As the flagship of our precision mechanical production, we make T-slot Clamping Plates that can be used for a variety of operations. Made of G25 Cast Iron, they are supplied with all the accessories required for installation.

The Clamping Plates is a precision engineering product that is also widely used in general mechanics for various operations: from machining, to assembly, testing and in the execution of both static and dynamic tests such as test benches.

The Clamping Plates consists of a G25 Cast Iron fusion with Lamellar Structure, a material that lends itself both to vibration damping thanks to its structure and resistance to compression, guaranteeing the maintenance of flatness.

Clamping Plates with T-Slots

Another distinctive feature of the Clamping Plates is the presence of T-slots on the work surface, which are functional for modular clamping thanks to the sliding of dowels along the entire hollow surface.

A fundamental feature of this product is the possibility of adjusting its height during the installation phase, making this Precision Mechanical Industry Product suitable for all positioning requirements (anchoring to the floor, resting on columns or on electro-welded supports).

Adjustment is carried out directly from the work surface by means of special wells in the casting itself, into which the micrometric levellers for adjustment are inserted.

The Bonanomi Clamping Plates

Bonanomi's Clamping Plates are supplied with all accessories for installation, turnkey. Once the surface has been assembled and installed, we guarantee flatness according to DIN 876, hollow linearity and impermeability thanks to the special closing plates with OR.

The load capacities vary from 5 to 50 T/m2 depending on the thickness of the floor and the type of levelling system used.

Modularity is another product feature, as these planks can be assembled with each other both transversely and longitudinally by means of special processes that guarantee rigidity and impermeability.

As an alternative to our standard Precision Mechanical Industry Products shown in the catalogue, Bonanomi can produce any size, using any material, in order to better comply with the needs and requests of the final customer.

Clamping Plates: Applications in Industry

Thanks to their versatility, clamping plates are used across many areas of the mechanical industry. They serve as a stable base for the mechanical assembly of assemblies and sub-assemblies, as a reference surface for dimensional inspection, and as a support surface for setting up test benches for both static and dynamic testing. The T-slots make it possible to securely anchor workpieces of different shapes and sizes, turning the plate into a workstation that can be reconfigured according to each individual job.

Why Does Bonanomi Use G25 Cast Iron?

The choice of G25 cast iron is no coincidence: its lamellar structure provides excellent vibration damping and high dimensional stability over time. Compared with other ferrous alloys, lamellar cast iron offers very good resistance to compression and maintains flatness even under high and repeated loads — an essential quality for a precision engineering product expected to deliver consistent results over the years.

Not only Clamping Plates: discover other Bonanomi products

Not only Clamping Plates: discover other Bonanomi products!

In our Precision Mechanical Workshop, we also manufacture:

• Cubes and Clamping Towers
• Surface Plates 
• Dressing Plates
• Blocks and Control Cylinders 
• Clamping Squares
• Parallel Boxes
• Control Rules 
• Test Benches 

We also offer Third Parties Mechanical Processing (Outsourcing Services).

Frequently Asked Questions

What is a clamping plate and what is it used for?

A clamping plate is a cast iron work surface fitted with T-slots, used in general and precision mechanics to fix and position workpieces during machining, assembly, testing and test-bench operations. The T-slots allow modular clamping thanks to the dowels that slide along the entire surface.

What material is a clamping plate made of?

Bonanomi clamping plates are made of G25 cast iron with a lamellar structure, a material that combines excellent vibration damping with resistance to deformation under load. You can learn more about this material in our article on the differences in iron alloys: steel and cast iron.

What is the load capacity of a clamping plate?

Load capacities range from 5 to 50 T/m² depending on the thickness of the plate and the type of levelling system used. Height adjustment is carried out directly from the work surface, using the micrometric levellers inserted into the dedicated wells in the casting.

Can several clamping plates be joined together?

Yes. Bonanomi clamping plates are modular and can be assembled both transversely and longitudinally by means of dedicated processes that guarantee rigidity and impermeability, making it possible to build large work surfaces.

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