マエダ List of Products and Services

Our company offers a one-stop contract processing service that can handle machining, hard chrome plating, and polishing. In addition to new processing of various testing machines and mold components, we also accommodate partial processing, scratch repairs, and plating repairs. We can reduce the hassle, cost, and lead time of orders, and since processing can be completed in our own factory, we also contribute to labor-saving in quality and delivery management. In January 2023, we plan to introduce a 5-axis machining center to better meet a wider range of needs. 【Features】 - Low cost and short lead time due to no intermediate margins and no waste in logistics - Capable of processing hydraulic equipment such as cylinders and piston rods - Able to handle processing of special steel materials and requests for small quantities of various parts - Capable of regeneration and repair of shafts and rods with scratches or dents - Providing high-quality products with a quality management system based on ISO 9001 *For more details, please refer to the PDF document. Feel free to contact us with any inquiries.

• Processing Contract

- By manually masking the areas that are not to be hard chrome plated, it is possible to plate not only the entire product but also just specific external and internal parts, allowing us to customize the plating process according to customer requests. - For complex shapes with uneven surfaces, such as molds, we can devise and create electrodes to apply hard chrome plating. - Our company also offers machining and polishing services, enabling us to smoothly complete the product. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract
• Surface treatment contract service

- By manually masking areas that are not to be hard chrome plated, it is possible to plate not only the entire product but also just specific external or internal parts, allowing us to customize the plating process according to customer requests. - For complex shapes with uneven surfaces, such as molds, we can devise and create electrodes to apply hard chrome plating. - Our company also offers machining and polishing services, enabling us to smoothly complete the products. *If you would like more details or have any requests, please feel free to contact us.*

• Processing Contract
• Surface treatment contract service

- When overhauling hydraulic cylinders and similar components, there may be scratches or dents on the shafts or rods upon disassembly. Our company can take such items from customers, remove the scratches and dents through polishing, and then re-plate them to restore them to their original dimensions. We can also perform re-polishing and re-plating on products other than shafts, rods, and hydraulic-related items. - Our company is equipped with machining facilities, so we can also make corrections and additional processing outside of the plating areas. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract
• Surface treatment contract service

The grinding machine is a device that processes workpieces by applying a rotating grinding wheel, and it offers better dimensional accuracy and surface roughness compared to lathe and machining processes. Our company owns three cylindrical grinding machines, one surface grinding machine, and one cylindrical buffing machine. [Cylindrical Grinding Machine] The cylindrical grinding machine is mainly used as a process before and after hard chrome plating. It processes surfaces suitable for plating as a pre-plating operation and finishes dimensions and the plated surface after plating. In the repair work of rods and shafts, it is necessary to grind off the existing plated areas, but by simultaneously grinding and removing scratches during this process, it is possible to regenerate a clean surface without changing the dimensions. [Cylindrical Buffing Machine] It is capable of achieving a glossy, mirror-finish on the surface of the material. We perform this after chrome plating, achieving "a glossy and beautiful surface (improved surface roughness)," "enhanced lubricity," and "removal of fine burrs." For products that are not cylindrical, such as those with uneven surfaces or complex shapes, we perform surface finishing using hand buffing after plating. *Our company also offers machining and hard chrome plating services, allowing for a smooth completion of products. Please feel free to contact us.

• Hydraulic Equipment
• Processing Contract
• Syringe Pump

We have the following measuring instruments available, which enable us to achieve the quality required for our products. 【Micrometer】 - Mainly for external diameter measurement. In addition to the standard type, we also have a "blade type" for measuring grooves, a "caliper type" for areas that cannot be measured with the standard type, and a "effective diameter micrometer" used during external thread processing. 【Cylinder Gauge】 - For internal diameter measurement. 【Surface Roughness Tester】 - Used for areas where surface roughness is specified in the product. 【Three-Dimensional Measuring Machine】 - Capable of measuring not only dimensions but also "geometric tolerances" such as perpendicularity and concentricity, which are difficult to measure with manual measuring instruments. Each inspection measuring instrument is regularly calibrated to maintain measurement accuracy.

