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Rolling Mill equipment: CNC Roll Lathe

HEAVY DUTY CNC-TURNING LATHES FOR TURNING OF CAST IRON ROLLS

PTRM-Series:

CNC Roll Turning Lathe

PTR-Series: CNC Roll Turning Lathe

Lathe bed is made of box Structure MEEHANITE casting (HT-300). Onepiece model casting technology casting with good rigidity and high accuracy.
Lathe bed is four guide rail structure. Separate feeding guide rail and tailstock guide rail reduces the interference of the component and makes the chip removal more convenient.
Suitable for high speed steel roll and high boron steel roll, laser roll and ordinary roll precision machining.

CNC Roll Turning lathe

Heavy duty automated machining.

The CNC Roll turning Lathe is the ultimate replacement solution for Manual Lathes used by Steel Plants in the Roll Shop for Roll machining and pass cutting. Available in various Models, the CNC roll turning lathes drive a huge improvement in productivity, reduce the need for labor, eliminate manual errors and reduce the space required for turning operation in machining the Rolls.

The CNC Roll turning lathes from Profimach provide an economical solution to improve the quality of end product, productivity of the manufacturing process and thus adds to your profitability.

Machine Tools Features

  • High Torque capacity at Head stock Face plate
  • Zero backlash with ball screw
  • Provision for higher cutting force
  • 4 Guide way Lathe Bed
  • Perfect and Right Dimension of Bearing and Moving Parts
  • Telescopic cover to protect guideways
  • Rough and Finish Machining is achieved in the Lathe and with Siemens, Syntec, Mitsubishi,..CNC System programming
  • Remote diagnostics with ethernet ready machine

Advantages

  • Reduced downtime by eliminating the manual changing of rolls
  • Faster machining
  • Idel for machining split pass forms
  • Easily replaces more than 5 manual lathes and frees up the space and complexity on the shop floor
  • Suaitable for composite and carbide rolls
  • Significantly reduces the operation time and Operator time
  • Cost savings through reduced inventory of rolls

