Powdered & Sintered Metal Parts

Allied Sinterings Inc.’s skilled team of professionals have been manufacturing powdered and sintered metal products since 1959. Using high-quality powders and materials, our competency with complicated and intricate geometries is well-known and respected among customers in the telecom, automotive, medical, and industrial equipment industries.

Our Danbury plant houses three sintering furnaces and 42 high precision German-engineered Dorst Compacting Presses with capacities ranging from ½ ton to 50 tons. We also have a complete in-house tool room and a complete tumbling/finishing department, allowing for the drilling and tapping of the fine components and parts we manufacture. 

Click to ExpandPowdered & Sintered Metal Parts

Sintered Metal Parts & Materials

Small metal gears, cams, and sprockets are key components in high-tech medical devices, high-voltage circuit breakers, and more. Not only do these small parts require less energy and material to produce, but they also enable the production of smaller and lighter machinery. Typical products include: 

We manufacture assemblies, sub-assemblies, tools, circuit breaker components, and medical devices from the following materials:

  • Custom-blended powders
  • Copper-infiltrated materials
  • Copper steel
  • Steel
  • Brass powders

Allied Sinterings’ environmentally-controlled facilities help to ensure accurate measurements. We use computer-supported statistical process control, fully-calibrated process monitoring, and a Red Line gear checking double flank machine to check for defects and integrity. This allows us to manufacture precision parts with outside diameters up to 1.25 inches, heights up to 1 inch, and tolerances of ±0.001 inch. 

Powder Metallurgy Process 

Powdered metals are powdered metal alloys formed through compression and heat. Common metals are stainless steel, copper, brass, bronze, and iron, all of which can be mixed with other alloys to achieve  the material’s desired properties. Powdered metals are highly versatile in terms of material combinations, mechanical properties, and customization. Powder metallurgy is also a highly repeatable process that creates strong, cost-effective components.

Powder metallurgy is also quicker than other manufacturing techniques. It consists of three main steps: selecting the powder composition, compaction, and sintering.

Choosing the metals that will go in your components will depend on your application’s performance requirements. Through the aid of lubricants, the selected materials are compacted into a die. The pressure gives the alloy “green strength,” which makes it strong enough to handle but still requires sintering. Sintering heats the components just below the melting point to bond the metal particles together and evaporate the lubricating material.

The sintered parts are then ready for additional finishing or heat treatments to improve its desired qualities. An added benefit of powder metallurgy is that it is eco-friendly, as it limits production waste to just 3% and creates harmless byproducts: nitrogen and hydrogen. 

Powdered and Sintered Metal Parts from Allied Sinterings

Compared to traditional metalworking, powder metallurgy produces better part quality and uniformity, improved turnaround times, and reduced production costs. Powdered metal parts can be customized for various applications and made with tight tolerances, which are essential for noiseless gear applications. 

With our precision compacting technologies and process monitoring systems, we can work with complex geometries and meet even the strictest criteria. For more information on sintered and powdered metals, contact us today.

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AGMA Quality 8 Gears
Fine-Pitched Gearing: 120 Diametral Pitch
Gear Boxes
Precision Planetary Drives
Medical Device Assemblies, Sub-Assemblies
Power Tools

Remote Controls
Fire Arms
Air Bag Components
Circuit Breaker Components

  • 42 High Precision German Engineered “Dorst” Compacting Presses: 1/2 ton – 50 metric ton capacity
  • 3 Sintering Furnaces
  • Complete In-house Tool Room
  • Complete Tumbling/Finishing Department
  • Drilling & Tapping
  • Oil/Plastic Impregnation
  • CAD Facilities
  • Computer Supported S.P.C.
  • Fully Calibrated Measuring & Testing Equipment

Green Process
Holding Tight Tolerances

Low Cost to Manufacture for High Volume
Net Shape Process

  • Copper Infiltrated Materials
    Custom Blending of Powders
    Stainless Steel
  • SS-304NI-30 Stainless Steel
  • SS-316NI-25 Stainless Steel
  • Brass
  • CZ-1000 90/10 Brass
  • Straight Iron NI and CU Steels
  • FN-0208 Nickel Steel
  • FLN-4205 Loy Alloy Steel
  • FC-0208 Copper Steel
  • F-0008 Carbon Steel
  • FLC2-4808 Sintered Hardened
  • These materials can also be secondary heat treated.
Press Tonnage
  • 0.5 to 50 Tons
Outside Diameter
  • Up to 1.25 in.
  • Up to 1 in.
  • ± 0.001 in.
  • Environmentally Controlled Facilities for Accurate Measurement
    Computer Supported S.P.C.
    Fully Calibrated Process Monitoring

Red Line Gear Checking Double Flank Machine
Hardness Testing
Density Checking

Additional Services
  • Drilling & Tapping
    Vibratory Tumbling
    Milling & Other Machining
    Heat Treating

Cu, Oil & Plastic Impregnation
Reaming & Other Hole Sizing
90% of Tooling Maintenance In-house

Engineering Services
  • Modeling
    Design for Manufacturing

Powdered Metal Conversion Engineering
Customer Training

Production Volume
  • 500 Piece Minimum
    Low Volume
    High Volume
Typical Lead Time
  • Fast Reaction to RFQ
    Short Lead Times

Quoted on a Job by Job Basis
Rush Services Available

Additional Information

Industry Focus

Power Tool

Medical Devices
Consumer Products
Industrial Equipment

Industry Standards

ISO 9001:2008 Certified


Embrace Lean Manufacturing Principles
J.I.T, On Time Delivery

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