Modern CNC band saw cutting machines are specifically designed to accommodate servo-system recalibration. This flexibility of Cutting Limits ensures seamless processing of large-format paper rolls while maintaining cutting precision.
1. System Capabilities & Non-Standard Roll Processing
Modern CNC band saw cutters feature ±15% adjustable cutting ranges beyond standard specifications to accommodate oversized rolls (up to Ø1500mm). The limit adjustment process involves coordinated mechanical and software modifications.
2. Precision Adjustment Protocol
2.1 Material Characterization
- Measure paper density ($ρ$=600-900kg/m³) and hardness (Shore D 40-60)
- Select blade parameters$$T_{tooth} = \frac{t_{paper}}{2} + 0.1mm$$
Where $t_{paper}$=paper thickness (0.05-3mm range)
2.2 Cutting Parameter Matrix
| Material Type | Speed (m/min) | Feed (mm/rev) | Depth (mm) |
|---|---|---|---|
| Newsprint | 80-120 | 0.15-0.25 | Full |
| Kraft | 60-90 | 0.10-0.20 | 2/3 |
| Coated | 40-70 | 0.08-0.15 | 1/2 |
Note: Maintain blade temperature <70°C via MQL cooling
2.3 Limit Adjustment Methods
- Physical Adjustment:
- Loosen M8 limit bolts (torque=12±1Nm)
- Slide end-stops within ±50mm range (resolution=0.5mm)
- Software Override:
G90 G21 G1 X[new_limit] F500 ; Set new travel limit M30 ; Save parametersRequires PLC password (security level 2)
3. Verification & Calibration of Cutting Limits
- Perform test cuts with 200gsm benchmark paper
- Measure dimensional accuracy using laser scanners (ISO 536 tolerance class B)
- Fine$$Δ_{adj} = \frac{(L_{actual} – L_{target})}{2}$$
4. Maintenance & Safety of Cutting Limits
- Daily: Clean limit sensors with IPA (99.9% purity)
- Weekly: Verify mechanical stops for deformation (>0.2mm=replace)
- Monthly: Recalibrate linear encoders (±0.01mm accuracy)
Technical Support:
For OEM-specific protocols, contact:
- YYS Machinery
- LOROCH Technical
: CNC band saw adjustment procedures (2024)
: Circular saw limit modifications (2024)
: Paper cutting parameter standards
: G-code override security protocols
: Encoder calibration guidelines (2023)


