Punching Machines for Tube Profiles

Lock punching machine for tube profile: who needs one

To fit a lock into a gate or wicket made of box section, several openings are made in the profile: a slot for the lock body, a hole for the handle spindle and one for the cylinder. By hand this means marking out, drilling and grinding on every leaf, and the openings come out slightly different each time. A punching machine makes the whole set in one cycle at fixed distances — as the tooling for your lock defines them.

The catalog carries the NARGESA PI85. It takes profile with a 35, 40 or 50 mm working side and a 1.5 or 2 mm wall; lock backset 18–37 mm, centre distance between handle and cylinder 85 mm. The cycle takes about 58 seconds, drive 0.75 kW, weight 200 kg.

What to check before ordering

• The lock. The 85 mm centre distance and the 18–37 mm backset must match the locks you fit. Send the lock model or its drawing — we will check the dimensions and choose the punches.
• The profile. The working side is the one the lock goes into: 35, 40 or 50 mm. The wall is 1.5 or 2 mm; thicker or differently sized profile means different tooling or a different machine.
• Volume. The machine makes sense where locks are fitted in series: in the production of gates, wickets, fences and profile doors. For a few leaves a month, marking out and a drilling machine are enough.

Holes and cut-outs of any shape in profile are cut by a laser tube cutter, while serial punching and blanking of parts from sheet and strip is the job of eccentric presses. Decorative gate elements — scrolls, twisted bars, embossed profile — are made on cold forging machines. All press types are in the Presses.