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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.


* The output information is always to be considered as indicative, as it is the result of a theoretical calculation, and therefore not binding for the constructor.

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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.



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  • 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;


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  • 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.



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  • 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;
    (error correction – by MANUAL OPERATION).


  • 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.


Blade diameter

90° = 100 mm

45° = 95 mm

30° = 80 mm

90° = 90 mm

45° = 80 mm

30° = 70 mm

90° = 140x70 mm

45° = 110x60 mm

30° = 80x40 mm

Blade diameter

90° = 125 mm

45° = 115 mm

30° = 95 mm

90° = 110 mm

45° = 100 mm

30° = 80 mm

90° = 160x90 mm

45° = 130x70 mm

30° = 100x50 mm

Blade diameter

90° = 145 mm

45° = 135 mm

30° = 110 mm

90° = 130 mm

45° = 110 mm

30° = 90 mm

90° = 180x100 mm

45° = 150x70 mm

30° = 110x60 mm

(*): Referred to the axis of the bar.


The above mentioned cutting capacities refer to the machine standing alone; when the machine is combined with fully automatic loading magazine, the machine capacities are determined by magazine capacities for fully automatic production. 


Blade fixing according to DIN 8576: 50/4/14/80 mm - 40/4/12/64 mm


Cutting plan height: 1.050 mm.

Weight (machine only): 4.200 kg (+ 1.400 kg)


Slide magazine

Bundle magazine

Chain magazine equipped with 8-10-12 compartments

Magazine for solid bars

Special magazines

Lifting device in layers


Ejector SC3 automatic discharging system with unloading in front and rear position in order to divide two different cutting lengths. It is available in different lengths and it is equipped with security devices. 

Ejector SC4 automatic discharging system with 12 unloading positions (6 front and 6 rear) with temporized Transilon tape. It is equipped with a brush for cleaning the tape from the chips. It is available in different lengths and it is equipped with security devices.

Both unloader can be connected with automatic bundle collectors.



Blowing system

Automatic belt collector

Measuring system (length, homogeneity, surface)

Packing systems


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