Commonly used tools for cutting PCBs include picosecond laser cutters, plasma cutters, manual cutters, V-groove depanelers and Automatic Cutting Machine.

▌Plasma cutting machine:

Suitable for metal PCB boards, but the cutting speed is slow and may not be effective for some special materials.

 

 

▌Manual Cutting Machine:

Easy to operate and learn, suitable for small factories or individual users. Although the speed is slow and the precision is not high, but its price is low, suitable for users with limited budget.

 

 

▌V-groove Depaneling Machine:

Specialized in cutting PCB boards with V-cut, it is characterized by compact structure, simple and safe operation, and is suitable for PCB boards of various sizes.

 

 

▌Automatic Cutting Machine:

Easy and fast to operate, suitable for PCB boards with V-cut, can minimize internal stress when cutting boards, avoid tin cracks and ensure precision parts are not damaged.

 

 

▋Laser Cutting Machine:

Efficient and precise, this equipment is suitable for cutting a wide range of materials, including FPC/PCB boards, polymer materials such as polyimide, non-metallic materials such as ceramics, quartz, and a variety of metal and alloy materials.

 

 

Choosing the right tool depends on specific needs and budget. Automatic Cutting Machine are relatively the most cost-effective, if you need high precision and high efficiency cutting budget, laser cutting machine is the right choice; if the needs are simple and budget is limited, manual cutting machine or V-groove depaneling machine is more suitable.

 

 

 

Maybe You Ask

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1.Comparison of Parameters of Different Types of PCB Depaneling Machines (March 2025)

 

The following based on the current mainstream technology and market applications, laser depaneling machine in the accuracy and flexibility of the advantage, but the cost is higher; mechanical depaneling machine is more suitable for low-cost mass production scenarios; automation models are suitable for high-mix, high-precision demand for modern electronics manufacturing, the most cost-effective.

 

First, the laser depaneling machine

● Parameters UV/green laser CO₂ laser

Cutting mode Non-contact laser thermal fusion cutting High-power laser ablation cutting
Applicable materials Flexible circuit board (FPC), thin PCB (≤1mm) Epoxy resin substrate, thick board (≤10mm)
Cutting accuracy ≤0.01mm (microcrack control) ±0.05mm (large heat-affected zone)
Cutting speed 40000mm/min (green light) 2000-8000mm/min
Advantages Burr-free, supports complex pattern cutting, low cost, suitable for thick plates without metal layer
Disadvantages High cost of equipment, the metal layer requires special treatment, large heat-affected zone, limited precision

 

II. Mechanical Depaneling Machine

 

● Milling machine

 

Cutting method: rotary milling cutter mechanical cutting
Applicable materials: hard PCB, multilayer board (≤ 5mm)
Cutting accuracy: ±0.05mm (customized fixtures are required)
Cutting speed: 5000-15000mm/min (off-line)
Advantage: support V-cut and stamp hole hybrid process
Disadvantage: fast tool wear, need regular replacement

 

● Walking Knife Splitting Machine

 

Cutting method: reciprocating blade cutting
Applicable materials: simple linear division of thin plates (≤ 2mm)
Cutting accuracy: ± 0.1mm (more edge burrs)
Cutting speed: 3000-6000mm/min
Advantage: low cost, simple operation
Disadvantage: only support straight line cutting, poor flexibility

 

● Stamping type divider

 

Cutting method: die stamping molding
Applicable materials: large quantities of standardized PCB
Cutting accuracy: ±0.2mm (dependent on mold accuracy)
Cutting speed: 1000-2000 times/hour
Advantage: high efficiency, suitable for single model mass production
Disadvantage: high cost of molds, unable to adapt to design changes

 

III. Automatic Depaneling Machine

 

● Automatic Curve Splitting Machine

 

