As a major manufacturer of steel castings and forgings in Japan since foundation in 1919, we have manufactured a wide range of parts that serves as the very core of the modern production infrastructure. At Hirota Works and MSM(THAILAND) CO.,LTD., we manufacture castings and forgings with iron-based metals and high-performance alloys for use in automobile, aerospace, vessels, energy and electronics applications.

Products

Castings

Precision castings, wear-resistant cast steel products (Mitsubishi Seiko-ESCO products, etc.), heat-resistant and corrosion-resistant cast steel products and mold materials

Forgings

High-grade special steel forgings, special materials and machined products

High-performance alloy products

Super alloy and titanium alloy machined products

Machined products

Machined Metal Parts

Permanent Magnets

Alnico magnets (MK), Fe-Cr-Co magnets (KMC, KMR)

Allow Powders(water atomized powders)

High-speed steel powders, tool steel powders, stainless steel powders, super-alloy powders, magnetic material powders,
anti-sealing powders, low alloy steel powders, bearing steel powders, self-fluxing alloy powders, heat-resistant alloy powders,
corrosive resistant alloy powders, ultra-strength steel powders

Categories by Product

Precision Castings (Lost Wax Process)

We can manufacture small lost wax products from 1g to 20kg, including designs for complex and thin shapes. We maximize use of our casting technology to minimize your cost with recommended ways to lighten and consolidate your parts. By producing prototypes using 3D printer, we can quickly provide our customers with trial production samples. In addition, using noncontact three-dimensional measuring machine enables prompt measurement of complex-shaped products. We can handle special materials that need vacuum melting.

Turbocharger parts
Turbocharger parts
Turbocharger parts
Printer yokes (Printer yokes)
Nailing machine parts
(Nailing machine parts)
Parts for various industries
(Parts for various industries)

Wear-Resistant Castings (Mitsubishi Seiko-ESCO Products)

Through a long-term technical license agreement with ESCO Corp. (U.S.), a world-renowned earthmoving equipment manufacturer, we manufacture a wide variety of wear-resistant steel castings in superb quality for earthmoving equipment.
We manufacture and market products such as Ultralok® Tooth System, SuperV® Tooth System, Super Conical™ Tooth System, ConicalTM Tooth System, Bucket Lips.

Special Materials and Machined Products

We provide high-grade special steel forgings, special materials and machined products to markets such as energy, aerospace, communications, transportation systems, environment and industry machinery. Our products include turbine parts, boiler parts and environmental device parts.

Machined Metal Parts

We manipulate CNC automatic lathe and 3D simulation software to produce high productivity and cost beneficial machined metal parts by using material knowledge from our long time experience as a special steel manufacturer.
We are superior to produce complex design parts and difficult-to-cut material parts about φ1 to φ13.
Our products are widely adopted as a part in the telecommunication equipment like mobile phones, the precision equipment like cameras, automobile, motorcycles and other fields.

Automobile and motorcycle
Personal computer
Fuel injection system
Mobile phone
Camera

Magnetic Materials

Since we succeeded in developing and commercializing the AlNiCo magnets (MK magnets) in 1933 and FeCrCo magnets (KM magnets) in 1971, we have launched many other high-performance magnets into the market.
Since we transferred our production base from Japan to MSM THAILAND CO., LTD. in 1994, direct sales has broadly expanded into Southeast Asia and Western countries, not only within Japan.

Various Permanent Magnets
Products
Alnico magnets (MK)
Fe-Cr-Co magnets (KMC)
Uses :
  • Acoustic equipment ··· Speakers, Microphones
  • Automobile parts ··· Speedometers, ABS sensors
  • Electrical measuring instruments ··· Watt-hour meters,Various meters
  • Motors ··· Stepping motors, coreless motors
  • Others ··· Detectors, Communication devices, Cow magnet

Special Alloy Powders

Our special alloy powders are manufactured using our unique water atomizing technology, a combination of best technologies and skills, and vary in size from several μm to 850μm optimum for their use. We also manufacture MIREX powders, utilizing only mass-production vacuum annealing system in Japan, to meet a wide range of customer needs.
Products
High-speed steel powders, tool steel powders, stainless steel powders, super-alloy powders, magnetic material powders, sealing powders, low alloy steel powders, bearing steel powders, self-fluxing alloy powders, heat-resistant alloy powders, corrosive resistant alloy powders

MIREX Powders
MIREX powders have the characteristics below.
Compared to general water atomized powders, they have:
  1. 1.far superior compressibility,
  2. 2.high formability, and
  3. 3.low oxygen content
Uses:
  • Powder metallurgy (PM, HIP, CIP)
  • Thermal spraying, welding
  • Filters
  • Various additives
Fine MIREX Powders
Fine MIREX powders can control the following:
  1. 1.varied shapes to spherical shape
  2. 2.low fluidity to high fluidity
  3. 3.low TAP density to high TAP density
Uses:
  • Metal injection molding (MIM)
  • Electromagnetic shielding
  • Specific gravity adjustment
  • Various additives
  • Metal composite inductor