Grade 4 steel sleeve

Hebei Haoyuan Machinery Manufacturing Co., Ltd.Located in the Innovation Industrial Park of Wangshu Town, Yanshan County, adjacent to the Jinghu (Beijing-Hong Kong-Macau) Expressway, the Jingshen (Beijing-Shenzhen) Expressway, 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 rib-removing and thread-winding 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 sleeves, steel bar connection sleeves, straight thread sleeves, sleeves:
1. Made from international 45# steel, with special manufacturing processes, high dimensional accuracy, and reliable quality.
2. Connectable to rebared reinforcing steel with HRB335, HRB400, and HRB500 grades, in sizes ranging from Ф14 to Ф40mm.
3. Inspected and certified by the National Construction Engineering Quality Supervision and Inspection Center, meeting the I-grade joint standard as per JGJ107-2010.
4. The three main series include standard, male and female thread, and reducer types, with over a hundred varieties to meet the connection requirements of identical, reducer, adjustable length, and directional reinforcing bars for horizontal, vertical, and diagonal parts in building structures.
Our company has 21 technical staff and 93 regular employees, forming a large-scale, specialized production line with considerable production capacity and completing numerous major national engineering projects. We treat our customers as gods and quality as life, and have been awarded the title of "Qualified Quality Management Unit" by the National Industrial Department. Our sleeves come in a complete range of specifications, with excellent quality and guaranteed to have no size discrepancies. Our management system strictly adheres to the ISO9001 standard, ensuring that non-compliant 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 widely畅销 and consistently praised by customers. The company adheres to the principle of "technology as a guide, people-oriented, quality first, and诚信 business." We practice scientific management and meticulous manufacturing. Welcome both new and old friends to visit and discuss business opportunities for joint development. Our products are widely used in industries such as electronics, electricity, nuclear power, petrochemicals, metallurgy, instruments, aerospace, aviation, shipping, docks, construction, food, transportation, and heating pipelines. We offer a variety of high-quality steel sleeve, steel connection sleeve, straight thread sleeve, and sleeve products. Our products have been exported to the Middle East, Southeast Asia, and other regions 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 ensure the entire process from research and development, design, production, to sales is meticulously tracked. With excellent service and affordable prices, we provide customers with reliable products that meet their needs.

Rebar sleeve types: straight thread sleeve, reducing sleeve, left and right thread sleeve, grade 4 steel sleeve, upsetting sleeve, welding sleeve, cold extrusion sleeve, threaded bar sleeve, etc. Rebar sleeves are also known as straight thread rebar connectors or rebar couplers. Specifications for straight thread rebar sleeves: φ12, φ14, φ16, φ18, φ20, φ22, φ25, φ28, φ32, φ36, φ40. Common specifications are φ16-φ32 straight thread sleeves, grade 4 steel sleeves, and upsetting sleeves, which are distinguished by external steel stamps. The outer diameter and length vary, with the internal thread being a right-hand thread.

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