UV Laser Wire Marking Machines

The machine includes a programmable rotary axis. Also called a roll marker or indexing rotary table. It precisely rotates the cable under the stationary UV laser beam. No need to wrap text or graphics – that would distort on a cylinder. The rotary chuck clamps onto the cable. Controlled synchronously with the laser marking. For wires smaller than 3 mm in diameter? A 3‑jaw self‑centering chuck grips the conductor or insulation. For larger cables, optional collet set or V‑block support ensures stable rotation.

Rotary axis torque is adjustable. Prevents damage to thin insulation. Provides enough grip for heavy cables. Maximum rotation speed: 60 rpm. Synchronized with marking speed up to 7000 mm/s. Clear, distortion‑free circumferential marking in a single pass. Repeat positioning accuracy of the rotary axis? ±0.05 degrees. Marks align correctly even when the cable is remounted after a splice or test. WLUV‑10WSL gets it right.

Wire harness production. Marking multiple wires at the same position – for example, all wires of a specific length. Consistency and speed are critical. The machine comes with an accessory multi‑wire fixture. Holds up to 12 individual wires side by side. Each wire diameter up to 8 mm. The fixture is height‑adjustable. Spring‑loaded clamps secure each wire without deforming the insulation.

Preprogram a marking pattern. Repeats on each wire in sequence. Or the rotary indexer can rotate entire bundles. For prototyping or small runs? A manual indexer is supplied. Operator rotates a single cable by hand while the laser fires intermittently. For production, an electric rotary axis integrates with the machine's I/O ports to automate the process. The software includes a "circular marking" module. Automatically calculates the required rotation angle for text or graphics. The end of the mark meets the beginning seamlessly. WLUV‑10WSL speeds up harness production.

Standard F‑theta lens? Limited depth of field (DoF) – usually 1‑2 mm. Inadequate for cables where surface height varies by several millimeters across the marking field. Example: a round 20 mm cable has a 20 mm drop from center top to edge. The WLUV‑10WSL is equipped with a telecentric long‑depth lens. Optional on standard models, but standard on this wire‑marking configuration. Maintains a focused spot size of approximately 30‑40 µm across a depth of field of ±8 mm. Covers a marking area of 110 × 110 mm.

With this lens, the UV laser beam stays in focus even on the curved surface of a large cable. Software optionally supports "wrap‑around" marking. Laser power adjusts automatically as the beam moves to the edges of the cable. Compensates for increased path length and reduced intensity. Result? Uniform mark darkness and depth across the entire printed area. WLUV‑10WSL handles thick cables like a champ.

Infrared or CO₂ lasers? They heat wire insulation to melting or charring temperatures. Not this one. The 10‑watt, 355 nm UV laser operates through cold photochemical ablation. UV photons break molecular bonds in the marking compound or directly in the insulation surface. No significant heat transfer. Critical for wires that must meet electrical safety standards – UL 62/758, VDE. Insulation damage is not allowed. Heat‑affected zone? Less than 10 µm. Even thin‑walled Teflon (PTFE) or polyimide (Kapton) insulation remains intact.

The machine can mark directly onto bare copper or aluminum conductors (for identification before insulation). Onto the surface of insulated wires (using a UV‑specific additive or by surface modification). Onto heat shrink tubing and cable tags. For dark insulation? Apply a light‑colored pre‑marking compound – the UV laser highlights it. For light insulation? The laser creates a dark, high‑contrast mark. WLUV‑10WSL preserves the wire.