TRUMPF Type Size I OB9×20 Obround Lower Die
TRUMPF Type Size I OB9×20 obround lower die for precision sheet metal punching applications. The sample shown features an obround profile measuring 9 mm wide × 20 mm long and demonstrates our manufacturing capability for TRUMPF Type punching dies. Different die sizes, clearances and punching profiles can be customized according to customer drawings, sheet material and thickness.
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Description
The TRUMPF Type Size I OB9×20 Obround Lower Die is a precision punching die manufactured for TRUMPF-style Size I punch tooling systems. Working together with the corresponding punch, the lower die supports accurate cutting of the required profile during sheet metal punching.
The product shown on this page is an OB9×20 obround punching die manufactured as a sample of our custom tooling capability. In this designation, OB represents an obround profile, while 9 × 20 mm identifies the nominal profile dimensions: 9 mm wide and 20 mm long.
The OB9×20 specification shown is an example rather than a fixed limitation. We manufacture TRUMPF Type lower dies in different sizes, profiles and die clearances according to the customer's punching requirements.
Key Features
- Designed for TRUMPF Type Size I / Size 1 punch tooling systems
- OB9×20 obround profile shown as a production sample
- Nominal profile size: 9 × 20 mm
- Precision-machined cutting geometry
- Suitable for sheet metal hole and profile punching
- Different die sizes and profiles available
- Die clearance can be customized for different sheet materials and thicknesses
- Round, square, rectangular, obround and special-shaped dies available
- Custom punching dies can be manufactured according to customer drawings
- Suitable for both standard and non-standard sheet metal 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 | OB9×20 |
| Nominal Width | 9 mm |
| Nominal Length | 20 mm |
| Die Size | Customizable |
| Die Clearance | Customized according to material and thickness |
| Available Profiles | Round, Square, Rectangle, Obround & Special Shapes |
| Custom Profiles | Available according to drawing |
| Application | Precision Sheet Metal Punching |
OB9×20 Obround Lower Die
The OB9×20 lower die shown here is designed around an obround punching profile. Obround openings combine straight parallel sides with rounded ends and are commonly used where an elongated opening is required instead of a conventional round hole.
The designation can be understood as:
- OB – Obround profile
- 9 mm – Nominal profile width
- 20 mm – Nominal overall profile length
This specification is used as a physical sample to demonstrate our manufacturing capability. Other obround dimensions can be produced according to the required punched profile.
Lower Die for TRUMPF Punch Tooling
The lower die is an important part of a punch and die set. During punching, the punch enters the die opening and shears the sheet material to produce the required hole or profile.
For this reason, selecting an appropriate die clearance is important for punching quality and tooling performance.
We can manufacture the lower die according to the customer's:
- Sheet material
- Material thickness
- Required punching profile
- Hole dimensions
- Punch specification
- Required die clearance
This allows the punch and die combination to be matched more closely to the actual sheet metal punching application.
Custom Die Clearance
The opening of a punching die is not selected only according to the nominal hole dimensions. The required clearance between the punch and lower die also depends on the material being processed and its thickness.
Different applications may therefore require different die specifications even when the nominal punching profile is the same.
Customers can provide the material type and sheet thickness, and an appropriate die configuration can be manufactured for the application.
Standard & Custom Punching Die Shapes
Although this page displays an OB9×20 obround die, our TRUMPF Type punching dies are available in many other geometries.
Common profiles include:
- RO – Round
- SQ – Square
- RE – Rectangle
- OB – Obround / Oblong
- Slot profiles
- Polygonal profiles
- Notching profiles
- Keyhole-type profiles
- Irregular profiles
- Special-shaped punching dies
For non-standard profiles, customers can provide a DXF, CAD drawing or finished-part drawing. The required lower die geometry can then be manufactured according to the actual punching feature.
Typical Applications
TRUMPF Type Size I punching dies can be used for producing holes and profiles in sheet metal components such as:
- Electrical cabinets and switchgear
- Control panels
- Machinery enclosures
- Sheet metal cabinets
- Equipment housings
- HVAC components
- Mounting plates
- Metal brackets
- Automotive sheet metal parts
- Industrial machinery components
- Custom fabricated sheet metal products
The OB9×20 profile shown is particularly suitable for components requiring obround or elongated mounting holes, while other profiles can be customized for different sheet metal designs.
Custom TRUMPF Punching Dies from Your Drawing
In addition to standard punching dies, we manufacture custom TRUMPF Type punch and die tooling according to individual sheet metal applications.
Customers can send us the required hole dimensions or provide a workpiece drawing. Based on the drawing, sheet material and thickness, we can manufacture the corresponding punching die with the required profile, dimensions and die clearance.
The OB9×20 Size I die displayed on this page is therefore only one example of our production capability. Other sizes and special profiles can be manufactured for different punching requirements.
