Dong Joo Industrial, The Republic of Korea - Komachine Supplier Profile and Product List

- Dong Joo Industrial Co., Ltd. is a specialized manufacturer of steelmaking facility components established in 1989. The company focuses on producing parts for rolling, cement, and mineral processing equipment. Recognition as an excellent supplier in the materials division of POSCO, a cornerstone of national industry, highlights its product quality. A corporate capability centered on continuous research and development for superior product creation.Dong Joo Industrial Co., Ltd. is a specialized manufacturer of steelmaking facility components established in 1989. The company focuses on producing parts for rolling, cement, and mineral processing equipment. Recognition as an excellent supplier in the materials division of POSCO, a cornerstone of national industry, highlights its product quality. A corporate capability centered on continuous research and development for superior product creation.
- Key product lines include essential steelmaking components such as BUCKET (LINER), COKE VALVE, COKES CUTTER, MOLD, PROTECTION LINER, MOUTH RING, and DUMMY BAR [database].Key product lines include essential steelmaking components such as BUCKET (LINER), COKE VALVE, COKES CUTTER, MOLD, PROTECTION LINER, MOUTH RING, and DUMMY BAR [database].
- Production of specific facility parts like Gwangyang 1,2 Converter Bearing Housing (free side), Gwangyang 1,2 Steelmaking Fixed Side Converter Housing, and Pohang 2 Steelmaking Free Side Converter Housing [database].Production of specific facility parts like Gwangyang 1,2 Converter Bearing Housing (free side), Gwangyang 1,2 Steelmaking Fixed Side Converter Housing, and Pohang 2 Steelmaking Free Side Converter Housing [database].
- Roll Chocks for Rolling Mills feature technology applying wear-resistant and high-strength 550MPa Cr-Mo cast steel material.Roll Chocks for Rolling Mills feature technology applying wear-resistant and high-strength 550MPa Cr-Mo cast steel material.
- Mantle & Concave for Cone Crushers utilize a patented 'insert casting method'.Mantle & Concave for Cone Crushers utilize a patented 'insert casting method'.
- This core technology achieves high durability by inserting wear-resistant chromium steel inserts into a high-manganese steel base with excellent impact resistance.This core technology achieves high durability by inserting wear-resistant chromium steel inserts into a high-manganese steel base with excellent impact resistance.
- Rolling mill components such as COLD ROLLED BACK UP ROLL CHOCK ASS', COLD ROLLED BACK UP ROLL CHOCK, and THICK STEEL PLATE BACK UP ROLL CHOCK are also major production items [database].Rolling mill components such as COLD ROLLED BACK UP ROLL CHOCK ASS', COLD ROLLED BACK UP ROLL CHOCK, and THICK STEEL PLATE BACK UP ROLL CHOCK are also major production items [database].
- Securing differentiated competitive advantages based on continuous R&D investment and proprietary core technologies.Securing differentiated competitive advantages based on continuous R&D investment and proprietary core technologies.
- Proven quality and reliability through selection as an excellent supplier for POSCO's materials division and 15 consecutive years as a PHP (POSCO Excellent Partner).Proven quality and reliability through selection as an excellent supplier for POSCO's materials division and 15 consecutive years as a PHP (POSCO Excellent Partner).
- A technological strength in localizing high-cost core industrial components, exemplified by the domestic development of STS cold rolling mill IMR Chock Assembly, replacing imports.A technological strength in localizing high-cost core industrial components, exemplified by the domestic development of STS cold rolling mill IMR Chock Assembly, replacing imports.
- Roll Chocks for Rolling Mills, applying wear-resistant/high-strength 550MPa Cr-Mo cast steel, contribute to extended product lifespan and reduced maintenance costs.Roll Chocks for Rolling Mills, applying wear-resistant/high-strength 550MPa Cr-Mo cast steel, contribute to extended product lifespan and reduced maintenance costs.
- Patented 'insert casting method' for Cone Crusher Mantle & Concave ensures superior durability and enhances customer productivity by reducing component replacement frequency.Patented 'insert casting method' for Cone Crusher Mantle & Concave ensures superior durability and enhances customer productivity by reducing component replacement frequency.
- Awarded "World-Class Product" status for its main products (ROLL CHOCK, steel mill rolling equipment) by the Ministry of Knowledge Economy in 2009.Awarded "World-Class Product" status for its main products (ROLL CHOCK, steel mill rolling equipment) by the Ministry of Knowledge Economy in 2009.
- Demonstrated global market competitiveness by receiving the "Ten Million Dollar Export Tower" award on the 46th Trade Day in 2009.Demonstrated global market competitiveness by receiving the "Ten Million Dollar Export Tower" award on the 46th Trade Day in 2009.
- A company showing strengths in technical completeness and commercialization capabilities compared to major competitors.A company showing strengths in technical completeness and commercialization capabilities compared to major competitors.
- Primary application industries include steelmaking facilities.Primary application industries include steelmaking facilities.
- Contribution to the steel industry through the supply of rolling mill components.Contribution to the steel industry through the supply of rolling mill components.
- Support for the construction and basic industries through the supply of cement production facility components.Support for the construction and basic industries through the supply of cement production facility components.
- Performance of an essential role in the resource development industry through the production of mineral and mining equipment parts.Performance of an essential role in the resource development industry through the production of mineral and mining equipment parts.
- Quality certification through selection as an excellent supplier for POSCO's materials division and 5 consecutive years as a POSCO certified supplier.Quality certification through selection as an excellent supplier for POSCO's materials division and 5 consecutive years as a POSCO certified supplier.
- High reliability demonstrated by 15 consecutive years as a PHP (POSCO Excellent Partner) as of 2023.High reliability demonstrated by 15 consecutive years as a PHP (POSCO Excellent Partner) as of 2023.
- Enhanced technological development capabilities through the establishment of an affiliated research institute.Enhanced technological development capabilities through the establishment of an affiliated research institute.
- Possession of patents related to the 'insert casting method' applied in the manufacturing of Cone Crusher Mantle & Concave.Possession of patents related to the 'insert casting method' applied in the manufacturing of Cone Crusher Mantle & Concave.
- Overall expertise in the field confirmed through a comprehensive technology portfolio and project execution history.Overall expertise in the field confirmed through a comprehensive technology portfolio and project execution history.
- Recognition of technological prowess through the selection of its main products (ROLL CHOCK, steel mill rolling equipment) as "World-Class Products" by the Ministry of Knowledge Economy in 2009.Recognition of technological prowess through the selection of its main products (ROLL CHOCK, steel mill rolling equipment) as "World-Class Products" by the Ministry of Knowledge Economy in 2009.
- Corporate management achievement of the CEO receiving the Dongtak Industrial Medal for Win-Win Cooperation between Large and Small Businesses in 2011.Corporate management achievement of the CEO receiving the Dongtak Industrial Medal for Win-Win Cooperation between Large and Small Businesses in 2011.