Powder Metallurgy Compaction Automotive Synchronizer Ring

This product is a powder metallurgy compaction automotive synchronizer ring, a core component of automotive transmission synchronizers. The synchronizer ring uses friction to synchronize the speed of gears during shifting, ensuring smooth gear engagement. The powder metallurgy compaction process presses metal powder into shape in a precision die under high pressure, then sinters at high temperature to metallurgically bond particles, obtaining a high-density, high-strength ring blank. This process is particularly suitable for synchronizer rings with complex shapes, large batches, and high precision. It enables one-piece forming of gear teeth, conical surfaces, oil grooves, and splines, reducing machining and cost.

We use high-quality copper-based alloy powder or iron-based alloy powder, with density up to 6.6~6.9 g/cm³, tensile strength 400-800 MPa, hardness HRC 20-45 (adjustable). Surfaces are sized and post-processed as needed, dimensional tolerance ±0.02-0.05mm, high tooth accuracy, smooth shifting. Copper-based rings offer excellent wear resistance and thermal conductivity, while iron-based rings offer higher strength and load capacity. Surface treatments include sandblasting, phosphating, and black oxide to meet different anti-rust and friction requirements.

Product Parameter (Specification)

Product Feature And Application

High Strength: Powder metallurgy compaction yields high density and tensile strength up to 800 MPa, meeting lock security requirements

High Precision: Precision die forming ensures excellent dimensional consistency and smooth assembly

Complex Shape in One Piece: Slopes, slots, and guide holes formed in one pressing, reducing machining

Wear & Corrosion Resistance: Stainless steel or plated surfaces available for different environments

Cost Advantage in Mass Production: Unit cost much lower than machining

Material Versatility: Iron-based, stainless steel, alloy steel, etc.

FAQ

Q1Are you a trading company or a manufacturer?

A1We are a manufacturer with our own R&D center and production base in Nansha, Guangzhou. We specialize in powder metallurgy (PM) and metal injection molding (MIM) components.

Q2What relevant qualifications and certificates do you have?

Q2We hold IATF 16949:2016 for automotive quality management, ISO 9001:2015 for quality management, ISO 14001 for environmental management, and multiple invention patents.

Q3Do you make custom products? What should I provide?

A3Yes, we offer full custom manufacturing from design to production.  We can produce according to your specifications, drawings, or samples.To start, please provide at least CAD drawings (2D) or 3D models (e.g., STEP, IGES, Pro/E). Our engineering team will then conduct DFM analysis and propose optimized solutions.

Q4What's the main products in your factory?

A4We specialize in precision metal components made through Metal Injection Molding (MIM) and Powder Metallurgy (PM). Our key products include:

Meat grinder plates & blades ,Gears (spur, helical, bevel, etc.),Porous (oil-impregnated) bearings,VVT rotors & stators,Chainsaw clutches,Structural parts & brackets,Lock components,SIM card slots & electronic housings,And other custom precision parts.

Q5How long it will take on customized samples production?

A5After we confirm the final drawings, the mold will take approximately 18 days, and samples will be delivered within 7 days. We will provide 20-30 samples for your testing, with  sampling period of approximately 25 days.

Production Details