Precision Machining

Manufacturing processes

  • 01

    Material Cutting

  • 02

    Rough processing

  • 03

    Heat treatment

  • 04

    Finish processing

  • 05

    Inspection

  • 06

    Product shipment

Material Cutting

Materials are cut according to product shapes. Based on the processing conditions of the subsequent processes, the machining allowance is minimized to reduce material loss. We have a bandsaw machine equipped with a pulse cutting function that gives pulse vibrations to the blade, and it reduces cutting resistance to enable high-speed cutting.

Example of the equipment used

  • Bandsaw machine

Rough Processing

We can cut a wide range of workpieces from palm-sized ones to ones as large as four meters. We have experience in processing difficult-to-cut materials, such as Invar, titanium (64Ti), and permalloy.

Examples of the equipment used

  • Vertical machining center
  • Milling machine
  • Lathe (CNC/Universal)
  • Double column five-face machining center
  • Vertical axis rotary surface grinding machine

Heat Treatment

To maximize the characteristics of special steel (Yasugi specialty steel), we heat-treat it in house. Using a vacuum quenching furnace, we perform advanced quenching and tempering that cause less oxidation and deformation. We can also perform the aging treatment of Inconel and stainless steel, as well as treatment for giving magnetic properties to soft magnetic materials in a hydrogen atmosphere.

Examples of the equipment used

  • Vacuum quenching furnace
  • Tempering furnace
  • Atmosphere furnace

Finish Processing

To meet customer needs, we have a variety of different types of grinding machines that overwhelm competitors. We specialize in advanced precision-finish grinding of a wide variety of workpieces ranging from round, flat, and square ones to ones with irregular shapes that are difficult to grind. We develop grinding wheels jointly with grinding wheel manufacturers to deliver finish quality according to need.

Examples of the equipment used

  • Wire electric discharge machine
  • Horizontal axis rotary surface grinding machine
  • Cylindrical grinding machine (CNC/Universal)
  • Internal grinding machine
  • Horizontal axis surface grinding machine (CNC/Universal)
  • Double side lapping machine
  • Profile grinding machine (CNC/Universal)

Product Inspection

We manage quality strictly using measuring instruments with high accuracy and stability. Based on our integrated quality assurance system covering materials, heat treatment, and processing, we perform quality improvement activities to deliver more stable quality.

Examples of the equipment used

  • CNC three-dimensional measuring machine
  • Profile measuring machine
  • Digital microscope
  • Various types of hardness gauges
  • (Vickers, micro-Vickers, and Rockwell)
  • Surface roughness tester
  • Projector
  • Image dimension measuring instrument
  • Geometry measurement microscope
  • Non-contact measuring instrument

Product Shipment

All products are shipped after passing stringent testing. We always try to pack products in a way that is suitable for their shapes and specifications.

Major Equipment

Material cutting

Equipment nameManufacturerModelWorkpiece sizeNo. of units
BandsawAmada Co., Ltd.HFA-250-SAφ2501
Bandsaw Amada Co., Ltd.HFA-300φ3002
BandsawAmada Co., Ltd.PCSAW-330φ3301
BandsawAmada Co., Ltd.HFA-400CNC、HFA-16Sφ4002
Bandsaw Amada Co., Ltd.HFA-500φ5001
Shearing cutting machineKomatsu Industries Corp.KS4-24×12501

