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CK8470*2500 CNC Heavy duty Roll Turning lathe suitable for roughing and finishing section mill rolls with profiles of the cast iron roll or high speed steel or tungsten carbide roll etc.

The CK8470*2500 CNC heavy duty roll turning lathe are suitable for workpiece up to the following data:

Max. Diameter to be machining : 700mm

Max. center distance:2500mm

Max roll weigh on center:8000Kg

CNC controller: siemens 828D

Optional function 1

Special software for programming shop turn machining step programming.

Optional function 2

 The turret block can be selected with the NC quartet turret. It can fix 4 shanks at the same time. it’s very good for machining rough and finish with different shanks.

Description:

The workpiece are accommodated between the 4-jar faceplate of the headstock and the center of the tailstock.

The CK8470*2500 CNC heavy duty turning lathe are the series of  5-bedways turning lathes has been especially designed for rolling cylinder maintenance. The CK8470*2500 CNC heavy duty turning lathes are strong and reliable, with superior rigidity given by the oversized components and 5 guideways design. There are 2 guideways for the tailstock, 2 guideways for the saddle in the level surface, at the same time there have 1 guideway on the vertical surface link to the end of the saddle beside the operation side.

The CK8470*2500 CNC heavy duty roll turning lathe are suitable for all kind of pass shape 

grooves

The CK8470*2500 CNC heavy duty roll turning lathe are suitable for all kind of pass shape

 

 

MAIN TECHNICAL CHARACTERISTIC of The CK8470*2500 CNC heavy duty roll turning lathe

CAPACITY

Height of center over bed guideways

425 mm

Distance between center

2500 mm

Max. diameter of the roll

700 mm

Bed width

1100 mm

Number of guideways

4 + 1

Max workpiece weight supported between center without steadies

8000 kg

Headstock

Spindle, shafts and transmission gears made in 18 Ni Cr Mo5, completely hardened and ground. Spindle mounted on journals which are provided with high precision SKF bearings, specially selected for spindles. 4 Jaws independent chuck, cast steel  body, diam. 650mm. A.C. brushless spindle motor controlled with VFD. Stepless variation of the spindle speed within each speed range. Lubrication system with continuous forced lubrication of all components of the headstock, complete with safety device which intervenes in case of defective operation.

headstock

 

HEADSTOCK

Spindle nose

Metric #80

Inner diameter of front bearing

240 mm

Spindle motor A. C. Brushless

37kW

Number of spindle speed ranges

2

Variation of r.p.m. at different ranges

r.p.m.5~350

4 jaws independent chuck cast steel body, 650mm,

Tailstock

Tailstock for these lathes is specially designed to reduce the distance between centre and the large bearings in order to increase stability and avoid vibrations.

TAILSTOCK

Quill diameter

220 mm

Quill travel

250 mm

Quill travel control

Motorized

Tailstock travel control

Motorized

tailstock

Z-axis (longitudinal)

Longitudinal carriage guideways protected against chips and coolant by means of telescopic covers. Guideways for bed and carriage induction hardened (m.f. procedure) with hardness HRC 48~55. Longitudinal and transversal movement of carriages obtained by means of independent A.C. Automatic PLC controlled slides lubrication system. Automatic checking system by means of remote pressure-switch. Rapid speed of 4000mm/min grants fast overall operating time.

 

Z - AXIS (longitudinal)

Z travel (Useful turning length)

2500 mm

Feeds

. 2~3000 mm/min

Rapid traverse

4000 mm/min.

Actuator for drive

A.    C. server motor

X-axis (transversal)

transversal carriage guideways protected against chips and coolant by means of telescopic covers. Guideways for bed and carriage induction hardened (m.f. procedure)with hardness HRC48~52. transversal movement of carriages obtained by means of independent A.C. server motors complete of converter drives. Automatic PLC controlled slides lubrication system. Automatic checking system by means of remote pressure-switch. Rapid speed of 4000mm/min grants fast overall operating time.

X - AXIS (transversal)

X travel

425 mm

Feeds

2~3000 mm/min.

Rapid traverse

4000 mm/min.

Actuator for drive

A. C. server motor

Ck8470*2500 CNC heavy duty roll turning lathe use the overall turret and the coolant.

 

INSTALLED POWER

Spindle motor power

37 Kw

Total installed power

50 Kw

Constant torque on Z axis motor

27 Nm

Constant torque on X axis motor

27 Nm

Feed back system: Encoders for both axes

CONTROL

CNC Control

SIEMENS 828D

Remote hand wheel

CF card