サンスター技研 List of Products and Services

At Sunstar Engineering, we also solve issues related to the precision, cost, and lead time of finishing processes, which are challenges in cutting and grinding operations. We possess a wide range of equipment, including NC lathes, machining centers, and laser processing machines, and we have various technologies such as high-precision double-sided grinding at the μm level, pressing, and heat treatment, allowing us to provide consistent support from design and production to testing and analysis. 【Business Activities】 ■ Thick plate punching press ■ Heat treatment ■ Cutting ■ Grinding ■ Gear cutting ■ Coating 【Examples of Problem Solving】 By performing processes that are usually done separately on both sides simultaneously, we achieved high precision. This also led to cost reduction through a decrease in work hours.

• Processing Contract

At Sunstar Giken, we possess various technologies such as press processing, laser processing, heat treatment, and cutting/grinding, and we provide consistent support from design and production to testing, analysis, and evaluation. We own a 2000-ton press machine for press processing, capable of handling thick plates from 3 to 13 mm. Additionally, we have direct transactions with steel manufacturers, allowing us to procure thick plate materials. In cutting and grinding processing, we can process both sides of the workpiece simultaneously. We achieve high-precision processing at the micrometer level, which leads to cost reduction through labor savings. Furthermore, we conduct processing condition development using CO2 laser processing machines and are also challenging the establishment of technology for processing thick plates over 6 mm, so please feel free to consult us. 【We can solve the following issues】 ◎ We want to improve the precision of finishing processes and reduce costs. ◎ We want to punch press plates with a thickness of 13 mm before forging. ◎ We want to suppress press punching burrs and shorten the polishing process. *For more details about our technologies and equipment, please refer to our materials.

• Other machine tools

In this document, we introduce processing examples from our group company, Tsubamex Co., Ltd. We showcase examples of automotive parts such as charge pots and sunroofs, as well as heating components and construction hardware. We are also capable of manufacturing products that combine plastic with metal, establishing a consistent production system up to the assembly of finished products. [Contents (partial)] ■ Automotive parts ■ Heating components ■ Construction-related ■ Rice cookers ■ Slide rail parts ■ Drill chuck parts *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies
• Other processing machines
• Mold Design

Our group company, Tsubamex Co., Ltd., has a range of equipment that enables the manufacturing of high-tensile materials, difficult-to-form components, deep drawing processing of ferrous and non-ferrous metals, small-batch production of various types, and consistent plastic processing and production from molds. In the mold division's mold factory, we have high-speed machining centers (3300×1980×1000) and five-sided machining machines (2500×4000×800). In the processing division's press factory, we possess crank presses (40t to 400t) and servo presses (110t to 300t). The PDF document below provides an overview of our equipment, so please download and take a look. 【Main Equipment (Partial)】 <Mold Division> ■ Mold Factory - High-speed Machining Center (3300×1980×1000): 1 unit - Five-sided Machining Machine (2500×4000×800): 1 unit <Processing Division> ■ Press Factory - Crank Press (400t): 1 unit - Servo Press (300t): 1 unit *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies

At our group company, Tsubamex Co., Ltd., we own 16 molding machines ranging from 55 tons to 450 tons, enabling the production of a wide variety of products, both large and small. We offer extensive support for mass production and assembly of parts made from plastic resins (such as PP and ABS). In plastic molding processing, we can also accommodate insert and outsert molding, which combines plastic with metal components. We have earned trust through our cultivated technical skills and well-equipped facilities. 【Equipment】 ■ Progressive press line ■ Line pacer ■ Turret punching machine ■ Single-action press *For more details, please refer to the PDF materials or feel free to contact us.

• Press Dies

At our group company, Tsubamex Co., Ltd., we aim to achieve "ultra-short delivery times" for all types of mold making that break conventional wisdom. To this end, we have implemented optimization of the manufacturing line and strategic capital investment. We have reviewed and streamlined all processes of mold production by replacing the final finishing process with as much machining as possible and effectively utilizing the skills of mold craftsmen. As a result, we have achieved an ultra-short delivery time of one month from mold design to first press. 【Features】 ■ Plastic Molds - Introduction of the ultra-high-speed cutting machine "F-Mach," capable of precision cutting at 60,000 revolutions per minute. - Responding to the needs for high precision and high detail in plastic mold processing. *For more details, please refer to the PDF document or feel free to contact us.

