5 Axis Gantry CNC

The crossbeam utilizes a "box-in-box" design, essentially a ram structure nested within a large rectangular box, connected by internal reinforcing ribs. Compared to a solid rectangular beam of the same weight, this structure offers superior rigidity and torsional resistance. The left and right saddles support the beam from both ends; during X-axis movement, the saddles are driven synchronously, ensuring balanced force distribution and preventing beam distortion caused by off-center loads.

The HSK-A100 tool holder utilizes dual-contact interfaces, ensuring stable clamping force during high-speed rotation-ideal for 10,000 rpm operations. The spindle offers a maximum speed of 10,000 rpm, a rated power of 54 kW, and torque ratings of 200/240 N·m. This configuration delivers excellent machining efficiency for aluminum alloys and composites, while also allowing for low-speed roughing of steel components.

The AC tilting head features direct drive via torque motors-one for the A-axis and one for the C-axis-eliminating the need for intermediate gears, worm gears, or belts. This design ensures zero backlash during reversals and eliminates gear wear, resulting in long-term precision stability. The absence of gear meshing vibrations and noise leads to superior machined surface quality. With a braking torque of 4000 N·m, the head remains securely locked without sagging during power outages or emergency stops.

Each of the X, Y, and Z axes is equipped with four heavy-duty 55-series roller guideways. The X-axis features two guideways on each side of the bed; the Y-axis has four evenly spaced guideways on the crossbeam; and the Z-axis ram has one guideway on each of its four sides. This four-guideway setup offers a wider load-bearing surface compared to two- or three-guideway designs, distributing forces more effectively, reducing the load on individual slide blocks, and minimizing oscillation during movement.

The X and Y axes utilize Alpha rack-and-pinion drives, while the Z-axis employs a ball screw, achieving rapid traverse speeds of 30/30/20 m/min. This significantly exceeds the 15–20 m/min speeds typical of similar five-axis gantry machines on the market. The high speed reduces non-cutting time during high-speed milling of aluminum alloys or composite materials, offering a distinct efficiency advantage.

Positioning accuracy is 0.02 mm for X/Y and 0.012 mm for Z; repeatability is 0.015 mm for X/Y and 0.01 mm for Z. The machine complies with the GB/T33150-2016 standard, meeting the requirements for machining aerospace structural components and precision molds.