Laser Marking Solutions for Automotive

Two heads mark matched pairs or two zones of one large part at the same time.

Why Automotive Lines Depend on Fast, Readable Part Marks

In automotive production every part carries its own record. Gears, housings, crankshafts, brake parts, EV battery modules and trim panels are marked with a serial number, batch code or Data Matrix code that is scanned again at assembly, at inspection and in service. If a mark is missing or unreadable, the part loses its history.

The mark also has to keep pace with the line. A marking station that holds up the conveyor costs output on every shift, and labels or inkjet codes that smudge add rework. Laser marking writes a permanent, high-contrast mark in seconds, straight from the production database, and fits into the cycle instead of interrupting it.

Laser Marking Matched to How Parts Move

Laser marking uses a fibre laser and a galvanometer scanner to change the surface of the part, darkening, lightening or lightly removing material so text, logos and 2D codes stand out clearly. Nothing touches the part and there are no inks, solvents or labels to replace.

The laser source is often the same from station to station. What changes is how the part arrives: placed in a cabinet by hand, carried past on a conveyor, presented in matched pairs or too large to move at all. LASIT builds a machine for each of these cases around the same fibre source and FlyCAD software.

Why Part Flow Decides the Machine

Choosing a marking system starts with the line, not the laser power. Three questions settle most automotive applications:

• Does the part stop? Parts that stop at a station suit a cabinet machine; parts that keep moving on a conveyor need on-the-fly marking that follows them.
• Are parts made in pairs? Left and right parts, gear sets or matched halves can be marked side by side with two heads working at the same time.
• Can the part be moved? Chassis members, body structures and large housings are marked by bringing the laser head to the part on a robot.

Built for Automotive Production Lines

The LASIT range shares one control platform, so bench, conveyor and robot stations all run the same software.

Marking without stopping the conveyor

On the on-the-fly machine, a rotary encoder measures belt speed and FlyCAD shifts the scanner path to follow each part, while a sensor signals when a part enters the marking field. VINs, lot codes and inspection stamps are applied without slowing the line.

Two heads, twice the output

The dual-head machine runs two laser heads at once: identical marks on two parts, different zones of one large part, or a different design on each part.

Robot-guided marking in 3D

The robotic workstation carries the marking head on a 6-axis robot, presenting the beam square to the surface at each position. A vision system recognises the part, measures its position and verifies the mark, inside a guarded cell with light curtains and interlocks.

Codes straight from the plant system

FlyCAD handles serial numbers, barcodes, Data Matrix codes and logos, connects to MES and ERP systems and controls up to 9 axes. PROFIBUS, PROFINET and RS232 interfaces link the marker to PLCs and robots on the line.

Setting Up a Complete Automotive Marking Line

Most plants start with the Fiber Laser Marking Machine, a 20 W, 30 W or 50 W fibre marker with a 750 × 500 mm working area for parts loaded at a station. Where parts travel on a conveyor, the On-the-Fly Laser Marking Machine marks them in motion, synchronised to belt speed. For matched pairs or large parts with several mark zones, the Dual-Head Laser Marking Machine marks with two heads at once. VINs on chassis and body structures, and serials on engines, transmissions and brakes in awkward positions, are handled by the Robotic Laser Marking Workstation, with vision-guided positioning and mark verification.

Who Uses It

• Automotive OEM powertrain, chassis and assembly plants
• Tier-1 and tier-2 automotive component suppliers
• EV battery module and power electronics manufacturers
• Gear, shaft, brake and steering component makers
• Interior trim and plastic part manufacturers

Supply and Support in India

United Spectrum Instruments (USI), Chennai, is the authorised distributor of LASIT Laser (Italy) in India and supplies laser marking machines for automotive plants and component suppliers, from single bench stations to conveyor and robot cells. USI can also supply Donaldson BOFA fume extractors for each marking station.

USI helps choose the machine, laser power and part handling for your line, supports integration with PLCs and plant systems, and provides installation and after-sales support.

Request a Configuration

Download the brochure from this page, use the Enquire Now button, write to sales@unitedspectrum.in, or call +91 93631 83748 / +91 97899 04948. Please mention:

• The parts to be marked, their material and size, and the content of the mark (serial, Data Matrix, VIN or logo)
• How parts reach the marker: by hand, on a conveyor, in pairs or by robot
• Cycle time or line speed, and daily volume
• Whether marks must link to an MES or ERP system, and whether fume extraction is also needed