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  3. 東進工業
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東進工業

addressOkayama/Higashi-ku, Okayama-shi/Nine coils 1119-10
phone086-948-2314
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last updated:Nov 17, 2025
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Machining [NC Lathe Processing] Machining [NC Lathe Processing]
Castings – Processed products Castings – Processed products
Aluminum Aluminum
Forging - Steel - Stainless Processing Forging - Steel - Stainless Processing
Machining processing Machining processing
Machining (small diameter and deep hole processing, shaft processing) Machining (small diameter and deep hole processing, shaft processing)
Advancement of precision cutting processing technology Advancement of precision cutting processing technology
Process integration and high precision using CNC composite machining lathes. Process integration and high precision using CNC composite machining lathes.
Advancement of machining technology for complex 3D shapes. Advancement of machining technology for complex 3D shapes.
Process integration and high precision through the addition of one axis to a vertical machining center. Process integration and high precision through the addition of one axis to a vertical machining center.
Bush insertion Bush insertion
Promotion of robotics Promotion of robotics
Advancement of measurement and measurement technology Advancement of measurement and measurement technology
Jig design and program design using 3D CAD/CAM. Jig design and program design using 3D CAD/CAM.
Castings

Castings – Processed products

Casting - Processed product

Leave complex and irregularly shaped work to us! Machining processing services for castings.

Short delivery times even from jigs. We also accept bush press-fitting. For processing castings of hydraulic parts (pumps, valves), robots, construction machinery, and industrial machine parts, come to us!

We mainly perform processing for trial production and large order lots (lot size: 100 to 1,000 units). Even for complex-shaped workpieces, such as castings, which are often avoided by other companies, we can provide high-quality and speedy responses using in-house designed dedicated jigs and special tools. 【Features】 - Workpiece size: approximately 650mm square (300mm to 700mm) - Long-standing experience in handling complex-shaped workpieces, such as castings, which are often avoided by other companies - Achieving production efficiency and cost reduction through a well-equipped number of facilities - In-house design and production of jigs and special tools *You can view the processing image collection via PDF download. Please feel free to contact us for any other inquiries.

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Machining of castings for hydraulic components used in construction machinery (FCD: ductile cast iron)

We will introduce a machining example of material FCD (ductile cast iron) using a vertical machining center with a 150mm gold ruler.

The processed parts are hydraulic components for construction machinery, requiring strict tolerances for surface roughness and geometric tolerances (such as coaxiality and cylindricity) with high precision. In addition to machining, some parts may also require honing during hole processing depending on the requirements. 【Processing Example】 ■Material: FCD (ductile cast iron) ■Dimensions: 150mm in length ■Shipping Destination: Caterpillar ■Machining Equipment: Vertical Machining Center We also accept bush pressing and deep hole processing. *For more details, please refer to the PDF document or feel free to contact us.

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Machining of castings Torque converter case (FCD: ductile cast iron)

We will introduce a machining example using a horizontal machining center with dimensions of 600×550×300 made of FCD (ductile cast iron).

This is a machining example using a horizontal machining center (table size 630 square). The processed part is a torque converter case mounted on a medium-sized forklift weighing 3.5 to 5 tons, which requires strict geometric tolerances (position, coaxiality, perpendicularity) and precision in the micron range. The industry that introduced this is the industrial machinery forklift industry. 【Machining Example】 ■ Material: FCD (ductile cast iron) ■ Dimensions: 600×550×300 (height × width × depth) ■ Shipping destination: Okanezu Industry (Powertrain ASSY) ⇒ Mitsubishi Logisnext Co., Ltd. ■ Machining machine: Horizontal machining center (table size 630 square) We also accept bush pressing and deep hole machining. *For more details, please refer to the PDF document or feel free to contact us.

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