Desktop manual laser welding

SISMA LM-D

LM-D 230 and LM-D 260 Nd:YAG laser welders, also in FLEX version

SISMA LM-D is a desktop manual laser welding system for high-precision metal processing and precious metals, with a 10-inch touchscreen, an optional Nano Spot and a FLEX version for jewelry and industrial work.

Manufactured bySISMA
SISMA logo
SISMA LM-D desktop laser welder with touchscreen, microscope and front opening to the chamber
SISMA LM-D from SISMA.
230 / 260 JMax pulse energy, LM-D 230 / 260
85 / 95 WAverage power, LM-D 230 / 260
Nd:YAG1064 nm laser source
0.05 mmSpot size with optional Nano Spot
10 inchHMI touchscreen
Overview

Manual laser welding at the bench

The SISMA LM-D series is a desktop manual laser welding system for high-precision processing of metals. It was developed from customer feedback, with attention to performance and ergonomics, and it is suitable for working precious metals.

Two models are available, LM-D 230 and LM-D 260, both with a Nd:YAG laser at 1064 nm, pulse durations from 0.55 to 25 ms and a pulse repetition rate up to 50 Hz. The LM-D 230 delivers 230 J maximum pulse energy and 9 kW peak power; the LM-D 260 reaches 260 J and 10.5 kW.

The 10-inch touchscreen HMI shows only what the operator needs. The optional Nano Spot reduces the spot size to 0.05 mm for micro-welding, and Velvet Spot on the LM-D 230 gives stable, constant pulses across the full power range from the first shot.

The machine has a small footprint with wide access to the working chamber, and it is also available in a FLEX version with fringes.

Models

Standard and FLEX versions

SISMA LM-D desktop laser welder with touchscreen, microscope and front opening to the chamber

LM-D

Desktop version with a front opening to the working chamber and the 10-inch touchscreen HMI.

SISMA LM-D FLEX desktop laser welder with black fringes across the front of the working chamber

LM-D FLEX

FLEX version with fringes across the front of the working chamber, available on both the LM-D 230 and LM-D 260.

Applications

Jewelry and industrial welding

The official samples cover precious-metal jewelry and fine industrial parts.

Open working chamber of the LM-D laser welder with fringes and internal fixtures

Open working chamber of the LM-D laser welder with fringes and internal fixtures

Close-up of the LM-D 230 housing showing the Nano Spot label

Close-up of the LM-D 230 housing showing the Nano Spot label

Grey machine housing panel with the Velvet Spot logo

Grey machine housing panel with the Velvet Spot logo

Gold earrings with diamond-cut hoops and faceted clear and dark stones

Gold earrings with diamond-cut hoops and faceted clear and dark stones

Laser weld spot on the coil of a small steel spring

Laser weld spot on the coil of a small steel spring

Close-up of a long laser weld seam on a dark metal part

Close-up of a long laser weld seam on a dark metal part

Gold cuff bracelet with textured ribbed bands, a laser welding sample piece

Bracelets

Welding precious-metal bracelets and bangles.

Gold flower pendant with layered rose and yellow gold petals on a chain

Earrings and pendants

Welding earrings, pendants and their settings.

Rose gold ring with wire spirals and coloured gemstones at the centre

Rings

Welding rings with fine wire and stone settings.

Thin steel wire part with a 0.2 mm measurement mark next to a fine laser weld

Micro-welding

Welding very fine parts with the optional 0.05 mm Nano Spot.

Close-up of a circular laser weld joining a steel pin to its base

Industrial parts

High-precision welds on small industrial metal parts.

Precious metalsBraceletsEarringsPendantsRingsIndustrial partsMicro-welding
Features

Machine features

  • Nd:YAG laser source at 1064 nm, laser class 4
  • 10-inch touchscreen HMI that shows only what the operator needs
  • Optional Nano Spot for a 0.05 mm spot size
  • Velvet Spot on the LM-D 230 for constant pulses across the full power range
  • Focal spot diameter from 0.2 to 2 mm
  • FLEX version with fringes and T version available
  • Accessories include an inner chamber camera, multifunction pedal, arm and forehead rests and a height-adjustable stand
Benefits

What it brings to the workshop

Usable by operators who are not laser specialists
Small footprint with wide access to the working chamber
Ergonomics and accessories designed for operator comfort
Suitable for working precious metals

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