PCSAW-330

Rough processing equipment

Equipment nameManufacturerModelWorkpiece sizeNo. of units
Vertical machining centerOkuma CorporationMC-30VAX510×Y330×Z4001
Vertical machining centerOkuma CorporationMC-4VA X410xY450xZ650 1
Vertical machining centerOkuma CorporationMC-4VAE X760xY400xZ450 1
Vertical machining centerOkuma CorporationMC-4VA,VB X760xY410xZ450 5
Vertical machining centerOkuma CorporationMC-40VB X760xY430xZ450 1
Vertical machining centerMakino Milling Machine Co., Ltd.V33 X900xY500xZ350 1
Vertical machining centerMakino Milling Machine Co., Ltd.V55 X900xY500xZ450 2
Vertical machining centerFanuc CorporationαーT21iFa X500xY400xZ3502
Vertical machining centerToyoda Machine Works Ltd.SV65 X1250xY600xZ500 1
Double column five-face machining centerMitsubishi Heavy Industries Machine Tool Co., Ltd. MVR30 X4000xY2000xZ700 1
Vertical milling machineMakino Milling Machine Co., Ltd.KB-55 X450xY300x500 1
Vertical milling machineTaiwa Co., Ltd.TMV-2 X700xY400x400 1
Vertical milling machineYamasaki Giken Co., Ltd.YZ-8C X350xY540x850 1
Vertical milling machineYamasaki Giken Co., Ltd. YZ-8L X1000xY500x500 1
CNC latheMurata Machinery, Ltd.MW120 1
CNC latheOkuma Corporation LB-25 φ360×650 1
CNC latheOkuma CorporationLB-25 φ360×1250 1
CNC latheOkuma CorporationLB35ⅡCX1500 φ460×1500 1
LatheTakisawa Machine Tool Co., Ltd.TAL-510 φ300×1000 1
LatheTakisawa Machine Tool Co., Ltd.TAL-560 φ560×1500 1
LatheYamasaki Giken Co., Ltd.φ300×1000 1
Rotary grinding machineShibaura Machine Co., Ltd.KRTC-9A φ850×200 1
Rotary grinding machineShibaura Machine Co., Ltd.KRTC-11A φ1000×250 1
Rotary grinding machineShibaura Machine Co., Ltd.KRTC-11A φ1100×400 1
Rotary grinding machineSumitomo Heavy Industries, Ltd.SVR125φ1350×6401

Heat treatment equipment

Equipment nameManufacturerWorkpiece sizeNo. of units
Vacuum furnaceW400×H350×500L 1
Vacuum furnaceSEAVAC, Inc.W600×H600×900L 2
Vacuum furnace (Sintering furnace)W500×H500×800L 1
Electric resistance furnaceNihon Riki Kogyo Co., Ltd.W450×H350×450L 2
Electric resistance furnaceToyo Seisakusho Kaisha, Ltd.W540×H800×790L 1
Electric resistance furnaceNakanihon-Ro Kogyo Co., Ltd.W550×H350×1000L 1
Electric resistance furnaceW580×H200×550L 1
Electric resistance furnaceSEAVAC, Inc.W600×H900×600L2

