セイワ List of Products and Services

Seiwa Co., Ltd. specializes in processing single items and small lots, accommodating various materials. We are particularly skilled in lathe processing of die steel (SKD11, SKD60) after hardening, as well as lathe processing of SUS630, with numerous achievements in the processing of rolls, shafts, and cylinders. With a large number of machine tools, including NC lathes, we can respond to short delivery times. Additionally, we collaborate with reliable partner companies to provide heat treatment, allowing us to offer integrated production and delivery if you place your order with Seiwa. We manufacture press rolls used in roll press equipment for coaters, and thanks to our years of knowledge and technology, we can deliver at low cost. Press rolls require lathe processing of SKD11, which can be challenging. If you are considering a new roll press device, please reach out to our experienced team. *For more details, please refer to the PDF or contact us.*

• Processing Contract

Seiwa Co., Ltd. specializes in processing single items and small lots, accommodating various materials. We are particularly skilled in lathe processing of die steel (SKD11, SKD60) after hardening, as well as lathe processing of SUS630. With a large number of machine tools, including NC lathes, we can respond to short delivery times. Additionally, we collaborate with reliable partner companies to handle heat treatment, allowing us to provide integrated production and delivery when you request our services. We manufacture press rolls used in roll presses for coaters, and thanks to our years of knowledge and technology, we can deliver them at low cost. Press rolls require lathe processing of SKD11, which can be challenging. If you are considering a new roll press system, please reach out to our experienced team. *For more details, please refer to the PDF or contact us.*

• Processing Contract

It is used to uniform high-performance materials. We also accept processing with materials included. For more details, please contact us below!

• Other processing machines

【Processing Technology】 ■ Cutting Processing (Lathe Processing, Long-Length Lathe, Milling, Machining, Gundrilling, Gear Cutting, Turning, etc.) ■ Electrical Discharge Machining (Wire Cutting, Small Hole Discharge) ■ Grinding (Surface Grinding, Cylindrical Grinding, Buffing, Centerless, Inner Diameter) ■ Argon Welding ■ Plating (Hard Chrome, Electroless Nickel, Anodizing) *For detailed data, please download the PDF or contact us!

• Processing Contract

Through in-house research and development, we have numerous achievements with friction shafts at a low tension of 30N/m. We are also capable of producing friction shafts for both clockwise and counterclockwise rotation. Additionally, we can manufacture friction shafts that are 6 inches or larger. With years of experience, we cater to the individual needs of each customer. 【Features】 ■ Accurate tension control ■ Low tension winding ■ Wide range control ■ Tension difference control for each ring ■ Tension fluctuation control due to bending load ■ Easy maintenance ■ Control everything without reducing speed *For detailed data, please download the PDF or contact us!

• shaft
• roller
• Bag making machine/slitter

We can also manufacture friction shafts of 6 inches or more. With years of experience, we cater to the individual needs of each customer. Additionally, through our in-house research and development, we have numerous achievements with low tension of 30N/m for friction shafts. We can also produce friction shafts for both clockwise and counterclockwise rotation. 【Features of Friction Shafts】 ■ Accurate tension control ■ Low tension winding ■ Wide range control ■ Tension difference control for each ring ■ Tension fluctuation control due to bending loads ■ Easy maintenance ■ Control everything without reducing speed By replacing the winding shaft, we achieve "high productivity." This brings about high quality and high profitability. Transform your current "winding machine" into a profit-expanding facility. Please consider Seiwa's "KS Friction Shaft."

• roller
• shaft
• Bag making machine/slitter

Our friction shafts enable high-quality winding of metal foils, stretchable sheets, special films, and more. By replacing the winding shaft, we achieve "high productivity." This brings about the benefits of high quality and high profitability. Transform your current "winding machine" into a profit-expanding facility. Please consider Seiwa's "KS Friction Shaft." 【Features】 ■ Accurate tension control ■ Low tension winding ■ Wide range control ■ Tension difference control for each ring ■ Tension fluctuation control due to bending load ■ Easy maintenance ■ Control everything without reducing speed *For detailed data, please download the PDF or contact us!

• Bag making machine/slitter
• shaft
• roller

By replacing the winding shaft, we achieve "high productivity." This brings about the effects of high quality and high profitability. Transform your current "winding machine" into a profit-expanding device. Please consider Seiwa's "KS Friction Shaft." 【Features】 ■ Accurate tension control ■ Low tension winding ■ Wide range control ■ Tension difference control for each ring ■ Tension fluctuation control due to bending load ■ Easy maintenance ■ Control everything without reducing speed *For detailed data, please download the PDF or contact us!

• shaft

Until now, have you experienced issues like "wrinkles," "a little torn," or "a bit tighter" during slitting? With our friction shafts, you can achieve high-quality winding of metal foils, elastic sheets, special films, and more. Our in-house research and development has resulted in numerous achievements with low tension of 30N/m. We can also manufacture friction shafts for both clockwise and counterclockwise rotation, as well as those over 6 inches. With years of experience, we cater to the individual needs of each customer. 【Features】 ■ Accurate tension control ■ Low tension winding ■ Wide range control ■ Tension difference control for each ring ■ Tension fluctuation control due to bending load ■ Easy maintenance ■ Control everything without reducing speed *For detailed data, please download the PDF or contact us!

• Bag making machine/slitter
• roller
• shaft