Hebei Haoyuan Machinery Manufacturing Co., Ltd.Located in the Innovation Industrial Park of Wangshu Town, Yanshan County, adjacent to the Jinghuang Highway, Jingshang Highway, and National Highway 205, transportation is convenient. Our company is a large-scale production and processing enterprise specializing in the production of steel bar couplings and deburring and rolling thread machines. We have advanced production equipment, laboratories, and testing machines, with strong technical strength and complete production processes and testing methods.
Mainly produces 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. Tested 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 include standard, male and female threaded, and reducing types, with over a hundred varieties to meet the requirements for connecting rebar with the same and different diameters, adjustable lengths, and directions in horizontal, vertical, and diagonal sections of construction structures.
Our company has 21 technical staff and 93 general employees, forming a production line with a large scale and production capacity, and has completed 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 with excellent quality, guaranteeing no mis-sized 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畅销 and consistently praised by customers. The company adheres to the philosophy 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 us, discuss business, and grow together. 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 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 God," and further increases its investment to enhance equipment levels and strengthen market competitiveness. We meticulously track products from research and development, design, production, to sales, providing reliable products with excellent service and affordable prices.

Rebar sleeve types: straight thread sleeve, tapered sleeve, right and left-hand thread sleeve, grade 4 steel sleeve, upsetting sleeve, welded sleeve, cold extrusion sleeve, threaded steel bar sleeve, etc. Rebar sleeves are also known as straight thread connecting rebar sleeves or rebar connectors. 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, which are differentiated by external steel engravings. External diameters and lengths vary, with the internal threads being right-hand threads.

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