The LM-B / LM-C Series has been developed for manufacturers requiring precise laser welding of moulds, tooling and high-value engineering components. Both systems feature SISMA’s proven Nd:YAG laser technology, Smart Spot pulse control, heavy-duty motorised worktables and intuitive software, delivering stable welding performance with minimal thermal distortion.
The range includes two distinct models to suit different production environments.
The LM-B is a semi-automatic laser welding system, giving operators complete control while benefiting from motorised X, Y and Z axes for accurate positioning. It is ideal for mould repair, maintenance work and precision component welding where operator flexibility is essential. Vision models include SISMA’s patented Syncro View technology for continuous viewing during laser firing.
The LM-C is the fully automatic CNC version, designed for repetitive, high-precision welding tasks. Programmable welding paths improve productivity and repeatability, making it ideal for production environments requiring consistent results across large batches or complex weld geometries. It offers the same Smart Spot technology and optional Syncro View system while adding complete CNC automation.
| LM-B | LM-C |
|---|---|
| Semi-automatic operation | Fully automatic CNC operation |
| Ideal for mould repair and manual laser welding | Ideal for repetitive production welding and automated manufacturing |
| Greater operator control and flexibility | Higher productivity, consistency and repeatability |
| Motorised X, Y & Z axes for precise positioning | Fully programmable CNC welding paths for automated processing |
| Optional Vision system with Syncro View technology | Optional Vision system with Syncro View technology |
| Technical Data | LM-B / LM-C 180 | LM-B / LM-C 210 |
|---|---|---|
| Laser Source | Nd:YAG (Flash Lamp) | Nd:YAG (Flash Lamp) |
| Wavelength | 1064 nm | 1064 nm |
| Average Laser Power | 80 W | 85 W |
| Peak Power | 9 kW | 10.5 kW |
| Maximum Pulse Energy | 180 J (at 25 ms) | 210 J (at 25 ms) |
| Pulse Duration | 0.3–25 ms | 0.3–25 ms |
| Pulse Frequency | 0–50 Hz | 0–50 Hz |
| Laser Spot Diameter | 0.2–2 mm (0.1 mm optional) | 0.2–2 mm (0.1 mm optional) |
| Power Supply | 230 V, 50/60 Hz, 1 Phase | 230 V, 50/60 Hz, 1 Phase |
| Maximum Workpiece Size | 300 × 300 × 270 mm | 300 × 300 × 270 mm |
| Maximum Workpiece Weight | 25 kg | 25 kg |
| X-Axis Travel | 150 mm | 150 mm |
| Y-Axis Travel | 150 mm | 150 mm |
| Z-Axis Travel | 175 mm | 175 mm |
| Machine Dimensions (W × D × H) | LM-B: 698 × 801 × 1465 mm LM-C: 1136 × 801 × 1465 mm |
LM-B: 698 × 801 × 1465 mm LM-C: 1136 × 801 × 1465 mm |
| Machine Weight | 200 kg | 200 kg |
The SISMA LM-B / LM-C Series is designed for precision laser welding, mould repair and component restoration across a wide range of industrial sectors. Both systems deliver highly accurate welds with minimal heat input, helping extend the life of expensive tooling while reducing post-processing and distortion.
Typical applications include injection mould repair, die maintenance, precision engineering, tooling refurbishment, aerospace components, automotive tooling, medical devices and high-value industrial component repair. The LM-B excels in flexible repair work, while the LM-C is suited to automated production and repetitive welding operations.
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