How is the production process of spring suspension brackets manufacturers?

Spring Support Hanger ManufacturerHow is the production process?

Spring Support HangersAn essential device for thermal displacement compensation and load support in pipelines or equipment, widely used in industries such as power, oil, and chemicals. Its production process encompasses multiple stages, ensuring the product has sufficient load-bearing capacity, displacement adaptation, and service life. Below are the common production process flow and key stages of spring suspension manufacturers:

I. Design and Selection Phase

Process Analysis

Based on the operating parameters provided by the customer (such as pipe dimensions, loads, thermal displacements, installation locations, etc.), load calculations and product selection are conducted.

Confirm the use of Hengli Support Hangers orVariable Spring Support Hanger。

Structural Design

Utilizing CAD/CAE software to design product structures and component dimensions, including spring selection, housing design, and suspension structures.

Strength checks and displacement analysis performed on critical structural components.

II. Production Process

Raw Material Preparation

Spring Steel Selection: Typically, spring steel wires such as 60Si2Mn, 55CrSi, etc., are used and require chemical composition testing and mechanical property tests.

Metallic Structural Components Material: Commonly used carbon steel or alloy steel plates and profiles, such as shells, hanging rods, and supports, are cut to size according to the drawings.

2. Spring Manufacturing

Cold Rolling / Hot Rolling Process

Small-sized springs are commonly produced using cold rolling technology, while larger or high-tension springs are typically made through hot rolling.

Heat Treatment:

The coil is then subjected to tempering, quenching, or hardening treatment to enhance its elasticity and fatigue life.

Sandblasting Treatment:

Spring surfaces are sandblasted for rust removal, enhancing the adhesion of subsequent anti-corrosion coatings.

Coating Protection

Treated with epoxy, polyurethane, or zinc-chromium coatings to enhance corrosion resistance.

3. Metal structural components manufacturing

Numerical Control Cutting: Steel plates are cut using laser or plasma cutting machines to ensure precise dimensions.

Machine Processing: Pertaining to importantConnectorsThe company specializes in precision machining processes such as turning, milling, and drilling for components like hangers and sleeve bushes.

Welding Technology:

Adhere to Welding Procedure Specifications (WPS) while employing CO₂ gas shielded welding, submerged arc welding, or manual arc welding.

Weld seams are non-destructively inspected (e.g., UT/MT) to ensure quality.

Assembly and Verification:

Assemble the spring and bracket structure, adjusting the compression amount to meet the design load.

Load-displacement tests were conducted on the finished products to verify their characteristic curves.

4. Surface Treatment and Painting

Rust Treatment: The entire structure is treated for rust removal using sandblasting or shot blasting equipment to achieve a Sa2.5 grade or higher.

Painting:

Three-coat system of primer + intermediate coat + topcoat, a common industrial anticorrosive paint suitable for outdoor or highly corrosive environments.

We offer customized corrosion protection treatments such as hot-dip galvanizing, zinc coating, and electro-phoresis.

5. Performance Testing and Trials

Load-displacement test: Determines if the spring's support force under the specified displacement meets the standard requirements.

Fatigue Testing (Partial Products): Simulating long-term load cycles to verify product lifespan.

Dimension Inspection: Verify that the total height, compression length, and connection dimensions meet the design drawings.

Quality Management Systems: Most manufacturers are ISO9001 certified, with some also adhering to standards such as ASME, DIN, and NB.

Section 3: Packaging and Shipment

Packaging: Wooden boxes or steel brackets are used for packaging to prevent deformation or rusting during transportation.

Product Identification: Each bracket and hanger is clearly marked with model number, serial number, design load, displacement, and other information for easy installation on-site.

Attached materials:

Manufacturer's certificates, installation manuals, product drawings, inspection reports, etc.

Customization Capabilities and Automation Trends

Modern manufacturers are increasingly adopting automated equipment, such as spring forming machines, welding robots, and intelligent inspection systems, to enhance efficiency and consistency. At the same time, they can also customize non-standard structures to meet specific customer requirements, such as:

High-Temperature Spring Hanger Bracket

Nuclear Power and Ocean Engineering Specialized Support and Hanger Systems

Special displacement stroke, heavy load-bearing support system

Conclusion

The production process of spring suspension brackets involves precise design, selection of high-quality materials, stringent manufacturing procedures, and systematic testing controls. Only standardized production management and professional technical expertise can ensure their long-term stable operation under complex working conditions.