Construction Machinery Hot Coiled Springs

Xuanyu Springsis a professional manufacturer of hot-rolled springs for construction machinery. We specialize in providing highly reliable, long-life elastic cushioning and support solutions for heavy construction machinery such as excavators, loaders, and cranes.

Hot-rolled coil springs for construction machineryare large helical springs specifically designed and manufactured for heavy-duty construction machinery. They utilize a high-temperature hot-rolling process ( 850-1050℃) to roll large-diameter wire (typically not less than 15mm, commonly ranging from 15-200mm) into shape, followed by quenching and tempering treatments. This process imparts the strength, toughness, and durability required to withstand enormous impact and vibration loads. As a core elastic element in the suspension system, vibration damping devices, and various buffer mechanisms of construction machinery, its performance directly affects the operational stability and safety of the equipment.

We are committed to providing high-performance, highly reliable, and highly customizable core flexible components for construction machinery to solve key pain points under extreme working conditions.

1.Ultra-long lifespan guarantee based on "high pressure + shot peening"

·Dual-effect strengthening process: We insist on performing high-compression treatment on all springs to permanently eliminate internal stress, ensuring stable force values, resistance to relaxation, and no sagging during millions of cycles. At the same time, standardized shot peening treatment forms a beneficial compressive stress layer on the spring surface, which can significantly inhibit the initiation of fatigue cracks and improve fatigue life to an industry-leading level.

2.Precise load control and high-quality delivery

·Precise load and accuracy guarantee: Through precision manufacturing processes and strict process control, we ensure that the load-displacement curve, outer diameter, free length and other key parameters of every spring (even single-piece prototypes) accurately meet your design requirements, and the tolerance control is stricter than conventional standards.

·End-to-end quality assurance: From the selection of special materials (60Si2MnA/50CrVA/special alloys) to high-temperature rolling, quenching and tempering, and finally to inspection, we implement end-to-end quality control to deliver a high-quality commitment with consistent performance and safety.

3.Deep customization and rapid response with no minimum order quantity.

·We support customized prototyping starting from a single piece: We understand the validation needs of new product development. Whether your requirement is a prototype of a single spring or small-batch trial production, we provide the same engineering support and manufacturing services, and the prototyping fee can be deducted from subsequent orders.

·In-depth engineering collaboration: Our team of engineers can provide you with full technical support from load calculation and structural optimization to operating condition matching, ensuring that customized solutions are a perfect fit for your equipment.

Heavy construction machinery: suspension and vibration damping systems for large excavators, loaders, bulldozers, and crawler cranes.

Mining and construction equipment: buffer and reset mechanisms for equipment such as mining dump trucks, concrete pump trucks, road rollers, and pile drivers.

Energy and Heavy Transport: Load-bearing and stabilization systems for wind power generation installation equipment and heavy transport vehicles (beam transporters, etc.).

Special equipment: Fields with extreme reliability requirements, such as national defense engineering machinery and emergency rescue equipment.