There are many types of puñetazo, and your punch machine type is mainly based on the material, finished product size. The punch is a large processing equipment set. So customers should choose on many factors. So what are the two aspects of punch selection that need attention? Here’s a brief introduction by HARSLE.

Firstly, it is the choice of press type.

Generally, if operator wants to process small metal pieces, bending pieces or shallow drawing pieces, he needs a open punch. The elastic deformation of the the open punch will destroy uniform clearance. It will affect the precision of the punch and reduce the life of the punch.

Here are many advantages of the open punch: its open body design, easy operation, easy mold installation, feeder, automatic production and affordable price.

For large and medium-sized or high precision stamping products, should choose the door punch and double – shaft punch. For leveling, bending correction, shaping and other special stamping process, the punch with high strength and rigidity should be selected.

Secondly, it is the selection of press specifications.

Here are four factors that buyer need to take into consideration when select the punch:

1. Selection of puñetazo tonnage

The tonnage must be greater than the actual punch production pressure. Also it must ensure that the product load curve does not exceed the allowable punch load curve. Generally, tonnage selection principles are as follows:

2. Selection of punch table

The actual size of the installation mold determines the punch table. The mold will increase according to customer requirements.

3. Selection of large closing height

The closing height of stamping die should be between the very large closing height and the very small closing height.

Because the rod wear will become short, in the future repair die will make the stamping die closing height reduce. So the design of stamping die height is generally close to the punch of a large die height.

4. Selection of punch stroke and puñetazo speed

The actual stamping process determine the two factors. Manual feeding does not fit too many strokes; Automatic stamping, as far as possible to choose the stroke of the punch. Deep drawing cannot work with too many strokes; Or the material has no time to fully deformation, will make parts easy to crack.

The above are some points buyers need to consider in the selection of punch press equipment processed by HARSLE analysis. Including the punch tonnage, table, stroke, speed, closing height and other factors selected. Hope our article is helpful to you! Please click on www.harsle.com to learn more about machines!