| GNC series CNC gantry boring and milling machine, inheriting the strong rigidity and high stability of gantry machines, is equipped with high-rigidity spindles, advanced CNC systems and other components. It can efficiently perform drilling, tapping and milling surface processing on large workpieces, large plates, wind turbine flanges, discs, rings and other workpieces. |
Functional Positioning for Large Workpiece Machining
The GNC2010–GNC4025 series is engineered for manufacturers requiring reliable, high-capacity CNC gantry drilling and milling solutions. Target users include engineering firms and production facilities managing large plates, turbine flanges, and structural components. By integrating with production lines that may already employ precision grinding machines, these gantry machines deliver consistent high-quality surface treatment. The fully CNC-controlled operation ensures minimal manual input, optimizing workflow stability for heavy-duty applications that demand accuracy and repeatability. Their design supports industrial-scale machining environments where precision and volume are critical.
Advanced Technical Features and Measurable Specifications
These machines feature a robust gantry framework with high rigidity spindles, supporting drilling diameters up to Φ90 mm and tapping up to M36, accommodating various heavy component sizes. Model configurations offer workbench dimensions ranging from 1600×1600 mm to 4000×2500 mm, enabling tailored fitment for specific parts. The center water filtration spindle is optimized for U-drill processes, enhancing cutting fluid delivery. Compatible with BT40 and BT50 spindle tapers and optional tool magazines, these machines provide seamless integration into automated production systems. Their compatibility with precision surface grinding machines ensures precise sequential finishing on large workpieces.
Industry Applications and Integration in Production Systems
The GNC series excels in aerospace, wind turbine manufacturing, and heavy machinery production where drilling, tapping, and milling of large plates and discs are routine. The machines facilitate in-house fabrication of high-precision components, significantly reducing reliance on subcontracting. Their substantial work envelope and rigid structure enable efficient processing of large turbine flanges and structural parts, aligning well with precision grinding machine manufacturers’ lines for finishing. This enhances production throughput while maintaining dimensional accuracy and surface quality essential for critical applications demanding advanced machining tolerances.
Customers can achieve efficient drilling, tapping and milling of large workpieces with relatively low equipment cost investment. The fully CNC operation without programming improves processing quality and efficiency, and reduces labor costs. |
![]() |
| Standard equipped with a water filtration system at the center of the spindle, suitable for U-drill processing. | ![]() |
■ Specifications
| Machine Model | GNC1020 | GNC1616 | GNC2016 | GNC2020 | GNC2525 | GNC3020 | GNC4025 |
| Workbench size | 2000x1000mm | 1600x1600mm | 2000x1600mm | 2000x2000mm | 2500x2500mm | 3000x2000mm | 4000x2500mm |
| Max. drilling diameter | Φ50 | Φ75 | Φ75 | Φ90 | Φ90 | Φ90 | Φ90 |
| Max. tapping diameter | M24 | M32 | M32 | M36 | M36 | M36 | M36 |
| Distance from the spindleface to the worktable surface | 160-760mm | 200-800mm | |||||
| Spindle taper hole | BT40 | BT50 (with a center water outlet function) | |||||
| Spindle motor powe | 7.5/11 KW | 11/15 KW | 15/22 KW | ||||
| Max. spindle speed | 3000rpm | ||||||
| X-axis travel distance | 2000mm | 1600mm | 2000mm | 2000mm | 2500mm | 3000mm | 4000mm |
| Y-axis travel distance | 1000mm | 1600mm | 1600mm | 2000mm | 2500mm | 2000mm | 2500mm |
| Z-axis travel distance | 600mm | 600mm | 600mm | 600mm | 600mm | 600mm | 600mm |
| X,Y,Z fast movement speed | 10/15/15 m/min | 10/12/12 m/min | |||||
| Spindle taper hole | 0.015/2000mm | 0.02/2000mm | |||||
| Tool magazine capacity | Straight-line tool magazine (Optional configuration) Disc-Type 24Tools |
||||||
| Max. weight of cutting tools | 8KG(BT40) / 15KG(BT50) | ||||||
| Machine size (L x W x H) cm | 350x180x220 | 300x380x220 | 350x380x220 | 350x420x220 | 400x460x220 | 4500x420x220 | 550x460x220 |
| Standard weight | 9 T | 13 T | 16 T | 25 T | 28 T | 28 T | 35 T |
Product Advantages
Structural and Design Innovations for Heavy-Duty Machining
The gantry construction prioritizes rigidity and stability to handle large, heavy workpieces without deformation, critical for precision surface grinding machine workflows. The modular spindle design, featuring center water filtration, enhances cooling and chip removal during U-drill operations. Machine components utilize high-grade materials and proprietary tempering processes for long-term dimensional stability. The availability of various model sizes affords scalability, enabling users to adapt system footprint and capacity according to evolving production needs. Integration-ready CNC controls ensure compatibility with existing precision grinding machine manufacturer systems and automation protocols.
