Broaching machine KRME notches the specimens within 25 seconds

Speed up specimen preparation for noteched impact specimens

The conventional manufacturing of specimens for impact test according ISO148 (and other standards) need high precision adjusting of the specimen on the milling machine to receive high accuracy specimens inside the dimensional limits of the standards.

You have to adjust the height of the milling tool (to receive exact notch depth / ground of 8 mm) and also the direction of the milling (within 2° accuracy).

All this work of fine adjusting and positioning you do not need on the special notch broaching machine: Only insert the specimen, fix it with the quick clamping device and press START.

Using this specimen notching machine means sparing labour cost for time consumption adjusting and fine positioning of your specimens. Additional the precision is mostly better than the milling process because the machine is limited only for this job: The exactness is present every time: Ground depth (residual thickness after notching), the radius of notched ground, the angle of the V-notch, angle of alignment according to longitudinal specimen… (at least everything related to the positioning) is perfect any time.

Even when you are not preparing this specimen day by day in hundreds of lots (with a milling machine used only for this process) this machine is a must: Suitable to notch up to 100 specimens per hour. The machine can be operated also from people those have no experience ins using milling machines. So this machine is the no. one solution for third party labs and all companies for up to 100 specimens per day to limit the labour cost for specimen production.

The machine can be used for to produce notched impact specimens for didactic: Just cut a square bar into pieces of 55 mm length (by using a simple saw) and insert these into the machine. 30 seconds later you have produces the ready to test sample (possible also by a student …).

One big advantage of this machine is: Pre adjusting of the notch process grants the residual thickness of 8.00 mm + 0,05) even if the specimen do have a thickness outside the limit (10,0 mm + 0,075) The result of the residual cross-section is every time 8.00 to 10.0 mm = 80 mm² 

There is no need to position the specimen with high accuracy: Only insert and fix the specimen an press START

The machine cuts notches (V / U – notches) within 30 sec. (steel) or 15 sec. (plastic) incl. loading-

The machine is mounted inside of a free standing housing. The notch braoching tool is guided by two guiding column and driven by a central spindle. The speed can be adjusted using a stepless gear box (for adjusting different speeds for different hard materials). The machine will be operated by two keys only (UP / DOWN). The electric limit switches are controlling the position. A setup can be done easily by user (no dedicated training required).