PTR-Series: CNC Roll Turning Lathe

CNC ROLL TURNING LATHE - Mill rolls, textile rolls, industry rolls

PTR-CNC Series 8550CNC 8563CNC 8580-CNC 11063-CNC 11080-CNC 110100-CNC 145100-CNC 14125-CNC 145150-CNC
Swing over bed mm Ø500 Ø630 Ø800 Ø630 Ø800 Ø1000 Ø1000 Ø1250 Ø1600
Max. turning diameter mm Ø500 Ø150 Ø630 Ø200 Ø800 Ø630 Ø200 Ø800 Ø400 Ø1000 Ø1000 Ø200 Ø1250 Ø500 Ø1600
Max. Workpiece length mm 2700 2700 2700 3300 3300-5300 3300-5300 5000 6000 8000 5000 6000 8000 5000 6000 8000
Max. Turning length mm 2500 2500 2500 3100 3100 5100 3100 5100 5000 6000 8000 5000 6000 8000 5000 6000 8000
Span of guideway mm 850 850 850 1100 1100 1100 1450 1450 1450
Type of guideway 4-guideway 4-guideway 4-guideway 4-guideway 4-guideway 4-guideway 4-guideway 4-guideway 4-guideway
Max. Weight of workpiece Ton 3,5 3,5 3,5 8 8 8 20 20 20
Max. travel of x-axis mm 315 315 315 425 425 425 500 500 500
Max. travel of z-axis mm 2550 2550 2550 3150 5150 3150 5150 3150 5150 5300 6300 8300 5300 6300 8300 5300 6300 8300
Rapid speeds of x-/z-axis mm/min 8000-10000 8000-10000 8000-10000 8000-10000 8000-10000 8000-10000 5000-5000 5000-5000 3000
Min. feed increment of x-/z-axis mm 0,001 0,001 0,001 0,001 0,001 0,001 0,001 0,001 0,001
Spindle speed range (stepless) rpm 4 - 400 4 - 400 4 - 400 4 - 300 4 - 300 4 - 300 4-200 4-200 4-200
Spindle nose Spindle nose C2 - 11 C2 - 11 C2 - 11 A2 - 15 A2 - 15 A2 - 15 A2 - 15 A2 - 15 A2 - 15
Spindle Bore mm Ø94 Ø94 Ø94 Ø130 Ø130 Ø130 Ø100 Ø100 Ø100
Taper hole of spindle Metric 120 Metric 120 Metric 120 Metric 140 Metric 140 Metric 140 Metric 140 Metric 140 Metric 140
Spindle taper MT-5 MT-5 MT-5 MT-6 MT-6 MT-6 MT-6 MT-6 MT-6
Manual 4-jaw chuck mm Ø500 Ø630 Ø630 Ø630 Ø800 Ø800 Ø1000 Ø1250 Ø1600
Turret working position 4 4 4 4 4 4 4 4 4
Turret specifications dimensions mm 280 x 280 280 x 280 280 x 280 300 x 300 300 x 300 300 x 300 380 x 380 380 x 380 380 x 380
Section of tool shank mm 40x40 40x40 40x40 40x40 40x40 40x40 50 x 50 50 x 50 50 x 50
Diameter of tailstock quill mm Ø200 Ø200 Ø200 Ø220 Ø220 Ø220 Ø300 Ø300 Ø300
Travel of tailstock quill mm 310 310 330 330 330 330 310 310 300
Taper hole of tailstock quill MT-6 MT-6 MT-6 MT-6 MT-6 MT-6 100 (1:7) 100 (1:7) 100 (1:7)
Main motor pover KW AC22 AC22 AC22 AC30 AC45 AC45 AC75 AC75 AC75
LxW mm 6400x2350 6400x2350 6400x2350 7500x2400 9500x2400 9500x2400 11000x3000 12000x3000 14000x3000
Machine weight Ton 9 9,5 10 13-17 14-18,5 15-20 30,5-31,5-33,5 35-37-41 37-39-43

High precision heavy Duty Roll Turning Lathe

Affordable Roll Turning Machines

PTR-CNC Type Lathe is an heavy duty roll turning lathe suitable for grooving and redressing rolling rolls and cylinders. Machine is specifically designed for roll maintenance shop applications. The four guide ways are able to grant the necessary rigidity and stability for long cylinder machining. The SIEMENS (syntec, mitsubishi,..) control has full potential for demanding performance of this application. The dedicated interface makes machine operations easy and fast for machine high productivity.The main shaft bearing position very close to the faceplate (i.e. application point of radial stresses) in order to reduce the bending momentum with advantages in terms of stiffness. Large special bearings are another element that insures high performance of this component. Main gear diameter is close to the max. roll diameter to increase stiffness, decrease bending momentum and smooth high torque transmission. Guideways are ground on the heavy ribbed cast iron bed: to assure the necessary geometrical precision and a good sliding surface. No reported rail guides are used for our lathes.

General PTRM-CNC Series Accuracy  
Spindle axial channeling ≤ 0.01 mm
Radial run-out of spindle taper hole ≤ 0.005 mm ( near spindle )
≤ 0.02 mm ( near 300 mm )
Slide carriage move’s affect on spindle axis parallelism ≤ 0.2 ( only upward bias allowed in vertical )
≤ 0.015 ( only forward bias allowed in horizontal )
Slide carriage move’s affect on tailstock sleeve parallelism ≤ 0.015 ( only upward bias allowed in vertical )
≤ 0.015 ( only forward bias allowed in horizontal )
Equal altitudes of spindle and tailstock centre to centre distance 0.02-0.06 ( only tailstock higher allowed )
Finish turning cylindrical precision 0.005 mm (circular degree )
Fine and facing’s affect on cylindrical vertical degree 0.02 / 300 (cylindricity)
0.01 / 100
Fine and facing’s surface roughness Ra 0.8
Min. travel of vertical / horizontal 0.001 mm
Repeat location precision X-axis: 0.006
Z-axis: 0.020
Single location precision X ≤ 0.01 mm
Z ≤ 0.03 mm