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Active-Coil Helical Extension Spring for Trampoline
US$0.01-0.10
1,000 Pieces
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableFunction
ExpandedMaterial
SteelModel NO.
HF-ES0026Usage
SportsLoad Type
ExtensionProduction Process
Hot RollShape
HelicalFree Length
5.5"/ 6" / 7"/ 8" / 8.5"/ 9" / 10"Od
18mm / 20mm / 22mm / 24mm,etcHook Type
Double Hook/U-Hook/Curved Hook,etcTotal Coils
12coils ,etcSurface Finish
Zinc Plated ,etcTransport Package
Carton+Pallet, or CusotmSpecification
Wire Diameter: 0.05-12mm or customizedTrademark
Huifeng or OEMOrigin
Ningbo, ChinaHS Code
7320909090Key features
Wide Customization Range: Customizable free length, OD, hook type, coils, and surface finish to meet specific needs.
Certified Quality Control: ISO 9001:2015 and IATF 16949 certified with 100% visual and functional inspection.
Versatile Material Options: Available in carbon steel, music wire, stainless steel 304/316, and galvanized steel.
Fast Lead Time: Most custom springs manufactured within 7-25 days with quotes provided in 24-48 hours.
Global Shipping Support: Ships worldwide via UPS, FedEx, DHL, or your preferred provider from Ningbo Port.
Free Sample Availability: Free samples available from stock; $100 sample development fee refundable after mass production.
Multi-Industry Application: Suitable for automotive, furniture, appliances, industrial machinery, and fitness equipment.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤0.05h
AI-Powered supplier vetting
SummaryThe supplier is a privately owned combined business and manufacturer of springs and related elastic components, established in 2015 and exporting for 9 years. It reports ISO9001:2015 certification, documented finished-product inspection procedures, automated production equipment, and broad customization supported by R&D and 3D design services. Reported lead time is within 15 working days in both peak and off seasons. Limitations include no SDK, no factory environmental impact assessment report, no valid manufacturing-capacity contract with affiliated subcontractors, no inventory, overseas warehouse, overseas showroom, overseas agents or branches, and no overseas service countries reported. The supplier has one R&D engineer and no Fortune 500 customer collaborations disclosed.
Supplier typeThe supplier is identified as a privately owned combined company whose scope includes spring and hardware-accessory manufacturing and processing. Its product range covers compression, torsion, extension, battery, profiled, and other steel-wire springs and elastic components; the company description also identifies it as a spring manufacturer established in 2015.
CertificationsThe supplier reports holding an ISO9001:2015 certificate, and the certification is stated consistently in the management-system and sustainable-development information. This provides explicit evidence of a quality-management certification, although no other certification is listed.
R&D capabilityThe supplier identifies itself as a professional technical supplier, provides 3D software design services, and supports customization from samples, designs, and other formats. However, it has no available SDK and reports only one R&D engineer, so the evidence supports design capability but not a broad or highly developed innovation infrastructure.
Production capacityThe supplier manufactures multiple spring and steel-wire product categories, uses multiple automated production equipment, follows written and uniform finished-product inspection instructions, and reports lead times within 15 working days in both peak and off seasons. Constraints include no inventory capability and no valid contract with affiliated subcontractors, which limits evidence of broader capacity support.
Customization capabilityThe supplier explicitly offers customization from samples, designs, minor customization, flexible customization, and full customization. These options are supported by reported R&D capability and 3D software design services, providing clear evidence of broad customization coverage.
Product Q&A
Q:What types of springs can your company manufacture?
A:
We manufacture a wide range of springs, including compression springs, extension springs, torsion springs, strip forms, wire forms, etc. We also have the capability to manufacture customized springs to meet your specific needs.
Q:What materials do you use to manufacture springs?
A:
We can work with a variety of materials, including stainless steel, carbon steel, alloy steel, brass, and nickel alloys, etc. If you have a specific material requirement, please let us know and we can discuss whether we can accommodate your needed.
Q:How can I get an sample for testing? What is your nearest shipping port?
A:
Free sample: We'd love to send you free samples which have in stock, and you just need to arrange the shipment or pay the shipping fee. Charged sample: $100 for sample develop, and refund after mass production. Nearest port is Ningbo Port.
Q:What is spring constant and how is it measured?
A:
Spring constant is a term used to describe the stiffness of a spring. It is a measure of the amount of force required to compress or stretch a spring by a certain distance. Spring constant is an important parameter used in designing and selecting springs for various applications. Knowing the spring constant allows engineers to determine the load capacity of a spring and its deflection under a given load. This information is critical for us to design springs that can meet the specific requirement
Q:What is your lead time for manufacturing custom springs?
A:
Our lead time can vary depending on the complexity of the spring, the type and the quantity you require. Generally, we aim to provide a quote within 24-48 hours of receiving your request and can manufacture most custom springs within 7-25days.
Send Inquiry
*To:
Cixi Zhouxiang Huifeng Spring Factory
Cixi Zhouxiang Huifeng Spring Factory*Content:
Supplier replies will be sent to your registered email
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