Built for fine welding tasks, the LM Series combines compact design with user‑friendly interfaces, allowing operators to store up to 250 welding parameters and achieve microspot sizes down to 0.15–2 mm. Ergonomic features and optional shielding gas support enhance quality and reliability.

Sisma Laser Welding LM Series

SISMA’s LM machines deliver precision welding on metals such as gold, silver, and stainless steel, using Nd:YAG laser pulses with adjustable duration and frequency for controlled heat input. With ergonomic touch displays and optional USB/Ethernet connectivity, they are ideal for jewellery, sensor, and medical parts fabrication.

Features

Parameter Storage

The machine can store up to 250 working parameters, which can be easily adjusted via a graphic display

Eye Protection

It is equipped with a high-quality stereoscopic microscope that protects the user's eyes from UV rays and laser radiation.

Ergonomic Design

It has a sleek and ergonomic design that minimizes operator fatigue.

High Productive Efficiency

The machine requires reduced maintenance and has a long-lasting lamp, which directly increases productive efficiency.

Double Lighting

It comes with a dual lighting system (neon + diode) for better visibility during work.

Overview

Model	LM500	LM700P
Laser source type	Nd:YAG	Nd:YAG
Average power	70 W	90 W
Power	1.5 KW	2 KW
Peak pulse power	7.5 KW	10.5 KW
Pulse energy	100 J	100 J
Pulse duration	0.3 – 25 ms	0.3 – 25 ms
Pulse frequency	0 – 50 Hz	0 – 50 Hz
Welding spot diameter	0.2 – 2 mm	0.2 – 2 mm
Display	Color touch screen	Color touch screen
Illumination system	LED	LED
Weight and dimension	155 kg, 520x840x1380 mm	155 kg, 520x840x1380 mm