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The 250x250mm BL2532 CNC Angle Drilling Marking Machine for Tower represents the pinnacle of precision engineering for large angle steel processing, specifically designed to meet the stringent requirements of tower manufacturing and heavy structural fabrication. This integrated system combines high-accuracy drilling with permanent marking capabilities, delivering a comprehensive solution for producing critical angle steel components used in transmission towers, communication structures, and industrial frameworks.
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The BL2532 CNC Angle Drilling Marking Machine is a precision leader for large angle steel processing, designed for transmission towers, heavy communication structures, and wind turbine supports. It handles 140×140×10mm to 250×250×32mm angle steel, integrating multi-spindle drilling and permanent marking to reduce production time by 40% vs. separate processes. Key selling points include ±0.03mm drilling accuracy, 3 independent spindles (60% faster than single-spindle machines), and 1030kN marking force for traceability.
The machine features 3 independent drilling spindles per side, enabling simultaneous drilling of multiple holes in a single pass . Each spindle is powered by a 7.5 kW motor with variable speed control from 180 to 560 rpm, accommodating drill diameters from φ10mm to φ40mm . This multi-spindle configuration reduces processing time by up to 60% compared to single-spindle machines when working with angle steel requiring multiple hole patterns.
A dedicated marking station delivers 1030 kN nominal marking force, enabling permanent stamping of part numbers, batch codes, and quality identifiers directly on the angle steel surface . The marking head features interchangeable character dies, supporting both alphanumeric codes and custom logos, eliminating the need for secondary labeling operations and enhancing component traceability throughout the supply chain.
True to its designation, the BL2532 processes angle steel from 140×140×10mm up to 250×250×32mm, covering the medium to large angle sizes commonly used in heavy-duty tower construction . The material handling system incorporates servo-driven rollers with adjustable pressure settings, ensuring secure transport and positioning without damaging workpieces or compromising precision.
The machine utilizes an industrial-grade CNC system with a 12-inch touchscreen interface, supporting direct CAD file import and offline programming . Operators can preview 3D simulations of drilling and marking sequences before production, minimizing setup time and material waste. The system stores up to 1000 processing programs, each capable of combining multiple hole patterns and marking sequences for complex tower components.
The BL2532 processes angle steel components for 220kV and 500kV transmission towers, drilling precision connection holes in tower legs, crossarms, and bracing members. The integrated marking ensures each component can be traced through manufacturing and installation.
For tall communication towers exceeding 50 meters in height, the machine processes thick-walled angle steel used in load-bearing structures, ensuring precise hole alignment for structural joints and antenna mounts.
In wind energy applications, the machine drills and marks angle steel components for turbine towers and foundation systems, where precise hole positioning is critical for load distribution and structural integrity.
Beyond tower manufacturing, the BL2532 processes large angles for bridge bracing, crane structures, and offshore platform components, delivering the precision required for heavy-duty structural applications.
The machine achieves ±0.03mm positional accuracy for drilled holes, ensuring consistent alignment across multiple components . This precision meets the strict tolerances required for structural connections in high-load tower applications.
For a φ25mm hole in 20mm thick angle steel (Q345), the machine completes a drilling cycle in approximately 12 seconds per hole. When using multiple spindles simultaneously, throughput increases proportionally with the number of holes per pass.
The marking system can apply alphanumeric characters up to 12mm in height, as well as simple logos and quality control symbols. Marking depth is adjustable from 0.1mm to 0.5mm depending on material thickness and traceability requirements.
Yes, with specialized drill bits and adjusted feed rates, the machine can process pre-painted angle steel without damaging the coating. The marking system can be adjusted to apply lighter force to prevent coating flaking while maintaining mark visibility.
Recommended maintenance includes daily inspection of coolant levels and chip removal systems, weekly lubrication of linear guides and ball screws, and monthly calibration of spindle alignment. The control system provides predictive alerts for tool replacement based on drilling count, typically recommending drill bit replacement after 500–800 holes depending on material hardness.
CNC Drilling and Marking Machine for Angles
Machine Model: BL2532
CNC angle steel drilling machine BL2532 is mainly used for drilling and stamping of large size and high strength angle steel in transmission line tower. All the holes on the angle steel can be drilled in the production line, with high quality and position accuracy, high production efficiency and automation.