• Processing Contract

Q. What is the appropriate film thickness for a well-balanced hard chrome plating treatment? A. I believe a film thickness of approximately 20μm to 150μm is reasonable for hard chrome plating. Q. Is re-plating possible? A. It is possible depending on the situation. 1. Clarify the treated material. 2. Check the plating film. 3. Decide whether to strip the plating or remove it by polishing, using a method suitable for the material. Considering the above, we will proceed with re-plating. Q. Regarding burrs after hard chrome plating treatment. A. It depends on the shape and plating thickness, but creating a dedicated jig may resolve the issue. It is also necessary to select a vendor who can manage the plating solution and calculate the current density. Q. What is the film thickness when performing buff finishing after hard chrome plating treatment? A. The thickness of the hard chrome plating film, the surface roughness after buff finishing, and the purpose for which hard chrome plating was selected will vary depending on your company's requirements.

• Processing Contract

Q. What are the dimensions of the hard chrome plating tank? A. There are two tanks: one measuring 1.8m in width, 3.8m in length, and 2.4m in depth, and another measuring 1m in width, 2m in length, and 1.5m in depth. Q. How thick can hard chrome plating be applied? A. It depends on the customer's request, but typically we perform standard plating (dimension matching) and thicker plating. There are also methods to finish by performing other processes (polishing). Q. Can it be applied to any material? A. Mainly to iron, cast iron, stainless steel, etc., but for more details, we can provide answers via email or phone. Q. Can hard chrome plating be applied partially? Is it only for new products? A. It can be applied partially. Additionally, we welcome not only new products but also repair items. We also apply it to various shapes of molds. Q. Sometimes hard chrome plating appears milky white; why does this happen? A. If the plating conditions are the cause, it may occur when there is an imbalance between the current and temperature. Additionally, the shape can also lead to a milky white appearance.

• Processing Contract

- The machining center is a machine that excels at processing fixed workpieces by rotating tools (such as drills). - We design and manufacture jigs to achieve high repeatability in processing. - Our company is also capable of hard chrome plating and polishing, allowing for a smooth completion of products. *If you would like to know more details or have any requests, please feel free to contact us.*

• Processing Contract

- A lathe rotates the workpiece and applies a tool to it, allowing for processes such as outer diameter and inner diameter machining, groove machining, and screw machining. - Our company has four CNC lathes (three horizontal and one vertical) and four general-purpose lathes. Instead of the commonly used "three-jaw scroll chuck," all our lathes are equipped with "single-action four-jaw chucks," enabling various types of machining. <Advantages of single-action four-jaw chucks compared to three-jaw scroll chucks> - The jaws that secure the workpiece move independently, allowing for the fixation of not only round shapes but also square shapes, and enabling machining of eccentric parts of shafts. - The position of the jaws can be finely adjusted, allowing for precise machining of geometric tolerances such as parallelism, perpendicularity, and concentricity. - While three-jaw scroll chucks require the preparation of "soft jaws" for each workpiece and machining process, single-action four-jaw chucks eliminate this need, making them suitable for low-volume, high-variety production rather than mass production. - Our company also offers hard chrome plating and polishing services, allowing for smooth completion of products. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract

Our company offers a one-stop contract processing service that can handle machining, hard chrome plating, and polishing. In addition to new processing of various testing machines and mold components, we also accommodate partial processing, scratch repairs, and plating repairs. We can reduce the hassle, cost, and delivery time of orders, and since processing can be completed in our own factory, we contribute to labor-saving in quality and delivery management. In January 2023, we plan to introduce a 5-axis machining center to better meet a wider range of needs. 【Features】 ■ Low cost and short delivery time due to no intermediate margins and no waste in logistics ■ Capable of processing hydraulic equipment such as cylinders and piston rods ■ Accommodates processing of special steel materials and requests for small quantities of various parts ■ Supports regeneration and repair of shafts and rods with scratches or dents ■ Provides high-quality products with a quality management system based on ISO9001 *For more details, please refer to the PDF document. Feel free to contact us with any inquiries.

