- 4FT Rotapy Cutting Line
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Machine
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Veneer Patching Machine – Turn Defective Veneer into Premium Grade Panels
🪵 Product Overview
The Veneer Patching Machine (also known as a veneer patcher or plywood veneer repair machine) is a specialized piece of equipment designed to remove natural defects such as knots, holes, cracks, and scars from wood veneer sheets, and replace them with high-quality solid wood patches. As large-diameter logs become increasingly scarce, patching technology is essential for maximizing usable veneer from smaller logs and improving the overall yield and quality of plywood panels.
The core principle of veneer patching is to upgrade veneer quality by replacing defective areas with good-quality veneer. When this is done by machine, the result is a combination of perfect quality with higher yield and capacity. Patched veneer has the same technical properties as good face-quality veneer. In other words, for the same quality, patching is cheaper and will increase your profit margins.
📋 Technical Specifications (Representative Model)
| Parameter | Value |
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| Model | Automatic / Semi-Automatic / Customizable |
| Mending Veneer Thickness | 0.8 – 3.5 mm (up to 6 mm for select models) |
| Mending Veneer Size | 40×60 mm / 60×100 mm / 90×150 mm / Customizable |
| Patch Shape | Butterfly / Oval / Boat / Rectangular |
| Patching Speed | 2 – 5 seconds per cycle |
| Motor Power | 4.25 – 6.05 kW |
| Compressed Air | 4 – 6 kg/cm² |
| Rated Oil Pressure | 16 MPa |
| Power Supply | 220V / 380V / 415V (customizable) |
| Dimensions (L×W×H) | 1900×1500×1750 mm to 2900×1450×1900 mm |
| Weight | 1200 – 3500 kg |
⚙️ How It Works
The veneer patching machine operates through a simple yet highly effective process:
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Patch Insertion – Simultaneously, a high-quality solid wood patch is cut and inserted into the hole. The patch fits with a tight tolerance, ensuring a seamless repair.
🌟 Key Features & Advantages
🔧 1. Integrated Punching and Patching in One Process
Unlike traditional methods that require two separate machines, the veneer patching machine integrates defect punching and patch cutting in one unit, significantly reducing equipment investment and maintenance.
💧 2. High-Precision Hydraulic/Pneumatic System
Utilizes a robust hydraulic press system or pneumatic cylinders to seamlessly mend defects, ensuring consistent adhesion and durability. Mending accuracy up to ±0.05 mm on select models.
🦋 3. Butterfly Patch Technology – Superior Retention
The butterfly-type patch offers exceptional retention without gluing, bears double the load compared to other patch types, and saves up to 25% in patching material.
⚡ 4. Fast Patching Speed – Dramatically Boost Productivity
2–5 seconds per patch, 6–10× faster than manual. High-end automated lines achieve up to 3200 patches per hour per level.
🌲 5. Wide Material Compatibility
Processes veneer thicknesses from 0.8–6 mm across a broad range of wood species, from softwoods to hardwoods. Supports both short-grain and long-grain veneer.
🔩 6. Customizable Mold Sizes and Patch Shapes
Interchangeable molds available in butterfly, oval, rectangular, and boat shapes to adapt to different defect types and plywood manufacturing requirements.
🛡️ 7. Durable Components – Low Maintenance
High-quality steel molds ensure long service life. Mold lifespan exceeds 6 months for 4mm veneer and up to 1.5 years for thinner sheets.
🔴 8. Laser Guidance System for Pinpoint Accuracy
Equipped with a red crosshair laser module for precise defect alignment, ensuring accurate patching even on irregular veneer surfaces.
🏭 Applications
💡 Why Choose Our Veneer Patching Machine?
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🏷️Factory-Direct Pricing – Competitive pricing with no middlemen.
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🔀 Optional Configurations
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🤖Fully Automatic Model – Designed for medium to large-scale manufacturers needing high-speed operation with minimal manual intervention.
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🏭Complete Patching Line – Includes multiple patching levels, bypass conveyor, vision inspection, and automatic stacking for turnkey solutions.
🔩 Spare Parts & After-Sales Support
We maintain a large inventory of genuine spare parts, including molds, dies, cylinders, seals, bearings, and hydraulic components. Our after-sales service includes:
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