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CK7520 Series CNC Lathes

  • CK7520
  • BOCHI
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Introduction

CK7520 series CNC lathes——its strength, dynamic and static rigidity, mechanical structure of main parts, guard and coolant system are all advanced in design. This series lathe, designed with high vibration strength, adopts high grade cast iron, integrated bed and base, slant guide ways, a high precision through-hole spindle driven by large-field AC main motor. Key parts like bearings of main spindle and that of feeding screw are all famous foreign products. The multi-station turret rotates fast and continuously with a high repeatability and changes tool in nearest path. The lathe can be equipped with FANUC 0i-TD, FANUC 0i Mate-TD, Siemens 810D, 802D, DASEN 3i etc on request, or other top brand controls from both China and foreign countries. The hydraulic parts, lubrication units and chucks are all good-quality from both domestic and foreign markets.

The lathe is designed with unique appearance, easy-operated panel, full-enclosed guard, which can prevent the leakage of water, power and oil effectively. It is the most powerful product in its class due to the large power, excellent accuracy and high performance.

Features

(1) Integrated base and bed made of high grade cast iron is of high rigidity with wide rectangular hardened ways.

(2) High grade cast iron saddle and slide, plastic-coated ways, small dynamic and static friction force. Rapid traverse rate of X and Z axis is up to 12m/min and 16m/min. Wide span saddle and slide ensure large-loaded and heavy cut.

(3) The spindle runs in precision large diameter angular contact ball bearings and double -row cylindrical roller bearings, driven by heavy servo motor, and ensures extremely stiffness and large torque at low speed.

(4) Ball screws are used in X and Z axes, which are supported by Japan NSK angular contact bearings especially for screws. Therefore stiffness and heat distortion resistance of screws, and feeding accuracy are greatly improved.

(5) DM 12-station horizontal power turret from Italy ensures high accuracy, high rigidity and short tool change time.

(6) Well sealed machine electric cabinet together with air conditioner inside the cabinet guarantee correct operation of the control in high temperature and humidity ambient.

(7) Close attention is focused on edge technology. So machine guard is reliable. No chip, coolants is splashed or flies out when during heavy cut or pressure spraying of coolant.

(8) The chuck is clamped and unclamped hydraulically. The quill of tailstock is advance out and in. Both of them can be program controlled.


Specification

Description

Unit

CK7520

CK7520A

CK7520B

CK7520C

Capacity

Max. swing over bed

mm

φ500/φ450/

φ450

φ500/φ450/

φ450

φ500/φ450/

φ450

φ500/φ500/

φ450

Max. swing over slide

mm

φ320

φ320

φ320

φ240

Max. turning dia.

mm

φ370

φ370

φ370

φ370

Max. turning length

mm

500/1000/1500

500/1000/1500

500/1000/1500

500/750/1000

Max. bar dia.

mm

φ51

φ51

φ73

φ51

Spindle

Spindle nose


A2-6

A2-6

A2-8

A2-6

Spindle thru-hole

mm

φ62

φ62

φ87

φ62

Chuck dia.

mm

φ210

φ210

φ254

φ210

Spindle speed

r/min

40-4000

75-2500

30-3000

40-4000

Power of spindle motor

(cont./30 min)

kW

11/15

15

11/15

11/15

Tailstock

Quill dia.

mm

φ90

φ90

φ90

φ90

Quill travel

mm

100

100

100

100

Taper of center

(standard/live

spindle structure)


Morse No.5/4

Morse No.5/4

Morse No.5/4

Morse No.5/4

Feed

Travel X/Z

mm

210/550

210/1010

210/1550

210/550

210/1010

210/1550

210/550

210/1010

210/1550

210/550

210/780

210/1010

Rapid traverse X/Z

m/min

12/16

12/16

12/16

24/24

(500/1000)

24/32750

Turret

Number of stations


12/8

12/8

12/8

12/8

Tool setting size

(turning/boring)

mm

25×25/φ40

25×25/φ40

25×25/φ40

25×25/φ40

Others

Slant angle of bed


45°

45°

45°

45°

Power capacity

kVA

45

30

45

45

Dimension(L×W×H)

mm

2860×1830

×2020

3790×1850

×2050

4600×1850

×2050

2860×1830

×2020

3790×1850

×2050

4600×1850

×2050

2860×1830

×2020

3790×1850

×2050

4600×1850

×2050

2860×1830

×2020

3230×1830

×2020

3790×1850

×2050

Machine weight

kg

4500

4500

4500

5000

 


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In recent years, Baoji Machine Tool is growing stronger, becomes a large industrial enterprise of our country and high-tech enterprise, which owns 12 branch companies, such as Baoji Zhongcheng Machine Tool Co., LTD., Zhongcheng Precision CNC Equipment Manufacturing Co., LTD., Zhongcheng Precision Parts Manufacturing Co., LTD. and so on. It had passed ISO9001 quality standard , CE security certification, the customs AA grade credit and ISO14001 environment system certification.
Baoji Zhongcheng Import&Export Co., Ltd.
+86 917 356 68 93
Gaoxin 14 Road, Baoji, Shaanxi, China 721013

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