• Processing Contract

Our company is engaged in precision machining and hard chrome plating in Yamato City, Kanagawa Prefecture. While many other companies specialize in either "machining only" or "plating only," we offer both services on the same premises, allowing for a consistent system from "material procurement to processing and quality inspection." This eliminates the hassle of "requesting machining from one company and then transferring it to a plating company afterward," reducing waste such as "communication efforts between companies," "transportation time for goods," and "inconsistencies in quality control among companies," thereby contributing to reduced production costs. Additionally, we can accommodate small-batch, diverse processing needs, and we are happy to handle prototype machining and one-off items. We also have connections with partner companies, enabling us to provide surface treatments such as heat treatment, blackening, and high-frequency hardening. *If you would like more details or have any requests, please feel free to contact us.*

• Processing Contract

- The lathe rotates the workpiece and applies a tool to it, allowing for processes such as outer diameter and inner diameter machining, groove machining, and screw machining. - Our company has four CNC lathes (three horizontal and one vertical) and four general-purpose lathes. Instead of the commonly used "three-jaw scroll chuck," all our lathes are equipped with "single-action four-jaw chucks," enabling various types of machining. <Advantages of single-action four-jaw chucks compared to three-jaw scroll chucks> - Each jaw moves independently to secure the workpiece, allowing for the fixation of not only round shapes but also square shapes, and enabling machining of eccentric parts of shafts. - The position of the jaws can be finely adjusted, allowing for precise machining of geometric tolerances such as parallelism, perpendicularity, and concentricity. - While three-jaw scroll chucks require the preparation of "soft jaws" for each workpiece and machining process, single-action four-jaw chucks eliminate this need, making them suitable for small-batch, varied production rather than mass production. - Our company is also capable of hard chrome plating and polishing, allowing for smooth completion of products. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract

- The machining center is a machine that excels at processing angular workpieces by rotating tools (such as drills) to work on fixed workpieces. - We design and manufacture jigs to achieve high repeatability and precision in processing. - Our company also offers hard chrome plating and polishing services, allowing for a smooth completion of products. *If you would like to know more details or have any requests, please feel free to contact us.*

• Processing Contract

The grinding machine is a machine that processes workpieces by applying a rotating grinding wheel to them, and it offers better dimensional accuracy and surface roughness compared to lathe machining and machining processes. Our company owns three cylindrical grinding machines, one surface grinding machine, and one cylindrical buffing machine. [Cylindrical Grinding Machine] The cylindrical grinding machine is mainly used as a process before and after hard chrome plating. It prepares surfaces suitable for plating as a pre-plating process and finishes the dimensions and surface after plating. In the repair work of rods and shafts, it is necessary to grind off the existing plated areas, but by simultaneously grinding and removing scratches during this process, it is possible to regenerate a clean surface without changing the dimensions. [Cylindrical Buffing Machine] It is capable of achieving a glossy, mirror-like finish on the surface of materials. In our company, this is done after chrome plating, achieving "a shiny and beautiful surface (improved surface roughness)," "enhanced lubricity," and "removal of fine burrs." For products that are not cylindrical and have uneven surfaces or complex shapes, surface finishing is performed using hand buffing after plating. *Our company also offers machining and hard chrome plating, allowing for smooth completion of products. Please feel free to contact us.

• Hydraulic Equipment
• Processing Contract
• Syringe Pump

- When overhauling hydraulic cylinders and similar components, there may be scratches or dents on the shafts or rods upon disassembly. Our company can take such items from customers, remove the scratches and dents through polishing, and then re-plate them to restore them to their original dimensions. We can also perform re-polishing and re-plating on products other than shafts, rods, and hydraulic-related items. - Our company is equipped with machining facilities, so we can also make corrections and additional machining outside of the plating areas. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract
• Surface treatment contract service

- Round and angular items, inner and outer diameters, partial plating is also possible. - Plating is done with a precision of 1/100 mm. Unless specifically required, a plating thickness of about 20 to 30 μm is sufficient. We can also consider options based on your application. - Our company is capable of machining and polishing, allowing for a smooth completion of products. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract
• Surface treatment contract service

- By manually masking areas that are not to be hard chrome plated, it is possible to plate not only the entire product but also specific external and internal parts, allowing us to customize the plating process according to customer requests. - For complex shapes with uneven surfaces, such as molds, we can devise and create electrodes to apply hard chrome plating. - Our company also offers machining and polishing services, enabling us to smoothly complete the products. *If you would like more details or have any requests, please feel free to contact us.

