The Bochu BLT4 Series intelligent cutting head is designed for stable and efficient fiber laser cutting. The BLT421S, BLT442, BLT462 and BLT482 models provide scalable options for laser systems up to 30kW, with collision protection, fast focusing, water cooling, bevel cutting support and protective window monitoring.

Overview
The Bochu BLT4 Series is an intelligent cutting head series designed for fiber laser cutting systems that require stable processing, fast focusing, water cooling and integrated protection features. The series is suitable for industrial laser cutting applications where cutting reliability, process stability and head protection are important for efficient production.
The BLT421S, BLT442, BLT462 and BLT482 models cover laser power ranges from ≤8kW to ≤30kW, giving users a scalable cutting head platform for different machine configurations and production requirements. Depending on the selected model, the BLT4 Series supports QBH, EOC, Q+, QD and ADD fiber interfaces, with focal distance options from 150mm to 300mm.
The BLT4 Series intelligent cutting head is suitable for fiber laser cutting applications where process stability, head protection and flexible focusing are required. It can be used in sheet metal processing, industrial fabrication, machinery manufacturing, metal structures and production environments using medium- to high-power laser cutting systems.
With bevel cutting capability supported through AB swing axis configurations, the BLT4 Series is also suitable for applications requiring V, Y, X and other bevel forms, helping reduce secondary beveling processes, lower costs and improve production efficiency.
The Bochu BLT4 Series is a strong choice for machine builders and industrial users who need an intelligent cutting head platform with practical protection, cooling and monitoring features. Its collision protection, water cooling and protective window monitoring help protect the cutting head and support more stable laser cutting performance.
For users working across different power levels, the BLT421S, BLT442, BLT462 and BLT482 provide a clear upgrade path from ≤8kW to ≤30kW while remaining within the same BLT4 Series product family.
| Specification | BLT421S | BLT442 | BLT462 | BLT482 |
|---|---|---|---|---|
| Product series | BLT4 Series | BLT4 Series | BLT4 Series | BLT4 Series |
| Product type | Intelligent cutting head | Intelligent cutting head | Intelligent cutting head | Intelligent cutting head |
| Power range | ≤8kW | ≤15kW | ≤20kW | ≤30kW |
| Fiber interface | QBH / EOC | Q+ / QD / QBH / ADD | Q+ / QD / QBH / ADD | Q+ / QD / QBH / ADD |
| Focal distance | 150 / 200mm | 200mm | 200mm | 200 / 300mm |
| Laser wavelength | 1060–1090nm | 1060–1090nm | 1060–1090nm | 1060–1090nm |
| Collision protection | Yes | Yes | Yes | Yes |
| Fast focusing | Yes | Yes | Yes | Yes |
| Water cooling | Yes | Yes | Yes | Yes |
| Protective window monitoring | Yes | Yes | Yes | Yes |
BLT4 Series
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