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Technical Parameters
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Gantry Machining CenterG28 series

G28 series gantry machining center adopts the closed gantry frame structure consisting of bed, column and beam, with features of high rigidity and high stability. The machine tool can finish the processing of milling, boring, drilling, tapping and sinking. It is mainly designed for the processing of automobile sheet metal mold, plastic mold, precision machinery parts and aerospace and shipbuilding. Equipped with the accessory milling head, it can realize the five-face processing at one time of clamping, serving several purposes. It can effectively enhance the processing precision and processing efficiency.

The casting of the machine tool is made of high strength inoculated cast iron and high quality resin bonded sand, which is treated by multiple aging techniques to ensure the rigidity and stability of the machine tool.

Three axes are all equipped with the sliding guide treated by the high-frequency quenching to enhance the whole bearing capacity and durability.


    The assembly of joint surface adopts the technique of glue injection, which can greatly increasel.

    3-axis bearing seat is scraped precisely without the gasket design to guarantee the smoothness of 3-axis transmission.

    The standard gear-type spindle with the portal width of 2.8m and over can realize the high-torque heavy cutting.

    The beam adopts the composite structure of rectangle up-and-down stage solid guide and rolling guide to neutralize the disturbing moment caused by the offset of center of gravity of spindle box's boring and milling head and traverse slide. Y-axis traverse slide, transverse guide and slide wedge all adopt the filming treatment to enhance the precision and service life.

    The large type adopts the hanging-type operation box that can be rotatable to the table surface and convenient for users'operation.

    The foot treadle (optional) and moving foot-operated switch (optional) are convenient for users to get up and down the machine tool to change the tool.

    The transmission mechanism with the large loading adopts the precision planet gear box characterized by the large transmission torque, high efficiency and precision. All servo axes are driven by spring coupling with good rigidity and accurate travel.

    The addition of supporting mechanism on the screw with the travel over 4m can effectively avoid the falling caused by the deadweight due to the overlength of screw and thus prolong its service life and reliability of precision during the processing.

    The addition of supporting mechanism on the screw with the travel over 4m can effectively avoid the falling caused by the deadweight due to the overlength of screw and thus prolong its service life and reliability of precision during the processing.

Gantry Machining CenterG28 series
YHMC-G3228X
YHMC-G4228X
YHMC-G5228X
YHMC-G6228X
Technical Specifications
Table
Table Dimension
mm
Interval of Two Columns
mm
Max Load
Kg
T-slot (Dimension×Distance×Quantity)
Travel
X-axis Travel
mm
Y-axis Travel
mm
Z-axis Travel
mm
Spindle
Distance from X-axis End Surface to Table
mm
Spindle Type
Spindle Speed
rpm
Main Motor Power
Kw
Max Output Torque
Nm
Feeding Speed
Guide Type X/Y/Z        
Rapid Traverse Speed X
m/min
Rapid Traverse Speed Y
m/min
Rapid Traverse Speed Z
m/min
Cutting and Feeding Speed
mm/min
Precision
Location Precision X(Semi-closed loop)
mm
Location Precision Y(Semi-closed loop)
mm
Location Precision Z(Semi-closed loop)
mm
Repeated Location Precision X
mm
Repeated Location Precision Y
mm
Repeated Location Precision Z
mm
Others
Overall Dimension (Length × Width)
mm
YHMC-G3228X
3200×2500
2800
14000
28×220×11
3200
2800
1000
350-1350
BT50
6000
22/26
560/640
Linear guide/sliding/sliding
10
10
10
1-8000
0.028
0.028
0.023
0.011
0.011
0.009
9500×6000
YHMC-G4228X
4200×2500
2800
16000
28×220×11
4200
2800
1000
350-1350
BT50
6000
22/26
560/640
Linear guide/sliding/sliding
10
10
10
1-8000
0.032
0.028
0.023
0.014
0.011
0.009
11500×6000
YHMC-G5228X
5200×2500
2800
18000
28×220×11
5200
2800
1000
350-1350
BT50
6000
22/26
560/640
Linearguide/sliding/sliding
10
10
10
1-8000
0.037
0.028
0.023
0.016
0.011
0.009
13500×6000
YHMC-G6228X
6200×2500
2800
20000
28×220×11
6200
2800
1000
350-1350
BT50
6000
22/26
560/640
Linearguide/sliding/sliding
10
10
10
1-8000
0.042
0.028
0.023
0.018
0.011
0.009
15500×6000
Gantry Machining CenterG28 series
Processing of car mold
Engine connecting rod
Engine cylinder block
Undercarriage
Car cylinder head
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