Pentar Stamping at a Glance:


  • Stamping Presses up to 400 tons
  • Stamping Thickness 0.01-0.2″
  • Tolerance: +/- .005
  • Tonnage: Up to 400 Tons
  • Pieces Per Year: 25-1,000,000
  • Materials: Hot Roll, Cold Roll, Stainless Steel, Aluminum, Copper, Galvanized Steel, and Spring Steel
  • Quality: PPAP, APQP, PFMEA, Hardness Testing,  & Destructive
  • Secondary Services: Assembly, Welding, E-Coat, Powder Coat, Autophoretic Coating.
  • Annual Units Per Part Number From 500 to Over 1,000,000
  • Material capabilities of .015″ – .250″ thick and 24″ wide
  • Less than 5 parts Per Million Defective
  • 100% On-Time Delivery
  • In-House Welding and Assembly
  • In-House Tool Room

Our Goal

At Pentar Stamping our goal is to give our customers a high quality precision metal stamping no matter what the size or annual volume.  Our determination to provide a high quality metal stamping begins with the development of the product and doesn’t end until it is delivered to your door. Every member of our staff has been trained to ensure that a quality metal stamping is being produced throughout the entire process. We are focused on working with you to create an economical product with consistent and lasting quality.

Our team is experienced in manufacturing precision metal stampings for both long and short production as well as emergency work. Our knowledge gained from years of completing emergency production runs and take over work from existing production, means that we know what complications can arise throughout the processes and life of a product. We have been successful in avoiding many of these complications by utilizing long-term knowledge and dedication to quality. 

Contact Pentar today to receive a quote on your next precision metal stamping project.  After contacting Pentar, our team will work diligently to develop a custom quote based on information you provide us. Our request for quote form makes it easy for you to submit specifications. Our simple upload tool allows you to submit CAD files and/or part prints for more complete quotes.  

The Metal Stamping Process

Stamping (also known as pressing) is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape. Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press, blanking, embossing, bending, flanging, and coining. This could be a single stage operation where every stroke of the press produces the desired form on the sheet metal part, or could occur through a series of stages. The process is usually carried out on sheet metal, but can also be used on other materials, such as polystyrene.

Press Equipment


  • 80 Ton Gap Frame Press  –  39.4 x 23.6 x 10.65-13.8  –   5.12 Stroke
  • 200 Ton Gap Frame Press  –  95.2 x 33.4 x 14.9-19.6  –  9.84 Stroke
  • 200 Ton Straight Side Press  –  95.2 x 33.4 x 14.8-19.6  –  9.84 Stroke
  • 300 Ton Straight Side Press  –  120 x 50 x 24.0-36.0  –  16.0 Stroke
  • 400 Ton Straight Side Press  –  108 x 60 x 36.0-12.0  –  17.0 Stroke


  • Bending – the material is deformed or bent along a straight line.
  • Flanging – the material is bent along a curved line.
  • Embossing – the material is stretched into a shallow depression. Used primarily for adding decorative patterns.
  • Blanking – a piece is cut out of a sheet of the material, usually to make a blank for further processing.
  • Coining – a pattern is compressed or squeezed into the material. Traditionally used to make coins.
  • Drawing – the surface area of a blank is stretched into an alternate shape via controlled material flow.
  • Stretching – the surface area of a blank is increased by tension, with no inward movement of the blank edge. Often used to make smooth auto body parts.
  • Ironing – the material is squeezed and reduced in thickness along a vertical wall. Used for beverage cans and ammunition cartridge cases.
  • Reducing/Necking – used to gradually reduce the diameter of the open end of a vessel or tube.
  • Curling – deforming material into a tubular profile. Door hinges are a common example.
  • Hemming – folding an edge over onto itself to add thickness. The edges of automobile doors are usually hemmed.

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