For a steel bar arc bender, a drawing needs to define both the material and the finished curve. Haihui GWH24 and GWH32 are roller-type forming options for circular and curved reinforcement. The minimum achievable radius must be reviewed for the actual bar and configuration.
Identify the diameter reference
State whether the finished radius or circle diameter is measured to the inside surface, outside surface or bar centreline. Include the bar diameter, grade and whether the material is plain or deformed. A sketch with one unlabelled circle dimension can be interpreted in several ways.
Describe the arc ends and extent
Provide the required arc angle or another unambiguous description of its extent. Mark straight ends, opening gaps and any joining details. Clarify whether the output is a partial arc or a complete circle. Welding the ends is a separate operation unless explicitly included in an agreed equipment scope.
Compare model-specific information
The Haihui page lists GWH24 for 12–24 mm bar with a 3 kW motor, and GWH32 for 25–32 mm bar with a 4 kW motor. These diameter ranges do not define every possible bend radius. Send the most demanding curve for a tooling and material review.
Inspect the released part
Check the finished curve after forming load is removed, using an agreed measuring arrangement. Record material and setup so a repeat trial can be compared meaningfully. Include loading, any forming passes and unloading in a production demonstration. Catalog travel speed should not be treated as a completed-circle output guarantee.
Frequently asked questions
Can I select an arc bender using only bar diameter?
No. Steel grade, finished radius, arc extent, end geometry and the proposed tooling all affect suitability.
How can I request a factory quotation?
Send dimensioned drawings, material grade and sizes, required quantities, local power supply and the destination country. Ask Haihui to confirm configuration, accessories, inspection requirements and delivery terms in writing.
Related equipment from Haihui
Review the GWH24 / GWH32 Steel Circle Machine | Rebar Arc Bender for current product information, or browse the complete rebar processing machine range.
Contact the factory in Xingtai, China
Xingtai Haihui Machine Tool Co., Ltd. supplies rebar processing machinery from Renze District, Xingtai, Hebei, China. Discuss your application and request a written configuration and quotation.
WhatsApp / Telephone: +86 13932960232 · 417786525@qq.com · Contact Haihui
