Challenging Innovation — High-Grade Castings for the World

Copper-alloy and stainless steel castingsTakaoka, Toyama, Japan

Ueda Metal Works: Cast large.Machine precisely.

Founded in 1929. Approaching our 100th anniversary in 2029.

Sand casting
approx. 5 kg to 2 t
max. Φ2,000 × 2,000 L
Minimum order
1 piece, as a rule

Ueda Metal Works began in Osaka in 1929, making copper-alloy castings for ships. Today, in Takaoka, Toyama, we pour castings of up to approx. 2 t and deliver them as parts, finished by our own machining and the precision machining of our group.

Video content (on-screen text in Japanese): drawing lines appear with the words “From a single line, a form is born.” Then screens and photos of each step in order: 01 Design, 02 Simulation, 03 Pattern, 04 Molding, 05 Melting, 06 Tapping, 07 Pouring, 08 Machining, 09 Products. It closes with “From drawing to a sound form. Consistent from design to machining.”

From a single line to a finished part: our process in about 40 seconds.
Sand casting
approx. 5 kg to 2 t, max. Φ2,000 × 2,000 L
Centrifugal casting
Φ120–Φ800
Machining
max. Φ1,850
Precision turning (group company Hayahoshi Seiko)
OD φ5–600 mm
Minimum order
1 piece, as a rule
A copper-alloy flanged bushing clamped on the table of a vertical lathe, its machined surface shining gold
Machining a copper-alloy flanged bushing. The photo shows one example in progress.
Fig. Schematic drawn to the same scale (Detail A at three times that scale). A φ200 part is one tenth the width of the Φ2,000 bushing. The Φ2,000 bushing shows the maximum diameter for sand casting, as cast (before machining). The cap blade is stainless steel; the φ1,000 and φ600 bushings and the other Detail A parts are copper alloy. Sizes and shapes are illustrative and differ from actual products.

Chapter I, Scale

We cast a wide range of pieces, from small parts to large castings.

To cast large pieces, everything has to match: the furnaces that melt, the cranes that lift, the sand molds, and the lathes that cut. As a rule, we accept orders from a single piece (this depends on the material).

Using the right material, the right casting, and the right machining is a skill that cannot be learned in a short time.

From the Ueda Metal Works products page

Next chapterII Fire and Hands

Chapter II, Fire and Hands: Every step passes through human hands.

Large copper-alloy castings mean more metal to melt, more sand for the mold, and more weight to lift. We keep the work in-house, from pattern making and checking the chemical composition of the melt to pouring and finishing on the lathe.

Craftspeople in full command of their equipment. The result: consistent quality.

From the Ueda Metal Works production page

CapabilitiesOur process, step by step

A worker in a helmet and face shield tilts a ladle to pour molten metal into a stacked sand mold as flames and steam rise
Tilting the ladle to pour into a sand mold.

From the process albumFour scenes, from pattern to machining

  1. A CNC cutter carving a curved wooden pattern out of laminated timber
    1Cutting the pattern
  2. Molten metal being transferred from the furnace to a ladle, with sparks flying
    2From furnace to ladle
  3. The Shimadzu PDA-7000 optical emission spectrometer
    3Checking the chemistryShimadzu PDA-7000
  4. A large ring-shaped casting mounted on the faceplate of a face lathe for turning
    4Turning on the lathe

Next chapterIII Hand-off

Chapter III, Hand-off: A casting becomes a part, hand to hand.

Castings poured and machined at Ueda Metal Works that need still finer finishing are machined by Hayahoshi Seiko, our group company. Founded in 1963, Hayahoshi Seiko handles precision turning of φ5–600 mm OD and runs from single prototypes to volume production on the scale of 600,000 pieces a month. It is ISO 9001:2015 certified.

Sizes and quantities beyond what Ueda Metal Works can cast are sourced by our parent company, Co Creation, through its network in Japan and overseas.

However many hands a casting passes through, you have a single point of contact: Ueda Metal Works.

