Hebei Haoyuan Machinery Manufacturing Co., Ltd.Located in the Innovation Industrial Park of Wangshu Town, Yanshan County, adjacent to the Jinghu-Huaihu Expressway, Jingshao 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剥肋滚丝 machines. We have advanced production equipment, laboratories, and testing machines, boasting strong technical strength and完善的processes and testing methods.
Mainly produces steel sleeve, steel connection sleeve, straight thread sleeve, sleeve:
1. Utilizing international 45# steel with a special manufacturing process, 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. Tested and certified by the National Construction Engineering Quality Supervision and Inspection Center, meeting the I-grade joint standard of JGJ107-2010.
4. Our three main series include standard, male/female threaded, and reducing types, with over a hundred varieties to meet the connection needs of steel bars for horizontal, vertical, and diagonal sections in building structures, as well as for 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 treat our customers as gods and quality as life, and have been awarded the "Qualified Unit for Quality Management" 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 well-sold across various regions and have received unanimous praise from customers. The company始终坚持 the宗旨 of "technology as the guide, people-oriented, quality first, and诚信 operation." 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, power, nuclear power, petrochemicals, metallurgy, instruments, aerospace, aviation, ships, ports, 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 that "product quality is the lifeblood of the company and customer satisfaction is our god." The company has further increased its investment to enhance its equipment level, boost market competitiveness, and meticulously follows the entire process from research and development, design, production, to sales. We provide reliable products to customers with excellent service and affordable prices.

Rebar couplings are categorized into: straight thread couplings, reducing couplings, reverse thread couplings, Grade 4 steel couplings, upsetting couplings, welding couplings, cold extrusion couplings, threaded rebar couplings, etc. Rebar couplings are also known as straight thread rebar connectors or rebar connectors. The specifications of straight thread rebar couplings are φ12, φ14, φ16, φ18, φ20, φ22, φ25, φ28, φ32, φ36, φ40. The commonly used 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, and the internal threads are right-hand threads.

Welcome to inquire, all customers!