1, according to the punch appearance

H and C type high speed punching machine, everybody said the punch and open type press, gantry planer puncher manufacturer refers to its appearance looks like a relative English letters, such as gantry punch like a H, because of its structure is also known as H punching machine, it is more visual C punch press, on the surface of guide rail sliding block and the lift plate outlet is very like a C English letters, so Also called open punch.

Simple said: in plain English, Longmen punch, that is, H-type punch, Longmen frame is higher and wider, like the door of the punch. General punch for C, very visual, the bed into C.

2, according to the punch bed structure

Open punch: the bed structure is open to the outside, bearing force is easy to change, low precision. 300t high speed punch: closed bed structure, high bending stiffness, not easy to bear deformation, high precision.

Gantry punch and open punch both are gear driven press. Gantry punch according to the name of its fuselage structure for the structure of the gantry type of this type, can be classified as an integrated closed test press, but its transmission system structure or open type of this type, engine crankshaft transmission system non-shaft force transmission gear. 30 tons high speed punch machine body opening is open type, convenient front, back, left, and up and down direction feeding. The gantry fuselage has good bending stiffness, while the open fuselage has poor bending stiffness.

3, according to the price of punch

Type C high speed press uses three locating pins, and gantry high speed press uses six locating pins. Longmen punch stamping die products more stable. The price is slightly more expensive. If the provisions of high bending stiffness stamping die goods or buy gantry, but the price is more expensive than the open dozen.