Cutting method: milling cutter + CCD visual positioning
Applicable materials: high-density HDI boards, soft and hard combination boards
Cutting accuracy: ±0.02mm (dynamic compensation)
Cutting speed: 8000-12000mm/min (in-line)
Advantage: Seamless SMT production line, support fixture-free cutting
Disadvantages: high equipment complexity, large maintenance costs

 

● Duplex Depaneling Machine

 

Cutting mode: laser or milling cutter alternating operation1
Applicable scenarios: assembly line continuous production (efficiency increase of 30%)
Cutting speed: compared with single-station, the overall efficiency increased by 40%
Advantage: reduce downtime, support multi-tasking in parallel
Disadvantages: large footprint, high initial investment

 

Fourth, the selection of recommendations

Precision electronics (such as cell phone modules): give priority to ultraviolet laser depaneling machine (accuracy ≤ 0.01mm)
Thick plate / metal substrate: CO₂ laser or high-power milling cutter depaneling machine (cutting thickness ≤ 20mm)
High-volume standardized production: press-type depaneling machine (the lowest cost)
Flexible production line adaptation: automatic curve depaneling machine (support for fixture-free cutting)

 

 

 

2. PCB Automatic Depaneling Machine Maintenance and Tool Replacement Maintenance Points

I. Daily Maintenance Points

 

● Cleaning and dust prevention

 

Lens/blade cleaning: Clean the surface of the cutting head lens and blade daily with a dust-free cloth dipped in anhydrous alcohol to avoid oil or metal debris affecting the cutting accuracy.
Guide rail and screw cleaning: clean the dust on the guide rail and screw every half a month, and use special lubricant (such as lithium grease) to lubricate to prevent wear and tear jamming.

 

● Optical path and positioning system check

 

Optical path calibration: check the offset of reflector and focusing mirror every week to ensure that the optical path is aligned (error ≤ 0.01mm), and adjust the fixing screws with hexagonal wrench if necessary.
CCD vision calibration: Test the accuracy of vision positioning system every month, correct the image offset by calibration board, make sure the cutting path matches the PCB board marking.

 

● Moving parts fastening

 

Screws and couplings: Quarterly check the tightening status of the transmission system screws and couplings to prevent loosening due to vibration (focus on checking within 1 month after the first use).

 

Second, blade replacement and maintenance

 

● Blade disassembly process

 

Turn off the power of the equipment, wear anti-static gloves, use special tools (such as hexagonal wrench) to dismantle the fixed module of the blade, to avoid hard objects scraping the surface of the blade.
Clean up any remaining debris on the blade holder and clean the mounting slot with a dust-free cloth dipped in alcohol to ensure that no impurities affect the new blade fit.

 

● New blade installation specifications

 

Blade Selection: Select the blade type according to the material thickness (e.g. tungsten carbide blades are suitable for hard PCB, diamond coated blades are suitable for flexible boards).
Installation test: Test the balance of the blade by idling at low speed after installing the blade, observe whether there is any abnormal shaking, and verify the quality of the cutting edge by test cutting samples (no burr is required).

 

● Blade life management

 

Wear monitoring: Record the length of blade use (general life of 500,000 cuts), regularly use a microscope to check the degree of edge wear, and timely replacement of passivated blades.

 

III. Cooling System and Temperature Control

 

• Circulating water maintenance

 

Replace the deionized water once a week, clean the water tank filter to prevent scale from clogging the pipeline (it is recommended that the water temperature is controlled at 20°C-30°C).
Quarterly testing of laser coolant conductivity (standard value <10μS/cm), exceeding the standard need to replace the special coolant.

 

• Environmental temperature and humidity control

 

Working environment temperature to maintain 20 ° C - 45 ° C, humidity 40% - 70%, to avoid high temperatures leading to overheating of the equipment or low humidity triggered by static electricity.

 

Safety Protection and Failure Prevention

 

• Operation protection

 

Maintenance needs to cut off the power supply, wear goggles and dust masks, laser area set grating protection to prevent accidental start.
Regularly check the functional reliability of the emergency stop button, air pressure sensor and other safety modules.