Ishimaru, TakaokaUeda Metal Works
Co Creation

Fuchu, Toyama CityHayahoshi Seiko

Fig. Ishimaru, Takaoka, and Fuchu, Toyama City (simplified map). Castings that need precision finishing travel from Takaoka to Fuchu to become parts.
The three companies of the group
FoundedCompanyLocationRole
1929Founded Ueda Metal Works Co., Ltd. Ishimaru, Takaoka, Toyama Casting and machining (max. Φ1,850). Your point of contact.
1963Founded Hayahoshi Seiko Co., Ltd. Fuchu, Toyama City, Toyama Precision turning, OD φ5–600 mm, and volume production. ISO 9001:2015 certified.
2018Established Co Creation Co., Ltd. (parent company) Ishimaru, Takaoka, Toyama Sourcing of large and high-volume items beyond Ueda Metal Works’ range (sourcing track record: approx. 7 t in cast iron, approx. 3.5 t in stainless steel).

Next chapterIV A Century

Chapter IV, A Century: Nearly a century of casting copper alloys.

Founded in Osaka, Ueda Metal Works moved its factory to Shinminato and then to Takaoka, making copper-alloy castings all along. Since the business succession in 2021, we have been working toward our 100th anniversary as a member of the Co Creation group.

A cast company nameplate with the company name in raised Japanese characters and the words UEDA METAL WORKS, LTD.
The company nameplate: 株式会社 上田合金所, UEDA METAL WORKS, LTD.

1929Founded in Izuo, Taisho-ku, Osaka, making copper-alloy castings for naval ship parts

  1. 1944Moved the factory to Shinminato, Toyama, and resumed operations
  2. 1947Incorporated as Ueda Metal Works Co., Ltd.
  3. 1960Moved to a new factory in Nomachi, Takaoka, and opened a machine shop
  4. 1975Completed the Toyama Shinko Factory
  5. 2021Business succession by Co Creation Co., Ltd.
  6. 2023Introduced an optical emission spectrometer and a 500 kg high-frequency induction furnace. Formed a capital and business alliance with Hayahoshi Seiko Co., Ltd.
  7. 2024Acquired the Second Factory through business succession
  8. 2025Acquired the Third Factory through business succession. Replaced all heavy-oil furnaces with gas furnaces

Now: 2026

100th anniversary2029

A word from our president

Taking the foundry I inherited into the next 100 years.

Founded in 1929, this foundry lost its Osaka factory to war damage, restarted in Shinminato in 1944, and moved to Takaoka, a town of casting, in 1960. Having grown up on the foundry floor, I took it over in 2021. Together with our employees, I will carry it into the next 100 years. A single drawing is enough to start, so please feel free to contact us.

Portrait of Kazuki Sawada, President

Kazuki SawadaPresident

What we have made

Plain bearings, worm gears, worm wheels, press bushings, gearboxes, and housings: parts for industrial machinery, construction machinery, ships, and pumps. If it is a casting, please get in touch.

Copper-alloy straight bushings standing on the floor: CAC502, 680 mm OD and 700 mm long, rough-machined
Straight bushingCAC502φ680 × 700Rough-machined
A copper-alloy flanged bushing: CAC406, 580 mm OD and 600 mm long, rough-machined
Flanged bushingCAC406φ580 × 600Rough-machined
A stainless steel cap blade: SCS13, φ200 × H70, 7 kg
Cap bladeSCS13φ200 × H707 kg
A cast steel housing on a pallet: SC450, φ740 × H570, 520 kg
HousingSC450φ740 × H570520 kg
The lower section of a cast iron gearbox: FC300, 1,160 × 810 × H350, 300 kg
Gearbox, lower sectionFC3001,160 × 810 × H350300 kg

A single drawing is enough to start.

If it is a casting, please contact us. Knowing the material, dimensions, weight, and quantity helps us prepare a quotation quickly. After we receive your inquiry, we will let you know how to send drawings.

Four things that help us quote: material, dimensions, weight, quantity

Example: CAC406, φ580 × 600, approx. 200 kg, 2 pieces

Ueda Metal Works Co., Ltd.708-1 Ishimaru, Takaoka
Toyama 934-0095, Japan

Call+81-766-84-3344

Mon–Fri, 8:00–16:45 JST (UTC+9)
Closed on weekends; please check with us about Japanese public holidays
FAX +81-766-84-8725

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