Zixu Three-in-One Semi-Enclosed Laptop D-Cover Anode Layer Removal System — 17 Seconds vs 36 Seconds

Chongqing Zixu Machine Works has developed a multi-beam synchronized anode removal system designed specifically for laptop D-cover anodized layer processing. The core design philosophy: reduce moving parts, fix optimized parameters at the factory, and enable one-button operation.
Industry Challenge
Laptop D-covers made of aluminum or magnesium-aluminum alloy serve as an integral part of power delivery and thermal management. In the central area, the anodized layer must be removed for soldering flex cables for the motherboard, cooling module, and other components. On both side areas, ports such as USB, HDMI, and power are densely arranged, requiring anodized layer removal for signal integrity and electrical continuity.
Traditional single-beam laser systems with rotary fixtures process left, center, and right sides sequentially — but face major challenges in electronics contract manufacturing: high worker turnover requiring constant laser training, and rotary fixture motors needing regular maintenance and calibration. Large manufacturers often require on-site engineers from suppliers.
The Zixu Solution: Multi-Beam Synchronized System
The system uses a single screen controlling three independent light paths, each aimed at the bottom inner side and two side walls of the laptop D-cover simultaneously.

Technical Highlights
- One-button operation: Import engineering drawing into EZCAD, press start — completes three-side anode removal in one cycle
- Factory-optimized parameters: Tested for different magnesium-aluminum alloys and anodized layer thicknesses, no on-site tuning required
- Precision fixtures: Repeatability of ±0.05mm or better
- No rotating parts: Eliminates the maintenance burden of rotary fixture motors and bearings
Key Advantages Over Traditional Solutions
| Metric | Traditional (Single Beam + Rotary) | Zixu Multi-Beam Fixed |
|---|---|---|
| Operation complexity | Requires rotation control & beam switching training | One-button start after drawing import |
| Maintenance | Motor/bearing calibration, prone to failure | No rotating parts, 24/7 stable |
| On-site engineer | Often required | Not required |
| Cycle time (16″ Mg-Al) | 36 seconds | 17 seconds — 111% faster |
| Floor space per unit | Baseline | ~30% less |
| Unit price | Lower | Higher |
| TCO (total cost of ownership) | Higher | Absolute advantage |

Actual Result: 16″ Magnesium-Aluminum Laptop D-Cover
Using a 16-inch magnesium-aluminum laptop D-cover produced for a well-known brand:
- Traditional solution (Han’s Laser): Three-side anode removal — 36 seconds
- Zixu solution (multi-beam): Three-side anode removal — only 17 seconds
- Efficiency improvement: Nearly 111%

Additional Benefits
Because no rotary fixture is required, the equipment footprint per unit is reduced by approximately 30%. This is critical for laptop manufacturing subcontractors who typically need dozens or even hundreds of laser marking machines in a single facility. When factory expansion is difficult, maximizing space utilization becomes essential. The compact design also ensures machines can be placed without interfering with other equipment or material handling pathways.

Related Products
- Fiber Laser Marking Machine — Ideal for high-precision anodized layer removal on consumer electronics.
- Laser Marking Machine Series — Full range of industrial laser markers.
- Laser Cleaning Machine — For surface preparation and coating removal.
About Chongqing Zixu Machine Works
Chongqing Zixu Machine Works, through its subsidiary Chongqing Chuke Intelligent Machinery & Equipment Co., Ltd., holds qualifications as a National High-Tech Enterprise and a “Specialized and Sophisticated Little Giant” Enterprise. The company has obtained CE, FDA, RoHS, and ISO9001 certifications. Zixu serves customers in more than 100 countries across industries including automotive and railway, aerospace, electronics manufacturing, energy and chemical, as well as food and medical.
Zixu — Focused on precision laser processing, providing highly reliable, easy-to-maintain, and high-efficiency industry-leading solutions for anodized layer removal on consumer electronic metal structural components.
If your production involves anodized layer removal on electronics housings or similar applications, contact our team for a free sample test and feasibility study.

