COMPANIES DRIVING REGIONAL GROWTH

Tool Steel

The shortest processes, the fastest response, and the best quality. Meeting all these requirements is our special steel Factory Mall.

工具鋼

We offer a one-stop service from the supply of materials to the manufacture and delivery of mold components.

We began selling special steel in 1927. Since then, we have invested aggressively in plants and equipment such as the saw cutting machines made by the founder himself, and heat treatment furnaces. It has allowed us to respond promptly and surely in meeting our customers' needs. This style of identifying market trends and responding rapidly to them has been passed down as a legacy to the present.
A typical example can be seen in the business field handling tool steel. Most of the tool steel handled by us are used in molds for manufacturing automotive parts. We have an abundant stock of cold tool steel, hot tool steel and even steel for plastic molds, enabling us to supply steel materials that exactly meet the needs of our customers.
In addition to processes such as saw cutting, heat treatment, and finishing, the “Factory Mall” offers end-to-end manufacturing of precision-measured mold parts, a revolutionary setup that handles customers' orders in one place. We provide the best quality with the shortest processing.

The Factory Mall, where all processes are integrated in one place.

Material Supply Saw cutting Milling Heat Treatment Finishing Measurement Logistics

Material Supply

We have introduced the original inventory/sales/production management system for storing a wide variety of steel at all times and smoothly linking them to the next cutting process. This enables us to supply steel efficiently.

Material Supply

Saw cutting

For the process of cutting steel to the required size, we have introduced the fully automated saw cutting system. The material handling equipment attached to the system packs the steel to be used and saw cutting machines, capable of operating 24 hours a day, perform the work.

Saw cutting

Milling

Milling is performed to remove the surface scale that causes surface unevenness. A uniform finish stabilizes quality, allowing us to estimate the machining time and achieve planned production.

Milling

Heat Treatment

Our heat treatment center features three quenching furnaces, including a large furnace installed in 2016, and nine tempering furnaces. We make full use of these two types of furnaces to adjust hardness, dimensional change, and distortion to maximize the characteristics of special steel. Which stabilizes the heat-affected layer formed during WEDM processing, thereby reducing the time-based dimensional change to 1/5 to 1/10 of the conventional level.

Heat Treatment

Finishing

The Technology Development Center, where machining is performed, features a temperature/humidity-controlled room with temperature of ±0.5°C and humidity of less than 60%. We make full use of 3-axis and 5-axis machining centers to carry out finishing of more complex shapes.

Finishing

Measurement

The high dimensional precision of molds is a proof of the technical capabilities employed in the preceding processes. The step of measuring proves this in numerical terms. In our accredited ISO17025 laboratory measurement environment, we utilize CMMs and non-contact measuring machine to guarantee absolute dimensions. This further increases the added value of our products.

Measurable Items
Dimensions: 5,000 mm x 4,000 mm x 3,000 mm max.
Weight: 8 tons max.
Products Measured (Including Reverse Engineering)
  • Aircraft body parts
  • Wind power generation gear parts
  • Machine tool parts
  • Large measuring jigs
  • Etc.
Measurement1 Measurement2 Measurement3

Logistics

All molds and other products made by us are delivered to our customers by Yamaichi Logistics, our own designated freight forwarding company. Our delivery system responds accurately, safely, and flexibly.

Logistics

Main Equipment

Machining

Description Manufacturer Model Number Number Operating Range
Vertical
5-axis MC
HERMLE C40U 2 850×700×500 Φ800
Vertical
5-axis MC
YASDA YBMVi40 1 900×500×450 Φ400
Horizontal
5-axis MC
YASDA H40i 2 875×700×500 Φ500 12-Palette
MICRO CENTER
5-axis
YASDA YMC430 RT10 1 420×300×250 12-Palette
MICRO CENTER
3-axis
YASDA YMC430 RT10 1 420×300×250
Vertical
CNC Jig Borer
YASDA YBM1224V 1 1500×2600×1200
Vertical
CNC Jig Borer
YASDA YBM9150V 1 1500×900×450
Vertical
CNC Jig Borer
YASDA YBM950V 2 900×500×350
Vertical
CNC Jig Borer
YASDA YBM640V 1 600×400×350
Vertical
3-axis MC
OKUMA MA650VB 1 1530×660×610
Vertical
3-axis MC
OKUMA GENOS M460-VE 1 762×460×460
Grinding
Machine
Okamoto PSG125 1 1250×500×575
Grinding
Machine
Okamoto PSG158 1 1550×800×695
Wire EDM MAKINO U53j 2 550×370×220
CMM HEXAGON Leitz PMM-C 1 1200×1000×580
CMM HEXAGON Leitz PMM-G 1 5000×4000×3000
CMM HEXAGON DEA Global 1
Scanner HEXAGON WLS400M 1
Contour Tracer Tokyo Seimitsu 1 100×60

Heat Treatment

Description Manufacturer Dimensions Number Capacity
Vacuum
Quenching
Furnace
Chugai Ro 800×800×1200 1 1000KG
Vacuum
Quenching
Furnace
IHI 600×600×900 2 500KG
Vacuum
Tempering
Furnace
Chugai Ro 800×800×1200 1 1000KG
Vacuum
Tempering
Furnace
IHI 600×600×900 2 650KG
Vacuum
Tempering
Furnace
IHI 400×400×600 2 200KG
Washing System IHI 600×600×900 1 600KG
Shot Blast SINTOKOGIO Φ1100×500 1 700KG
Honing SINTOKOGIO 530×530×560 1 50KG
Sub-Zero
System
Beltech 550×650×750 1 350KG

Measuring/Test Equipment

Description Manufacturer Model Number Number Operating Range
Contact
Type CMM
Hexagon Metrology Leitz PMM-C 1 1200×1000×580
Contact
Type CMM
Hexagon Metrology Leitz PMM-C 1 5000×4000×3000
Contact
Type CMM
Hexagon Metrology DEA Global 1 2200×1200×1000
Non-Contact
CMM
Hexagon Metrology CogniTens WLS400M 1
Rockwell
Hardness
Tester
Mitutoyo RH-511 2
Shore
Hardness
Tester
Mitutoyo D Type 2
X-Ray
Constituent
Analyzer
Niton (Rigaku) XLt898 1

We also provide flexible support with various contracts of processing and measurement tasks.

We have established a business handling contract work of various processes—or even a single process—such as providing materials, milling to remove "surface scale ," and heat treatment. We can utilize our wealth of expertise in special steel and high-precision machining technologies to meet our customers' manufacturing needs.
We have also developed our business in fielding outsourced measurement using CMMs and non-contact measuring machine. The results of measurements obtained in our ISO17025-accredited environment are reflected in test reports that are accepted worldwide.
What's more, hybrid measurement using two measuring machines has contributed to the development of the new technology of reverse engineering. We can measure the dimensions of a mold with a CMM and photograph the mold with a non-contact measuring machine and convert this to data. This technology plays a major role in recreating molds for which the drawings have been lost.

We also provide flexible support with various contracts of processing and measurement tasks.1 We also provide flexible support with various contracts of processing and measurement tasks.2 We also provide flexible support with various contracts of processing and measurement tasks.3
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