Custom Desktop Rotary Dot Peen Marking Machine for Stainless Steel Flanges
Chongqing Zixu Machine Works secured a new overseas flange manufacturer order at the Canton Fair after presenting a compact rotary dot peen marking solution for heavy stainless steel flanges. The customer needed permanent identification on flanges up to 500mm in diameter and 70kg in weight, but its workshop layout could not accommodate a full floor-standing marking station.

Customer Requirement: Heavy Stainless Steel Flanges in a Compact Workspace
The customer’s parts are stainless steel flanges with diameters up to 500mm and weights up to 70kg. The marking process needed to create durable dot peen characters around the flange circumference while keeping the equipment compact enough to mount on the customer’s existing workbench.
| Workpiece material | Stainless steel flange |
| Maximum diameter | 500mm |
| Maximum weight | 70kg |
| Marking method | Dot peen marking |
| Installation requirement | Desktop/workbench mounted compact rotary system |
Why the Customer Chose Zixu at the Canton Fair
At the exhibition, the customer asked whether Zixu had a dedicated solution for flange marking. Zixu showed its accumulated application experience in valve and flange manufacturing, including work with Mai Ke Valve and Neway Valve. These references helped the customer evaluate Zixu’s ability to deliver reliable marking systems for demanding flange production environments.
For readers comparing similar applications, Zixu’s existing valve and flange marking solutions, handheld flange marking machine, and horizontal and vertical flange marking machine pages provide additional context for different flange production layouts.

The Custom Solution: Desktop Mount, Reducer, and Three-Jaw Chuck
Instead of a full-size integrated workstation, Zixu’s engineering team developed a desktop-mounted rotary configuration. The system can be installed on the customer’s workbench, reducing floor-space demand while preserving the key functions of a flange marking workstation.
- Desktop mounting format: designed for quick installation on an existing workbench.
- Reducer-driven rotation: provides controlled torque for heavy flanges up to 70kg.
- Custom three-jaw chuck: centers and holds flanges with different diameters up to 500mm.
- Dot peen marking head: creates permanent indentation marks on stainless steel surfaces.
Key Advantages for Flange Manufacturers
The compact structure directly answers the customer’s floor-space constraint. It also keeps the workpiece rotation controlled and repeatable, which is important when marking circular flange surfaces. For manufacturers already handling heavy valves, pipe flanges, and related metal components, this type of custom rotary setup can be easier to integrate than a large cabinet-style marking station.
| Space saving | Workbench mounting avoids a large floor-standing cabinet footprint. |
| Heavy-load support | The reducer and chuck system supports flanges up to 70kg. |
| Flexible diameter range | The chuck accommodates flange diameters up to 500mm. |
| Fast installation | The compact unit can be positioned on the customer’s existing table. |
| Proven application path | The same dot peen marking principle is used across valve and flange production applications. |

Why Dot Peen Marking Fits Heavy Stainless Steel Flanges
Dot peen marking forms permanent indentation marks mechanically, making it suitable for heavy metal workpieces where long-term traceability matters. On stainless steel flanges, dot peen marks can remain readable through handling, storage, coating steps, and demanding industrial use. The process is also less sensitive to surface reflectivity than laser marking, which can simplify production for bright stainless steel parts.
For a wider comparison of marking methods, see CNMarking’s guide to dot peen vs. laser marking. For related product context, the desktop flange marking machine category is the closest family for this custom compact system.
From Exhibition Inquiry to Custom Order
This project shows how a focused exhibition inquiry can become a custom engineering order when the supplier can connect customer requirements with proven application experience. The customer did not need a generic marking machine. It needed a compact rotary system, suitable workholding, heavy-load support, and a marking process appropriate for stainless steel flange traceability.
Zixu will continue adding product-page links and video evidence as the final product media becomes available. The current case records the confirmed customer requirement and custom solution structure so similar valve and flange manufacturers can evaluate whether a desktop rotary dot peen system fits their own production constraints.
FAQ
What flange size can this custom system support?
The source requirement is stainless steel flanges up to 500mm in diameter and up to 70kg in weight. Final configuration should always be confirmed against the customer’s actual flange drawings, marking area, and handling method.
Why use a three-jaw chuck?
A three-jaw chuck helps center and hold round flange workpieces during rotary marking. Proper centering improves consistency when the mark follows the flange circumference.
Is this a standard product or a customized machine?
This case is a customized desktop rotary configuration based on Zixu’s flange and dot peen marking experience. The final product link can be added once the completed product materials and video are available.

