About Xian Lianhu Spring Device Manufacturer - Spring Supplier in China

China hosts Xian Lianhu Spring Device Manufacturer, which currently lists eleven distinct products across its catalogue. The supplier groups its offerings under the broader categories of Nuts, Agriculture, Springs and Stainless Steel Wires, reflecting a focus on mechanical components rather than consumer goods. Each entry in the catalogue corresponds to a specific spring form, ranging from standard compression and extension designs to more specialised types such as antenna and brake‑return springs. The only product with an explicit customs classification is the OEM Custom Stainless Steel Wire Forming Spring, recorded under HS code 7320.20 and manufactured from stainless‑steel grades 304 or 316.

Product Range and Specialties of Xian Lianhu Spring Device Manufacturer

The catalogue covers a full spectrum of spring engineering: extensing (extension) springs, compression springs, torsion/torque springs, Belleville (conical disc) springs, suspension and strut springs, automotive and engine springs, brake‑return springs, antenna springs, spring clips and custom carbon‑steel compression springs. In the global spring market, extension and compression springs are typically produced from music‑wire (high‑carbon steel, ASTM A228) or stainless‑steel alloys (304/316) with wire diameters from 0.2 mm up to 10 mm, coil counts ranging from a few turns to several dozen, and load capacities from a few hundred grams to several tonnes. Belleville springs are often specified by spring height (1‑5 mm), outer diameter (10‑200 mm) and material hardness (Rockwell C 45‑55). Stainless‑steel wire forming products such as the listed OEM spring fall under HS chapter 73 and are commonly supplied in diameters 0.5‑6 mm with corrosion‑resistant finishes.

Trade and Export Information - Xian Lianhu Spring Device Manufacturer

Chinese spring manufacturers regularly ship to automotive clusters in the United States, Germany, Japan and South Korea, as well as to industrial equipment makers in Southeast Asia and the Middle East. The HS code family 7320 - “Other iron or steel wire products” - is the primary customs classification for stainless‑steel wire springs, while related spring components may appear under 7321 (nails, screws) or 7322 (bars and rods). Buyers typically require ISO 9001 quality‑management certification, CE marking for EU markets, and where automotive applications are involved, compliance with IATF 16949 or specific OEM audits. Export shipments are usually arranged on 20‑ft or 40‑ft containers, packed in anti‑rust bags or sealed polymer wraps, with FOB Shanghai or CIF Hong Kong as common Incoterms.

Sourcing from Xian Lianhu Spring Device Manufacturer - Buyer Guidance

When sourcing springs from this supplier, request material test certificates that confirm the stainless‑steel grade (304/316) or carbon‑steel specification (e.g., ASTM A228). Ask for a spring‑rate test report that details load‑deflection curves, fatigue life under cyclic loading, and corrosion‑resistance test results for stainless‑steel items. Verify that the supplier can provide CAD drawings or dimensional drawings for custom designs, and confirm the agreed packaging (e.g., moisture‑absorbing packets, wooden crates) before finalising the order.

What types of springs are listed in the catalogue?

The catalogue includes extension springs, compression springs, torsion (torque) springs, Belleville disc springs, suspension/strut springs, automotive and engine springs, brake‑return springs, antenna springs, spring clips and custom carbon‑steel compression springs. Each type is described by its functional application rather than by a brand name.

Which stainless‑steel grades are used for the custom wire forming spring?

The OEM Custom Stainless Steel Wire Forming Spring is manufactured from grades SS304 and SS316, both of which are standard austenitic stainless steels offering good corrosion resistance. These grades are commonly specified for springs that require exposure to moisture or mildly corrosive environments.

What HS code applies to the stainless‑steel wire forming spring?

The product is recorded under HS code 7320.20, which covers other steel wire products not classified elsewhere. This code is used globally for customs clearance of stainless‑steel wire components.

Which certifications should a buyer request from this supplier?

Buyers should ask for an ISO 9001 quality‑management certificate, material test reports for the specific steel grade, and any CE or IATF 16949 documentation if the springs are destined for automotive or EU markets. These documents confirm compliance with typical industry standards.

What are typical minimum order quantities and lead times?

Standard spring models often have a minimum order quantity of 500 pieces per size, with a typical lead time of 15‑30 days after design approval. Custom spring orders may require higher MOQs and a lead time of 4‑6 weeks to accommodate tooling and testing.

How are the springs packaged for international shipment?

Spring products are usually wrapped in anti‑rust plastic bags, placed in sealed polymer sleeves or moisture‑absorbing packets, and then loaded into wooden crates or directly into 20‑ft containers. This packaging protects surface finish and prevents deformation during handling.

Which regions most frequently import Chinese spring products?

The United States, Germany, Japan and South Korea are the largest importers of Chinese springs for automotive and machinery applications. Additional demand comes from Southeast Asian manufacturers of consumer appliances and industrial equipment.