• Mold Design
• Plastic Mould
• Other molds

We would like to introduce the "3D Design System" developed by our group company, Tsubamex Original Co., Ltd. The digitized design data is utilized for confirming work processes on the manufacturing floor and for automatic processing into NC data, enabling the practical application of a system that combines extensive scalability and flexibility, resulting in shorter lead times and high quality. It is possible to complete designs in just 1/5 the time compared to conventional 2D design. 【Features】 <Standard Parts Program> ■ Management of over 200 types of parts used in press molds and more than 600 types by standard ■ Creation of each part as a solid according to the designer's requirements ■ Capability to output various types of parts and flexibly construct molds *For more details, please refer to the PDF materials or feel free to contact us.

• 3D CAD
• 3D CAM

Our group company, Tsubamex Co., Ltd., began introducing NC machine tools and developing software in-house since the 1970s. We have successfully developed a 3D CAD/CAM system and carried out large-scale customization of the French-made 3D design software "CATIA." By putting our unique system into practical use, we shifted all tasks that do not truly require human hands to machines and systems, achieving short delivery times and high-quality mold production. The "Tsubamex brand," which has gained significant trust from the industry, is now embarking on new challenges on a global scale. 【Main Equipment (Partial)】 < Mold Division > ■ High-speed machining center 3,300×1,980×1,000: 1 unit ■ 5-axis machining machine 3,000×5,000×800 and others: 7 units ■ Machining center: 4,260×3,150×1,650 and others: 9 units ■ Horizontal boring machine: 1 unit *For more details, please refer to the PDF document or feel free to contact us.

• Press Dies

Our company possesses various technologies such as press processing, heat treatment, and cutting/grinding, and we provide consistent support from design and production to testing and analysis. In press processing, we can handle thick plates ranging from 3 to 13 mm, and we have a 2000-ton press machine available. We also procure thick plate materials through direct transactions with steel manufacturers. In cutting and grinding processing, we can process both sides of the workpiece simultaneously. We achieve high-precision processing at the micron level, which contributes to cost reduction through labor savings. 【We can solve the following issues】 ◎ We want to improve the precision of finishing processes and reduce costs. ◎ We want to punch press plates with a thickness of 13 mm before forging. ◎ We want to suppress press cutting burrs and shorten the polishing process. *For more details about our technologies and equipment, please refer to our materials. Feel free to contact us with any inquiries.

• Other machine tools
• Processing Contract

Our company possesses various technologies such as press processing, heat treatment, and cutting/grinding, and we provide consistent support from design and production to testing and analysis. In press processing, we can handle thick plates ranging from 3 to 13 mm, and we have a 2000-ton press machine available. We also procure thick plate materials through direct transactions with steel manufacturers. In cutting and grinding processing, we can simultaneously process both sides of the workpiece. We achieve high-precision processing at the micron level, which contributes to cost reduction through labor savings. 【We can solve the following issues】 ◎ We want to improve the accuracy of finishing processes and reduce costs. ◎ We want to punch press plates with a thickness of 13 mm before forging. ◎ We want to suppress press punching distortion and shorten the polishing process. *For more details about our technologies and equipment, please refer to our materials. Feel free to contact us with any inquiries.

• Other machine tools
• Processing Contract

Our company possesses various technologies such as press processing, heat treatment, cutting, and grinding, and we provide consistent support from design and production to testing, analysis, and evaluation. We own a 2000-ton press machine capable of handling thick plates from 3 to 13 mm. Additionally, we have direct transactions with steel manufacturers, allowing us to procure thick plate materials. In cutting and grinding processing, we can process both sides of the workpiece simultaneously. We achieve high-precision processing at the micron level, which also leads to cost reduction through labor savings. 【We can solve the following issues】 ◎ We want to improve the precision of finishing processes and reduce costs. ◎ We want to purchase semi-finished materials processed from thick plate materials. ◎ We want to suppress press cutting burrs and shorten the polishing process. *For more details about our technologies and equipment, please refer to our materials. Feel free to contact us with any inquiries.

