Do you offer stock and shipping services for large orders?

Yes, we provide specific stock services for long-term business, allowing shipments on an annual or monthly schedule.

What payment terms do you accept?

We accept T/T, L/C at sight, DP, PayPal, Western Union, and small-amount payments.

Garage Door Pusher Spring for Door Opener

Name: Garage Door Pusher Spring for Door Opener
Brand: Yueqing Dofo Spring Manufacturing Co., Ltd.
SKU: 949158805

Zhejiang, ChinaYueqing Dofo Spring Manufacturing Co., Ltd.

US$0.10-1.00

10,000 Pieces

Sample price:US$80.00/piece.Request sample

Product profile

Customization

Available

Function

Pressed, Buffer

Material

Steel

Model NO.

DF2101376

Usage

Industrial, Auto, Motorcycle

Load Type

Compression

Production Process

Cold Roll

Shape

Coil

Product Name

Push Down Spring

Business Mode

Factory OEM Service

Material Standard

GB 4357-09 or Equivalent

Winding Direction

Left Winding

End Type

Close and Ground

Surface Treatment

Zinc Coating

Coating Thickness

8~10 Micrometer

Testing Method

Random Sample Inspection

Tolerance

GB Standard, Grade II or as Per Your Requirement

Spring Rate Tolerance

+-3%~10%

Aql Level

Aql1.0

Certificate

ISO9001, SGS, RoHS, CE

Normal Carton Size

23X23X31/Cm with No Mark

Transport Package

OPP Bags with Blank Carton and Outer Wooden Case

Specification

customized

Trademark

DOFO

Origin

Wenzhou, China

HS Code

7320909000

Production Capacity

1, 000, 000 Pieces Per Month

Key features

Customization Options: Supports full customization from samples, designs, and minor adjustments.

RoHS Compliant Materials: High-grade steel materials comply with European RoHS certification standards.

Fast Lead Time: Delivery within 25 days for standard springs; 30-40 days for complex shapes.

Free Sample Charge: Sample fees are refunded upon placement of a formal order.

Technical Support: Engineers provide design assistance, CAD/3D drawings, and cost-saving advice.

Multiple Coating Options: Offers zinc, black oxide, and stainless steel coatings meeting RoHS standards.

Flexible Payment Terms: Accepts T/T, L/C at sight, DP, PayPal, and Western Union.

Quality Assurance: 100% inspection for finished products with traceable raw materials.

Company profile

High Repeat Buyers ChoiceIn-stock Capacity100% Finished Products InspectionQuality Assurance

Yueqing Dofo Spring Manufacturing Co., Ltd.

Zhejiang, China

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: ≤0.51h

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?

We offer Carbon steel, Stainless steel, and Music Wire, all complying with European RoHS standards. Wire diameter ranges from 0.001 to 0.075 inches.

Q:Do you support small quantity orders?

Yes, we manufacture both large and small quantity springs based on your specific demand and will help choose the most effective solution.

Q:Does DOFO spring offer design or initial assistance?

Our engineers provide design assistance using drawings, offer cost-saving advice, and provide CAD, 3D, and 2D design layouts as well as prototype development.

Q:What is the typical lead time for custom springs?

Standard springs are delivered within 25 days. Complex shapes require around 30-40 days.

Q:Do you charge for custom spring samples?

Sample charges are refunded when a formal order is placed. Additional molds for samples are charged separately.