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This CNC machine can machine internal or external surface,taper surface and curving surface,etc. - details see: https://www.machineto.com/ck5225a-2-cnc-machine-10131639

CK5225A/2(2500x2000)

This technical specification is specially used for φ2500×2000 CNC vertical lathe, the supplier will follow the relevant national norm to produce this machine.

1. technical parameter

1.1 model CK5225A/2

1.2 Parameter

No.	Item	Parameter
1	The max. cuttting diameter	2500 mm
2	The max. height of work piece	2000 mm
3	The max. torque	55800N•m
4	Faceplate speed range	2.5~80 r/min
5	Faceplate speed steps	2 shifts and variable speed
6	spindle power	55KW
7	The max. cutting force of tool head(right tool head)	29400N
	(left tool head )	26400N
8	Tool arbor dimension(WxH)	40×50mm
9	Feed rate range of right tool head	0.1~1000mm/min
10	Feed rate steps of right tool head	Variable
11	Rapid traverse of right tool head	4000mm/min
12	Feed steps of left tool head	18steps
13	Feed range of left tool head	0.2~145mm/min
14	Rapid traverse of left tool head	1550mm/min
15	The max. swivelling angle of left tool head	±30°
16	Stroke of left and right tool head (horizontal )	1400 mm
	Stroke of left and right tool head (vertical )	1000mm
17	Stroke of cross rail	1700 mm
18	Elevation speed of cross rail	350 mm/min
19	Faceplate diameter	2250mm
20	The max. weight of work piece	20000kg
21	Overall dimension of machine(LxWxH)	5180X5200X5270 mm
22	Machine weight	35000kg

2.Application and feature

This machien is CNC double column vertical lathe, the max. cutting diameter is 2500mm, the max. cutting height is 2000mm, carbide tool and high speed tool can be used in this machine to cut ferrus or non-ferrus material.

The SIMENS 828D system is used in this machine, semi-closed control can realize the inner and outer cylindrical surface cutting, surface cutting, arc cutting and other shaped surface cutting etc.

3 main structure and performance

3.1 General layout of machine

This machine is composed of column, main gear box, faceplate, cross rail elevation mechanism, tool head, electric system, hydraulic system. This machine is gantry frame strucutre, that means that the two columns are separately connected with each side of the faceplate base, the main gear box is connected with the rear end of the faceplate base. The cross rail can move along the slideway of column up or down, two tool heads are set on the slideway of cross rail to cut the work piece, the left one is manul control , the right one is CNC control, the two tool heads can get feed motion in horizontal and vertical direction by controlling the suspending pendant station. Most of the machine control can be done through the pendant station.

This machien is semi-closed control

3.2Performance of main parts

3.2.1The main drive system is driven by the AC variable frequency motor, the hydraulic cylinder push the shifting fork to change the gears’ engagement to realize the speed change of the faceplate, 2 shifts and variabe speed can be available, the speed rang is in between 2.5~80 r/min.

3.2.2 Feed mechanism

CNC servo motor is used in this machine , this motor is connected with the 1:3 gear box to drive the ball screw to realize the horizontal(X axis) and vertical(Z axis)feed of right tool head also rapid traverse of right tool head. The horizontal and vertical feed motion of left tool head is driven by the lead screw and light bar which are separately connected with the feed box., the feed rate of both tool heads is 18steps and 0.24-145mm/min, the rapid traverse is1550mm/min.

3.3Structrue character of main parts

3.3.1The hydro-static guideway is used in the faceplate to undertake the table load, two spindle bearings Model 3182100 are set to adjust the radial clearance to ensure the high rotating precision, on the top of the faceplatel, four chucck jaws are set to clamp the work piece.

3.3.2The column is connected with the table base, the materials are made of low press casting, cross rail elevation mechanism is set on the column, that is driven by the AC motor realize the up or down movement of the cross rail.

3.3.3The cross rail can move along the slideway of column, that is driven by the two lead screws, safety floating nut is set on the cross rail to ensure the safety and precision of the machine. The cross rail is clamped by the belleville spring and released by the hydraulic cylinder

3.3.4The tool heads are three layers of structure, which is composed of swivelling carriage, cross rail carriage and ram. The material is low press casting, the ram material is nodular cast iron, on the sliding guideway of right tool head, American made soft belt is pasted and hand scraped, alll the support bearings for the ball screw are INA bearing made in Germany.

3.3.5The hydraulic system is composed of faceplate hydrau-dynamic system, main transmission system speed change system, cross rail clamping and releasing system, tool head hydraulic balancing system, lubricatin system etc. The key hydraulic elemnts are purchased from the world famous factory to ensure the good quality of machine.

3.3.6The lubricatin ways is centralized lubrication.

3.4CNC system

SIMNES 828D

3.4.1 2 axis CNC Control

3.4.2 2 linked axis

3.4.3 linear and circle interpolation

3.4.4 reverse clearance and screw compensation

3.4.5 work coordinate setting

3.4.6 tool point radius compensation

3.4.7 10. 4"LCD monitor LCD

3.4.8(0~120%) Rapid motion magnification

3.4.10 PLC

3.4.11 work drawing programming

3.4.12 handwheel feed

3.4.13 warning message

3.4.14 computer outer port RS-232

4.Machine accuracy(JB/T9934.1~9934.2-1999

Radial run-out of face plate in the diameter of 1000mm, the tolerance is0.01mm, every increment of 1000mm in the diameter, the tolerance increase by 0.01mm.

Run-out of faceplate end surface in the diameter of 1000mm, the tolerance is0.01mm, every increment of 1000mm in the diameter, the tolerance increase by 0.01mm.

The perpendicularity of the cross rail movement to the face plate.

0.06/1000 in the plane perpendicular to the cross rail

0.04/1000 in the plane parallel to the cross rail

the parallelism of the tool head to the faceplate surface in the measuring lenghth of 1000mm, the tolerance is 0.03mm

the perpendiculary of the ram movement to the faceplate surface

0.03 in the plane parallel to the cross rail

0.05mm in the plane perpendicular to the cross rail

Maching accuracy IT7

Work piece roughness Ra1.6μm

Circularity of fine machining outer surface 0.02

Cylindricity of fine machining outer surface 0.01/300

Flatness of fine machining end surface 0.03

Positioning accuracy of X., Z axis: 0.03

Repeatable positioning accuracy of X, Z axis: 0.015

Reverse deviation of X, Z axis: 0.01

5.Operation manual

(including packing list, foundatin drawing, drawings for easily damaged parts, mechanic,hydraulic and electric operation manual),SIMENS diagnose book, SIMENS programming book.