Vacuum furnace

Finish processing equipment

Equipment nameManufacturerModelWorkpiece sizeNo. of units
Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-63DX,ACC12-24DX,PSG63SA1600×300 10
Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-64AN 600×400 2
Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-125DX 1200×500 1
Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-15B 500×1500 1
Surface grinding machineNippei Industrial Co., Ltd.NT-C 550×3100 1
NC Surface grinding machineOkamoto Machine Tool Works, Ltd.KSK-22 150×250 1
NC Surface grinding machineOkamoto Machine Tool Works, Ltd.CNC-42UP 300×200 1
NC Surface grinding machineOkamoto Machine Tool Works, Ltd.UPZ52Li400×200 1
NC Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-52DXNC 500×200 1
NC Surface grinding machineOkamoto Machine Tool Works, Ltd.PSG-63DXNC 600×300 1
NC Surface grinding machineHitachi Seiko, Ltd.GHL-B516NSP 560×1700 1
NC Surface grinding machineSumitomo Heavy Industries, Ltd.KSH850S 800×5000 1
Rotary surface grinding machineSansei Co., Ltd.SS-501 φ400×100 1
Rotary surface grinding machineOkamoto Machine Tool Works, Ltd.PRG-6DX φ550×250 1
Cylindrical grinding machineKondo Machine Works Co., Ltd.GLOSS-N450 φ80x450 2
Cylindrical grinding machineToyoda Machine Works Ltd.GUX25x63 φ100x650 1
Cylindrical grinding machineKondo Machine Works Co., Ltd. GLOSS-450 φ120x470 1
Cylindrical grinding machineToyoda Machine Works Ltd.GP15-50 φ150x500 1
Cylindrical grinding machineToyoda Machine Works Ltd.GOP32x50 φ220x500 1
Cylindrical grinding machineShigiya Machinery Works Ltd.GP30-60A φ250x600 1
Cylindrical grinding machineToshiba Machine Co., Ltd.KSR-325 φ300×2500 1
Cylindrical grinding machineToyoda Machine Works Ltd.GOP32×100 φ320×1000 2
NC cylindrical grinding machineOkuma CorporationGP-34N φ300×400 1
NC cylindrical grinding machineJTEKT CorporationGE4Ai-50PRO φ320×500 1
NC cylindrical grinding machineJTEKT CorporationGE4PI-100 φ400×1000 1
Internal grinding machineOkamoto Machine Tool Works, Ltd.IGM-1E (φ1.2~φ133)×70 2
Profile grinding machineOkamoto Machine Tool Works, Ltd.OCG-2, OCG-2SA 130×150×160 2
NC profile grinding machineOkamoto Machine Tool Works, Ltd.OCG-2NC φ135×150 1
NC profile grinding machineWaida Mfg. Co., Ltd.SPG-Wi φ160×200 1
NC profile grinding machineWaida Mfg. Co., Ltd.PGX-2000、2500、3500 φ200×240 6
Round blade grinding machineHikari Kikai Seisakusho Co., Ltd.X200×Y200xZ350 1
Double side lapping machineSpeedFam Co., Ltd.12B-6L Φ850×360×40 1
Double side lapping machineSpeedFam Co., Ltd.15B-5L-2M Φ1022×346×50 1
Wire cut electrical discharge machineFanuc Corporationα-0iA X320×Y220×Z180 2
Wire cut electrical discharge machineFanuc Corporationα-1iA X520×Y370×Z310 1
Wire cut electrical discharge machineSodick Co., Ltd.AQ537L X570×Y370×Z350 1
Wire cut electrical discharge machineSodick Co., Ltd.AL600G X600×Y400×Z350 1
Slot electrical discharge machineSodick Co., Ltd.K1C X200×Y200×Z300 2
Small-sized centrifugal barrelTipton Corp.HS-R30X 7.5L/Pot 2
Large-sized centrifugal barrelTipton Corp.HSR-80 20L/Pot 1
Small-sized vibratory barrelTipton Corp.CQ-20 20L 2
Medium-sized vibratory barrelTipton Corp.CL-50 50L 1
Bead blasting machineW350×H400×350L2

Inspection equipment

Equipment nameManufacturerModelNo. of units
Three-dimensional measuring machineTokyo Seimitsu Co., Ltd.SVA1000A 1
Three-dimensional measuring machineTokyo Seimitsu Co., Ltd.PA600A 1
Image dimension measuring instrumentKeyence CorporationIM70201
Image dimension measuring instrumentKeyence CorporationIM6020 1
Roundness measuring machineTokyo Seimitsu Co., Ltd.RONDCOM NEX 300DX-11 1
Universal projectorNikon CorporationV-20B 1
Profile measuring instrumentTokyo Seimitsu Co., Ltd.CONTOURECORD2600 1
Surface roughness testerTokyo Seimitsu Co., Ltd.SURFCOM1500SD3 1
Hc meterTohoku Steel Co., Ltd.K-HC-1000 1
Hc meterTohoku Steel Co., Ltd.K-HC-2000 1
BH tracerToei Industry Co., Ltd.TRF-5AH 1
Rockwell hardness gaugeAkashi CorporationATK-F3000 1

Other processing equipment

Equipment nameManufacturerModelWorkpiece sizeNo. of units
Slicing machineOkamoto Machine Tool Works, Ltd.ASM-UPX 105×220 1
Spinning machineNihon Spindle Manufacturing Co., Ltd.VF-T1000-NC6 t4×φ1000 1
Crank pressIkuno Kikai K. K.1
Liquid honingFujiseiki Machine Works, Ltd.TF-10F φ200×800 1
Drilling machineAshina Iron Works Co., Ltd. AUD-500520×3301

株式会社守谷刃物研究所

【Head Office/Plant】
113-1 Enoshima-cho-Yasugi-shi,
Shimane-ken, 692-0057 Japan
FAX:+81-854-23-1403

【Tokyo Sales Office】
JRE Shiba-2-Chome Daimon Building 3F3-3 Shiba 2-Chome,
Minato-ku, Tokyo 105-0014 Japan
FAX:+81-3-5765-7507