business
切削加工



Tatsumiya Metal operates a machining facility in Kyoto equipped with 46 NC multi-tasking lathes, providing precision machining services for a wide range of materials, including brass, aluminum, and iron, as well as difficult-to-machine materials such as stainless steel and copper. Leveraging the material expertise and procurement resources unique to a materials trading company, we offer end-to-end services ranging from material selection and procurement to machining and surface treatment.
-

Extensive experience in mass-producing difficult-to-machine materials such as lead-free brass, copper, and stainless steel
-

Materials Trading Companies and Processing Manufacturers
VA/VE Proposals from Two Perspectives -

One-stop service made possible
through a materials trading company’s procurement network
problem
商社の調達力と加工メーカーの
生産力を掛け合わせて実現させた「安定供給力」
It looks like it could be machined, but I can’t
get my hands on the material. With difficult-to-machine materials,
both delivery times and costs are unpredictable.
It looks like it could be machined, but I can’t get my hands on the material. Difficult-to-machine materials make delivery times and costs unpredictable.
We often hear concerns from procurement and production management professionals, such as, “We were turned down because the specialized materials were unavailable,” or “It’s difficult to manage delivery schedules for both materials and processing.” At Tatsumiya Metal, we leverage our procurement capabilities as a specialized trading company for non-ferrous materials and our in-house production facilities to ensure a stable supply of products and provide a one-stop solution.

order
切削加工部品のご紹介
Overview
-
Machinable diameter
φ2~51
-
Material
Brass
Eco Brass C3602 C3604 C3771
Stainless steel
SUS304 SUS303 SUS316 SUS430 SUS440C SUS310 SUS420J2
Iron
S45C S45CH SCM415 SCM435 SCM415N SS400 SCM435H
Aluminum
CB156 A2011 A2017 A5056 A6061 A7075
etc.
Titanium (TB340) Copper (C1020, C1100) Phosphor bronze (C5441)
-
Delivery Record
Automotive, city gas, LP gas, pneumatic control, hydraulic control, semiconductors, low-voltage components, solar power generation, and other related components
-
Equipment
Citizen Machinery
B12: 1 unit K12: 2 units
L12: 1 unit L16: 2 units
L20: 11 units L20E: 5 units
A32: 4 units L32: 6 units
BNJ-42S: 1 unit
BHJ-51SY: 3 unitsStar Precision
SR-20: 1 unit
SR-32J: 1 unit
SR-38: 2 units
-
Other
We have partner factories that specialize in surface treatments (such as plating, anodizing, and heat treatment) and secondary processing.
Works
切削加工実績
-
SUS304 φ24.0×12L
Material :
stainless-steel
Shape :
cross-hole, internal-groove
-
SUS304 φ23.0×9.8L
Material :
stainless-steel
Shape :
sharp-edge, surface-roughness-ra1-6
-
C3604 HEX27×36.5L
Material :
brass
Shape :
nickel-plating
-
SCM415 φ12.2×65.5L
Material :
steel
Shape :
coaxiality-%cf%860-01, heat-treatment, roundness-0-02
-
Eco Brass φ20.5 × 62.7L
Material :
lead-free-brass
Shape :
groove-outer-diameter-tolerance-%c2%b10-05
strengths
辰己屋金属の強み
Why Choose Tatsumiya Metal?
Tatsumiya Metal is chosen not only for the quality and cost of its products, but also for its stable supply and flexible service. This is underpinned by the trust we have built as a materials trading company over the 90 years since our founding, as well as the expertise we have cultivated as a processing manufacturer over the past 40 years.
#01
We operate 46 NC multi-tasking lathes at our in-house factory. We handle a wide range of production volumes, from dozens of units to tens of thousands per month, and by maintaining a stable supply, we help reduce inventory costs.
#02
To: Air Conditioning Equipment Manufacturers
In response to a request to “compare and evaluate lead-free brass materials from various suppliers,” we proposed lead-free brass materials from major manufacturers. We handled everything from material procurement to prototyping, making a significant contribution to the product development process.#03
To: Hydraulic Equipment Manufacturers
We have been involved in the development of parts that other companies have declined to produce, starting from the design review stage. In addition to improving the performance of the finished products, we have taken full responsibility for the prototyping and mass production of these core components, maintaining stable quality and ensuring a consistent supply over many years.#04
To: Pneumatic Equipment Manufacturers
We have a proven track record of supplying products to a wide range of industries, including housing equipment, construction machinery, industrial machinery, electronics, medical devices, and the automotive sector. Leveraging the extensive expertise we have cultivated in these fields, we have provided value engineering (VE) proposals for design improvements, thereby contributing to cost reductions.

contact
お問い合わせ
Please feel free to contact us for a consultation.
In addition to machining, we can also provide procurement and technical consulting services, addressing questions such as “Which materials should be used?” and “What is the optimal balance between delivery time and precision?”
Click here to contact us by phone
0774-63-6560
Kyotanabe Plant
10 Osumi Suginomori, Kyotanabe City, Kyoto Prefecture 610-0343
Reception Hours: Weekdays 9:00 AM–5:00 PM

FAQ
よくあるご質問
Q01
Can you machine difficult-to-machine materials (such as SUS304, SUS316L, and titanium)?
Yes, we can handle that. We have extensive experience machining difficult-to-cut materials,
and we ensure a high-quality finish by selecting the optimal tools and cutting conditions.
Q02
Can you handle the procurement of materials for us?
Of course, that’s possible.
As a trading company specializing in non-ferrous metals, we stock and source a wide range of materials, including copper, brass, aluminum, and stainless steel,
and we can handle both the procurement and processing for you.
Q03
Please let me know about minimum order quantities and whether you offer prototyping services.
We are flexible in handling requests for prototypes and small batches (starting from a single unit).
Please feel free to consult with us regarding new product development and the launch phase.
Q04
What is your quality assurance system like?
Tatsumiya Metal possesses precision measuring equipment, such as roundness measuring instruments and contour measuring machines,
and conducts pre-shipment inspections. We can also provide inspection reports covering dimensional accuracy, surface roughness, and other parameters as required.
Q05
Can I request machining services using my own materials?
Yes, we also accept orders for machining using customer-supplied materials. We will assess whether we can accommodate your request after confirming the material, shape, and dimensions, so please feel free to contact us for a consultation.





