Traditional Precision: Rotary & Diamond Drag Engraving
Our Diamond Engraving Equipment
We operate two precision rotary diamond engraving machines in our workshop: a uMarq CX5 and a Suregrave Rotation S. Both machines are CNC-controlled via dedicated computer software and use diamond-tipped engraving tools to physically cut into the surface of the material, creating a permanent, tactile engraving.
While both machines are capable of accepting tungsten carbide engraving tips, this option is used only occasionally, as diamond tooling provides the cleanest and most consistent results across the majority of materials we engrave.
How Diamond Engraving Works
Diamond engraving uses vector artwork or coordinate-based engraving data to guide the cutting path. The diamond tip is dragged across the surface of the item, engraving line by line, lifting and repositioning between points for accuracy.
Each machine is equipped with a high-speed spindle motor capable of operating at speeds of up to 15,000 RPM. This allows the engraving tool to effectively cut or burnish particularly tough materials, producing crisp lettering and durable marks that stand the test of time.
Rotary Engraving for Cylindrical Objects
Both machines feature built-in rotary attachments, enabling the engraving of cylindrical and curved items. During the engraving process, the item rotates in precise synchronisation with the cutting tool, allowing consistent, evenly spaced engraving around the circumference of the object.
Finish and Engraving Style
Rotary diamond engraving produces a more traditional, slightly rugged finish compared to the smooth appearance of laser engraving. This makes it ideal for classic designs, formal awards, and heritage-style pieces where a conventional engraved look is desired or required.
Machine Capabilities and Differences
The primary difference between our two diamond engraving machines is their working area and rotary capacity:
The uMarq CX5, which served as our main production engraver prior to the addition of our fibre laser, is ideal for larger flat engravings and rotary engraving on items up to approximately 100mm in diameter.
The Suregrave Rotation S is designed for larger and more complex items, including trophies and presentation pieces, and features an expanded rotary engraving capacity of up to 250mm in diameter.
Products We Commonly Diamond Engrave
We regularly use rotary diamond engraving for:
- Selected lighters that are not suitable for laser engraving
- Pewterware, including tankards and hip flasks
- Traditional trophies and awards
- Larger plaques and presentation pieces