Powder Metallurgy Service

CNC Machining Is Too Expensive

Cutting complex shapes from solid bar wastes material and drives up unit cost — especially at 1,000+ pieces.

Inconsistent Batch Quality

One batch fits, the next does not. Poor dimensional control leads to assembly line rework and angry customers.

Supplier Communication Gaps

Language barriers, missed deadlines, and unclear inspection reports make sourcing from overseas stressful.

Powder Metallurgy press-sinter process at YiguProto China factory — Press-sinter process: from metal powder to finished part in one streamlined workflow

As your China manufacturer and supplier, YiguProto gives you one accountable partner from the first quote to the final shipment.

Near-net-shape forming — complex shapes pressed in one step, minimal machining
Material savings >98% — almost no scrap, lower unit cost at volume
Self-lubricating controlled porosity stores oil for bearings and bushings
Batch-to-batch consistency — every part meets the same spec
Factory-direct pricing — no trading company markup

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01

Powder Mixing

We select the right metal powder, lubricant, and alloying elements for your part's application. A stable blend improves formability and final strength.

02

Compaction (Pressing)

The mixed powder fills a precision die and is pressed under high pressure into a “green compact” — already close to the final shape.

03

Sintering

The green compact is heated in a controlled furnace with a protective atmosphere. Metal particles bond, giving the part strength and structure.

04

Sizing & Calibration

For parts with tight assembly needs, we calibrate critical dimensions through sizing to hit the exact tolerance.

05

Secondary Machining

Threads, precision holes, keyways, chamfers, and mating surfaces are machined to meet your functional dimensions.

06

Heat Treatment & Surface

Carburizing, hardening, or carbonitriding for wear resistance. Then oil impregnation, blackening, plating, or coating as needed.

Feature	Capability
Process	Press & sinter (powder metallurgy)
Standard Linear Tolerance	±0.05 mm
Diameter Tolerance	±0.01 mm (OD), ±0.03–0.05 mm (ID)
Part Density	86–92% of solid
Max Part Weight	Up to 2 kg (geometry dependent)
Materials	Iron-based, stainless steel, copper/bronze, alloy steel
Tooling Lead Time	10–20 days
Tool Life	20,000–200,000 cycles
FOTS (First Articles)	7–15 days after tool approval
Production Lead Time	15–30 business days
Volumes	Prototype to high-volume mass production
MOQ	No strict minimum — from 1 piece

Iron-Based

The most common choice. High strength, hardness, and wear resistance. Ideal for structural parts, gears, and bearings.

Stainless Steel

304/316L, 410/420, 17-4PH. Corrosion resistance, rust prevention, and a clean appearance for demanding environments.

Copper & Bronze

Controlled porosity holds lubricating oil after impregnation. Great for self-lubricating bearings and bushings.

Alloy Steel

Transmission parts and load-bearing structures. Heat treatable for higher hardness, wear resistance, and longer service life.

Gears

Teeth formed in a single press — no hobbing needed. Lower cost per unit at volume.

Bushings & Bearings

Porous structure stores oil for self-lubrication. Low friction, stable ID/OD.

Sprockets

Tooth profile, hub, and bore formed in the die. Combined with heat treatment for wear life.

Pump Rotors

Oil pump, inner/outer, and hydraulic gears. Precise tooth profile and concentricity.

Structural Components

Complex shapes formed in one step. Less machining, less material waste.

Lock Components

Small complex metal parts with contours, holes, steps, and functional surfaces.

Automotive Parts

Engine, transmission, and seating components. Cost-effective with batch consistency.

Electrical Contacts

Copper-based alloys for conductivity, heat dissipation, and wear performance.

Oil Impregnation

Vacuum oil filling for self-lubricating bearings.

Black Oxide

Corrosion resistance with a clean black finish.

Electroplating

Zinc, nickel, or chrome for rust and wear protection.

Powder Coating

Durable color coating for appearance and protection.

Heat Treatment

Carburizing, hardening, carbonitriding for load-bearing parts.

Steam Treatment

Seals surface pores and improves rust resistance.

Resin Impregnation

Seals porosity for pressure-tight applications.

Machining & Grinding

Threads, holes, keyways, and faces to final tolerance.

One Accountable Partner

Factory-direct from our own China facility. No trading company in the middle, no mixed messages.

DFM Before You Order

Engineers review every drawing and flag risks early — fewer mold changes, less trial-and-error cost.

Full Process Control

Powder blending, pressing, sintering, sizing, and finishing all managed in-house for traceability.

Inspection Reports

CMM and dimensional reports, material certificates, and PPAP docs supplied on request.

English-Speaking Team

Clear, fast replies from a dedicated project engineer who understands both the tech and your deadline.

Multi-Process Option

Need CNC, MIM, casting, or forging instead? We quote across processes and recommend the best fit.

Automotive

Engine, transmission, seating, and steering components. Cost-effective with the consistency high-volume lines demand.

Industrial Machinery

Gears, sprockets, structural parts, and pump components for automation, robotics, and heavy equipment.

Power Tools & Appliances

High-wear small parts made affordable and consistent for consumer and professional-grade products.

1

Send Your Drawings

Upload STEP, STP, IGES, or PDF files plus quantity and material notes.

2

Get Quote + DFM

Within 24 hours: clear pricing and engineer feedback on the design.

3

Approve & Sample

We build the tool and send first articles for your assembly test.

4

Mass Production

Approved tooling goes into volume run. QC and reports with every batch.

How fast can you make a quote?

Send your drawings or 3D files. Most quotes come back within a few hours on business days, never more than 24 hours.

Do you keep my files confidential?

Yes. All customer files and ideas are treated as confidential. We sign NDAs when needed.

Can you help with design for manufacturing (DFM)?

Yes. Our engineers review your design and suggest changes that cut cost, improve quality, or speed up delivery.

What is your minimum order quantity (MOQ)?

We support one-off prototypes and full production runs. There is no strict MOQ.

Do you offer free samples?

We can make samples for your approval. Cost depends on the process, and it is credited back on a production order.

What is your lead time for Powder Metallurgy?

Tooling takes 10–20 days. First articles (FOTS) take 7–15 days after tool approval. Mass production typically runs 15–30 business days depending on quantity and complexity.

Can you handle low and high volumes of Powder Metallurgy?

Yes. We support one-off prototypes, small bridge runs, and full production volumes from the same process.

What tolerances can Powder Metallurgy achieve?

Standard linear tolerance is ±0.05 mm. Diameter tolerance reaches ±0.01 mm (OD) and ±0.03–0.05 mm (ID). Sizing and secondary machining can tighten critical dimensions further.

What materials are available for powder metallurgy?

We work with iron-based alloys, stainless steel (304/316L, 410/420, 17-4PH), copper and bronze, alloy steel, and special alloys. Our engineers help you choose the right material for strength, wear, corrosion, or magnetic needs.

Struggling with High-Cost, Low-Consistency Metal Parts?