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What is rolling processing?
The special strength of cold rolling is that it allows for precise
rolling without oxidizing the metal surface!
We pass the metal foil through the cold-rolling mill again and again,
slightly reducing the space between the rollers each time.
To a thickness of only 0.001mm［1 micron］
（For reference, commercially-available aluminium foil has a thickness of 12 microns.）
2-Hi rolling mill
While the structure is simple, the roller section
is extremely delicate
（Processing size：Width of 100mm）
Roller section
This luster underpins
RIKAZAI technology
20-Hi rolling mill
Used to manufacture coiled metal foil
The metal foil passes through the complex
arrangement of rollers in an instant
（Processing size：Width of 60mm）
Roller section
A team of two works
in harmonious coordination
From Inserter to Receiver, again and again
This work requires intense concentration
The rollers are polished
after every few inserts
Making subtle adjustments to the roller spacing
Peeling off the ultra-thin foil takes special skill
『Feeling the thickness of the delicate foil』
Rolled foil by RIKAZAI is high in quality,
pleasing to the eye and performs a variety of functions
Batteries
Thinly-rolled materials with excellent
electrical conductivity enable rechargeable
batteries to be more compact
Solders
Supports and holds elements
when adhering micro-devices
Spacers
Useful in gap and height adjustment
in precision instruments
Flat springs
As precision instruments become
ever smaller, their operating parts need
to be thinner and more accurate
Acoustics
Thin, lightweight diaphragms are
important parts of audio equipment
Reference plates
High-precision thin foil is used as
a standard in measuring instruments
Strain gauges
Thin foil reacts to the smallest movement.
Useful as a mechanical sensor
Heating elements
Thin foil with high electrical resistance
is used in electric heaters
Flow sheet
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