 

• Troubleshooting

 

Cutting burr: check blade wear or laser power attenuation, adjust cutting speed and air pressure parameters.
Positioning offset: Clean the CCD lens and recalibrate the vision system, check the tightness of the drive belt.

 

Critical Maintenance Cycle Recommendations

 

 

projects‌	frequency‌
Blade Cleaning	everyday
Guideway Lubrication	semimonthly
Cooling water replacement	weekly
Optical Path Calibration	weekly
Blade Replacement	Based on wear monitoring

 

Significantly extends equipment life and guarantees PCB depaneling yields (>99.5%) through standardized maintenance processes.

 

 

3.PCB Depaneling Machine Tool Replacement Standard

 

Combined with the current technical specifications (March 2025) and industry practice, PCB depaneling machine tool replacement standards need to be based on life, performance degradation and physical damage and other dimensions of the comprehensive judgment, the specific criteria are as follows:

 

First, life indicators

 

• Cutting number threshold

 

The standard life of tungsten carbide cutting tools is 2 million cuts (calculated as 1000 times per day, about 5 years replacement cycle).
Diamond coated tool life up to 3 million cuts (for high precision flexible boards).

 

• Accumulated working hours

 

After 500 hours of continuous use, a mandatory check of tool wear is required, even if the threshold number of cuts has not been reached.

II. Determination of performance deterioration

 

• Deterioration of cutting quality

 

Burr rate exceeds the standard: the height of the burr at the edge of the PCB after cutting is >0.05mm or the amount of residual burrs increases significantly.

Cutting mark offset: the cutting path deviates from the design trajectory by >0.1mm due to tool wear (to be detected by CCD vision system).

 

• Reduced machining efficiency

 

Cutting time under the same parameters is extended by more than 20% (e.g., the original 1.5 seconds / single-point 40Z copper-thick PCB cutting is extended to 1.8 seconds).

 

III.Physical Damage Determination

 

• Edge defects

 

Chipping / chipping: tool edge chipping or chipping visible to the naked eye (microscopic observation is more accurate).
Coating peeling: localized peeling of diamond or tungsten carbide coating, resulting in cutting surface roughness Ra value > 1.6μm.

 

• Structural deformation

 

Tool radial runout > 0.02mm (detected during idle test), indicating tool body imbalance or spindle wear.

IV. Verification process after replacement

 

• Installation test

 

After the installation of the new tool need to carry out low-speed idling test (speed ≤ 5000rpm), to confirm that there is no abnormal vibration.
Test cut 10-20 pieces of sample boards to verify the quality of the cutting edge (burr height ≤ 0.03mm is qualified).

 

• Parameter calibration

 

Adjust the cutting speed, feed volume and cooling air pressure according to the characteristics of the new tool to ensure compatibility with the equipment.

 

• Key replacement criteria reference table

 

 

Decision type‌	‌Specific criteria‌
life-time threshold	Tungsten steel tool 2 million cuts
excessive burr	Burr height > 0.05mm
Edge defects	Chipping/notching visible to the naked eye
Installation Verification	Test cut sample burr ≤ 0.03mm

 

 

By strictly enforcing the above standards, an increase in PCB scrap rate due to tool failure can be avoided (yield loss <0.5%).

 

 

 

Why Choose Us

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If you have any enquiry, please do not hesitate to contact us. Leave us a message and we will get back to you shortly.

 

huyuanhuajt@126.com
huyuanhua@exe-dg.com

+86-571-88619378
+8613758117448 (Mr. Hu)

Hangzhou Company: Zhejiang SMT Equipment Center, Building 4, No.522 Xingguo Road, Linping Economic Development Zone, Hangzhou
Shanghai Office: Room 609, Building 1, Chengyuan Commercial Plaza, No.518, Rongmei Road, Songjiang District, Shanghai
Dongguan Company: Yixie Technology Building, No.10, Yongtou Shanquan Road, Chang'an Town, Dongguan City