Ralc Italy Srl

NEW LYBRA

Conni Cutting Lines manufactures circular sawing machines for angle cutting with revolving table and upward-moving blade since 1981. In these 37 years, this historic model of our range has been constantly improved, up to today's NUOVA LYBRA, the latest evolution of the famous C450, sold in thousands of specimens all over the world.

The NUOVA LYBRA keeps the strengths of the traditional machine intact and further improves the features of strength, precision and speed that have always distinguished this model. Thanks to the latest technical evolution, the NUOVA LYBRA can grant an increased production until the 15%, compared with the previous version *. The sawing machine is suitable for single, double or triple cutting (vertically or horizontally depending on the selected magazine) of pipe and / or bar with HSS blades.

CUTTING HEAD
 

• High performance cutting head with black lash helical gears, hardened and ground;
• Cutting head Motor: KW 5,5;
• Automatic blade positioning according to the part / profile which has to be cut; controlled by hydraulic cylinder and potentiometer;
• Proportional valve on cutting head to obtain variable blade feeding speed according to the material section;
• Blade speed: with electronic speed variator (inverter) for alternating current head motor - variation ratio 1: 5 starting from 24 rpm/min up to 120 rpm/min continuous; the following additional reduction ratios are also available: 15/60 - 20/100 - 28/140 rpm/min;
• Blade lubrication by emulsion or minimal lubrication;
• Electronic saw blade protection system by Ampère limit, controlled by PLC;
• Automatic revolving table (± 60º), controlled by SIEMENS Brushless motor, chain transmission, pinion with hydraulic locking; the rotation of the cutting head controlled by servomotor;
• Table covering with special plate in alloyed and ground steel, with hardness 250 Hd;
• Table cleaning brush to remove scraps and trim cuts.

FEEDING CARRIAGE
 

• Stronger carriage structure;
• Automatic feeding carriage 1.900 mm in one SINGLE stroke with multi-feed facilities; feeding on double prismatic guides, in order to grant more precise and black lash free movement. Movement by SIEMENS brushless motor and ball screw;
• Carriage speed: from 10 to 60 m/’ variable; automatic feeding speed regulation according to the length/weight of the piece;
• Integrated lifting system to avoid scratches on the tube surface. The bar is lifted from the sliding surface during the forward and backward movement, so that there are no frictions that might cause damage to the bars; the lifting affects the entire feed system, including guides;

VICES
 

• Hydraulic vertical vice with automatic positioning controlled by potentiometer;
• Potentiometer integrated in the horizontal feeding carriage clamp (hydraulic);
• Hydraulic horizontal vice and counter-vice with function of unloading gripper controlled by potentiometer. Running on ball bearing linear guides; managed by SIEMENS Brushless motor and ball screw, directly from the CN. This third axis allows the ejection of the cut piece in a programmed position and allows, if needed, to position the piece for special cuts;
• Downloadable minimum lengths:
  • 10 mm. for 90 ° cutting
  • 10 mm. + 2 times the diagonal width of the piece for 45 ° cuts.
• Pressure reducing valves on both vices;
• Interchangeable jaws with quick clamps;
• Regulation of both vices on the control panel by proportional valve.

SOFTWARE
 

• Microsoft Windows 7 embedded BASED SOFTWARE SYSTEM for a complete data management by INDUSTRIAL PC MICROBOX;
• SIEMENS colour touch screen 15”;
• Automatic control of cutting length and angle;
• Different cutting lengths memorisation;
• CUTTING OPTIMIZATION (with max. two different angles): when entering the cutting list with lengths, the INDUSTRIAL PC calculates the quantity of pieces on each bar, in order to have the shortest final scrap;
• Ethernet  network connection, compact flash 1 gigabyte, ram 512 megabite;
• USB 2.0;
• Complete video diagnostic;
• LENGTH ADJUSTMENT
  (error correction – by MANUAL OPERATION).

GENERAL INFORMATION
 

• The frame is built in a unique block (central frame and feeding group), which grants a stronger structure of the machine, thus meaning stability during the cut, and therefore precision and quality.
• Hydraulic unit with variable displacement pump and oil collection tank;
• Automatic separator of the good pieces and scraps;
• Integrated chip evacuator with dredging system with rear discharge;
• Safety-compliant protections;
• Light on the working area;
• The sound level does not exceed 85 dB(A) when cutting solid material. This value can be exceeded when cutting tubes and/or special profiles;
• The machine’s price includes one set of standard jaws.