Performance Enhancements and Operator Efficiency
Employing a fully CNC-operated interface, the units reduce manual programming errors and enable repeatable precision across large production batches. The system supports flexible tooling options, streamlining setup changes and minimizing downtime. Robust mechanical design contributes to vibration damping, which improves cutting accuracy and surface finish quality, complementing precision grinding machine processes downstream. Capable of achieving stable cycles at high-speed spindle rotation, these machines promote productivity improvements and reduce labor intensity, ultimately delivering measurable ROI for production systems requiring large-scale, high-precision manufacturing.
■ Machine Tool Configuration
CNC system: KND,SYNTEC, ![]() |
High-quality spindle, imported bearings![]() |
PMI, HIWIN, HTPM 35、45 Precision Grade P roller-type linear guide![]() |
PMI, HIWIN C3 grade precision ground ball screw![]() |
High-quality tool clamping cylinder![]() |
NSK, SKF, FAG P4 grade imported angular contactpaired bearings![]() |
Precision high-rigidity coupling![]() |
Imported high-torque synchronous belts![]() |
High-quality disc-type /Umbrella-type ATC Tool magazine![]() |
Standard equipped with chain-typechip conveyor and small iron chip cart.![]() |
||
Hubei Shangjie Precision Machinery Manufacturing Co., Ltd., established in 2007, operates a 20,000m² workshop. Our product range includes CNC turning centers, vertical and horizontal machining centers, CNC gantry machining centers, and precision grinding machines. We strive to be a comprehensive equipment supplier with diversified, intelligent, precision, and serialized products. We hold ISO9001 and ISO14001 certifications and have full industrial manufacturing capabilities encompassing product design, quality control, casting, sheet metal fabrication, painting, precision parts machining, and assembly/testing. All machines are designed and completed independently, ensuring stringent quality control. Our facility features multiple precision machining centers, CNC lathes, laser cutting, and bending machines. We use high-precision instruments such as laser interferometers and dual-axis electronic autocollimators. Castings are made from HT300 high-grade material, tempered, and naturally aged for internal stress relief. Combined with strict quality control, these processes guarantee stable machine quality. Guided by corporate values of rigorous, pragmatic, honest, and responsible practices, we deliver reliable equipment and seek win-win cooperation. Contact us now for your custom quote!
What types of large workpieces can the GNC2010–GNC4025 CNC gantry machine process?
The GNC2010–GNC4025 models handle large workpieces such as wind turbine flanges, large plates, discs, and rings. Their robust gantry design provides the rigidity and stability needed for precise drilling, tapping, and milling on these substantial components, common in heavy-duty industrial applications.
Are there different sizes or customizable configurations available for the gantry drilling and milling machines?
Yes, the product family offers models from GNC1020 to GNC4025 with varying workbench sizes ranging from 2000x1000 mm up to 4000x2500 mm. Customers can choose spindle types, tool magazines, and CNC system options to best fit production demands and part sizes.
How does the machine’s center-spindle water filtration system benefit machining operations?
The center water filtration system located at the spindle center supports U-drill processing by providing efficient cooling and chip removal. This feature improves cutting tool life and machining accuracy on large surfaces, enhancing the performance of the CNC gantry machines.
What after-sales support is available for installation and maintenance of these precision grinding machines?
As a professional manufacturer, we provide technical assistance for installation, operation, and maintenance of our precision grinding machines and CNC gantry centers. Our team ensures proper setup and offers guidance to optimize machine performance for long-term, reliable production.