How should lifting chains be inspected and maintained?

Daily visual inspection for wear, nicks, stretch, or corrosion is mandatory. Use a go/no-go gauge for elongation. Clean debris and apply oil. Maintain an inspection log for each sling.

What is your MOQ (Minimum Order Quantity)?

Standard Chain Slings: MOQ 50 pieces. Bulk Chain by the Meter: MOQ 1,000 meters. Custom OEM Assemblies: MOQ 100 pieces (negotiable).

What is the lead time?

Standard Slings: 20-30 working days. Custom/Certified Orders: 35-45 working days.

Welded Long Link Chain Round Tie Link Trailer Steel Lifting Chain for Cargo Lifting

Name: Welded Long Link Chain Round Tie Link Trailer Steel Lifting Chain for Cargo Lifting
Brand: Weifang Shengao Machinery Co., Ltd.
SKU: 766928472

Shandong, ChinaWeifang Shengao Machinery Co., Ltd.

US$2.00-5.00

100 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Usage

Transmission Chain, Drag Chain, Conveyor Chain, Dedicated Special Chain

Material

Iron

Model NO.

SA-LC

Surface Treatment

Baking Paint

Feature

Heat Resistant

Chain Size

1/2"*3/32"

Structure

Roller Chain

Color

Solid Color

Item

Lifting Chain

Raw Material

Stainless Steel, Carbon Steel

Function

Conveyor Chain

Diameter

Diameter From 10mm to 42mm

Brand Name

Shengao, OEM

Standard or Nonstandard

Nonstandard

Factory

Over 15 Years Experience in Producing

OEM

Available

Dimension

10-100mm

Certificates

SGS, ISO9001:2008

OEM Service

Yes

Custom Made

Yes

Logo Printing

Customized

MOQ

10-1000PCS

Free Sample

Yes

Transport Package

Plywood Box

Specification

SGS

Trademark

Shengao

Origin

Weifang City, Shandong Province, China

HS Code

87089910

Production Capacity

50000PCS/Month

Key features

Comprehensive Grade Options: Manufactures Grade 80 and Grade 100 alloy lifting chains for high-performance overhead lifting.

Global Standard Compliance: Certified to ASME B30.9, EN 818-2/5, ISO 7593, DIN, NACM, BS, and JIS standards.

Custom OEM Capabilities: Offers full customization including size, grade, fittings, and logo printing based on client designs.

High Safety Factor: Features a 4-fold safety factor relative to proof load for Grade 80 and Grade 100 chains.

Advanced Surface Treatments: Offers hot-dip zinc, dacromet, oil coating, and other treatments for corrosion resistance.

Rapid Response Support: Technical inquiries and complaints are replied to within 12 hours with 24/7 hotline availability.

Flexible MOQ Options: Low MOQ of 50 pieces for standard slings and 100 pieces for custom OEM assemblies.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Weifang Shengao Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.57h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.

Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.

After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.

Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.

Product Q&A

Q:What types of lifting chains do you manufacture?

We specialize in high-performance alloy steel lifting chains for industrial applications: Grade 80 & Grade 100 Alloy Lifting Slings, Single/Double/Triple/Quad Leg Slings, Endless (Grommet) Slings, and Welded & Mechanical Assembly Lugs.

Q:What is the difference between Grade 80, Grade 100, and Grade 30/43?

Grade 30/43 is for general purpose tie-downs, not overhead lifting. Grade 80 is the standard for overhead lifting (heat-treated alloy). Grade 100 is high-performance, stronger than Grade 80, allowing smaller diameter chains for the same load.

Q:How is the Working Load Limit (WLL) determined?

WLL is calculated as Minimum Breaking Force divided by Safety Factor. Standard safety factor is 4:1 for Grade 80 and 4:1 (or 5:1) for Grade 100. WLL is derated based on sling angle.

Q:How do I select the correct chain size and configuration?

Selection requires knowing the load weight, lifting angle, type of hitch (Basket, Choker, Vertical), and environment. We recommend consulting a qualified rigger or using our online WLL calculator.

Q:How do I request a quote?

Provide Chain Grade (80 or 100), Diameter, Sling Configuration, Length, Required WLL, Type of end fittings, and any required certifications for a precise quote.