Dot Peening

Permanent markings are dot peened onto each part after it is cut, but before it is bent. Dot peening may be used for parts with or without powdercoat.

dot peening

Marking Area

The maximum area of each marking window for text is X=1.875" (48mm) (x) Y=1" (25.4mm)

Please Note: The text CANNOT be rotated to create a window that is X=1" (25.4mm) x Y=1.875" (48mm). However, customers can request smaller X and Y values for their text window - please inform our sales team if this is the case.


Positional tolerance of text is +/-0.125" (3.18mm) on x and y. Tighter tolerances are possible, but you should contact our technical support should this be necessary.

Thin Material

When requesting Dot Peen Marking on aluminum material thinner than 0.051" (1.30mm), ghosting or witness marks may appear on the reverse side of the print area. However, this is not an issue with other material (ie: Cold Rolled and Stainless Steel) above 0.048" (1.22mm)


We have the capability to add incremental serial numbers as part of a marking.

Information Required When Placing an Order

When placing an order with dot peening required, ensure you provide us with:

• Characters to be "peened"
• Character Size
• Specific Location of the Text; in particular, the location of the first character

Font Capabilities

Our system contains 5 different fonts with 2 dot pitches and variable text heights. We currently offer five font types:

• Varidot (default font)
• Varidot OCR
• 5x7 Dot
• 7x9 Dot
• 5x9 Dot OCR.

Our standard text heights are between 0.075" (1.86mm) to 0.150" (3.52mm). The following are maximum lines and characters varying by our standard text heights:


Dot Peening is a permanent marking method for applications requiring MIL-STD-130 (Table II).

This standard provides criteria for the selection of the application process, as well as all other specific requirements that will be part of the deliverable item, such as marking protocol, content, font size, type, location, etc.


Simply stating in the product definition data that the marking be in accordance with MIL-STD-130 is not sufficient. The item identification marking requirements must be determined by the Design and/or Acquiring Activity in their contractual instruments, and tailored to meet the needs of their specific application.

ProtoSpace is recognized solely and exclusively as the Manufacturer.

The customer is recognized as the Design Activity. They retain full design and quality assurance control, as well as full responsibility to the acquiring activity for the delivered product.

Let's Get Started

We believe the onboarding process should be as simple and hassle-free as possible.

Our team can process all of your paperwork to get the ball rolling in order to serve your custom manufacturing needs.