Heavy duty headed punches with center dowel and ejector P_-PTFB / P_-PTF_
Heavy duty headed punches with center dowel and ejector P_-PTFB / P_-PTF_
The P_-PTF heavy duty headed punche with center dowel has a reinforced head to withstand high load and is directly tightened and centred on the tool plate.The ejector facilitates waste removal. Headed punches are mounted in a tool to cut, bend or form sheet We are machining our punches following your needs or drawing. They are also available as blank.
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Specifications
Material :
- Material B : High-speed steel HSS / 1.3343 / M2 / HS 6.5.2 / Z90
- Material S : M4 / 1.3351 / HS 6.5.4
Dimensions :
- Diameter : from 8mm to 32mm
- Length from 71mm to 100mm
Cylindrical head, 8mm 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 B :
Head 47 -57 HRc
Body 60 - 64 HRc
- Material S :
Head 47 -57 HRc
Body 62 - 66 HRc
Benefits :
- Dowel centering ensure greater precisiion in the punch location and remove the clearance/play with direct tightening.
- All our punches are engraved to your specifications for quick identification.
- Ejector for waste removal
Tolerances :
- Body tolerance m5
- Length tolerance +0,3
- Cylindrical head thickness tolerance -0,02/+0,07
- Cylindrical head diameter tolerance -0,3
- 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 heavy duty headed punch is directly tightened and centred in the tool plate.
- 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 :
- The desired dimensions
- Desired shape (except for blanks)
- Shape dimensions (except for blanks)
- The desired coating
- Shape orientation
- Standard alterations
Example : PB-PTFL-16-71-20-P12.5-W8-R2T0-TIN
Technical data
Plan
L : Punch length
Dm5 : Body diameter tolerance m5
L2 : Working length for shaped punches
ØH : Cylindrical head diameter
ØE : Ejector diameter
Lu : Useful length
P x W : Shape dimensions
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