Laser Engraving
April 2026 · 6 min read
Laser engraving has moved from a specialist capability to standard practice in NZ manufacturing. Tighter compliance requirements, better technology, and the permanent nature of laser marks are driving that shift. Here is why it matters.
Labels peel. Paint stencils get overcoated. Ink fades. For switchboards and industrial equipment expected to operate for 20 to 40 years in demanding environments, these marking methods are not fit for purpose. Clive Wilson Precision Laser Engraving, based in Invercargill, has been producing permanent laser-engraved labels and marking for switchboard manufacturing, engineering, and fabrication clients across New Zealand for many years. Here is why demand for laser engraving is growing.
The fundamental advantage of laser engraving over labels, ink, and mechanical stamping is permanence. A laser mark is not applied to the surface; it is formed by changing the material itself through concentrated heat energy. It cannot peel, wash off, dissolve in cleaning chemicals, or wear away over the service life of the product.
For switchboards and electrical equipment, this permanence is critical. Circuit identification labels, compliance plates, and operator instructions must remain legible for the life of the equipment. A label that has peeled off after 10 years, or been painted over during a maintenance repaint, is a safety and compliance issue. A laser mark is not.
New Zealand electrical safety standards require circuit identification, equipment ratings, and manufacturer information to be permanently and legibly marked on switchboards and electrical assemblies. AS/NZS standards for low-voltage switchgear assemblies include specific marking requirements that labels and paint stenciling can struggle to meet consistently over long service life.
Beyond the electrical sector, compliance requirements for traceability and serialised marking are increasing across manufacturing, food processing, medical device fabrication, and infrastructure. Laser engraving meets the permanence and legibility requirements of these standards without ambiguity.
Laser engraving is a programmed, repeatable process. Once a marking layout is set up in the design file, every part is marked identically with no variation in position, depth, character size, or quality. This consistency matters on production runs where uniformity is required and on safety-critical marking where legibility cannot vary between units.
The precision of laser marking also allows text and graphics to be placed accurately on complex shapes, curved surfaces, and small components where mechanical stamping is impractical and label application is unreliable.
At Clive Wilson Switchboards, laser engraving is used throughout our switchboard manufacturing process:
Compared to engraved plastic labels or adhesive-backed tags, laser-marked metal panels are more durable, more professional in appearance, and require no adhesives that can fail over time.
| Laser Type | Best For | Common Materials |
|---|---|---|
| Fibre laser | Metal marking and engraving | Steel, aluminium, stainless, brass |
| CO2 laser | Non-metal engraving and cutting | Wood, acrylic, glass, leather |
| UV laser | Fine marking, low heat input | Plastics, coated surfaces, PCBs |
Fibre laser technology is standard for the metal marking work done at Clive Wilson. It produces clean, deep marks on stainless steel, aluminium, and powder coated surfaces without thermal damage to the surrounding area.
Laser engraving has no tooling costs and requires no setup beyond programming the design file. This makes it economical for small, custom runs as well as high-volume production. In the switchboard industry, where projects are typically unique and circuit labels vary from job to job, this flexibility is valuable: each job can have its own custom marking without any additional tooling cost or lead time.
Once programmed, the per-unit cost of laser marking is low and the process is fast, adding minimal time to the overall production schedule.
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📍 31–33 Clyde Street, Invercargill · 📞 +64 3-214 4264 · ✉️ admin@clivewilson.co.nz
