Laser VIN engraving machine for production assembly lines

Laser VIN engraving machine for production assembly lines
Laser VIN engraving machine for production assembly lines

Laser VIN Engraving Equipment for Production Assembly Lines

  1. Overall Technical Specifications (At-a-Glance)
No.ItemTypical Value / RangeNotes
1Laser TypePulsed fiber (Q-switch or MOPA)1 064 nm wavelength
2Rated Power20 W / 30 W / 50 W / 100 W10–100 % adjustable
3Marking Field110 × 110 mm or 170 × 170 mm200 × 200 mm optional
4Engraving Depth0.20–0.35 mm (programmable)Meets GB 16735 ≥ 0.20 mm
5Line Width0.10–0.15 mm50 W on hardened steel
6Repeat Accuracy±0.05 mmIncludes galvo & mechanical
7Scan Speed≤ 7 000 mm/sJump speed
8PositioningPhoto-sensor + vision correction2 MP camera, ±2 mm offset
9CommunicationProfinet / EtherNet-IP / RS-485 / TCP-IPReal-time with MES/PLC
10Safety ClassClass 1 (fully enclosed)Door interlock + light curtain
  1. Laser Details

2.1 Laser Comparison

Parameter20 W30 W50 W100 W
Recommended Mat.Al, mild steelHardened steelHardened steel, TiThick paint
17-char VIN time25–30 s18–22 s12–15 s6–10 s
CoolingAirAirAirWater
Fiber Length3 m3 m5 m5 m
Expected Life100 000 h100 000 h100 000 h100 000 h

2.2 Adjustable Pulse Parameters

NameRangeEffect Description
Frequency20–200 kHzHigh → shallow & smooth; Low → deep & rough
Pulse Width4–200 nsShort → black anodized Al; Long → deep mark
Duty Cycle10–100 %Fine power tuning with average power
  1. Mechanical & Line Integration

3.1 Machine Dimensions & Mounting

OrientationDimensions (mm)WeightMounting Holes
Standard380 × 180 × 520≈15 kg4 × M8, 150 × 100 mm
Rotated 90°180 × 380 × 520≈15 kgMulti-pattern plate for gantry/robot

3.2 Motion Options

SolutionRepeatabilityTact ImpactApplication Scenario
Fixed gantry±0.02 mm+0 sNew line, one-time investment
Servo slide±0.05 mm+2 sMixed-model line
6-axis robot±0.10 mm+3–4 sFlexible or retrofit line
  1. Process Window (Hardened Steel Example)
Target DepthPowerFrequencySpeedPassesRa (µm)
0.20 mm30 W60 kHz600 mm/s22.1
0.25 mm50 W40 kHz400 mm/s22.8
0.30 mm50 W30 kHz300 mm/s33.4

Note: First article metallographic check required; pre-paint ablation 0.02–0.03 mm when coating present.

  1. Inspection & Traceability
FunctionHardwareSpecificationData Flow
OCR reading2 MP camera + telecentric≥99.5 % read rateUpload to MES
Depth checkLaser confocal sensor±0.01 mm accuracyPLC OK/NG decision
Code bindingBarcode/RFID reader1D/2D ≤0.3 s readVIN ↔ mark file link
  1. Environment & Utilities
ItemRequirementRemarks
Power220 VAC ±10 %, 50/60 Hz, 1 kW single-phase100 W model 2 kW
Compressed Air0.5–0.7 MPa, clean & dryLens protection
Cooling WaterDe-ionized, 4 L/min, 20–25 °C100 W model only
Ambient Temp5–45 °CHVAC if outside range
Vibration≤0.5 g, 5–500 HzAdd isolator if higher
  1. Quick Troubleshooting
SymptomLikely CauseQuick Fix
Shallow markHigh freq / fast speedReduce frequency or add passes
Whitish charOil / oxide layerPre-clean or raise power
Galvo driftThermal shift / shockRe-calibrate zero, check heatsink
Comm timeoutBaud mismatchSet both ends 115 200 bps, 8-N-1
  1. Selection Workflow
  2. Confirm material & coating thickness
  3. Choose power using Table 2.1
  4. Calculate tact time → if insufficient, consider dual-station or 100 W
  5. Select motion from Table 3.2
  6. Validate depth with Table 4
  7. Draft technical specification & acceptance protocol

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