MIM ·PM ·CNC ·OEM Manufacturing

Precision metal parts for global OEM programs

SINTS combines metal injection molding, powder metallurgy, CNC finishing, tooling, and inspection in one export-ready manufacturing partner for complex small metal parts.

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1995Manufacturing Since
45,000 m²Floor Area
30+Countries Served
IATF 16949Quality Certified
31yrs
Manufacturing Experience
120+
Production Equipment
7
Core Industries
4hrs
Avg RFQ Response
99.2%
On-Time Delivery

What We Make

Focused part families backed by MIM, powder metallurgy, CNC finishing, and a quality system buyers can verify.

Medical device MIM components

MIM ·SS316L ·17-4PH

 Lock cylinder and security components

Lock & Security

MIM ·PM ·SS316
 Coffee machine and appliance components

Coffee & Appliance

MIM ·Stainless Steel
 Consumer electronics MIM parts

MIM ·SS ·Titanium

 Power tools MIM components

Power Tools

MIM ·PM ·Gears
 Powder metallurgy gears

PartsPowder Metallurgy
Manufacturing Capabilities

Five processes, One quality gate

From feedstock to finished part — SINTS covers the full MIM and powder metallurgy value chain under one roof, with integrated CNC finishing and inspection.

01

MIM

Metal injection molding for complex small parts with repeatable geometry at production volume.

SS316L · 17-4PH · Fe alloys
02

Powder Metallurgy

Compacting and sintering for gears, bushings, and structural parts at competitive cost.

Fe-C · Cu · Low alloy steel
03

CNC Finishing

Post-sinter machining for tight-tolerance features, threads, and critical mating surfaces.

Turning · Milling · Grinding
04

Sintering

Controlled-atmosphere furnaces for consistent density, dimensions, and material properties.

H2 · N2 · Vacuum
05

Inspection

CMM, hardness, density, and metallographic verification for quality documentation.

PPAP · FAI · CMM Reports
Full Process Capability Data →
Engineering Resources

Specify your part with real data, Not marketing copy

Four reference libraries built for design and sourcing engineers — process limits, grade properties, inspection standards, and documented conversion results.

Process

Manufacturing Capabilities

MIM 0.1–200 g, PM presses to 500 t, achievable tolerances, secondary operations and tooling lead times — with the numbers we actually hold in production.

View capability data → Materials

Material Library

Density, tensile, yield, elongation and hardness for stainless, low-alloy, soft-magnetic and specialty grades — plus a shortcut table for picking a grade fast.

Compare grades → Quality

Quality System

IATF 16949 and ISO 9001 scope, inspection equipment list, AQL levels, and exactly which documents ship with your parts — COC, FAI, PPAP, SPC, RoHS/REACH.

See the QC standard → Evidence

Conversion Case Studies

Three documented programs moved from CNC or casting to MIM and PM — with cost deltas, yield changes, lead-time impact and tooling payback periods.

Read the results →

Our Factory

Real equipment, real parts, and one integrated 45,000 m² campus for tooling, molding, sintering, finishing, and inspection.

Factory exterior with company signboard
01 Exterior
 Molding press shop floor
02 Molding Shop
 Sintering furnace
03 Sintering
 CNC machining center
04 CNC
 CMM quality inspection
05 Inspection
 Parts showroom
06 Showroom

Why SINTS

Production data, quality systems, and factory access for buyers who need more than a catalog.

⚙

Full MIM + PM Production Lines

In-house MIM, powder metallurgy, tooling, CNC, and finishing —one supplier for the complete process and one quality gate.

✓

IATF 16949 Certified

Quality system built for automotive and medical buyers. PPAP, FMEA, and first-article inspection reports available.

★

Export to 30+ Countries

Experienced with international packaging, documentation, and logistics. DDU, DDP, FOB, and CIF are available.

Buyer Guides & Blog

Practical guides for engineers and procurement managers evaluating MIM and PM parts.

MIM process explained
Process Guide

What Is Metal Injection Molding for Small Precision Parts?

MIM vs CNC vs PM: when each process makes sense, and how to decide for your part geometry.

→
Choosing manufacturing route
Sourcing Guide

How to Choose the Right Manufacturing Route for Small Metal Parts

A practical decision framework for engineers comparing MIM, PM, stamping, and CNC for a new project.

→
RFQ preparation guide
RFQ Guide

What to Include in a Custom Metal Parts RFQ

The information a manufacturer needs to give you an accurate quote —and what missing details cost you.

→

A faster way to assess process fit

Clear answers for engineering and procurement teams comparing MIM, powder metallurgy and CNC suppliers.

When is MIM a good fit?

MIM is suited to small, complex metal parts that need repeatable geometry and production volumes that justify tooling. SINTS reviews geometry, material, annual volume and critical tolerances before recommending a route.

What should be included in an RFQ?

Send a 2D drawing or 3D CAD file with material, annual volume, application, critical dimensions, finish, inspection requirements and target timing whenever available.

Can SINTS support quality documentation?

Yes. Buyers can request first-article samples, dimensional reports, material confirmation, PPAP-style documentation and production packaging review according to project requirements.

RFQ Process

From drawing to delivery in four stages

A structured process that moves your part from concept to production with engineering review at every step.

Submit Drawing

Send 2D drawing or 3D CAD file with material, volume, and application details.

Engineering Review

We assess process fit, manufacturability, tooling needs, and respond within 4 business hours.

Sample & Report

First-article samples with dimensional reports, material confirmation, and process documentation.

Production Supply

Batch production with quality control, packaging, and export documentation for global delivery.

Ready to get an accurate quote?

Send your 2D drawings or 3D files. We reply within 4 business hours.

Send Your Drawings

Start the conversation

Tell us about your part. We'll respond with capability confirmation, lead time, and a budget indicator.

Optional. Up to 12 MB per file.

Your RFQ will be sent securely to the SINTS international sales team.

📍

Zhongshan, Guangdong, China

45,000 m² production base. ISO 9001 + IATF 16949 certified. Export to 30+ countries.

✉

International Sales Team

International Sales

Andy · andy@sints.cn · +86 138 2229 1317
WhatsApp →

International Sales

Choi · choi@sints.cn · +86 139 3568 6831
WhatsApp →

International Sales

Chris · chris@sints.cn · +86 138 2878 5172
WhatsApp →
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Factory Visits

Video calls and in-person visits available. Coordinate via email.

ISO 9001 IATF 16949 ISO 13485 RoHS REACH