• Other machine tools
• Processing Contract

Our company possesses various technologies such as press processing, heat treatment, and cutting/grinding, and we provide consistent support from design and production to testing and analysis. In press processing, we can handle thick plates ranging from 3 to 13 mm, and we have a 2000-ton press machine available. Since we have direct transactions with steel manufacturers, we also procure thick plate materials. In cutting and grinding processing, we can process both sides of the workpiece simultaneously. We achieve high-precision processing at the micron level, which also leads to cost reduction through labor savings. 【We can solve the following issues】 ◎ We want to improve the precision of finishing processes and reduce costs. ◎ We want to perform press punching on materials with a thickness of 13 mm before forging. ◎ We want to suppress press punching burrs and shorten the polishing process. *For more details about our technologies and equipment, please refer to our materials. Feel free to contact us with any inquiries.

• Other machine tools
• Processing Contract

At Sunstar Engineering Co., Ltd., we possess various technologies such as cutting, grinding, pressing, and heat treatment, and we provide consistent support from design and production to testing and analysis. By processing both sides simultaneously, which is usually done separately, we have achieved high precision and reduced costs through shortened work hours. Prototype support is also available. Please feel free to consult us. 【Features】 ■ High-precision double-sided grinding at the μm level ■ Proven results in gear cutting for motorcycle sprockets and outboard motor gears ■ Numerous facilities including NC lathes, machining centers, and laser processing machines *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine elements
• Pipe Fittings
• Contract manufacturing

Our company consistently handles everything from the design and production of ring gears to testing and analysis. By proposing optimal shapes in response to customer requests, we have gained high trust. We have processing experience with diameters ranging from φ200 to 302 and plate thicknesses from 5.0 to 10.0. 【Features】 ■ Comprehensive support from design and production to testing and analysis ■ Proposing optimal shapes ■ Processing experience: φ200 to 302, plate thickness 5.0 to 10.0 【Applications】 ■ Outboard motors ■ Generators, etc. *For more details, please feel free to contact us.

• Drive system parts

Our company consistently handles everything from the design and production of motorcycle sprockets to testing and analysis. By proposing suitable shapes in response to customer requests, we have gained high trust. In addition to domestic motorcycle manufacturers in Japan, we are also adopted by major motorcycle manufacturers around the world, including those in North America, Europe, Southeast Asia, Central and South America, and India. [Features] ■ Comprehensive support from design and production to testing and analysis ■ Proposing suitable shapes in response to customer requests ■ Adopted by major motorcycle manufacturers worldwide *For more details, please feel free to contact us.

• Vehicle body parts

Our company consistently handles the design, production, testing, and analysis of disc brakes for motorcycles, earning high trust by proposing suitable shapes in response to customer demands. Additionally, they are currently used in EVs, which have a high demand for lightweight components. 【Features】 ■ Increased braking force due to high precision ■ Comprehensive support from design and production to testing and analysis ■ Proposing suitable shapes in response to customer demands ■ Used in EVs with a high demand for lightweight components *For more details, please feel free to contact us.

• Vehicle body parts

Sunstar is actively advancing its unique technology development to respond to the increasingly sophisticated and diverse domestic and international users, and is committed to the development of new products and technologies. Through unique testing and evaluation techniques from planning, research, and development, we maintain high quality and high performance, providing safety and peace of mind to each user. Starting with press processing technology, supported by advanced mold manufacturing technology, as well as cutting, polishing, and hardening techniques, we consistently produce products that meet various needs through our unique processing technologies and excellent production facilities. 【Features】 ■ Utilization of cutting-edge research facilities to develop high-functionality and high-quality products ■ Unique processing technologies and excellent production facilities ■ Consistent production ■ Noise reduction, durability, and weight reduction of sprockets ■ Our proprietary testing machines and evaluation techniques *For more details, please refer to the PDF materials or feel free to contact us.

