Catalogo ABC 54

Suggestions for using circular wood saws with carbide tipped teeth Rotational speed rpm DIAGRAM OF THE PERIPHERAL SPEED DURING CUTTING WITH A CIRCULAR SAW IN RELATION TO THE NUMBER OF REVS AND TO THE DIAMETER CUTTING SPEED M/SECOND Diameter mm DIAGRAM TO ESTABLISH THE PROGRESS FOR A CIRCULAR SAW IN RELATION TO THE CUTTING DEPTH, DIAMETER, NUMBER OF TEETH AND ROTATION SPEED B 5381 - B 5404 - B 5405 - B 5406 - B 5407 Material N° of teeth Ø saws 150-230 mm 250 mm Solid woods Longitudinal soft wood sections hard wood 12-24 12-32 28 28-40 Universal cross soft wood cut hard wood 12-32 24-40 28-40 28-80 Glued panels Masonite panels Chip board and sandwiched panels (coated) Blockboards Hard fibre cardboards Light plywood Plywood 24-40 24-40 20-40 24-40 20-40 24-40 28-80 60-80 40-80 40-80 28-80 40-80 Others Plaster boards 20-40 28-80 Plastic materials 32-40 40-80 Hard paper 32-40 40-80 SUGGESTIONS FOR CHOOSING THE TEETH TABLE OF PERIPHERAL SPEEDS - m/sec. Natural woods 60-100 Materials with abrasive texture 3-10 Plywood 40-80 Hard rubber 7-13 Bronze 8-13 Fibre 60-90 Copper 8-16 Resins 35-70 Zinc 15-25 On the left is a vertical indication, from the bottom up, of peripheral cutting speed values in m/sec. Horizontally, below, diameters are indicated in mm. Oblique lines represent the rotation speed in rpm. Example: determine the diameter of a circular saw for compressed woods at a speed of 3000 rpm. The ideal peripheral cutting speed in this case is about 40 m/sec. Following the dotted line, the Ø is given by the vertical row passing through the meeting point with the horizontal row at "40 m/sec" with the oblique row "3000 rpm". In this case we find a measurement of 250 mm