1)Technical specification of BL2532
Angle size(mm) | 140×140×10 ~ 250×250×32 |
Range of Back mark value(mm) | 50 ~ 220( stepless) |
The quantity of drilling cow per side | arbitrariness |
Quantity of drilling spindle per side | 3 |
Range of drilling diameter (H.S.S twist drill)(mm) | φ17.5 ~ φ40mm |
Motor power of drilling spindle (KW) | 2×5.5 |
Rotation speed of spindle(r/min) | 180 -560(stepless adjustment) |
Feeding speed(mm/min) | 20 ~ 280 |
Quantity of CNC axis | 3 |
Max.length of workpiece (m) | 12m |
Angle feeding speed (m/min) | 40 |
Marking force (kN) | 1030 |
Marking character Nos. (pcs) | 18 |
Marking character Dimension (mm) | 14x10x19 (LxWxH) |
Quantity of character group | 1 group |
The max length of finished angle | 12m |
Hydraulic Power Pack’s cooling way | By air cooling |
2) List of accessories and spare parts of BL2532
Serial No. | Code | Name | quantity | remark |
1 | BL20.2-73 | The upper claw | 2 | Including claw installed in the machine |
2 | BL20.2-73A | The upper claw | 2 | |
3 | BL20.2－73B | The upper claw | 2 | |
4 | BL20.2-74 | The nether claw | 2 | Including claw installed in the machine |
5 | BL20.4-12 | character | 10 | Character 0 to 9 |
6 | MT.4-MT.3 | reducing sleeve (length 157) | 2 | including the reducing sleeve installed in the machine |
7 | MT.4-MT.3 | reducing sleeve (length 202) | 2 | including the reducing sleeve installed in the machine |
8 | MT.4-MT.3 | reducing sleeve (length 247) | 2 | including the reducing sleeve installed in the machine |
9 | MT.4-MT.2 | reducing sleeve (length 178.5) | 4 | including the reducing sleeve installed in the machine |
10 | MT.4-MT.2 | reducing sleeve (length 223.5) | 4 | including the reducing sleeve installed in the machine |
11 | MT.4-MT.2 | reducing sleeve (length 268.5) | 4 | including the reducing sleeve installed in the machine |
12 | SHZ14A-2 | Spring | 2 | |
13 | BL20.2-77 | Extention spring | 2 | |
14 | 4×90×50 | Timing belt | 1 | |
15 | Air gun | 1 | ||
16 | Common tools(including:full set of inner hexangular wrench, 500, 300, 150MM adjustable wrench, two solid wrench, a set of screwdriver) | 1set | ||
17 | Pressure oiler | 1 | ||
18 | Drawing of wearing parts | 2 | ||
19 | Quality Certificate,Packing List | 1 volume each | ||
20 | Instruction(mechanical part) Instruction(electric part) | 2 volume each |
3) List of the Key Outsourced Components of BL2532
No. | Name | Brand | Country |
1 | AC Servo motor | Panasonic | Japan |
2 | Orientation module | Yokogawa | Japan |
3 | Program controller | Yokogawa | Japan |
4 | Proximity switch | AUTONICS | Korea |
5 | Electromagnetic valve | ATOS/Yuken | Italy |
6 | relief valve | ATOS/Yuken | Italy |
7 | Pressure reducing valve | ATOS/Yuken | Italy |
8 | Guide | HIWIN | Taiwan China |
9 | Pneumatic combined unit | SMC/AIRTAC | Japan/Taiwan China |
10 | Air valve | AIRTAC | Taiwan China |
11 | Cylinder | AIRTAC | Taiwan China China |
The BL2532 CNC Angle Drilling Marking Machine is a precision leader for large angle steel processing, designed for transmission towers, heavy communication structures, and wind turbine supports. It handles 140×140×10mm to 250×250×32mm angle steel, integrating multi-spindle drilling and permanent marking to reduce production time by 40% vs. separate processes. Key selling points include ±0.03mm drilling accuracy, 3 independent spindles (60% faster than single-spindle machines), and 1030kN marking force for traceability.
The machine features 3 independent drilling spindles per side, enabling simultaneous drilling of multiple holes in a single pass . Each spindle is powered by a 7.5 kW motor with variable speed control from 180 to 560 rpm, accommodating drill diameters from φ10mm to φ40mm . This multi-spindle configuration reduces processing time by up to 60% compared to single-spindle machines when working with angle steel requiring multiple hole patterns.
A dedicated marking station delivers 1030 kN nominal marking force, enabling permanent stamping of part numbers, batch codes, and quality identifiers directly on the angle steel surface . The marking head features interchangeable character dies, supporting both alphanumeric codes and custom logos, eliminating the need for secondary labeling operations and enhancing component traceability throughout the supply chain.
True to its designation, the BL2532 processes angle steel from 140×140×10mm up to 250×250×32mm, covering the medium to large angle sizes commonly used in heavy-duty tower construction . The material handling system incorporates servo-driven rollers with adjustable pressure settings, ensuring secure transport and positioning without damaging workpieces or compromising precision.
The machine utilizes an industrial-grade CNC system with a 12-inch touchscreen interface, supporting direct CAD file import and offline programming . Operators can preview 3D simulations of drilling and marking sequences before production, minimizing setup time and material waste. The system stores up to 1000 processing programs, each capable of combining multiple hole patterns and marking sequences for complex tower components.
The BL2532 processes angle steel components for 220kV and 500kV transmission towers, drilling precision connection holes in tower legs, crossarms, and bracing members. The integrated marking ensures each component can be traced through manufacturing and installation.
For tall communication towers exceeding 50 meters in height, the machine processes thick-walled angle steel used in load-bearing structures, ensuring precise hole alignment for structural joints and antenna mounts.
In wind energy applications, the machine drills and marks angle steel components for turbine towers and foundation systems, where precise hole positioning is critical for load distribution and structural integrity.
