有川製作所 List of Products and Services

Our company manufactures metal parts for industrial machinery. We have an integrated production system in-house, from mold design and manufacturing to press processing. We solve our customers' problems with the technology and ideas we have cultivated so far. ■ For those who are facing such issues Considering a transition to press processing. Struggling with process design for mass-produced items. Here are some technologies and examples that can help solve your problems. ■ Processing Technology: "R Press Processing" Forms a smooth cross-sectional shape and is utilized for products requiring R-shaped quality and as a safety measure during assembly. ■ Proposal Example: "Is it possible to mass-produce a large diameter ring of 400Φ made by cutting at a low cost?" By transitioning from cutting processing to press processing, it is possible to reduce costs and achieve mass production without compromising quality. *For more details, please feel free to contact us.

• Processing Contract

Our company specializes in the design and manufacturing of metal press processing. We started our mold external sales business in October 2022. One of our features is the conversion of processing methods. By changing products that were previously machined to press processing, we have achieved cost reduction and a decrease in man-hours. We excel in precision press processing and have successfully produced products with strict tolerances. We also possess the technical capability to handle R-forming and all-shear processing. With 35 years of experience in mold manufacturing, we respond to our customers' challenges and requests with the technology we have cultivated in-house, providing optimal molds. We can manufacture molds for both progressive and single-operation types, with processing tonnage of up to 200 tons. 【What We Can Achieve】 ■ "All-shear processing" that realizes beautiful product cross-sections ■ "R-forming" that creates smooth shapes ■ Solving customer challenges with our cultivated technology and ideas *For more details, please refer to the PDF materials or feel free to contact us.

• Other metal materials
• Mold Design
• Processing Contract

Our company has been involved in the production of textile machine parts for many years. Since a smooth cross-sectional shape that does not cut the thread is required for textile machine parts, our unique mold technology has been developed. Currently, we provide this technology to various fields, including machine tool parts and mounting machine parts. By manufacturing complex three-dimensional shapes using die casting and machining through press processing, we can achieve reduced lead times and lower production costs. Additionally, by developing and manufacturing automation systems and automatic machines in-house, we can offer small-lot, diverse production with short delivery times. 【Features】 - Possible to reduce lead times and production costs - In-house integrated production system from mold to press - Proposing process designs suitable for customer product requirements *For more details, please refer to the related links or feel free to contact us.

• Press Dies

Ariwaka Manufacturing Co., Ltd. produces metal parts for industrial machinery. We solve our customers' problems with our cultivated technology and ideas, offering "full shear processing" to achieve beautiful product cross-sections and "R pressing" to create smooth shapes. We are also promoting automation systems utilizing robots, aiming to create an exciting workplace by automating processing and inspection. Additionally, we have started selling molds that incorporate user feedback. We can manufacture molds for both progressive and single-stroke types, with processing tonnage of up to 200 tons. 【What We Can Achieve】 ■ "Full shear processing" to achieve beautiful product cross-sections ■ "R pressing" to create smooth shapes ■ Solving our customers' problems with our cultivated technology and ideas *For more details, please refer to the PDF document or feel free to contact us.

• Other metal materials
• Mold Design
• Processing Contract

Our company has been involved in the production of textile machine parts for many years. Since a smooth cross-sectional shape that does not cut the thread is required for textile machine parts, our unique mold technology has been developed. Currently, we provide this technology to various fields, including machine tool parts and assembly machine parts. This time, we would like to introduce one of those technologies: "Method Conversion to Pressing." By producing complex three-dimensional shapes that are typically made through die casting and machining using press processing, we aim to reduce lead times and manufacturing costs. 【Features】 - Possible to reduce lead times and manufacturing costs - In-house integrated production system from mold to pressing - Proposing suitable process designs that meet customer product requirements *For more details, please refer to the related links or feel free to contact us.

• Press Dies

Our company has been involved in the production of textile machine parts for many years. Since a smooth cross-sectional shape that does not cut the thread is required for textile machine parts, our unique mold technology has been developed. Currently, we provide this technology to various fields, including machine tool parts and assembly machine parts. This time, we would like to introduce one of those technologies, "R pressing." By applying "R pressing" to round the edges of products, we create a smooth cross-sectional shape, which is utilized not only for products that require R shape quality but also as a safety measure during assembly. 【Features】 ■ Formation of a smooth cross-sectional shape through "R pressing" ■ In-house integrated production system from mold to pressing ■ Proposal of process design suitable for customer product requirements *For more details, please refer to the related links or feel free to contact us.

• Press Dies

Our company has been involved in the production of textile machine parts for many years. Since a smooth cross-sectional shape that does not break when in contact with thread is required for textile machine parts, our unique mold technology has been developed. Currently, we provide this technology to various fields, including machine tool parts and assembly machine parts. This time, we would like to introduce one of those technologies: "full shear processing with conventional pressing." By devising the clearance of the mold, full shear processing is possible. It minimizes burrs and deformation, achieving a finish similar to that of machining. 【Features】 - Full shear processing is possible by devising the clearance of the mold. - Minimizes burrs and deformation, allowing for a finish similar to machining. - In-house integrated production system from mold to pressing. - We propose process designs suitable for our customers' product requirements. *For more details, please refer to the related links or feel free to contact us.

