What industries use these drag chains?

They are widely used in bulk material transport, agriculture, waste recycling, thermal power plants, and mining.

Heavy Duty Wd Series Welded Steel Drag Chain for Scraper Conveyor Systems

Name: Heavy Duty Wd Series Welded Steel Drag Chain for Scraper Conveyor Systems
Brand: Qingdao Star Machine Technology Co., Ltd.
SKU: 1996640221

Shandong, ChinaQingdao Star Machine Technology Co., Ltd.

US$2.10

10-99 Feet

US$1.80

100-999 Feet

US$1.50

1,000+ Feet

Sample price:US$30.00/foot.Request sample

Product profile

Customization

Available

Standard or Nonstandard

Standard

Application

Conveyer Equipment, Food Machinery, Mining Equipment, Agricultural Machinery, Sawmill, Power Plant, Bulk Handling

Model NO.

WD102, WD104, WD110, WD112, WD113, WD116, WD118, W

Surface Treatment

Shot Blasting / Anti-Rust Oil / Black Painted

Structure

Welded Chain

Material

Alloy

Type

Cranked Link Chain

Warranty

1 Year

After Sales Service

Online Technical Support

Certification

ISO9001,SGS

Delivery

15-25 Days

Usage

Heavy-Duty Bulk Conveying

Color

Natural / Black / Zinc

Chain Model

Wd102, Wd110, Wd112, Wd116, Wd480, Wdh122

Heat Treatment

Case-Hardened Pins & Barrels, Heat-Treated Sidebar

Attachment

C3, C4, Wing, Flight & Scraper Attachments

Transport Package

Carton Case, Pallet and Wooden Box

Specification

WD102-WD480, WDH122 (Pitch: 5.0" - 8.0" / 127mm

Trademark

SMCC OR NO MARK

Origin

China

HS Code

7315119000

Production Capacity

50000000 Per Year

Key features

Heavy-Duty Welded Steel Construction: Robust robotic welded barrels and high-strength sidebars deliver superior ultimate tensile strength and exceptional shock load resistance.

Custom Scraper & Wing Attachments: Fully compatible with standard WD/WDH configurations; available with custom welded wings, scraper flights, wear shoes, and C4 attachments.

Induction Hardened Wear Resistance: High-frequency heat-treated alloy pins and through-hardened barrels provide maximum abrasive resistance and extended service life.

Engineered for Harsh Bulk Material Conveying: Specially designed for severe operating conditions in sawmills (timber/bark), power plant ash handling, grain elevators, and mining scrapers.

Precision Pitch Control & Anti-Elongation: Tight pitch tolerance manufacturing minimizes initial elongation, prevents sprocket mismatch, and ensures smooth conveyor operation.

Global Standards & Complete Interchangeability: Strictly manufactured under ISO 9001 standards; fully interchangeable with standard WD102, WD110, WD120, WD480, and WDH series.

Flexible OEM & Drawing Customization: Supports custom sidebar thickness, special chain pitches, reinforced welding seams, and corrosion-resistant protective coatings per customer drawings.

Factory Direct Pricing & 1-Year Warranty: 100% pre-shipment breaking load inspection, direct factory-grade pricing, 1-year warranty, and 24/7 engineering technical support.

Company profile

Qingdao Star Machine Technology Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 1997-07-16Nearest Port: QINGDAO, TIANJIN, SHANGHAIAverage Response Time: ≤1.74hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryThe supplier is a limited company in Liaocheng, Shandong, China, supplying valves and electronic sensors with 23 employees. It identifies as a professional technical supplier and provides 3D design, sample-based customization, ODM, and OEM services. Quality processes include assurance, raw-material traceability, documented inspections, complaint handling, and corrective-action procedures. The supplier has inventory capability, testing equipment, export experience, and a high stated export share, but lacks an effective contract with related manufacturing subcontractors, overseas warehouses, overseas showrooms, and an available SDK. No new products were reported in the past year, while financial credibility and customer-case evidence remain insufficient for firm assessment.

Supplier typeThe supplier is explicitly identified as a professional technical supplier, operates as a limited company, and offers valves and electronic sensors. It also provides ODM and OEM services, indicating a product manufacturer or design-manufacturing supplier rather than a general trading-only entity.

After-Sales capabilityThe supplier states that its global service network provides timely after-sales technical services and reports a clear, followed customer-complaint procedure. However, it has no overseas warehouse or showroom, which may limit local service infrastructure, although the evidence does not establish that after-sales performance is inadequate.

Production capacityThe supplier reports inventory capability, computer-controlled CNC machines, extensive spare-parts inventory, finished-product inspection procedures, and testing equipment including salt-spray and tensile-testing machines. However, there is no valid contract between the factory and related subcontractor, creating a documented manufacturing-governance deficiency despite other production resources.

Customization capabilityThe supplier explicitly offers sample-based customization, customer-specific product design and development, 3D software design, OEM customization, and ODM services. These repeated statements provide direct evidence of customization capability for specific applications.