We are also skilled in polishing spherical parts of shafts and irregularly shaped spherical components.
Tochiden Co., Ltd. achieves "±3μm level precision" primarily through cylindrical grinding, centerless grinding, and internal grinding. The assembly areas of important drive components such as crankshafts and connecting rods require lapping, but we have developed high-precision processing technology that allows assembly without lapping. By applying highly precise machining to the inner spherical part of the connecting rod, we enable cost reduction in manufacturing, improve productivity, enhance durability, and achieve cost savings. 【Features】 ■ Capability to handle eccentric shafts and irregular shapes ■ Support for spherical grinding ■ Lapping-free and grinding-free technology *For more details, please download the PDF or feel free to contact us.
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【Equipment (Partial)】 ■Cylindrical Grinding ■NC Cylindrical Grinding Machine ■Centerless Grinding Machine ■Internal Grinding Machine ■Honing Machine ■Double-Ended Polishing Machine *For more details, please download the PDF or feel free to contact us.
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For more details, please download the PDF or feel free to contact us.
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We handle everything in-house from cutting and grinding processes such as turning, machining, cylindrical grinding, centerless grinding, and internal grinding, to heat treatment, surface treatment, and assembly. We also accommodate material procurement for forging, lost wax, and more. Our integrated production allows us to meet customer needs with QCD (Quality, Cost, Delivery). We eliminate the hassle of managing costs, delivery times, and quality across multiple companies for our customers. Materials: SCM415, S45C, SCR415, MM45, A7075, A5042, C3771, etc. Iron, stainless steel, aluminum, copper, castings Shapes: From round bars to irregular shapes We design and provide processing jigs in-house. Lot sizes vary from about 10 to 10,000, so please consult with us. We specialize in mass production of lots ranging from 100 to 1,000. Sizes: Approximately Φ5 to φ150 mm, with larger items around L500 mm, we excel at palm-sized products. We accommodate strict geometric tolerances, such as 2-micron tolerances in cylindrical grinding. We can handle outside diameter and inside diameter grinding processes only, as well as turning and machining processes only. For eccentric shafts, spherical grinding, and precision machining, please leave it to us. We look forward to your inquiries!
![[Processing Example] Crankshaft for Engine Made of SCM415 9](https://image.mono.ipros.com/public/product/image/15c/2000928155/IPROS31916846062624104253.jpeg?w=280&h=280)
![[Processing Example] Crankshaft 8 for Engine Made of SCM415](https://image.mono.ipros.com/public/product/image/b4d/2000928139/IPROS62481860606273905875.jpeg?w=280&h=280)
![[Processing Example] Crankshaft for Engine Made of SCM415 10](https://image.mono.ipros.com/public/product/image/260/2000928163/IPROS47250798092126964957.jpeg?w=280&h=280)
![[Processing Example] Crankshaft for S43C Engine 7](https://image.mono.ipros.com/public/product/image/6d6/2000928081/IPROS16436501526594878966.jpeg?w=280&h=280)
![[Processing Example] Crankshaft 6 for Engine Made of SCM415](https://image.mono.ipros.com/public/product/image/e59/2000928102/IPROS85015561746047117031.jpeg?w=280&h=280)
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