
Hard Rail Lathe
CNC lathes have come a long way since their inception. The use of digital technology and automation in the machining industry has made it possible to produce high-quality components with precision and accuracy. As a result, the demand for CNC lathes has increased substantially, leading to the development of various types of lathes to cater to the evolving needs of the industry.
Hard rail lathe

CNC lathes have come a long way since their inception. The use of digital technology and automation in the machining industry has made it possible to produce high-quality components with precision and accuracy. As a result, the demand for CNC lathes has increased substantially, leading to the development of various types of lathes to cater to the evolving needs of the industry.
One such type is the Hard Rail CNC lathe, which is gaining popularity in the manufacturing industry due to its advanced features and enhanced performance. The machine's structure comprises of a bed made of cast iron and machined in-house to include the active guide rail system. This design ensures high precision, increased stability, and rigidity, making the Hard Rail CNC lathe ideal for heavy-duty applications.
The guide rails on a Hard Rail CNC lathe are part of the machine's structure, which means that there is no need for additional support mechanisms. This design reduces the risk of deformation during machining operations and results in higher accuracy and precision. The machine is also capable of handling greater loads and lasts longer compared to lathes with removable guide rails.
The Hard Rail CNC lathe offers several advantages, including faster machining speeds, improved precision, and higher levels of productivity. With the increased stability and rigidity that comes with the machine's design, it is possible to achieve high machining accuracy even at high cutting rates, making the machine ideal for mass production environments.


Additionally, the machine's design also incorporates features such as a built-in chip removal system that enables continuous machining operations, automatic tool changing capabilities, and a high-quality coolant system that ensures optimal cutting conditions.
In conclusion, the Hard Rail CNC lathe is an advanced machine tool that offers numerous advantages to manufacturers. With its integrated rails, cast iron bed, and advanced features, the machine offers improved precision and accuracy, higher stability and rigidity, and increased productivity. These benefits make it an attractive choice for manufacturers who are looking to increase their competitiveness by investing in cutting-edge technology to stay ahead of the pack.
CK6140 × 4000 CNC lathe
1.CK6140 × 4000 Mechanical Specification Table
|
Project |
unit |
CK6140×4000 |
|
Turning diameter on the bed surface |
mm |
Φ400 |
|
Maximum turning diameter on the skateboard |
mm |
Φ220 |
|
Machining length |
mm |
4000 |
|
Spindle transmission form |
Variable frequency stepless speed regulation |
|
|
Spindle speed |
rpm |
21-70 48-1600 100-350 |
|
Spindle end form and code |
C6 |
|
|
Inner diameter of spindle through-hole |
mm |
Φ52 |
|
Spindle motor power |
KW |
5.5 |
|
chuck size |
mm |
200 |
|
Specification of lead screw |
mm |
Φ40*8 |
|
X/Z feed motor torque |
NM |
4/6 |
|
X/Z repeated positioning accuracy |
mm |
0.01/0.015 |
|
Workpiece processing accuracy |
IT6-IT7 |
|
|
Surface roughness of workpiece |
Ra1.6 |
|
|
Tail socket diameter |
mm |
Φ65 |
|
Tailstock sleeve stroke |
mm |
150 |
|
Tailstock sleeve tapered hole |
Mohs 4# |
|
|
Knife holder form |
Electric four station |
|
|
Tool dimensions |
mm |
20*20 |
|
Rail width |
mm |
360 |
|
Machine weight |
Kg |
1600 |
2.Optional
|
Spindle transmission form |
Variable frequency stepless speed regulation/two speed change/three speed change |
|
chuck |
Manual chuck/hydraulic chuck |
|
system |
Siemens 840 Fanuc Mitsubishi Syntech ( China KND Digital) GSK( China Guangzhou Digital) H N C( China Huazhong Digital) |
3.Brands and specifications of main components used
|
Serial Number |
Component Name |
Brand manufacturer |
producer |
Model and specifications |
|
1 |
CNC system |
GSK |
China |
|
|
2 |
Main motor |
GSK |
China |
5.5kW |
|
3 |
spindle bearing |
Harbin |
domestic |
|
|
4 |
X-axis ball screw |
firing |
domestic |
Φ40*8 |
|
5 |
Z-axis ball screw |
firing |
domestic |
Φ 50 * 10(63 * 10 for three meters) |
|
6 |
chuck |
Wafangdian |
domestic |
400 three claws/630mm four claws |
|
7 |
tool carrier |
Hongda/Wenchang |
domestic |
4-station electric |
|
8 |
Electronic handwheel |
Zhehong |
domestic |
|
|
9 |
Electrical appliances, allergy protectors |
schneider |
France |
|
|
10 |
coupling |
Sanmu |
Japan |
|
|
11 |
Cooling device |
Luokai/Jianyang |
Taiwan |
|
|
12 |
Centralized automatic lubrication system |
domestic |
||
|
13 |
Precision Nut |
Yingxi |
||
|
Note: When encountering a shortage of supply, products from other brands will be used as substitutes, but there will be no difference in quality and grade. |
||||
4.Attached accessories
|
Serial Number |
Product Name |
specifications |
number |
|
1 |
Operating Instructions |
GSK |
1 |
|
2 |
Program manual |
GSK |
1 |
|
3 |
circuit diagram |
Dalian Second Machinery Co., Ltd |
1 |
|
4 |
Random Precision Table |
Dalian Second Machinery Co., Ltd |
1 |
|
5 |
toolbox |
15″ |
1 set |
|
6 |
Foundation supplies |
1 set |
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