Headed punches ISO P_-PPNB / P_-PPN_ - ISO 8020

Material :

• Material A : High-speed steel HWS / 1.2379 / D2 / X155CrVMo12.1 
• Material B : High-speed steel HSS / 1.3343 / M2 / HS 6.5.2 / Z90
• Material E : ASPP23 / 1.3395 / M32 / HS 6.5.3
• Material S : M4 / 1.3351 / HS 6.5.4

Standard : ISO 8020 / NF E63-101

Dimensions :

• Diameter : from 4mm to 40mm
• Length : from 71mm to 120mm

Cylindrical head, 5mm thick.

Available shapes : Available as a blank or following our 6 standards catalog shapes. Others shapes can be made as special.

Coating : Standard coating : TIN, Alcrona (AlCrN), TICN, CrN, t-ac.

Other coating on request.

Hardness:

• Material A : 

Head 40 -50 HRc

Body 58 - 62 HRc

• Material B : 

Head 47 -57 HRc

Body 60 - 64 HRc

• Material E : 

Head 47 -57 HRc

Body 62 - 66 HRc

• Material S : 

Head 47 -57 HRc

Body 62 - 66 HRc

Benefits :

• Easy to install using the counterbore. The head is chamfered to ensure correct perpendicular alignment with the punch holder.
• Very precize orientation flat.
• Tight tolerance on the head thickness ensuring that the run out is reduced, resulting in less clearance and a greater head stregth.
• All our punches are engraved to your specifications for quick identification.

Tolerances :

• Body tolerance m5
• Length tolerance +1/0
• Cylindrical head thickness tolerance +0,1/0
• Cylindrical head diameter tolerance 0/-0,25
• Shape tolerance ± 0,01

Conception :

• The cylindrical head is hot forged for a better strength and durability.
• The body and shape are grinded with high precision.

Target application

Ideal for press tools or injection moulds.

Recommendations for use :

• Mounting : The headed precision punch is mounted in a punch retainers with counterbore.
• Cutting clearance : We recommand a cutting clearance between the die button and the punch corresponding to 10% of the thickness of the sheet being cut. (except special applications)

Maintenance recommendations :

• Regular cleaning
• Regular inspection
• Checking alignment with the die
• Regular lubrication

To order you need to indicate : 

1. The desired dimensions
2. Desired shape (except for blanks)
3. Shape dimensions (except for blanks)
4. The desired coating
5. Shape orientation
6. Standard alterations

Example : PB-PPNL-25-71-20-P24-W12,5-R2T0-TIN