Hebei Haoyuan Machinery Manufacturing Co., Ltd.Located in the Innovation Industrial Park of Wangshu Town, Yanshan County, adjacent to the Jinghuang and Jingshao Expressways and National Highway 205, transportation is convenient. Our company is a large-scale production and processing enterprise specializing in the production of steel bar coupling sleeves and deburring and rolling machines. We possess advanced production equipment, laboratories, and testing machines, with strong technical capabilities and comprehensive production processes and testing methods.
Mainly produces steel bar couplings, steel bar connection couplings, straight thread couplings, and couplings:
1. Made from international 45# steel, with special manufacturing processes, high dimensional accuracy, and reliable quality.
2. Connectable to ribbed rebars with HRB335, HRB400, and HRB500 grades, in sizes ranging from Ф14mm to Ф40mm.
3. Inspected and tested by the National Construction Engineering Quality Supervision and Inspection Center, meeting the I-level joint standard of JGJ107-2010.
4. The three main series include standard, male and female thread, and reducing types, with over a hundred varieties. They can meet the connection needs of reinforcing bars for horizontal, vertical, and diagonal sections in building structures, including the same diameter, different diameters, adjustable lengths, and directions.
Our company has 21 technical staff and 93 general employees, forming a large-scale, professional production line and completing many major national engineering projects. We regard our customers as gods and quality as life, and have been awarded the title of "Qualified Unit for Quality Management" by the National Industrial Department. Our sleeves come in a complete range of specifications, with excellent quality and guaranteed to be free of oversized or undersized parts. Our management system strictly adheres to the ISO9001 standard, ensuring that substandard products do not enter the market and tarnish our company's reputation.
Our factory, through arduous entrepreneurship and production practice, has accumulated rich experience. Our products feature attractive appearance, high tensile strength, and stable mechanical properties. All products are made from superior 45# steel, ensuring high-quality standards. They are well-sold across various regions and have received unanimous praise from customers. The company adheres to the宗旨 of "technology as a guide, people-oriented, quality first, and integrity in business." We practice scientific management and meticulous manufacturing. Welcome both new and old friends to visit us, discuss business, and develop together. Our products are widely used in industries such as electronics, electricity, nuclear power, petrochemicals, metallurgy, instruments, aerospace, aviation, ships, docks, construction, food, transportation, and heating pipelines. We offer various types of high-quality steel sleeve couplings, steel coupling sleeves, straight thread sleeves, and sleeves. Our products have been exported to regions such as the Middle East and Southeast Asia multiple times.
Hebei Haoyuan Machinery Manufacturing Co., Ltd. adheres to the business philosophy of "product quality is the lifeblood of the company, and serving customers is the deity of the company." The company has further increased its investment to enhance its equipment level, boost market competitiveness, and provide customers with reliable products throughout the entire process of research and development, design, production, and sales. With excellent service and affordable prices, we cater to the needs of our clients.

Rebar sleeve types: straight thread sleeve, reducing sleeve, male and female thread sleeve, grade 4 steel sleeve, upsetting sleeve, welded sleeve, cold extrusion sleeve, threaded steel sleeve, etc. Rebar sleeves are also known as straight thread connecting rebar tubes and rebar couplers. Specifications for straight thread rebar sleeves: φ12, φ14, φ16, φ18, φ20, φ22, φ25, φ28, φ32, φ36, φ40. Commonly used sizes are φ16-φ32 straight thread sleeves, grade 4 steel sleeves, and upsetting sleeves, distinguished by external steel stamps, with varying outer diameters and lengths, and male threads.

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