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Hot-rolled compression spring
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Technical Parameters
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Product Introduction
Hot‑rolled compression springs are heavy‑duty springs manufactured by heating metal bar stock to high temperatures, then coiling it, followed by quenching and tempering. The underlying principle is to reduce the material’s hardness at elevated temperatures for easier forming, and then restore its strength and elasticity through heat treatment, enabling it to withstand extremely high loads.
Applicable Scenarios and Typical Size Ranges As follows, it is particularly well suited for heavy-duty equipment that demands high strength and durability:
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Engineering and Mining Machinery: vibration screen springs, crusher springs, etc.; typical wire diameters range from 8 mm to 60 mm, with a coil ratio of 3 to 12 and an mean diameter not exceeding 460 mm.
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Railways and Transportation: freight car springs, suspension springs, etc., with a free height ≤ 900 mm and an aspect ratio of 0.8–4.
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High-voltage switchgear: Specialized springs for the power industry, with wire diameters typically ranging from 16 mm to 40 mm and mean diameters ≤ 400 mm.
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General-purpose heavy industry: shipbuilding, bulldozers, excavator springs, and more.
Core Parameters and Process Standards The following specifications shall be referenced:
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End treatment: Typically, tapered, closed, and ground‑smooth ends are used to ensure perpendicularity and stable load-bearing.
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Applicable standards: National Standard GB/T 23934-2015 or American Standard ASTM A125-24.
Special Reminder : These products are typically non‑standard customizations; when placing an order, please be sure to provide drawings or detailed specifications (material, wire diameter, dimensions, load capacity, and operating environment).
Solutions for your products
Sales Network
Products are sold all over the country,and exported to the United States，Brazil, India,Mongolia, Southeast Asia and other countries and regions.
Our Advantage
Dongfang Machinery can receive OEM orders
Technology Advantage
Professional technical team with rich production experience, simply provide us with the materials needed or a design drawing, and we will carry out production to meet your needs.
Production Capacity
We have more than 80 sets of machines, including CNC machines , ensuring we can meet production demands quickly.
Quality Control
In order to guarantee the final quality, we utilize advanced production technology, and carry out strict quality testing procedures done by professional inspection staff.
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