BT40 Taper Of Drilling Spindle High Speed CNC Angle Drilling And Marking Machine For Tower
Product Usage:
The CNC angle steel drilling and marking production line is specifically designed for high-precision drilling and punching of large-scale, high-strength angle steel used in transmission tower applications. The system is capable of completing all required hole configurations on angle steel profiles while ensuring excellent machining quality and highly accurate positional control. In addition, the production line offers high productivity and a high level of automation.
Main parameters:
| Model |
ADM3635 |
| Angle size (mm) |
100×100×10~360×360×35 |
| Max. length of blank(m) |
14 |
| Taper of drilling spindle |
BT40 |
| Max. Drilling diameter (mm) |
Ф40 |
| Qty. of drill on each side (pcs) |
3 (6 in total on both side) |
| Max.spindle rotation speed (r/min) |
6000 |
| Max.cutting speed of drill (m/min) |
200 |
| CNC axes |
9 |
| Range of back mark (mm) |
50-330 (stepless) |
| Max. angle feeding speed (m/min) |
40 |
| Marking force (kN) |
1000/1200 |
| Qty. of character group |
4 |
| Qty. of character in each group |
18 |
| Character size(mm) |
14×10×19 |
| Drill bit cooling system |
Air atomization dry internal cooling |
| Programming mode |
Lofting software or instruction programming |
| Overall dimensions (m) |
34×8.9×3 |
Product Features:
1. Advanced Automated Operation
The production line integrates a fully automated material handling system, including horizontal feeding conveyors, rotary loading racks, automatic discharge units, and transfer mechanisms. All drilling and punching processes are completed within a single continuous workflow. The entire operation is fully automated, significantly reducing labor requirements while improving production efficiency and operational stability.
2. High-Precision Drilling Unit
The drilling spindle adopts high-quality Taiwan-manufactured BT40 precision spindles with internal cooling capability, ensuring excellent drilling performance and high dimensional accuracy. The drilling system is equipped with six CNC-controlled drilling heads, arranged symmetrically with three units on each side of the angle steel. For holes with identical diameters and consistent offsets from the upper flange edge, paired drilling heads on both sides can operate simultaneously, significantly increasing machining efficiency.
3. User-Friendly Human–Machine Interface
The control system features bilingual operation in Chinese and English, offering an intuitive interface with clear visualization of workpiece drawings for easy operation and monitoring.
4. Simplified Programming Process
Programming is highly efficient and user-friendly. Operators only need to input basic parameters such as workpiece dimensions, hole diameter, spacing, and production quantity. The system also supports direct import of CAD/CAM nesting data and is compatible with TEKLA-generated .NC1 files, ensuring seamless data integration and streamlined production workflow.
5. High-Quality Core Components
Key hydraulic, pneumatic, and electrical components are selected from internationally recognized brands, ensuring stable performance, high reliability, and long service life.
6. Intelligent Fault Diagnosis
The equipment is equipped with an automatic self-diagnostic system, enabling rapid detection and identification of faults for improved maintenance efficiency.
7. Optional Cutting System
An optional dual-blade shearing unit is available, providing high-precision cutting performance and improved processing efficiency through advanced shearing technology.
The above test specimens cover standard specifications and typical hole patterns used in transmission tower manufacturing. They allow customers and inspection personnel to directly evaluate machining accuracy, processing quality, and overall equipment performance, providing a reliable reference for assessing suitability for real production requirements.
In ultra-high-voltage (UHV) transmission line construction, where towers must withstand extreme environmental conditions and heavy structural loads, this equipment plays a critical role in processing the angle steel components that form the primary load-bearing structure of the towers. It performs high-precision drilling and punching operations on angle steel used in tower bodies, cross-arms, and other key structural parts, ensuring accurate hole positioning and reliable joint strength. As a result, it significantly enhances the structural integrity, operational safety, and long-term service reliability of transmission towers throughout their operational lifecycle.
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