Information
No. 261號, Jiujia 2nd Rd, Houli District, Taichung City, Taiwan 421
+886 4 2557 8474
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Overview
- Summary
- TONG YI MACHINERY INC. (Dowell) is a specialized surface grinder manufacturer established in 1996, operating under the business philosophy of 'Keep & Improving'. The company produces a wide range of grinding machines, including manual, semi-auto, auto, NC, CNC, double column, and rotary surface grinders. It continuously dedicates to R&D for developing better grinders by actively listening to customer needs. Starting with the precision mold, electronics, and machine tool industries, the company has recently expanded its business into the semiconductor sector.TONG YI MACHINERY INC. (Dowell) is a specialized surface grinder manufacturer established in 1996, operating under the business philosophy of 'Keep & Improving'. The company produces a wide range of grinding machines, including manual, semi-auto, auto, NC, CNC, double column, and rotary surface grinders. It continuously dedicates to R&D for developing better grinders by actively listening to customer needs. Starting with the precision mold, electronics, and machine tool industries, the company has recently expanded its business into the semiconductor sector.
- Key Products/Technologies
- Dowell manufactures a diverse range of grinding machines, including manual, semi-auto, auto, NC, CNC, double column, and rotary surface grinders. Key product models include the 3-axis Automatic Surface Grinder DSG-820~1632CAHD, NC/CNC High Precision Grinders DSG-1640/1660 NC/CNC, High Precision Surface Grinders DSG-820~2480ANDⅡ/CNC, and HR/VR series Horizontal/Vertical Rotary Grinders.Dowell manufactures a diverse range of grinding machines, including manual, semi-auto, auto, NC, CNC, double column, and rotary surface grinders. Key product models include the 3-axis Automatic Surface Grinder DSG-820~1632CAHD, NC/CNC High Precision Grinders DSG-1640/1660 NC/CNC, High Precision Surface Grinders DSG-820~2480ANDⅡ/CNC, and HR/VR series Horizontal/Vertical Rotary Grinders.
- The DSG-820~1632CAHD model features a high-quality Meehanite class FC cast iron structure, a direct-type spindle with high-precision P4 bearings and a V3 grade spindle motor, and a double V-designed saddle guideway coated with Turcite-B and hand-scraped. It also includes an auto lubrication system, plunge and surface grinding modes, and vertical feed driven by step & AC servo motors.The DSG-820~1632CAHD model features a high-quality Meehanite class FC cast iron structure, a direct-type spindle with high-precision P4 bearings and a V3 grade spindle motor, and a double V-designed saddle guideway coated with Turcite-B and hand-scraped. It also includes an auto lubrication system, plunge and surface grinding modes, and vertical feed driven by step & AC servo motors.
- NC/CNC High Precision Grinders are characterized by a 3-axis system driven by high-precision ballscrews and AC servo motors, high-stiffness linear roller guideways, a high-precision spindle, and a closed-type waterproof guard design. These machines offer user-friendly control functions through FANUC, Mitsubishi, SYNTEC, and their proprietary AND-II operating systems.NC/CNC High Precision Grinders are characterized by a 3-axis system driven by high-precision ballscrews and AC servo motors, high-stiffness linear roller guideways, a high-precision spindle, and a closed-type waterproof guard design. These machines offer user-friendly control functions through FANUC, Mitsubishi, SYNTEC, and their proprietary AND-II operating systems.
- Rotary Surface Grinders are designed to meet various precision grinding requirements with both horizontal and vertical spindle configurations. They ensure vibration-free rotary movements and superior surface finishes through high-quality castings and vibratory stress-relieving treatment. Options include automatic lubrication systems, electromagnetic chucks, online wheel balancers, and Mitsubishi servo upgrades.Rotary Surface Grinders are designed to meet various precision grinding requirements with both horizontal and vertical spindle configurations. They ensure vibration-free rotary movements and superior surface finishes through high-quality castings and vibratory stress-relieving treatment. Options include automatic lubrication systems, electromagnetic chucks, online wheel balancers, and Mitsubishi servo upgrades.
- Core Advantages
- Utilization of high-quality Meehanite class FC cast iron structures, ensuring high rigidity and stability crucial for precision grinding operations.Utilization of high-quality Meehanite class FC cast iron structures, ensuring high rigidity and stability crucial for precision grinding operations.
- High precision and repeatability achieved through the application of advanced technologies such as high-precision P4 bearings, V3 grade spindle motors, precision ballscrew and AC servo motor drive systems, and high-stiffness linear roller guideways.High precision and repeatability achieved through the application of advanced technologies such as high-precision P4 bearings, V3 grade spindle motors, precision ballscrew and AC servo motor drive systems, and high-stiffness linear roller guideways.
- A comprehensive range of grinding machines, from manual to fully automatic, NC, and CNC, providing customized solutions for diverse customer production requirements.A comprehensive range of grinding machines, from manual to fully automatic, NC, and CNC, providing customized solutions for diverse customer production requirements.
- Continuous investment in R&D to develop new materials and process technologies, focusing on improving product performance and efficiency to meet market demands.Continuous investment in R&D to develop new materials and process technologies, focusing on improving product performance and efficiency to meet market demands.
- Autonomy in quality control through the operation of its own specialized Meehanite cast iron foundry (Tung An Enterprise Co., Ltd.), coupled with a customer-centric approach to provide tailored solutions.Autonomy in quality control through the operation of its own specialized Meehanite cast iron foundry (Tung An Enterprise Co., Ltd.), coupled with a customer-centric approach to provide tailored solutions.
- Target Industries
- Aerospace IndustryAerospace Industry
- Machinery IndustryMachinery Industry
- Automotive IndustryAutomotive Industry
- Mold IndustryMold Industry
- Semiconductor Industry (including advanced material processing like ceramics, quartz, and silicon wafers)Semiconductor Industry (including advanced material processing like ceramics, quartz, and silicon wafers)
- Major Markets
- Taiwan (Headquarters)Taiwan (Headquarters)
- Germany (Participation in EMO Hannover exhibition)Germany (Participation in EMO Hannover exhibition)
- United States (Product supply and service through GMSi Group Inc.)United States (Product supply and service through GMSi Group Inc.)
- Certifications/Patents
- Full autonomy in quality control by operating its own specialized Meehanite cast iron foundry, Tung An Enterprise Co., Ltd.Full autonomy in quality control by operating its own specialized Meehanite cast iron foundry, Tung An Enterprise Co., Ltd.
- Possession of CE (Conformity European) certification and D-U-N-S® Registered™ certification.Possession of CE (Conformity European) certification and D-U-N-S® Registered™ certification.
- Awarded a Gold Award at the China International Patent Technology and Products Fair.Awarded a Gold Award at the China International Patent Technology and Products Fair.
- Acquisition of technical certifications from several leading semiconductor enterprises.Acquisition of technical certifications from several leading semiconductor enterprises.
- Holding certified patented technology in the field of precision grinding machines.Holding certified patented technology in the field of precision grinding machines.
Introduction
Location
No. 261號, Jiujia 2nd Rd, Houli District, Taichung City, Taiwan 421
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