Manufacturing · Zhongshan & Jiangxi, China

Factory & manufacturing resources for PM, MIM and precision metal parts

Zhongshan is the principal SINTS site for PM, MIM, secondary finishing and inspection, while the Jiangxi base adds powder-metallurgy production capacity. Together the two production bases provide about 45,000 m² of manufacturing area.

45,000 Combined Manufacturing Area
2 Manufacturing Bases
1995 Manufacturing Since
32 Injection Machines · 50T–400T
IATF16949 Zhongshan PM Scope
Manufacturing Footprint

Manufacturing footprint across two production bases

Zhongshan is the principal SINTS site for PM, MIM, secondary finishing and inspection, while Jiangxi adds powder-metallurgy capacity. For each RFQ, the manufacturing route, production site and any approved supporting operations are confirmed during project review.

01

Raw Material Bay

Metal powders and feedstocks are controlled to the material specification and traceability requirements defined for the program.

02

Compounding & Feedstock

Feedstock preparation and material handling are matched to the selected alloy and MIM route; the exact sourcing and preparation path is confirmed during project review.

03

Injection Molding Hall

Current company capability information lists 32 injection machines from 50T to 400T for MIM production.

04

Debinding & Sintering

Vacuum sintering equipment supports controlled thermal profiles for PM and MIM programs. Furnace route and acceptance criteria are confirmed by material and drawing.

05

Heat Treatment

Heat-treatment requirements are selected by material and drawing; the available route is confirmed during quotation.

06

CNC Finishing

CNC machining and finishing support critical bores, threads, datums and mating faces where the drawing requires secondary control.

07

Inspection Lab

CMM, hardness, density, roughness and metallographic inspection are available according to the project control plan.

08

Sample Showroom

Physical sample references are maintained for engineering discussion and customer review.

Pre-alloyed metal powder feedstock for MIM
Material & Molding

Material and molding control starts with the drawing

For MIM projects, SINTS reviews material grade, feedstock route, geometry and critical dimensions before production. Material and batch traceability requirements are defined in the project quality plan.

  • Injection equipment · current capability information lists 32 machines from 50T to 400T
  • Material range · stainless, low-alloy and other grades confirmed from the material specification
  • Tooling development · DFM, mold development and trial planning supported before production
  • First article · timing and inspection scope confirmed after drawing and tooling review
MIM injection molding line  —pressing area with operators
Operator-Staffed Lines

Operator-supervised production

Molding lines are operator-supervised and run to documented process settings. Staffing and production schedules follow the agreed program and delivery requirements.

  • Process control · temperature, pressure and shot-weight parameters monitored per process plan
  • Production scheduling · aligned to approved demand and delivery requirements
  • Operator training · role-specific work instructions and training records
Vacuum sintering furnace at SINTS
Vacuum Sintering

Vacuum sintering matched to material and part requirements

Vacuum sintering equipment supports material-specific thermal cycles for PM and MIM programs. Furnace selection, atmosphere, density targets and dimensional acceptance criteria are confirmed by alloy and drawing.

  • Process window · defined by material, feedstock and validated sintering recipe
  • Atmosphere · selected according to material and process requirements
  • Capacity · confirmed against current production loading and project demand
  • Validation · density, dimensions and material condition checked to the agreed control plan
CNC machining center for post-sintering finishing
CNC Finishing

Secondary machining where the drawing needs it

Threads, bearing surfaces, mating faces and critical datums may require machining or grinding after sintering. SINTS confirms which features need secondary control and whether the work is performed on SINTS equipment or through qualified supporting resources.

  • Operations · turning, milling, drilling, tapping and grinding as required by the drawing
  • Critical dimensions · tolerance capability confirmed feature by feature during DFM
  • Surface finish · controlled to the drawing or agreed finishing specification
  • Timing · quoted according to part complexity, batch size and secondary-operation route
Inspection & Quality

Inspection tied to the drawing and control plan

Inspection resources cover dimensional, mechanical and metallurgical checks. The actual inspection scope, sampling plan and release criteria follow the drawing, control plan and customer program.

