What is your sample policy?

We can supply samples if we have ready parts in stock, but customers must pay the sample cost and courier cost. Sample orders are welcome.

Do you test all goods before delivery?

Yes, we conduct 100% testing on all goods before delivery to ensure quality.

How do you ensure long-term business relationships?

We maintain good quality and competitive prices to ensure customer benefits. We respect every customer as a friend and sincerely conduct business with them.

Double Plus Chains Hollow Pin Chains

Name: Double Plus Chains Hollow Pin Chains
Brand: Qingdao Wolff Chain Drive Co., Ltd.
SKU: 1935029431

Shandong, ChinaQingdao Wolff Chain Drive Co., Ltd.

US$1.00-50.00

500 Meters

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Standard or Nonstandard

Standard

Application

Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery

Surface Treatment

Oil Blooming

Structure

Hollow Chain

Material

Carbon Steel

Type

Short Pitch Chain

Carbon Steel

Steel

City

Qingdao

R&D

OEM

Business Type

Factory

Color

as Your Request

Standard

ANSI

Transport Package

Carton

Trademark

DOVON/DECHO

Origin

China

HS Code

7315119000

Key features

Advanced Manufacturing Tech: Utilizes steel ball hole extrusion, shot peening, and automated lubrication for superior quality.

Comprehensive Quality Control: 100% testing before delivery including metallography, tensile strength, and fatigue tests.

Wide Application Range: Suitable for textile, garment, conveyor, packaging, motorcycle, food, marine, and mining machinery.

Customization Support: OEM service available; color and specifications can be customized as per customer request.

Multiple Standard Options: Available in GB/T, DIN, ANSI, ISO, BS, and JIS standards with various model numbers.

Durable Material: Made from high-quality carbon steel with oil blooming surface treatment for longevity.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryQuality Assurance

Qingdao Wolff Chain Drive Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Full Customization CertifiedExport Year: 16 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.66h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a Qingdao-based trading company associated with four production lines and assembly and pressing equipment. It has 16 years of export experience, self-operated import/export rights, and export sales accounting for 51%–70% of total sales, but its stated primary export market is domestic. Production-related evidence includes six to ten quality-control staff, in-stock capability, and lead times within 15 working days in both peak and off-season periods. However, no valid manufacturing-capacity contract exists with related subcontractors, and no supplier management-system certification is reported. Quality assurance is stated, but corrective-action and complaint-handling procedures lack written procedures or records. The supplier offers full customization, while R&D evidence is weak: no new products in the past year, no ODM, OEM for popular brands, or SDK capability. No Fortune 500 partnerships, overseas agents, branches, showrooms, warehouses, or offline trade-show participation...

CertificationsThe supplier management-system certification field is reported as NIL. Although quality assurance is stated elsewhere, no formal management-system certification is evidenced.

After-Sales capabilityThe supplier has in-stock service capability and accepts multiple payment and quotation terms, but it has no overseas warehouse, showroom, agents, or branches. Complaint handling and corrective/preventive action lack written procedures or records, and service-capability assessment also lacks documented procedures.

R&D capabilityThe supplier reports no new products during the past year, no ODM service, no OEM capability for popular brands, and no available SDK. Total R&D engineer experience is listed as 1, which does not establish strong innovation capacity.

Production capacityThe supplier operates or is associated with four production lines, has assembling and pressing machines, six to ten quality-control staff, in-stock capability, and stated lead times within 15 working days in both seasons. However, it lacks a valid manufacturing-capacity contract with related subcontractors, so production control and capacity assurance are not fully established.

Customization capabilityFull customization is explicitly offered through the design-services capability. The absence of ODM service and recent new-product development limits broader R&D support, but it does not negate the stated customization service.

Client casesNo partnerships with Fortune 500 companies are reported. The slices also provide no named customer cases or other verified customer references, so the supplier’s customer-case strength cannot be established.

Product Q&A

Q:What are your terms of packing?

Generally, we pack our goods in single color boxes. If you have special requests, please negotiate in advance, and we can pack according to your requirements.

Q:What are your terms of payment?

T/T 30% as deposit, and 70% before delivery. We will show you photos of the products and packages before you pay the balance. Other terms can be negotiated.

Q:What are your terms of delivery?

We accept EXW, FOB, CFR, and CIF terms.

Q:How long is the delivery time?

Generally, it takes 25 to 30 days after receiving the advance payment. The specific time depends on the items and order quantity.

Q:Can you produce according to samples?

Yes, we can produce by your samples or technical drawings. We can also build the necessary molds and fixtures.