Hebei Haoyuan Machinery Manufacturing Co., Ltd.Located in the Innovation Industrial Park of Wangshu Town, Yanshan County, adjacent to the Jinghuang Highway, Jingshao Highway, and National Highway 205, transportation is convenient. Our company is a large-scale production and processing enterprise specializing in the production of rebar coupling sleeves and deburring and thread rolling machines. We possess advanced production equipment, laboratories, and testing machines, boasting strong technical capabilities and comprehensive production processes and testing methods.
Mainly produces rebar sleeves, rebar connection sleeves, straight thread sleeves, and 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 from Ф14 to Ф40mm.
3. Inspected and certified by the National Construction Engineering Quality Supervision and Inspection Center, meeting the I-level joint standard as per JGJ107-2010.
4. Our three main series include standard, male and female thread, and reducing types, with over a hundred varieties to meet the requirements for connecting rebars of the same and different diameters, adjustable lengths, and directions in horizontal, vertical, and diagonal sections of building structures.
Our company has 21 technical staff and 93 general employees, forming a large-scale, professional production line and completing many major national projects. We treat our customers as gods and quality as life, and have been awarded the "Quality Management Standard Unit" by the National Industrial Department. Our sleeve specifications are complete, quality is excellent, and we guarantee there are no oversized or undersized sleeves. Our management system strictly adheres to the ISO9001 standard, ensuring that non-compliant 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畅销and highly praised by customers. The company adheres to the宗旨 of "Technology as the 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, power, nuclear power, petrochemicals, metallurgy, instruments, aerospace, aviation, shipping, docks, construction, food, transportation, and heating pipelines. We offer various types of high-quality steel sleeve couplings, steel connection sleeves, straight thread sleeves, and sleeves. 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 the God of the company." The company has further increased investment to enhance its equipment level, boost market competitiveness, and provides reliable products throughout the entire process of research, design, production, and sales. With excellent service and affordable prices, we cater to our customers' needs.

Rebar couplings are categorized into: straight thread couplings, reducing couplings, left and right thread couplings, Grade 4 steel couplings, upsetting couplings, welded couplings, cold extrusion couplings, threaded steel couplings, etc. Rebar couplings are also known as straight thread rebar connectors or rebar adapters. The specifications of straight thread rebar couplings are φ12, φ14, φ16, φ18, φ20, φ22, φ25, φ28, φ32, φ36, φ40. Common specifications are φ16-φ32 straight thread couplings, Grade 4 steel couplings, and upsetting couplings, which are distinguished by steel stamps on the outer surface. The outer diameter and length vary, with the inner threads being right-hand threads.

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