Coordinate measuring machine in the SINTS inspection lab

CMM ·3D Dimensional

Coordinate measuring equipment supports 3D dimensional and GD&T inspection according to the drawing and control plan.

Hardness testing equipment in the SINTS inspection lab

Hardness ·Micro & Macro

Hardness testing is available when hardness or heat-treatment condition is a defined project requirement.

Density measuring apparatus with water bath

Density ·Archimedes

Water-bath density measurement supports density verification when it is part of the agreed material or process control plan.

Universal testing machine for tensile strength

Tensile ·UTM

Universal testing equipment supports tensile-property verification on agreed specimens or coupons when required by the project.

Metallographic cutter and polishing station

Metallography

Metallographic preparation and microscopy support microstructure review when required by the material specification or validation plan.

Surface roughness measuring machine

Surface Roughness

Surface-roughness measurement is available for functional or cosmetic surfaces when a roughness requirement is defined on the drawing or specification.

SINTS engineer reviewing part dimensions against drawing with digital caliper
People & Expertise

Manufacturing experience since 1995

SINTS has manufactured powder-based metal components since 1995, with PM as its manufacturing foundation and MIM supporting suitable complex parts today. That experience is most useful during DFM: separating realistic near-net-shape features from dimensions, surfaces or process risks that need secondary control.

  • Cross-functional support · engineering, production and quality teams work around the same project requirements
  • Training · role-specific training and controlled work instructions
  • Communication · international sales and engineering coordination for export programs
1995Manufacturing since
2Manufacturing bases
32Injection machines stated in current capability information
IATF16949Zhongshan PM scope
Showroom & Credentials

Use physical part references to support the DFM discussion

The showroom maintains physical references across multiple application families. When a useful comparable geometry exists, it can support engineering discussion; quotation and process selection are still based on the customer drawing and project requirements.

SINTS product sample showroom

Physical Part Reference Library

The showroom is a working reference library for customer and engineering discussions. Comparable parts may help illustrate geometry, materials or finishing routes, but each new project is reviewed from its own drawing and requirements.

  • Physical references span multiple component geometries, materials and finishing routes
  • Component samples for geometry and process review
  • Availability and discussion scope follow confidentiality and project requirements
IATF 16949Zhongshan PM scope
ISO 9001Quality management system
Since 1995Manufacturing experience
Drawing-BasedDFM and process review
Factory in Motion

See the lines run.

From raw powder to finished part — captured on the SINTS floor in Zhongshan.

Powder metallurgy production lineShort factory-floor reference: pressing, handling and production flow.
From metal powder to componentsProcess overview for powder-based component production.
Premium coffee portafiltersProduct-focused reference for coffee-machine metal hardware.
Tiny part, massive impactShort-form reference for precision metal components and applications.
MIM production on the factory floorFactory-floor reference for injection, handling and production operations.
Captured on the SINTS floor in Zhongshan · English narration

Want to audit the factory in person?

On-site supplier audits can be arranged with the relevant production and quality teams. Scope, timing and requested records are coordinated in advance.

Frequently Asked Questions

Practical answers for OEM sourcing and engineering teams.

Where is the SINTS factory located?

Fusha Industrial Garden, Fusha Town, Zhongshan City, Guangdong, China.

Can I visit or video-tour the factory?

On-site supplier visits and video-based factory reviews can be coordinated with the relevant teams; scope and timing are confirmed in advance.

What equipment is in the plant?

Factory resources include MIM injection equipment, vacuum sintering, CNC finishing, dimensional inspection and supporting quality equipment. The route used for a specific part is confirmed during project review.

Is the factory certified?

Zhongshan Sints Powder Metallurgy Co., Ltd. holds IATF 16949:2016 certification for manufacture of powder metallurgy products. ISO 9001 is stated in current SINTS company materials; certificate scope documents can be supplied during qualification.

Component references

Connect the requirements to a real part