As a China Manufacturer, Winway offers the Carbide PCB V-Cut Cutter, a solid carbide circular cutting tool designed for PCB V-groove machining. Also known as an alloy V-cut cutter or PCB V-groove cutter, it features a disc-shaped toothed design with a V-shaped cutting edge. Installed on a PCB V-cut machine, it cuts grooves on the board surface while leaving a thin connection layer for subsequent depaneling. Multiple tooth configurations, V angles and dimensions are available to meet different PCB processing requirements. Its wear-resistant carbide construction supports stable cutting, neat groove surfaces, reduced burrs and long service life in continuous production.
The Carbide PCB V-Cut Cutter is a carbide disc-shaped toothed blade designed for PCB V-groove processing. It machines V-shaped score lines on printed circuit boards, allowing the boards to be separated along the grooves after assembly. The cutter is available with different dimensions and V angles, with custom manufacturing supported according to processing requirements.
● Carbide construction: Made from a high-quality carbide blank with high hardness, excellent wear resistance and long service life.
● Multiple V angles: Available in 15°, 20°, 30°, 45°, 60° and 90° to meet different V-cut process requirements.
● Precision tooth profile: Precision-ground teeth help produce smooth V-groove surfaces with low burr formation and stable cutting performance.
● Flexible specifications: Multiple outer diameters, bore sizes and tooth quantities are available for different machine configurations.
● Custom manufacturing: Size, angle and thickness can be customized according to customer drawings.
The Carbide PCB V-Cut Cutter is available in the following specifications. Custom dimensions can be discussed according to machine and processing requirements.
| Ordinal | Outer Diameter (D) | Teeth Number (Z) | V Angle | Thickness (B) | Inner Diameter (d) |
| 01 | 120 | 100 | 15°, 20°, 30°, 45°, 60°, 90° | 2.0 | 40、25.4 |
| 02 | 100 | 100 | 15°, 20°, 30°, 45°, 60°, 90° | 2.0 | 40 |
| 03 | 66 | 36 | 20°, 30°, 45°, 60°, 90° | 2.0 | 25.4 |
| 04 | 39.5、51、56 | 24、32、40、48 | 20°, 30°, 45°, 60°, 90° | 2.0/2.4 | 17、25、25.4、30 |
● CEM-1 and CEM-3 composite substrates
● Aluminum base boards
● Multilayer circuit boards
The Carbide PCB V-Cut Cutter can be selected according to board material, thickness, required groove depth and machine specifications. Special board materials should be evaluated before ordering.
1. Pre-installation inspection: Clean the tool holder and spindle. Check the cutter teeth for chipping, cracks or other visible damage.
2. Secure mounting: Install the cutter firmly and check its runout to ensure it is within the allowable tolerance.
3. Idle running test: Run the machine without feeding the PCB and confirm that there is no abnormal vibration.
4. Trial cutting: Perform a trial V-cut and adjust cutting depth and feed speed to control the remaining connection thickness.
5. Work-area cleaning: Keep the cutting area clean and remove dust and debris to protect the cutting teeth.
6. Production inspection: Regularly inspect tooth wear during continuous production and replace or regrind the cutter when necessary.
| Fault Phenomenon | Possible Cause | Quick Countermeasure |
| Inconsistent V-groove depth | Tool runout, loose spindle, board feeding offset | Recalibrate concentricity, lock spindle tightly, inspect feeding guide rail |
| Large burrs and fuzzing at groove bottom | Cutting edge wear, improper tooth selection, excessive feed speed | Replace or resharpen tool, reduce feed rate, select higher-tooth cutter |
| Board delamination and whitening | Improper cutting speed, dull cutting edge, excessive single cutting depth | Optimize rotation speed parameters, replace tool, reduce single cutting depth |
| Chipped teeth and broken tool | Eccentric clamping, foreign matter on board, aggressive feed | Stop machine for inspection, clean foreign matter on board, lower feed speed |
| V-groove angle deviation | Wrong tool angle selection, tilted tool mounting | Verify tool angle, reinstall tool horizontally |
● Daily cleaning: Clean dust and resin debris from the cutter surface after production.
● Tooth inspection: Regularly check the cutting teeth for wear, chipping or damage.
● Safe storage: Store the cutter in a dedicated protective box and avoid collision with hard objects.
● Rust prevention: For long-term storage, apply a thin layer of anti-rust oil and keep the cutter in a dry environment.
● Regrinding: A worn Carbide PCB V-Cut Cutter can be sent back for regrinding service.
A1: It is mainly used for FR4 PCB, CEM composite substrates, aluminum base boards and multilayer circuit boards. Special plates can be evaluated before ordering.
A2: Optional angles include 15°, 20°, 30°, 45°, 60° and 90°. The suitable angle depends on the PCB design and required V-groove profile.
A3: Yes. Outer diameter, thickness, inner hole and V angle can be customized according to customer requirements and machine specifications.
A4: Hard impurities on the PCB board, excessive cutting depth, eccentric clamping or aggressive feeding can cause tooth chipping. Check the board and machine setup before resuming operation.
A5: Yes. The Carbide PCB V-Cut Cutter supports regrinding after wear. The cutter condition should be checked to determine whether regrinding is suitable.
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Building 17, Yonglida Tiansheng Industrial Park, No. 50 Gangkou Avenue, Wanjiang District, Dongguan City, Guangdong Province, China
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