Seperated Structure Bridge Type Gantry Machining Center

Overview

The Portal4025 is a big size bridge type gantry machining center. The worktable is fixed, and crossbeam is moving. And it is also very rigid machine which can be used for heavy cutting also. Due to his structure, it can load very heavy workpiece but less floor covering.

Applications

This the big size gantry machine which can used for many industries: railway, Aeroplan, Auto molds, engineering parts etc.

Machine Features

Guide rail base

The guide rail bases are the box structure with reinforcing ribs. They are made of the HT300 resin sand-making precision casting. And the castings are treated for internal stress relieving by twice, so it can maintain long term precision.

Sliding plate、Ram

The crossbeam sliding plate is the“7” shape. There are four sliding blocks connection between sliding plate and guide rail. And there is one auxiliary box way to support.

The crossbeam plate and ram use rigid sliding guide rail, so the rigidity and stability are very good.

Crossbeam

The crossbeam is the box structure with reinforcing ribs to improve the torsional rigidity.

The crossbeam uses two linear guide rail and one auxiliary box way to support , which is the international advanced compound guide rail structure.(This is patented by NINGQING). This structure can not only meet rapid and precise moving , but can meet enough rigidity. The linear guide rail use the 55 heavy loading type.

Suitable for big work piece

Less floor covering

Bigger loading.

The work table is fixed, so the loading capacity is not limited.

High-tech synchronous drive technology

The crossbeam movement adapts the international advanced ultra precision synchronous drive technology, the position loop, current loop and the velocity loop.

This can solve the different loading micro deviation because of single position loop.

Compound crossbeam guide rail (Patent)

There is the extra box way based on original linear guide rail on the crossbeam rail, which can improve the cutting resistance force and loading area.

The patented designing can overcome the come weakness of cantilever among the gantry machine.

Higher precise guide rail mounting surface

The guide railing mounting surface is grinded by precision grinding machine, so the machine precision and work piece finish will be much better than fine milled mounting surface.

Auxiliary lead screw support

Special lead screw support by auxiliary guide rail and blocks, so it can reduce the vibration of the lead screw

Standard Configuration

1. FANUC 0i MF/Siemens 828D controller

2. BT50 8000rpm spindle from Taiwan

3. P level roller linear guide rail THK/HIWIN/PMI

4. C3 level ball screw THK/HIWIN/PMI

5. NSK bearing

6. Control cabinet heat exchanger

7. Water gun and gas gun

8. Chip conveyor

9. LED work light

Optional Configuration

1. CTS (coolant through spindle)

2. Air conditioner of control cabinet

3. Spindle cooling

4. Grating scale

5. Tool setting gauge

6. CNC rotatory table

7. Mill head