• Press Dies

At Arikawa Manufacturing Co., Ltd., we are engaged in the development and production of automation systems and automated machines to address challenges such as improving productivity and reducing labor. In "Automation and Labor Reduction of Press Processing," we manufacture our own work supply machines. The entire process from machining to inspection and packaging can be performed by robots. Additionally, to accommodate a production style of small lots and diverse varieties, we have made the robots movable rather than fixed in one position, allowing them to be utilized in various equipment. 【Examples of Initiatives (Partial)】 ■ Automation and Labor Reduction of Press Processing by Robots - In-house production of work supply machines - Robots perform the entire process from machining to inspection and packaging ■ Connecting processes and reducing labor through collaboration between robots and automated transport systems - Automatic transport of products after press processing to deburring machines *For more details, please refer to the related links or feel free to contact us.

• Other industrial robots

Our processing technology, "Press Die," aims to shorten lead times and reduce manufacturing costs. By innovating the clearance of the die, we can achieve complete shear processing. We minimize burrs and deformation, allowing for finishes comparable to machining. Additionally, by applying "R pressing" to round the edges of the product, we create a smooth cross-sectional shape, which is utilized not only for products that require R shape quality but also as a safety measure during assembly. 【Features】 ■ Capable of shortening lead times and reducing manufacturing costs ■ Complete shear processing is possible by innovating the die clearance ■ Minimizes burrs and deformation, allowing for finishes similar to machining ■ Forms a smooth cross-sectional shape through "R pressing" ■ In-house integrated production system from die to pressing ■ Proposes suitable process designs to meet customer product requirements *For more details, please refer to the related links or feel free to contact us.

• Press Dies

We faced challenges in prototyping all components through machining considerations and in formulating cost reduction plans during the transition to mass production. As a solution, we introduced mechanical parts that attach to both ends of rollers guiding the fabric in the textile machinery (knitting machine). As a result, we reduced costs by changing the manufacturing method of the cam from "cutting" to "press punching." 【Benefits of Implementation】 ■ Cost reduction by changing the cam manufacturing method from "cutting" to "press punching" ■ Cost reduction by changing from welded assembly to press-fitting (press-fit strength adjusted by changing the fit and press-fit shape) ■ Cost reduction by changing surface treatment from "hammer tone" to "electro-galvanizing" *For more details, please feel free to contact us.

• Other machine elements

When processing 4 axes at 4 locations (M4) with a tapping machine, we faced challenges such as "the setup takes too much time when machining with Fanuc for small lot production" and "only skilled workers can perform the tasks." Therefore, we conducted the tapping position layout using a general-purpose air cylinder. Previously, we relied on the intuition of skilled workers for positioning, but now even novice workers can perform the machining, reducing stress and fatigue during work. [Challenges] ■ When processing 4 axes at 4 locations (M4) with a tapping machine: - Due to small lot production, the setup takes too much time when machining with Fanuc. - The indexing layout device is expensive, making it unprofitable for small lot production. - Only skilled workers can perform the tasks. *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals and process design for quality improvement and cost reduction through the transition from cutting to pressing methods. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. ■ Customer's Challenge In the yarn feeding section of weaving machines (the area where the yarn and components come into contact), a buffing process is applied, but the angle of the buffing varies, leading to unstable quality. ■ Solution We shaped a smooth form through full shear processing and R-press processing, and then applied barrel processing for production. The results of a one-month running test at the customer's site were favorable. By eliminating the buffing process, we achieved the following: ◎ Lead time: Reduced by 50% ◎ Cost: Product unit price decreased by 5% We also have many other case studies available on our website. *For more details, please download the PDF or feel free to contact us.

