TRUMPF Type Size I OB11×20 Obround Lower Die
TRUMPF Type Size I OB11×20 obround lower die for precision sheet metal punching. The sample shown features an obround profile measuring 11 mm wide × 20 mm long. The OB11×20 specification is a production sample used to demonstrate our tooling capability; different sizes, profiles and die clearances can be customized according to customer drawings, sheet material and thickness.
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Description
The TRUMPF Type Size I OB11×20 Obround Lower Die is manufactured for precision sheet metal punching applications using TRUMPF-style Size I punch tooling systems. As the lower die of the punch-and-die combination, it provides the corresponding die opening required for accurate shearing of the sheet material.
The product shown here is an OB11×20 obround punching die manufactured as a representative sample. In this specification, OB identifies the obround profile, while 11 × 20 mm represents the nominal profile dimensions: 11 mm wide and 20 mm long.
The OB11×20 specification is only an example of our manufacturing capability. Different obround dimensions, standard hole profiles and special-shaped punching dies can be manufactured according to customer requirements.
Key Features
- Designed for TRUMPF Type Size I / Size 1 punch tooling systems
- OB11×20 obround lower die shown as a production sample
- Nominal profile dimensions: 11 × 20 mm
- Precision-machined die opening and cutting geometry
- Suitable for precision sheet metal hole and profile punching
- Different obround dimensions available
- Round, square, rectangular and other punching profiles can be manufactured
- Special-shaped punching dies available according to customer drawings
- Die clearance can be customized according to material and sheet thickness
- Suitable for both standard and customized punching applications
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Punching Lower Die |
| Tooling System | TRUMPF Type Punch Tooling |
| Tool Size | Size I / Size 1 |
| Sample Profile | Obround / Oblong |
| Shape Code | OB |
| Sample Size | OB11×20 |
| Nominal Width | 11 mm |
| Nominal Length | 20 mm |
| Other Sizes | Customizable |
| Available Profiles | Round, Square, Rectangle, Obround & Special Shapes |
| Die Clearance | Customized according to material and sheet thickness |
| Custom Profile | Available according to drawing |
| Application | Precision Sheet Metal Punching |
OB11×20 Obround Punching Profile
The OB11×20 lower die is designed around an obround punching profile consisting of two straight sides connected by rounded ends.
The designation can be understood as:
- OB – Obround profile
- 11 mm – Nominal width
- 20 mm – Nominal overall length
Obround or oblong holes are commonly used in sheet metal components where an elongated opening is required for mounting, positioning, alignment or adjustment.
The 11 × 20 mm dimension shown on this page is not a fixed product limitation. Other widths and lengths can be manufactured according to the required punching profile.
Precision Lower Die for Punch and Die Systems
During sheet metal punching, the punch and lower die work together to shear the material and create the required hole or profile.
For this reason, the lower die must match not only the required punching geometry but also the appropriate die clearance for the application.
When ordering a custom TRUMPF Type punching die, customers can provide:
- Required hole shape
- Hole dimensions
- Sheet material
- Material thickness
- Punch specification
- Workpiece drawing
Based on these parameters, the lower die can be manufactured with the required profile and clearance.
Custom Die Clearance for Different Sheet Materials
Die clearance is an important parameter in a punch-and-die system and should be selected according to the material being processed and its thickness.
Therefore, two punching dies with the same nominal OB11×20 profile may require different die openings when they are intended for different sheet materials or thicknesses.
We can customize the die clearance according to the customer's actual punching conditions, making the tooling suitable for different sheet metal fabrication requirements.
Standard and Custom Punching Die Shapes
Our manufacturing capability is not limited to the OB11×20 obround profile shown in these photographs.
TRUMPF Type punching dies can be produced in a wide range of profiles, including:
- RO – Round
- SQ – Square
- RE – Rectangle
- OB – Obround / Oblong
- Slots
- Polygonal profiles
- Notching profiles
- Keyhole-type profiles
- Irregular contours
- Special-shaped punching profiles
If a standard profile cannot meet the requirements of the sheet metal component, customers can provide a DXF, CAD drawing or finished-part drawing for custom tooling design.
The shape, dimensions and die clearance can then be manufactured according to the actual punching application.
Typical Applications
TRUMPF Type Size I punching dies can be used for producing holes and special profiles in:
- Electrical cabinets and switchgear
- Control panels
- Sheet metal enclosures
- Machinery covers and guards
- Equipment housings
- HVAC sheet metal components
- Metal cabinets
- Mounting plates and brackets
- Automotive sheet metal components
- Industrial equipment panels
- Custom fabricated sheet metal products
The OB11×20 obround punching die is particularly suitable for applications requiring elongated mounting or positioning holes, while customized profiles can be manufactured for more complex components.
Custom TRUMPF Punching Dies from Your Drawing
The OB11×20 Size I lower die displayed here is a sample rather than a limitation of our product range.
For custom punching applications, customers can send us the required dimensions or provide the sheet metal component drawing. Based on the required punching profile, sheet material and thickness, we can manufacture a suitable lower die with the corresponding dimensions and die clearance.
From conventional round, square, rectangular and obround dies to complex special-shape punch and die tooling, customized solutions are available for different sheet metal punching requirements.
