinery.

Self-Lubricating Options

MIM Tungsten Parts

High-density components made from refractory metals with extreme melting points.

Heavy & Dense Applications

Sintered Metal Blocks

Solid components formed through heat and pressure fusion of metal powders.

High Structural Integrity

Button Lock Parts

Mechanisms for folding knives and portable tools requiring secure locking.

Compact & Reliable

Combination Lock Components

Stainless steel parts for vaults, safes, and high-security containers.

Security-Certified Materials

Electronic Accessories

Miniature stainless steel components for consumer and industrial electronics.

Miniaturized Precision

View Full Product Catalog

Advanced Manufacturing Capabilities

Precision Tolerance Control

We maintain tight dimensional tolerances in sintered parts through advanced process control and continuous improvement methodologies.

Material Science Expertise

Deep knowledge of powder metallurgy stainless steel properties, including corrosion resistance and mechanical performance.

Cost-Effective Production

MIM technology offers lower costs compared to stamping for complex geometries, especially in medium to high volumes.

Frequently Asked Questions

What is Metal Injection Molding (MIM)?

Metal Injection Molding is a manufacturing process that combines fine metal powders with a binder material to create complex, high-precision metal parts. The mixture is injected into a mold, then debound and sintered to achieve a dense, strong final product.

Do stainless steel locks rust?

High-quality stainless steel locks are highly resistant to rust and corrosion due to their chromium content, which forms a protective oxide layer. However, in harsh environments or with lower grades, some surface oxidation may occur over time.

Can stainless steel be used for gears?

Yes, stainless steel is commonly used for gears, especially in environments requiring corrosion resistance, hygiene (like food processing or medical devices), or where non-magnetic properties are needed.

Is MIM more cost-effective than stamping?

For complex geometries and medium to high volumes, MIM is often more cost-effective than stamping because it reduces or eliminates secondary operations and produces net-shape parts with minimal waste.

What industries use your components?

Our parts are used in lock manufacturing, electric tools, medical devices, consumer electronics, household appliances, agricultural machinery, and industrial equipment.

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Precision Metal Injection Molding & Sintered Parts