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Stainless Steel 5 Inch Od Long Compression Spring
US$0.10-1.00
10,000 Pieces
Product specifications
Type
Sample price:US$80.00/piece.Request sample
Product profile
Customization
AvailableFunction
Pressed, BufferMaterial
Stainless SteelModel NO.
DF2101316Usage
Industrial, Auto, Motorcycle, Home ApplianceLoad Type
CompressionProduction Process
Cold RollShape
CoilProduct Name
Compression Spring 5 InchBusiness Mode
Factory OEMMaterial Standard
GB 4357-09 or EquivalentWire Range
From Min 0.1mm(0.004inch) to Max 12mm(0.48inch)Winding Direction
as Per Your RequestEnd Type
Close and Ground FlatSurface Treatment
WashingCoating Thickness
8~10 MicrometerTesting Method
Random Sample InspectionTolerance
GB Standard, Grade II or as Per Your RequirementSpring Rate Tolerance
+-3%~10%Aql Level
Aql 1.0Packing Method
OPP Bags with Blank CartonNormal Carton Size
23X23X31/Cm with No MarkCertificate
ISO9001, SGS, RoHS, CE, Ts16949Transport Package
Carton and Outer Wooden CaseSpecification
customizedTrademark
DOFOOrigin
Wenzhou, ChinaHS Code
7320909000Production Capacity
1, 000, 000 Pieces Per MonthKey features
RoHS Compliant Materials: All spring materials including stainless steel and carbon steel meet European RoHS certification standards.
Custom Design Assistance: Engineers provide CAD, 3D, and 2D design support to optimize production costs and meet specific needs.
Flexible Order Quantities: We accept both small quantity and large run orders, offering effective solutions based on your demand.
Sample Charge Refundable: Custom spring sample charges are refunded upon placement of a formal order, excluding additional mold fees.
Multiple Coating Options: Available coatings include Zinc, Nickel Plated, Electrophoresis, and Painting, all prior to RoHS standards.
Wide Material Range: Wire diameter available from 0.001 to 0.075 inches, covering Carbon steel, Stainless steel, and Music Wire.
Fast Lead Time: Standard custom springs delivered within 25 days; complex shapes require 30-40 days.
Professional QA Inspection: 100% visual and function inspection for finished products with traceable raw materials.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 26 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤0.32h
AI-Powered supplier vetting
SummaryThe supplier presents itself as a professional technical supplier with 3D design, R&D, ODM, and broad customization capabilities. It reports structured production, testing, packing, quality-control, traceability, corrective-action, and complaint-handling procedures, as well as valid contracts with associated subcontractors and inventory capability. Export experience is stated at 26 years, with self-operated import/export rights and 21%–30% of sales from exports. However, it has no overseas warehouse, showroom, agents, or branches, and reports no offline trade-show participation. Certification holdings are explicitly described in the company profile, but current validity is not independently established. Financial credibility cannot be assessed because the supplied financial fields contain zero values. Customer cases and named customer references are not provided.
Supplier typeThe supplier is explicitly identified as a professional technical supplier and describes a mature structure covering management, design, production, testing, and packing. It also has valid manufacturing contracts with associated subcontractors and self-operated import/export rights, supporting classification as a manufacturing-oriented technical supplier.
CertificationsThe company description states that it obtained ISO9001, TS16949, ISO14001, OHSAS18001, and BV certification. The slice does not provide certificate numbers, validity dates, or verification records, so the assessment is based on the supplier’s stated holdings.
After-Sales capabilityThe supplier reports clear procedures and followed records for corrective and preventive actions and customer complaints, plus quality assurance and material traceability. However, it has no overseas agents or branches, overseas warehouse, or showroom, which limits local service infrastructure.
R&D capabilityThe supplier reports R&D capability, new products in the past year, 3D software design services, and ODM services. It does not have an available SDK and does not provide OEM services for popular brands, but those limitations do not negate the stated product-development capabilities.
Production capacityEvidence includes valid contracts with every associated subcontractor, inventory capability, one-month average lead times in both peak and off-seasons, 20 qualified service-capability suppliers, standardized finished-product inspection instructions, and established production and testing structures. The supplier also reports 26 years of export experience and self-operated import/export rights.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with 3D design and ODM services. This indicates broad design-to-production customization coverage.
Product Q&A
Q:Which materials are available and do they meet RoHS certification?
A:
We manufacture compression, extension, torsion springs, and wire forms using High-Grade Spring Steel, Carbon steel, Stainless steel, and Music Wire. All materials comply with European RoHS certification.
Q:Do you support small quantity orders?
A:
Yes, DoFo Spring manufactures both large quantity and small quantity springs based on your demand. We work with you to choose the most effective solution.
Q:Does DOFO spring offer design or initial assistance?
A:
Our experienced engineers help with design using drawings to lower production costs. We provide CAD, 3D, and 2D design layouts as well as prototype development.
Q:What is the typical lead time for custom springs?
A:
For springs within our mold range, delivery is within 25 days. For complex shapes, the delivery time is around 30-40 days.
Q:Do you charge for custom spring samples?
A:
The sample charge is refunded when we receive the formal order. However, if the sample requires an additional mold, we will charge for it.
Send Inquiry
*To:
Yueqing Dofo Spring Manufacturing Co., Ltd.
Yueqing Dofo Spring Manufacturing Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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