SERVICES
Our Services
SERVICES
Kuroiwa's Craftsmanship and Commitment
We never skip the final finishing touch.
We always keep the end user in mind and strive to make every die even better.
Sixty years of refining every detail have built the technology and know-how that make Kuroiwa shine.
Flexible Packaging
I-Notch
A straight profile formed with a 2 mm blade.
Our proprietary techniques secure short blades vertically in the plywood base,
which keeps them perfectly upright,
reducing deflection during processing.
V-Notch
Formed by joining blades at acute angles.
To finish without gaps, the blade base is
hand-carved by skilled craftsmen.
It produces a sharp tear edge that opens easily,
but the joints can open at the tips, so durability is lower.
Broaching
Adds a radius to the tip of a V-notch profile.
By carving the base beneath the curved blade edge,
we can achieve smaller radii than usual.
With no joints, durability is high,
but the rounded tip makes tearing harder than a V-notch.
Joint Machining
Essential machining applied to the blade when processing sheets.
We machine precise joints on the cutting rules.
We support depths from 0.9 mm and widths from 0.15 mm,
enabling fine adjustments.
Trays
Rubber + SUS
Laminates rubber and stainless steel together
for use on the pressure side of integrated blades.
The rubber cushions and absorbs cutting pressure,
improving blade durability and shortening leveling time.
Floating
Designed for multi-up styrene forming.
Blades move with sheet expansion and contraction, automatically adjusting the punching position.
Angled Sponge Cut
Cutting the sponge into a trapezoid
helps it hold the sheet evenly when pressed,
maintaining stable positioning.
It prevents the sponge from covering the blade and helps avoid contamination.
Guide
Machined to match the product shape,
used to position and secure the sheet.
Turnbuckle
For multi-up styrene molding sheets,
the bolt-tightening mechanism
lets operators manually adjust the punching position,
allowing blade length to be tuned by up to 1.5 mm per location.
Paperboard / Cardboard
Stripping Die
Removes unwanted waste during the stripping process.
Blanking Die
Leaves scrap inside the machine while ejecting only the finished product.
Broaching
Minimizes the bending radius of the blade
to prevent chipping at the joint.
King Pin
A jig used to set the CAD plate.
Delivered embedded in the die, so pulling the pin makes it easy to transfer the CAD plate
onto the stainless backup plate in one step.
Offers a relatively low initial cost.
CAD Plate
Based on CAD data for Thomson dies, we create plate data and machine resin components with grooves along the crease lines.
Using jigs embedded in the wood die enables single-surface lamination without misalignment.
Compared with using creasing tape, setup time is reduced and fine crease patterns are supported.
Other Processing Equipment
Plywood Laser
Laser cutting machine: Shibuya Kogyo SPL (2312D)
Laser cutting machine: Shibuya Kogyo SPL (SSL1000)
Max work size: 2100 × 1320
Primarily processes 9T to 20T plywood.
Also handles acrylic, resin, and other materials.
Metal Plate Laser
Laser cutting machine: Mitsubishi ML2512HVII-20CF3
Max work size: 2440 × 1220
Primarily processes SUS from 1T to 6T.
For carbon steel, we have results up to 16T.
Water Jet
Water jet cutting machine: Flow Japan MACH300
Max work size: 2000 × 1500
Processes Sanperca up to 60T.
Processes SUS up to 30T.
Machining
Gantry milling machine: Yamazaki Giken YZ1321
Max work size: 2000 × 1120
Aluminum machining up to 50T.
General-Purpose Automatic NC Router
Heian Corporation NC-131MC
Max work size: 1300 × 1300
Primarily processes PP 3T and 5T, and can also machine MC nylon
POM, and other materials.
Chemical wood machining up to 75T.
Other
Nick Tool
Used with flatbed dies / proven on bag-making lines
A pistol-style nick tool designed for Thomson blades.
Hold it vertically and pull the trigger to cut at a consistent width and depth using spring force.
Lightweight and easy for any operator to handle.
Available with tip sizes from 0.2 mm to 0.3 mm.
Patent pending.
Equipment List
| Machine | Manufacturer | Model | Units |
|---|---|---|---|
| Laser cutting machine | Shibuya Kogyo | SPL2321D | 1 |
| Laser cutting machine | Mitsubishi | ML2512HVII-20CF3 | 1 |
| Laser cutting machine | Shibuya Kogyo | SPL (SSL1000) | 1 |
| Water jet cutting machine | Flow Japan | MACH300 | 1 |
| Gantry milling machine | Yamazaki Giken | YZ1321 | 1 |
| YAG laser | Miyachi Technos | ML-2450A | 1 |
| General-purpose automatic NC router | Heian Corporation | NC-131MC | 1 |
| Automatic rule bending machine | SUNTEX | - | 6 |
| Automatic high rule bending machine | SUNTEX | - | 2 |
| Sample cutting machine | NSK | Kongsberg XL20 | 1 |
| Sample cutting machine | ACS | AS1212FW | 1 |
| Automatic counter plate machine | NSK | CREAS LINE 8ATC | 1 |
| Hydraulic press | Toko | SHDC 1300×1200-100T | 1 |
| Hydraulic clicker press | Toko | TCM-550A | 1 |
| Slicer | Nippi Machinery | MP-B650 | 1 |
| Handheld 3D measurement system | Keyence | XM-5000 | 1 |
| Microscope | Keyence | VHX-6000 | 1 |
CONTACT US
Head Office
TEL: +8179-266-3628
FAX: 079-266-6810
3-28-33 Aoyamakita Himeji Hyogo JPN
Yumesaki Branch
TEL: +8179-280-3701
FAX: 079-280-3702
1082 Kochinosho Yumesakicho Himeji Hyogo JPN
