Metal Injection Molding Hardware Accessories

Metal Injection Molding (MIM) – A Mass Production Solution for High-Precision Complex Structural Parts

Leveraging our self-developed metal powder and mature MIM (Metal Injection Molding) technology, we provide high-consistency, low-cost, high-volume precision metal structural component manufacturing for automotive, electronics, medical, sanitary ware, and pipe fitting consumer products , offering a one-stop delivery service from materials and feedstock to finished products.

Capabilities Overview

Molding process	Metal injection molding (MIM)
Suitable materials	304L, 316L, 17-4PH, 440C, iron-nickel alloy, copper alloy, titanium alloy, cobalt-chromium alloy, pure nickel Ni200, etc.
Maximum product size	160 mm × 160 mm × 65 mm
Product weight	0.1 g – 700 g
Dimensional accuracy	±0.02 mm – ±0.1 mm
Mass production lead time	10–25 days
System certifications	ISO9001, RoHS, REACH, MSDS

Detailed Ability Introduction

1. Molding process

Metal injection molding (MIM) mixes metal powder with a binder to form a feedstock, which is then injection molded, catalytically degreased, and vacuum sintered to obtain high-density, high-precision, and complex-shaped metal structural parts. It is particularly suitable for small parts, high-volume production, and highly complex products.

2. Available materials

Stainless steel series	304L, 316L, 17-4PH, 440C G19 (high-strength steel )
Iron-nickel soft magnetic alloys	FeNi8, FeNi30, FeNi50
Copper alloys	pure copper, Cu20, Cu40
Titanium alloy	TC4 (Ti-6Al-4V)
Cobalt-chromium alloy	F75
Pure nickel and special alloys	Ni200 (N6/N02200)

3. Key Indicators for Powder and Feed

Particle size distribution	D10 = 2–6 μm, D50 = 8–12 μm, D90 = 18–25 μm
Tap density	4.5–5.0 g/cm³
Sintering shrinkage rate	15 % –18%
Sintered density	96%–98.5%

Post-processing and Quality Inspection

1. Post-processing is possible.

Vacuum sintering, hydrogen sintering , argon sintering

CNC finishing and internal hole grinding

Polishing, sandblasting

passivation,

17-4PH age curing (H900)

2. Quality and Testing Capabilities

End-to-end quality control	Incoming Quality Control (IQC) / In-process Quality Control (IPQC) / Finished Product Quality Control (FQC)
Dimensioning inspection	coordinate measuring machine, 2.5D projector, height gauge
Performance testing	density, hardness, tensile strength, salt spray test
Composition analysis	spectrometer, carbon and sulfur analyzer, oxygen, nitrogen and hydrogen analyzer
Microscopic analysis	SEM (Scanning Electron Microscope), Particle Size Analyzer

Application Industries and Typical Cases

Automotive electronics	sensor brackets, connectors, solenoid valve structural components
Consumer electronics	liquid filler caps, shielding components, precision structural components
Medical devices	surgical instruments, minimally invasive accessories, implantable structural components
Industrial equipment	small module gears, miniature structural components, corrosion-resistant components
New energy	battery structural components, seals, and conductive connectors

MIM Design Guidelines

Recommended wall thickness: 1.2–2.5 mm , with a thickness difference not exceeding 2:1.

To avoid sharp corners, it is recommended that the fillet radius (R) be ≥ 0.2mm.

The holes should be made as continuous as possible, with a minimum diameter of Φ0.5mm.

A draft angle of ≥0.5° facilitates demolding and ensures dimensional stability.

The length-to-thickness ratio of the cantilever should be ≤5:1 to prevent sintering deformation.

Quotation and Cooperation Process

The client provides 2D/3D drawings, annual demand, and surface requirements.

Free DFM Manufacturability Analysis

Materials, process, precision, and delivery date confirmation

Mold making and sampling, customer confirmation

Contract signing, mass production and delivery

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