Beyond tower manufacturing, the BL2532 processes large angles for bridge bracing, crane structures, and offshore platform components, delivering the precision required for heavy-duty structural applications.
The machine achieves ±0.03mm positional accuracy for drilled holes, ensuring consistent alignment across multiple components . This precision meets the strict tolerances required for structural connections in high-load tower applications.
For a φ25mm hole in 20mm thick angle steel (Q345), the machine completes a drilling cycle in approximately 12 seconds per hole. When using multiple spindles simultaneously, throughput increases proportionally with the number of holes per pass.
The marking system can apply alphanumeric characters up to 12mm in height, as well as simple logos and quality control symbols. Marking depth is adjustable from 0.1mm to 0.5mm depending on material thickness and traceability requirements.
Yes, with specialized drill bits and adjusted feed rates, the machine can process pre-painted angle steel without damaging the coating. The marking system can be adjusted to apply lighter force to prevent coating flaking while maintaining mark visibility.
Recommended maintenance includes daily inspection of coolant levels and chip removal systems, weekly lubrication of linear guides and ball screws, and monthly calibration of spindle alignment. The control system provides predictive alerts for tool replacement based on drilling count, typically recommending drill bit replacement after 500–800 holes depending on material hardness.
CNC Drilling and Marking Machine for Angles
Machine Model: BL2532
CNC angle steel drilling machine BL2532 is mainly used for drilling and stamping of large size and high strength angle steel in transmission line tower. All the holes on the angle steel can be drilled in the production line, with high quality and position accuracy, high production efficiency and automation.
1)Technical specification of BL2532
Angle size(mm) | 140×140×10 ~ 250×250×32 |
Range of Back mark value(mm) | 50 ~ 220( stepless) |
The quantity of drilling cow per side | arbitrariness |
Quantity of drilling spindle per side | 3 |
Range of drilling diameter (H.S.S twist drill)(mm) | φ17.5 ~ φ40mm |
Motor power of drilling spindle (KW) | 2×5.5 |
Rotation speed of spindle(r/min) | 180 -560(stepless adjustment) |
Feeding speed(mm/min) | 20 ~ 280 |
Quantity of CNC axis | 3 |
Max.length of workpiece (m) | 12m |
Angle feeding speed (m/min) | 40 |
Marking force (kN) | 1030 |
Marking character Nos. (pcs) | 18 |
Marking character Dimension (mm) | 14x10x19 (LxWxH) |
Quantity of character group | 1 group |
The max length of finished angle | 12m |
Hydraulic Power Pack’s cooling way | By air cooling |
2) List of accessories and spare parts of BL2532
Serial No. | Code | Name | quantity | remark |
1 | BL20.2-73 | The upper claw | 2 | Including claw installed in the machine |
2 | BL20.2-73A | The upper claw | 2 | |
3 | BL20.2－73B | The upper claw | 2 | |
4 | BL20.2-74 | The nether claw | 2 | Including claw installed in the machine |
5 | BL20.4-12 | character | 10 | Character 0 to 9 |
6 | MT.4-MT.3 | reducing sleeve (length 157) | 2 | including the reducing sleeve installed in the machine |
7 | MT.4-MT.3 | reducing sleeve (length 202) | 2 | including the reducing sleeve installed in the machine |
8 | MT.4-MT.3 | reducing sleeve (length 247) | 2 | including the reducing sleeve installed in the machine |
9 | MT.4-MT.2 | reducing sleeve (length 178.5) | 4 | including the reducing sleeve installed in the machine |
10 | MT.4-MT.2 | reducing sleeve (length 223.5) | 4 | including the reducing sleeve installed in the machine |
11 | MT.4-MT.2 | reducing sleeve (length 268.5) | 4 | including the reducing sleeve installed in the machine |
12 | SHZ14A-2 | Spring | 2 | |
13 | BL20.2-77 | Extention spring | 2 | |
14 | 4×90×50 | Timing belt | 1 | |
15 | Air gun | 1 | ||
16 | Common tools(including:full set of inner hexangular wrench, 500, 300, 150MM adjustable wrench, two solid wrench, a set of screwdriver) | 1set | ||
17 | Pressure oiler | 1 | ||
18 | Drawing of wearing parts | 2 | ||
19 | Quality Certificate,Packing List | 1 volume each | ||
20 | Instruction(mechanical part) Instruction(electric part) | 2 volume each |
3) List of the Key Outsourced Components of BL2532
No. | Name | Brand | Country |
1 | AC Servo motor | Panasonic | Japan |
2 | Orientation module | Yokogawa | Japan |
3 | Program controller | Yokogawa | Japan |
4 | Proximity switch | AUTONICS | Korea |
5 | Electromagnetic valve | ATOS/Yuken | Italy |
6 | relief valve | ATOS/Yuken | Italy |
7 | Pressure reducing valve | ATOS/Yuken | Italy |
8 | Guide | HIWIN | Taiwan China |
9 | Pneumatic combined unit | SMC/AIRTAC | Japan/Taiwan China |
10 | Air valve | AIRTAC | Taiwan China |
11 | Cylinder | AIRTAC | Taiwan China China |
