Punch, WT-Style MT20i-8

EXTREME LINE

Included RLP - Zinc Free coating.

Double coating Rolleri RLP-Zinc Free merges the already extraordinary performance of RLP-HPL, with self-lubricating and anti-adhesive layer based on MoS2 (Molybdenum Disulphide).
Developed in aerospace from the need to find an alternative to traditional lubricants, revealed excellent properties that have made him, as a result, very interesting for a variety of application fields.
This is a coating with a very low coefficient of friction, and it's able to release traces of wear lubricants (that is no abrasive particles are created by the wear of the coating).
When working on particularly rough surfaces, Rolleri RLP-Zinc Free gradually becomes smoother during use.
Due to these properties this treatment is particularly indicated not only to work with high resistance materials, but also for processing on galvanized sheet, aluminum or copper, because it is able to prevent "galling" process. RLP-Zinc Free can be easily re-coated.

In order to help you choose the right tool for your application, Rolleri offers this guide:

• Hit rate application: Extreme (>380 H.P.M.)
• Machine type: Servo Electric/High Speed Hydraulic
• Material type-Toughness: Hard (Tensile Strength > 45 kg/mm²)
• Material thickness: Thick (> 3 mm)
• Punching operation: Nibbling
• Amount of Hits for the Job: Big (>10000 hits)

SUPREME LINE

Included RLP-HPL coating.

Rolleri RLP-HPL technology was designed to give a universal answer to the more traditional processes giving the tools a constant efficiency and performance at the highest levels.
The particular characteristics of this layer are the extraordinary tenacity (thanks to the introduction of the Carbon within the layer) and the ability to express itself at its best in different applications, and specifically on highly resistant materials, like Stainless Steel.
RLP-HPL coating achieves the highest levels of adherence, making even more cohesive the combination tool + coating.
The highly compact layer of RLP-HPL is able to express in its 3 microns thickness high hardness values that represent a solid barrier against wear ensuring extraordinary performance.
Furthermore, its structure “multilayer” is composed of several hundreds of different layers that give better control of structural stress.

In order to help you choose the right tool for your application, Rolleri offers this guide:

• Hit rate application: High (200~380 H.P.M.)
• Machine type: Hydraulic
• Material type-Toughness: Medium (Tensile Strength 22~45 kg/mm²)
• Material thickness: Medium (1.5~3mm)
• Punching operation: Partial Hit (>50% of punch surface)
• Amount of Hits for the Job: Medium (5000~10000 hits)

POWER LINE

In order to help you choose the right tool for your application, Rolleri offers this guide:

• Hit rate application: Normal (<200 H.P.M.)
• Machine type: Mechanic
• Material type-Toughness: Easy (Tensile Strength 7~25 kg/mm²)
• Material thickness: Thin (<1,5 mm)
• Punching operation: Full Hit
• Amount of Hits for the Job: Small (<5000 hits)

STANDARD SHAPES AND KEY LOCATIONS

Key locations will be based on the table below unless otherwise instructed. (Die view from the top of a die).

If you need keys with different positions or in the case of special slices, let us know the key positioning required.

BACK TAPER ON THE SIDE OF THE PUNCH

This specification makes better performance for less touching area and less sticking material on the side face of punch body.

• Without extra charge for round punches
• +20% on shaped punches

EXTRA CHARGE FOR MINIMUM SIZE < 1,5 mm

If die shape has a minimum size of less than 1.5 mm, consider a extra charge of + 25%.