10+ Material and surface system concepts
100% Production based on controlled processes
Designed for Serial Coinage Production: processes designed for serial production with fully controllable parameters
Batch-to-Batch Repeatability
We work with materials commonly used in circulating coinage, including:
Nordic Gold, CuNi, aluminium bronze and other alloys
for specific circulation requirements
(core and ring for bi-color coins), tailored to coin design and mint specifications
For reliable striking performance, a coin blank must have the correct internal structure, a clean surface, and stable mechanical properties. Our production is therefore based on precisely controlled and repeatable processes, from material preparation to final surface finishing.
To achieve target hardness, relieve internal stresses, and ensure stability during striking
To form a uniform raised edge prior to striking
For a clean, uniform and residue-free surface
Available as single- or multi-layer systems, including mono- and bi-color options
We maintain a consistent surface structure across all blanks by precisely controlling forming, finishing, and brightening processes. Micro-roughness is optimised to support reliable metal flow during striking, reduce die stress, and ensure a uniform visual appearance of the finished coin.
All blanks undergo multi-stage cleaning and degreasing processes to eliminate residual lubricants, oxides, and contaminants. This ensures optimal die contact during striking, prevents surface defects, and supports long die life and low rejection rates.
Colour stability is achieved through controlled material selection, surface treatment, and plating parameters. Strict process discipline ensures that visual appearance, tone, and reflectivity remain consistent across production batches — a key requirement for circulating coinage.
Our production is designed for high-volume serial manufacturing with full control over critical parameters, including hardness, thickness, diameter, and weight. Continuous monitoring and process stability ensure that each blank meets specification and behaves predictably throughout the striking process.
Every circulating coin program has different constraints – technical, economic, and logistical. BLANKER provides flexibility without compromising process discipline.
If you are planning a new circulating coin program or looking to stabilise an existing one, we’re ready to discuss materials, surface systems, tolerances, and production volumes.
Fill out the form below and we’ll be in touch.