• Processing Contract
• Surface treatment contract service

Q. What are the dimensions of the hard chrome plating tank? A. We have two tanks: one measuring 1.8m in width, 3.8m in length, and 2.4m in depth, and another measuring 1m in width, 2m in length, and 1.5m in depth. Q. What is the maximum thickness that can be applied for hard chrome plating? A. It depends on the customer's request, but typically we perform standard plating (dimensioning) and thick plating. There are also methods to finish by performing other processes (polishing). Q. Can it be applied to any material? A. Mainly to iron, cast iron, stainless steel, etc., but for more details, we will respond via email or phone. Q. Can hard chrome plating be applied partially? Is it only for new products? A. It can be applied partially. Additionally, we welcome not only new products but also overhauled items. We apply it to various shapes of molds as well. Q. Sometimes the color tone of hard chrome plating appears milky white; why does this happen? A. If the plating conditions are the cause, it may occur when there is a poor balance between temperature and current. Additionally, the shape can also lead to a milky white appearance.

• Processing Contract

Q. What is the appropriate film thickness for balanced hard chrome plating treatment? A. I believe a film thickness of approximately 20μm to 150μm is reasonable for hard chrome plating treatment. Q. Is re-plating possible? A. It is possible depending on the situation. 1. Clarify the treated material. 2. Check the plating film. 3. Decide whether to strip the plating or remove it by polishing using an appropriate method for the material. Considering the above, we will proceed with re-plating. Q. Regarding burrs after hard chrome plating treatment. A. It depends on the shape and plating thickness, but it can sometimes be resolved by creating a dedicated jig. It is also necessary to select a vendor that can manage the plating solution and calculate current density. Q. What is the film thickness when performing buff finishing after hard chrome plating treatment? A. The thickness of the hard chrome plating film, surface roughness after buff finishing, and the purpose for which hard chrome plating was selected will vary depending on your company's preferences.

• Processing Contract

We would like to introduce "Precision Metal Machining" and "Hard Chrome Plating." Our company is capable of both regeneration processing and new processing in the fields of machining and plating. Additionally, we provide integrated production from polishing to assembly and quality inspection. We also accept orders for machining only or plating only. Please feel free to consult us about anything! 【Features】 ■ Hand-made masking for plating ■ Support for machining only or plating only ■ Accommodations for partial plating requests ■ Capable of regeneration processing and new processing *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Processing Contract

The hard chrome plating tanks are two tanks measuring 2m in width, 4m in length, and 3m in depth, and 1m in width, 2m in length, and 1.5m in depth. The thickness of the hard chrome plating is calculated by measuring the dimensions before and after plating. The materials with production records in hard chrome plating include 'S45C, SS, SNCM, SKS, SUS, SCM, FCD,' among others. For other materials, please contact us. Partial hard chrome plating can be performed. Masking tape is wrapped around the areas that will not be plated to prevent electrodeposition. Recently, our hardness measurement results show that 'SCM440 is 1004-1086 and S45C is 1049-1052.'

• Surface treatment contract service

Our company offers "square work processing" using horizontal and vertical machining centers. We have one gantry machining center and two horizontal machining centers. Additionally, we have general-purpose machines such as milling machines and radial drilling machines. These machines, which excel at processing square work, rotate tools (such as drills) to process fixed workpieces. We design and manufacture jigs to achieve high repeatability and precision in machining. 【Available Processing Sizes】 ■ Gantry Table: 2000×1000, Height 800 ■ Horizontal Table 1: 400×400, Height 400, 2 pallets ■ Horizontal Table 2: 1600×1800 *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

We offer "round machining" services. We have 4 CNC lathes and 4 general-purpose lathes. These machines are adept at machining round objects by rotating the workpiece and using a fixed cutting tool. Our company uses a 4-jaw chuck, allowing us to perform eccentric machining and internal diameter machining of square objects as well. With years of expertise in precision machining of hydraulic vibration devices, we have earned the trust and satisfaction of our customers. Please feel free to contact us when you need our services. 【Machining Capabilities】 ■ CNC Lathe: Overall length 100–2200mm, Diameter 20–450mm ■ General-purpose Lathe: Overall length 50–4000mm, Diameter 15–800mm *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract