Hebei Haoyuan Machinery Manufacturing Co., Ltd.Situated in the Jinfen Industrial Park, Wanshu Town, Yanshan County, with convenient access to the Jinghu Expressway, the Jingshan Expressway, and National Highway 205. Our company is a large-scale manufacturer and processor specializing in steel bar splicing sleeves and deburring threading machines. We boast advanced production equipment, laboratories, and testing machines, with strong technical capabilities and comprehensive production processes and testing methods.
Primarily produce rebar sleeves, rebar connection sleeves, straight thread sleeves, sleeves:
1. Made from international 45# steel with special manufacturing processes, offering high dimensional accuracy and reliable quality.
2. Connectable to ribbed rebars of HRB335, HRB400, and HRB500 grades with diameters 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 series of standard, male/female threaded, and reducing types offer over a hundred varieties, catering to the connection needs of rebar in horizontal, vertical, and diagonal positions within building structures, including both the same and different diameters, adjustable lengths, and directions.
Our company has 21 technical staff and 93 regular employees, forming a large-scale, specialized production line and completing many major national engineering projects. We regard our customers as gods and quality as life, and have been awarded the "Quality Management Standard Unit" by the National Industrial Department. We offer a complete range of sleeve specifications, excellent quality, and guarantee that there are no oversized or undersized sleeves. Our management system strictly adheres to the ISO9001 standard, ensuring that substandard products do not enter the market and affect 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 popular and highly 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, for joint development. 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, steel connection sleeve, straight thread sleeve, and sleeve. 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 "quality is life of the company, customers are God to the company." Further increasing investment, the company has enhanced its equipment level and market competitiveness. From research and development, design, production, to sales, the company provides full-process tracking, offering customers reliable products with excellent service and affordable prices.

Rebar couplings include: straight thread couplings, reducing couplings, left and right hand thread couplings, Grade 4 steel couplings, upset couplings, welded couplings, cold extrusion couplings, threaded steel couplings, etc. Rebar couplings are also known as straight thread connection rebar sleeves, rebar connectors. Specifications for straight thread rebar couplings: φ12, φ14, φ16, φ18, φ20, φ22, φ25, φ28, φ32, φ36, φ40. Common specifications are φ16-φ32 straight thread couplings, Grade 4 steel couplings, and upset couplings, which are differentiated by steel stampings on the external diameter and length. The internal threads are straight threads.

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