Tapered head punches with ejector PB-RFEB / PB-RFE_
Tapered head punches with ejector PB-RFEB / PB-RFE_
The P_-RFE_ tapered head punches ensures an extreme resistance to head breakage. The ejector facilitates waste removal. Bottleneck head punches are mounted in a tool to cut, bend or form sheet metal. We are machining our punches following your needs or drawing. They are also available as blank.
![](/_next/image?url=https%3A%2F%2Fapi.amdl-eu.com%2Fuploads%2Fmedia%2Ftapered-head-punches-with-ejector-pb-rfeb-pb-rfe_.png&w=1920&q=75)
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Specifications
Material : Material B : High-speed steel HSS / 1.3343 / M2 / HS 6.5.2 / Z90
Standard : DIN 5118
Dimensions :
- Diameter : from 8mm to 25mm
- Length from 71mm to 100mm
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:
- Head 47 -57 HRc
- Body 60 - 64 HRc
Avantages :
- Extreme head resistance
- All our punches are engraved to your specifications for quick identification.
- Ejector for waste removal
Tolerances :
- Body tolerance h6
- Length tolerance +0,5
- Shape tolerance ± 0,01
Conception :
- The bottleneck/tapered head is hot forged for superior strength and a better durability.
- The body and shape are grinded with high precision.
- Our ejector punches are made with a vent hole on the body.
Target application
Ideal for press tools or injection moulds.
Recommendations for use :
- Mounting : The tapered head punch is mounted in a punch-retainers for tapered punches or in a punch-retainers for headed punches with a seat YR-RFSE.
- 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-RFEL-25-71-20-P24-W12.2-R2T0-TIN
Technical data
Plan
L : Punch length
Dh6 : Body diameter tolerance h6
H : Tapered head diameter
L2 : Working length for shaped punches
Lu : Useful length
E : Ejector diameter
P x W : Shape dimensions
![Tapered head punches with ejector PB-RFEB / PB-RFE_ plan. Special cutting punches, from the leading manufacturer Porter Besson](/_next/image?url=https%3A%2F%2Fapi.amdl-eu.com%2Fuploads%2Fmedia%2Ftapered-head-punches-with-ejector-pb-rfeb-pb-rfe_-plan.png&w=3840&q=75)