TPT March 2009

D rilling, P iercing & P unching T echnology

New automatic punching machine type PSA-50

features of this machine are pitches precision, straightness of the worked bars and fast tooling change. The operator is just required to load the piece into the machine at the right position and push the start buttons. When all operations are over, the operator has to unload the finished tube and reload the machine. The machine is constructed from a heavy electro welded steel frame, a trolley equipped with special clamping gripper, special punching units, controlled axis to manage all tube movements, a hydraulic power pack, and an electrical cabinet supplied with control push panel and electrical installation on board. The main technical features are a maximum tube size of 80mm, a standard length of 3m (options for 4/5/6mt), and a punching power of 3/6/10 ton. There is also a maximum bar feeding speed of 40mt/1', a position accuracy of 0.1mm/mt, a gripper rotation of 90° for round tube, pitches and lengths settings directly from a panel board, and an optional controlled gripper rotation and automatic loader. SMS Engineering Srl – Italy Fax : +39 035 581509 Email : commerciale@sms-italy.it Website : www.sms-italy.it environmentally friendly emulsion thereby extending tool life. Both drilling units are fitted with a multi- spindle boring head and work with both fast and operational speeds. The high speed milling head is fitted with a hard metal tipped disc cutter. A conveyor belt is fed by a chute to dispose of the punched cut outs and bored and milled swarf. The aluminium profiles are clamped on the head side by a collet fixing carried on the feed measuring carriage and timed from a CNC-linear feed. As the profiles are partly anodized – and must remain entirely free of scratches – felt edged lowering rollers are fitted between the punching units. A Siemens 810T system controls the operation and storage programs for running and storage. Friedrich Petig GmbH – Germany

SMS Engineering, Italy, has launched a new automatic punching machine, branded PSA-50. This simple machine is suitable for punching steel, stainless steel and aluminium tube and bars with round, square or rectangular section. The PSA-50 can produce round and square holes, with or without

deformation. It is designed for shelving, radiators, ladders, bed frames and similar products. Punching can be undertaken on one side, two opposite sides or alternate opposite sides (pitch is variable). The machine is capable of punching one or more holes every time. The main

 The new PSA-50 punching machine from SMS Engineering

Drilling and punching of aluminium sections

High volume aluminium profiles, such as those used in the manufacture of luxury travel coaches, can be efficiently produced with a combined machine for drilling, milling and punching. Friedrich Petig, Germany, manufacture a range of tube punching

machines that utilise the through-punching method, and also combine drilling and milling. Petig’s machines work to punch heating holes in the profiles, with boring of sunken holes and milling of slots. The completed profiles are then matched together

 Friedrich Petig supply the technology for drilling, milling and punching

with assembly of the heating and air conditioning channels. The hydraulic impact punch unit allows differing punching pressures between 200-315kN. Column mounted tools enable punching of non uniform shapes. At predetermined and adjustable distances, the stamped holes are sprayed with an

Fax : +49 218 173 108 Email : info@petig.com Website : www.petig.com

82 ›

M arch 2009

www.read-tpt.com