Sheet Metal Part,Mounting Bracket,Metal Bracket Shenzhen Runpeng Precision Hardware Co., Ltd. , http://www.szdiecasting.com
This Machine is a punching machine used to punch holes on steel plate for longitudinal beam of Auto. The punching unit equipped with 25 punching dies which could meet the industry's technical requirement, adopt C type open frame machine body, easy for maintenance. Use side-push device and plate width detection equipment, ensure machine accuracy and efficiency. The processing line include Magnetic loading and unloading device which to make the processing procedure more flexible.
Loading system and guideway
Machine punching unit
The Main specification:
Punching force: 1200KN
Length of work piece:4000~12000mm
Width of work piece: 250~550mm
Thickness of work piece: 4~12mm
No. of Punching die: 25
Max. Punching diameter: 60mm
Total machine power: About 70KW
The requirement to the work piece:
1.size:thickness:4~12mm,length:4000~12000mm,width: 250~550mm
2. condition of work piece:
2.1 Sickle-shaped distortion:
  Length of work piece            Sickle-shaped distortion
    <10000mm                      ≤7mm
    10000~12000mm                 ≤9mm
2.2 Plate warping:≤10mm/1000mm,≤50mm/12000mm.
2.3. Max. weight of work piece:600Kg
2.4. The width difference of the whole plate≤50mm.
2.5.Mechanical properties of work piece :σb=550~700N/mm2
2.6 About the positioning:
2.6.1 The work piece is blank plate,the end of the plate is the reference point (zero point) and the machine can confirm the center line by the two longitudinal edges of plate.
2.6.2 the positioning is reliable and precisely;easy to operate and maintenance,
2.7.punching precision :
 Precision between two holes:
 X≤±0.15mm/400mm;X≤±0.30mm/3000mm;X≤±0.50mm/12000mm             Â
Precision between two holes:    Y≤±0.20mm/550mm
 Procedure:
1.size of machine :length: 27000mm,width: approx.7200mm,height: approx.3300mm.
2. Processing direction: from left to right.
3 size of workpiece:length:12000mm,width:500mm,hole's No.350,thickness:8mm,average processing speed: 7.5 min/piece.(excluding loading and unloading time)