• Drive system parts
• Other Auto Parts

At Sunstar Engineering, we offer cutting services for materials such as carbon steel, stainless steel, and aluminum. We are equipped with machining centers and NC lathes, allowing us to handle high-precision products and complex shapes. Our excellent production technology has led to the creation of sprockets for motorcycles and disc brakes, which are adopted not only by all motorcycle manufacturers in Japan but also by major motorcycle manufacturers worldwide, including those in North America, Europe, Southeast Asia, Latin America, and India. 【Features】 ■ High-precision machining using NC lathes and machining centers ■ Wide range of steel types including carbon steel, stainless steel, and aluminum ■ Capable of producing high-precision products and complex shapes ■ Recommended for those seeking machining of complex shapes *For more details, please refer to the PDF document or feel free to contact us.

• Drive system parts

At Sunstar Giken, we offer a "Gear Cutting Service." We are capable of machining gears such as sprockets and gears. Our company produces sprockets for motorcycles and ring gears for outboard motors, and we address issues such as noise, durability, and weight reduction of sprockets, as well as squeaking of discs, WET performance, and thermal distortion, by utilizing our unique testing machines and evaluation techniques to create more reliable products. [Overview] ■ Gear machining for sprockets and marine gears *For more details, please refer to the PDF materials or feel free to contact us.

• Drive system parts
• Other Auto Parts

At Sunstar Giken, we offer stainless steel "grinding services." We respond to high-precision orders using double-sided grinding machines and parallel plane honing machines. Our company consistently produces products tailored to customer needs through our press processing technology, advanced mold manufacturing techniques that support it, and unique processing technologies such as cutting, grinding, and hardening, along with excellent production equipment. 【Features】 ■ Precision at the micron level ■ Capability to handle high-precision orders ■ Recommended for those seeking high precision in flatness and parallelism *You can also check our available equipment via PDF download. Please feel free to contact us.

• Drive system parts

At Sunstar Giken, we offer a "High-Frequency Hardening Service." We provide uniform heat treatment without hardness variation. Heat treatment can be performed only on the necessary parts, rather than the entire component. To respond to the increasingly sophisticated and diverse needs of domestic and international users, we are vigorously advancing our unique technology development and actively working on the development of new products and technologies. From planning, research, and development to our proprietary testing and evaluation technologies, we maintain high quality and high performance, providing safety and peace of mind to each user. [Overview] ■ Uniform heat treatment without hardness variation ■ Heat treatment can be performed only on the necessary parts, rather than the entire component *For more details, please refer to the PDF materials or feel free to contact us.

• Drive system parts
• Other Auto Parts

Our company has a blanking line capable of handling 1,000 to 2,000 tons, and we perform thick plate punching on a wide range of steel types, including carbon steel, stainless steel, and aluminum. We can punch up to 13mm, allowing for thick plate processing. By directly trading with steel manufacturers, we can procure a wide variety of steel types. We also offer the sale of blank materials and semi-finished products. This is recommended for those considering cost reduction through gas cutting or laser cutting followed by pressing. 【Features】 - Punching capability up to 13mm - Direct transactions with steel manufacturers - Procurement of a wide range of steel types - Ownership of a 2,000-ton blanking line - Sale of blank materials and semi-finished products available *For more details, please refer to the PDF document or feel free to contact us.

• Drive system parts

At Sunstar Giken, we have achieved integrated in-house production that includes press processing and cutting. Our uniquely developed advanced production processing technology, supported by our research and development capabilities, is consolidated here. This high level of expertise and technical skill is our strength. By expanding a wide range of products, we are able to enhance brake functionality and achieve high safety in our developments. 【Features】 ■ Achieved integrated in-house production ■ Uniquely developed advanced production processing technology ■ High level of expertise and technical skill ■ Wide range of product offerings *For more details, please refer to the PDF document or feel free to contact us.

• Drive system parts
• Other Auto Parts