• Processing Contract

By incorporating the metal parts we manufacture, devices come to life, creating everyday items such as clothing and communication devices. Technology is evolving. We will create factories that utilize advanced technologies through automated processing by robots and the application of AI and IoT technologies. Please feel free to contact us when you need our services. 【Business Overview】 ■ Design and production of metal press molds, manufacturing of metal press processed products *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. 【Proposal Example 1】 ■Consultation Details - We want to reduce mold costs for mass production. - In the prototype, we performed R rounding and burr treatment on the inner and outer peripheries of the product using cutting and barrel polishing, but we want to reduce these processes. ■Proposal - By using molds with QDC, we can lower mold costs. - R rounding and burr treatment of the product's inner and outer diameters can be achieved by pressing, which crushes the edges and ensures the required product dimensions. ■Product Specifications - Material: SPCC - Size: Φ80.0 - Thickness: t1.45 *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing methods, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. 【Proposal Example】 ■Consultation Details - Due to intense market competition, there is a desire to reduce the price of parts. - The thread feeding section (where the thread contacts the part) has a buffing process, but the buffing angle varies, leading to unstable quality. ■Proposal - Forming a smooth shape through all shearing processing and R-press processing. - Manufacturing with barrel processing. - Eliminating the buffing process reduced lead time by 50% and product unit price by 5%. ■Product Specifications - Material: SUS304 - Size: W30.0×L51.0 - Thickness: t1.5 *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. Here are some examples of our proposals: 【Proposal Examples】 ■Consultation Details - I want to drill an M4 pilot hole in SS400 with a thickness of 8.0mm. - I want to drill a Φ2.0 hole in SPHC-P with a thickness of 4.5mm. - I need to know if both can be handled by pressing. ■Proposal - Small diameter holes up to 60% of the plate thickness can be processed by pressing. - By adding a guide to the punch tip, it can enter vertically without buckling during processing. - It is also possible under conditions where the hole position is close to the edge of the plate. *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. Here are some examples of our proposals: [Proposal Example] ■Consultation Details - Production of high-precision large diameter rings - Prototypes were made using cutting processes, but the cost is too high for mass production - Is it possible to produce them at a lower cost? ■Proposal - Created a notched mold that extends teeth in the X direction - Guaranteed inner and outer diameter tolerances of ±0.2 for large diameters (Φ400.0) - Achieved 192 equal divisions (division error ±0.2) - Initial costs reduced by 56% compared to conventional machining ■Product Specifications - Material: SPHC-P - Size: Φ400.0mm × t2.3mm *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing methods, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. 【Proposal Example】 ■Consultation Details - We want to reduce costs for existing products. - Is it possible to consolidate a two-part product into a single part? ■Proposal - Consolidation of a two-part product into a single part using plate forging technology. - Reduction of processing and assembly man-hours. ■Product Specifications - Material: S35C - Size: W15.0×L40.0 - Plate Thickness: t1.5 *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. 【Proposal Example】 ■Consultation Details - Many commercially available pillow blocks are expensive, so we want to manufacture parts that can standardize the specifications to reduce costs. ■Proposal - By converting the pillow block to a pressed design, we can reduce the unit price of the bracket part (excluding the bearing part). - By applying a bearing, we can launch the product and finish the inner diameter precision to 50.0μm through shaving. ■Product Specifications - Material: SPHC - Size: Φ94.0 - Thickness: t3.2 *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. Here are some examples of our proposals: 【Proposal Example】 ■Consultation Details - Currently producing cams (thickness 12.0mm) through cutting, but considering cost reduction. - There was a complaint about the press-fit part of the shaft cam coming loose. Although we implemented a screw fastening solution, it resulted in higher costs. ■Proposal - Transitioned from machining to pressing (thickness 9.0mm, all shear cutting) to achieve cost reduction. - Measures have been taken regarding the 3.0mm reduction in thickness. - Stabilized the joint between the cam and the shaft by adopting a D-cut design. - Eliminated bolt fastening to reduce man-hours. ■Product Specifications - Material: SPHC-P - Size: W24.0×L48.0 - Thickness: t9.0 *For more details, please feel free to contact us.

• Processing Contract

Our company offers proposals for quality improvement and cost reduction through the transition from cutting to pressing, as well as process design for mass production. We have a track record of solving various issues for customers in industries such as industrial machinery, machine tools, semiconductor manufacturing equipment, and construction components. 【Proposal Example 1】 ■Consultation Details - At what production volume does the cost advantage of pressing become apparent? - Can pressing meet the required quality standards? ■Proposal - We recommend considering pressing for lot sizes of approximately 200 to 1000 units per month. - The product cross-section achieves a beautiful finish similar to that of machining. - The corner burrs are minimal, and the fit tolerances guarantee the required dimensions. *For more details, please feel free to contact us.

• Processing Contract

Typically, when machining holes smaller than the plate thickness, cutting processes were generally used. At Arikawa Manufacturing, we achieve small-diameter holes up to about 60% of the plate thickness using press processing, even under conditions where the hole position is close to the edge of the plate. While it is easy to produce parts with 100% shear surfaces using the FB (Fine Blanking) technique and specialized equipment, it can be costly. Arikawa Manufacturing has made it possible to achieve 100% shear surface production in a single press operation. The "thread feeding" part, which is critical for textile machinery components, requires a high level of precision in finishing. By designing molds that consider the finishing of 100% shear surfaces and the workpiece movement during R pressing, we have achieved a smooth shape that does not break the thread when it passes through. Traditionally, thick gears could only be made through machining, but now they can be produced through pressing with a finish of 100% shear surfaces, high dimensional accuracy molds for leaf punching and holes, and precise riveting technology (core misalignment tolerance of H8 or less). For more details, please contact us or refer to our catalog.

• Processing Contract