Laser engraving machine LW3 series

for metalfor plastics

Overview
The LW3 is Gravotech’s large-format Class 1 laser enclosure designed for large direct part marking. It provides secure, user-friendly operation and versatile marking modes, supporting Fiber, MOPA, Hybrid (DPSS) and Green laser technologies to mark metals and plastics with high precision.

Key features

• Large marking possibilities: 3-sided automatic door and roomy internal height for parts up to 628 mm; compatible with a range of industrial laser sources.
• Versatile marking modes: single-item identification, multi-position/multi-level engraving, batch/matrix marking. Optional 3D module for sloped surfaces.
• Industry-oriented ergonomics: integrated 7-inch touchscreen for job selection and control, silent automatic door operation, heavy-duty construction, optional ZX bridge for extended travel.
• Positioning and fixturing: large metal table with rails and grooves for accurate part/fixture placement; trolley option for mobility.

Applications

• Direct part marking and traceability
• Identification and serialization on large parts
• Multi-level engraving and matrix (2D) marking
• Personalization and high-volume industrial marking

Technical highlights (table)
Laser sources: Fiber / MOPA / Hybrid (DPSS 1064 nm) / Green (DPSS 532 nm)
Typical marking area (lenses): F100 65 x 65 mm; F160 110 x 110 mm; F254 175 x 175 mm; F330 205 x 205 mm; F420 300 x 300 mm
Extended marking (ZX bridge): up to 875 x 300 mm
Max object size (enclosure): approx. 810 x 720 x 628 mm
Z stroke (standard): 295 mm — Z stroke (ZX configuration): 575 mm
Max object weight: 50 kg (approx.)
Marking speed: up to 4000 mm/s (depending on source and settings)
Protection: Class 1 (door closed) / Class 2M when door open (aiming diode)
Integrated control: 7" color touchscreen for job management and machine control

Technical specifications

• Laser compatibility: Fiber (1064 nm), MOPA (1064 nm), Hybrid (DPSS 1064 nm), Green (DPSS 532 nm)
• Available average powers: Fiber examples 20 W / 30 W / 50 W; MOPA examples 30 W / 60 W; DPSS examples 5 W–20 W (depending on configuration)
• Peak power (typical): up to kW-class peak depending on source and pulse mode
• Frequency ranges (typical): fiber/MOPA: kHz ranges (model-dependent); MOPA extended frequency options for contrast control
• Marking area by lens: F100 (65 x 65 mm), F160 (110 x 110 mm), F254 (175 x 175 mm), F330 (205 x 205 mm), F420 (300 x 300 mm); ZX configuration extends travel to mark up to 875 x 300 mm
• Z axis: motorized and programmable (standard stroke 295 mm; ZX configuration: extended stroke 575 mm)
• X axis (ZX config): motorized and programmable (stroke up to 575 mm)
• Max object envelope: ~810 x 720 x 628 mm (L x W x H) depending on focal length
• Max object weight on table: ~50 kg
• Machine dimensions (L x W x H): Standalone 1213 x 1023 x 1120 mm; With trolley 1213 x 1023 x 2120 mm
• Machine weight (without laser): With Z-axis ~160 kg; With ZX bridge ~200 kg
• Power consumption (typical): ~800 W
• Rated voltage: 100–240 V AC
• Operating temperature: nominal range ~10–40 °C (source/config dependent)
• Relative humidity: 10–85% (non-condensing)
• Communication interfaces (standard): Ethernet TCP/IP; Terminal block I/O (8 in / 8 out); dedicated laser safety I/O; RS232; USB
• Software compatibility: Lasertrace and Gravostyle™ (depending on configuration and customer setup)
• Door: 3-sided, automatic closing/opening for secure class 1 operation
• Options & accessories: trolley for mobility, ZX bridge for extended marking area, 3D marking module, Class 4 override accessory for special configurations (enables marking with door open under controlled conditions)