What payment methods do you accept?

We accept T/T, Western Union, and PayPal. For high-value orders, we also accept L/C payment.

Where is your factory located?

We are a factory located in Zhongshan, China, an exporting major city, only 2 hours' drive from Hong Kong or Guangzhou.

Can you provide customization services?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization options.

Heavy Duty Coil Compression Springs for Mining Machinery

Name: Heavy Duty Coil Compression Springs for Mining Machinery
Brand: Zhongshan Rich Gift Limited
SKU: 809555595

Guangdong, ChinaZhongshan Rich Gift Limited

US$1.00

1-999 Pieces

US$0.25

1,000-9,999 Pieces

US$0.05

10,000+ Pieces

Product profile

Customization

Available

Function

Pressed, Phonation, Buffer, Drive, Restoration, Measurement

Material

Steel

Model NO.

heavy duty spring

Usage

Industrial, Auto, Furniture, Motorcycle, Home Appliance, Train

Load Type

Compression

Production Process

Hot Roll

Shape

Coil

Leaf

Components/Washer/Clamp Force Spring Torque Force

Wave

Railway/Auto Suspension Steel Constant Force Sprin

Auto

Conical Compression Spring Mould Spring

Industrial

Auto Lower Spring Leaf High Temperature Wave

Mechanical

Performance Spring Coil Metal Compression

Stainless Steel

60si2mn/55crsi/50crva Auto Industrial Mechanical

Flat

Steel Flat Spiral Spring Valve Spring Stainless St

Auto Return

Custom Spring Product Flat Auto Return Customized

Precision

Black/Replacement Precision Spiral Spring

Spiral Spring

Steel Flat Spiral Spring Big Small Manufacturer

Transport Package

OPP Bag/Cartons/Wooden Case

Specification

Customized

Trademark

RichGift

Origin

China Zhongshan

HS Code

73202090

Production Capacity

50000PCS/Day

Key features

Wide Material Selection: Available in SWC, SUS, SWP, phosphor copper, 60Si2Mn, 50CrVA, and alloy wires.

Customizable Wire Diameter: Wire diameter ranges from 0.04mm to 60.0mm, with customization options available.

Versatile Industrial Application: Suitable for electronics, toys, locks, watches, bicycles, kitchen appliances, and vehicles.

Certified Quality Standards: Complies with ISO9001:2008, BV, and SGS reports for RoHS and REACH test standards.

Fast Sample Delivery: Common samples delivered in 7-10 days; urgent samples available in just 3 days.

Low or No MOQ: Most products have no Minimum Order Quantity, with free samples available upon request.

Competitive Pricing: Offers very competitive DHL door-to-door prices and low FOB charges in southern China.

Expert Design Team: 5-person design team established in 2011, cooperating with global brands like BMW and Audi.

Company profile

High Repeat Buyers ChoiceExperienced TeamFull Customization100% Finished Products Inspection

Zhongshan Rich Gift Limited

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: Confidential CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤6.96h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and R&D/ODM capabilities, including recent new-product activity, and reports OEM service for well-known brands. It has manufacturing equipment, a 1,200 m² facility, in-stock capability, traceable raw-material identification, quality assurance, and stated lead times within 15 workdays in both peak and off-season. However, several operational controls are documented only as procedures without records, and there is no valid manufacturing-capacity contract with related subcontractors. Overseas support is limited: no overseas warehouse, showroom, agents, branches, or prior offline trade-show participation are reported. Financial credibility cannot be assessed because the supplied financial fields contain only years rather than financial results. No certifications or specific customer cases are identified.

Supplier typeThe supplier’s stated business scope includes hardware manufacturing, development, wholesale and retail, along with sales of plastic, leather, electronic and lighting products. Its commercial coverage spans multiple categories, while the 1,200 m² manufacturing plant indicates a manufacturing-oriented supplier rather than only a trading entity.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and supports customization from samples and designs through full and flexible customization. However, it reports no available SDK, which may limit certain development or integration scenarios, although the broader evidence supports an innovation capability.

Production capacityProduction resources include yarn-splitting, braiding, laser-cutting, printing, and thermal-transfer equipment, supported by a 1,200 m² plant, inventory capability, 30 qualified service-capability suppliers, and stated lead times within 15 workdays. A material control weakness is that no valid manufacturing-capacity contract exists with related subcontractors, and finished-product inspection instructions lack written records.

Customization capabilityBoth records explicitly list customization from samples, customization from designs, full customization, minor customization, and flexible customization. The supplier also reports R&D capability, recent new products, and ODM availability, providing direct evidence of broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of brand-client experience. However, no brand names, project descriptions, order history, or independently verifiable case details are supplied, so the depth of its customer-case record cannot be assessed.

Product Q&A

Q:What materials are available for these springs?

We offer SWC, SUS, SWP, phosphor copper, 60Si2Mn (9260 or SUP6), 50CrVA (6150 or SUP10), 60Si2CrA (9262 or SUP12), music wire, and various alloys.

Q:What is the range of wire diameters?

The wire diameter ranges from 0.04mm to 60.0mm, and we can also provide customized sizes.

Q:What certifications do your products have?

Our products comply with ISO9001:2008, and we provide BV or SGS reports for RoHS and REACH test standards.

Q:What is the lead time for samples and production?

Common samples take 7-10 days and production 15 days. Urgent samples take 3 days and production 7 days. Mass production under 5,000pcs takes less than 14 days.

Q:Is there a Minimum Order Quantity (MOQ)?

For most products, we have no MOQ. We can provide free samples as long as you cover the delivery charge.