kevin@depu.com
Industry Trends & News

How the G300 Machine Achieves Micron-Level Precision in High-End Machining Applications

DEPU CNC (Shenzhen) Co., Ltd.
Share On

The G300 precision machining center is designed G300 machine parts to meet these requirements. It combines a rigid mechanical structure, a high-performance motion control system, and a precision-oriented process design, enabling the G300 to achieve stable and repeatable micron-level machining accuracy, even for complex and high-precision parts.

ScreenShot_2026-01-09_152831_358.pngScreenShot_2026-01-09_152906_513.png

This article explains how the G300 achieves micro-level precision, the key technical advantages behind its performance, and how engineering drawings are used to validate real-world machining capability.Precision machining starts with mechanical stability. The G300 features a high-rigidity machine structure designed to minimize vibration and deformation during cutting.The G300 employs a high-precision motion transmission system, ensuring accurate and repeatable axis movement.

The DEPU G300 Cradle Type Five-Axis Vertical Machining Center is engineered to achieve micron-level precision in demanding high-end machining applications. Through its gantry-type symmetrical structure, high-performance DD cradle rotary table, precision ball screws, and full closed-loop control system, the G300 ensures exceptional rigidity, stability, and accuracy. This article explores the key technologies and design features that enable the G300 to meet the stringent requirements of industries such as aerospace, automotive, and medical equipment manufacturing.

1. Advanced Structural Design for Unmatched Rigidity

The G300 features a gantry-type symmetrical structure, constructed from high-quality cast iron that undergoes dual heat treatments to eliminate residual stress. This design ensures exceptional mechanical stability and minimizes deformation during high-speed cutting operations. The result is a machine capable of maintaining micron-level accuracy even under heavy loads and dynamic conditions.

2. High-Performance DD Cradle Rotary Table

At the heart of the G300’s precision is its direct-drive (DD) cradle rotary table, equipped with YRT bearings for superior load-bearing capacity and rotational accuracy. Paired with HEIDENHAIN position feedback devices, the table enables precise angular positioning and smooth motion, critical for complex five-axis machining tasks.

3. Precision Motion Control with Full Closed-Loop Feedback

Every axis of the G300 is fitted with high-precision NSK/THK ball screws and HEIDENHAIN linear encoders, ensuring accurate linear motion and real-time position correction. The full closed-loop control system continuously monitors and adjusts the machine’s movements, guaranteeing long-term accuracy and repeatability.

4. Customizable High-Speed Spindle Options

The G300 offers a range of high-performance electric spindles with speeds up to 24,000 RPM and torque options up to 123.4 N.m. This flexibility allows manufacturers to tailor the machine to specific materials and applications, from aluminum to hardened steels, without compromising precision.

5. Multi-Specification Tool Magazine for Versatility

With optional 24T, 32T, 40T, or 60T tool magazines, the G300 supports diverse machining operations without frequent manual tool changes. This enhances productivity while maintaining the precision required for intricate parts.

6. Application-Ready for High-End Industries

The G300 milling machine is designed to excel in sectors where precision is non-negotiable:

  • Aerospace: Machining turbine blades, structural components, and landing gear parts.

  • Automotive: Producing molds, prototypes, and high-performance engine components.

  • Medical: Crafting implants, surgical instruments, and diagnostic device parts.

Featured Blogs
How High-Load 5-Axis Machines Support Energy and Marine Manufacturing

How High-Load 5-Axis Machines Support Energy and Marine Manufacturing

High-load 5-axis machines enable stable machining of oversized, heavy components in energy and marine sectors where rigidity and reliability are critical.

Roller Linear Guides vs. Ball Guides: What Truly Improves Dynamic Stability?

Roller Linear Guides vs. Ball Guides: What Truly Improves Dynamic Stability?

Dynamic stability determines machining accuracy under real cutting conditions. This article explains how roller linear guides vs ball guides affect rigidity, vibration control, and long-term performance.

The Real Reason 5-Axis Machining Improves Part Consistency

The Real Reason 5-Axis Machining Improves Part Consistency

Part consistency isn’t just about accuracy—it’s about repeatability across setups, batches, and time. This article explains why 5-axis machining fundamentally improves consistency in complex manufacturing.

Is 5-Axis CNC Always the Right Choice for Complex Parts?

Is 5-Axis CNC Always the Right Choice for Complex Parts?

5-axis CNC excels at complex geometries—but complexity alone doesn’t always justify it. This article explains when 5-axis is essential and when simpler solutions make more sense.

What Manufacturers Should Evaluate Before Scaling 5-Axis Production

What Manufacturers Should Evaluate Before Scaling 5-Axis Production

Scaling 5-axis production is not just about buying more machines. It requires a clear evaluation of process stability, automation readiness, and long-term accuracy.

How Advanced 5-Axis Machines Support Smart Manufacturing

How Advanced 5-Axis Machines Support Smart Manufacturing

Smart manufacturing depends on machines that think, adapt, and remain stable. Advanced 5-axis systems form the physical backbone of intelligent production.