03Capable in Large parts and difficult-to-cut materials

Capable of handling large parts in each machining process

YAMATO Corporation has various facilities that can handle large parts.
The size of parts we can handle in each process is as follows

General guidelines for the handling size

Size range for cutting and
milling processing

Target materialsStainless steel, aluminum, copper, iron, Inconel alloy, titanium alloy, Hastelloy alloy, molybdenum, etc.

Milling lathe processing
Possible size guidelines

Target materialsStainless steel, aluminum, copper, iron, Inconel alloy, titanium alloy, Hastelloy alloy, molybdenum, etc.

Approximate sizes for precision sheet
metal processing

Target materialsStainless steel, Aluminum, Iron steel , Brass

Experience in machining difficult-to-cut materials such as titanium and molybdenum

YAMATO Corporation has a large number of 5-axis machining centers and multi-axis lathes, and is skilled in processing complex shapes. In addition to common metals such as stainless steel, aluminum, and iron, we have a wealth of experience in processing difficult-to-cut materials such as titanium and molybdenum. We also have an electron beam welding machine, which allows us to perform titanium welding

List of materials types

Material Name Material codes Work size (example) Precision Processing shape
Aluminum alloy A5052   Radial direction ±0.008 Round object, Rectangular object, chamber
A1050   Longitudinal direction ±0.05
A1070 φ25x125.75L Coaxiality φ0.01
A2017 300x780x830  
A5056 Radial direction ±0.008  
Stainless steel SUS303 φ86x58L Radial direction ±0.008 Round object, Rectangular Object, plate
SUS304 55x280x1792 Longitudinal direction ±0.05
SUS304L   Flatness ±0.3
SUS316 14x20x41 Parallelism φ0.03
Steel / Iron S25C 300x780x830   Round object, Rectangular object, Plate
Pure copper C1020 Φ133×205.6L、
Radial direction ±0.025
Longitudinal direction ±0.05
Coaxiality φ0.05
Round object, Rectangular
Titanium Pure titanium φ68x144.5L Radial direction ±0.05
Longitudinal direction ±0.05
Roundness ±0.1
Round object, Rectangular object
SUSTi Φ348x41L
Aloy TZM(Ti-Zr-Mo, Titanium-Zirconium-Molybdenum) alloy
TZM-Alloy(Titnaium-Zirconium-Molybdenum Alloy)
φ48.3×283L Radial direction ±0.003
Longitudinal direction ±0.004
Coaxiality φ0.02
Inconel 600, Alloy 20, Hastelloy, Stellite, Stavax      
Resin Polyamide, Nylon      

The possible metal processing services provided by YAMATO Corporation are as follows

Metal processing is mainly classified into 22 processes, but YAMATO Corporation supports 7 of them

We can handle the main metal machining menu (Milling, grinding, cutting processing, electrical discharge cutting machining, welding) with our in-house equipment. In addition, we can also respond to your requests for surface treatments such as electroplating and painting through our network in the Nagaoka area near by.

We have equipment to handle difficult-to-machine materials and special processing

5-axis control machining center T1 (MAKINO)

T1 5-axis control machining center

We have machining centers capable of processing large and difficult-to-machine materials such as stainless steel and titanium.T1 machining center is specialized in processing difficult-to-machine materials used in aerospace components such as titanium alloys, Inconel, and stainless steel. One of its features is the high torque that continues from the low-speed range to the high-speed range of the spindle, making it suitable for processing difficult materials. In addition to difficult-to-machine materials, it is also capable of high-precision machining of aluminum alloys

Workpiece: Maximum1,000×1,000mm
Refer to manufacturer's website Refer to manufacturer's website
Electron Beam Precision Welding Machine (Mitsubishi Electric)


Electron Beam Processing that can also perform welding of heat-resistant metal materials, which are in high demandElectron beam machining is a method of processing in which a beam of heated electrons is irradiated onto the workpiece to heat and melt it (similar to the structure of a TV cathode ray tube). This process allows for low-strain, thick welding. It is capable of processing highly reflective materials such as copper and aluminum, as well as high-melting point materials such as titanium, tungsten, and molybdenum

Workpiece: Maximum workpiece diameter Φ450mm
Maximum height 450mm
Welding diameter: Φ350mm
Refer to manufacturer's website)
Fiber Laser Punch Combination Machine (TRUMPF)

TruMatic 6000fiber

Fiber laser and punch combination machine allows for high-quality and precise sheet metal processingSheet thicknesses up to 6mm with a laser output of 3kW

Punch maximum pressing force: 180Kn(18t)
Materials for processing: Stainless steel, Aluminum, Brass.
Repetitive machining accuracy: ±0.03mm
Refer to manufacturer's website Refer to manufacturer's website
YAG Laser welding robot (TRUMPF)

TruLaser Weld 5000
T1 5-axis control horizontal machining center is a trademark of Makino Milling Machine Co., Ltd.
EBM-6LB-1VR-C5050 is a trademark of Mitsubishi Electric Corporation
TruMatic 6000fiber is a trademark of Trumpf Inc. and TRUMPF SE + Co. KG.
TruLaser Weld 5000 is a trademark of Trumpf Co., Ltd. and TRUMPF SE + Co. KG.

Fillet-free" high-quality welding using fiber laser and robotic weldingLaser welding, which is different from arc welding, focuses on a single point of irradiation, so the heat does not spread and there is less distortion and scorching, resulting in a much more beautiful finish. YAG laser generated by an electric pulse is used to melt the base material and perform the welding, so there is no need for any "filler". Welding is programmed and controlled by a robot and is linked to a 2-axis position table, ensuring stable quality with extremely low errors.
It is mainly used for semiconductor equipment and related cover housings for food machinery.

Refer to manufacturer's website Refer to manufacturer's website