How should lifting chains be inspected and maintained?

Daily visual inspection for wear, nicks, or deformation is mandatory. Use a go/no-go gauge for elongation. Clean debris and apply oil to prevent corrosion. 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.

Custom Length Lifting Chain Grade 80/100 Alloy Steel Chain for Marine

Name: Custom Length Lifting Chain Grade 80/100 Alloy Steel Chain for Marine
Brand: Weifang Jufeng Metal Products Co., Ltd.
SKU: 759372902

Shandong, ChinaWeifang Jufeng Metal Products Co., Ltd.

US$0.50-1.00

500 Meters

Sample price:US$0.80/meter.Request sample

Product profile

Customization

Available

Usage

Construction

Material

Alloy

Model NO.

JF-PR

Surface Treatment

Electroplating

Feature

Heat Resistant

Chain Size

1/2"*3/32"

Structure

Welded Chain

Color

Multi-Colored

Item

Chain

Part Type

Lifting Accessories

Export Markets

Global

Shipping Port

Qingdao

Place of Origin

China

Transport

by Sea

Packing

Wooden Cases or Steel Drum

Weight

Customized

Sample

7 Days Ready

Processing

as Per Your Drawing

Materials

as Per Request

After-Sale Service

Definetly

Certificate of Origin

China

ODM/OEM

Accepted

Transport Package

Plywood Box

Specification

As your requirement

Trademark

jufeng

Origin

Weifang City, Shandong Province, China

HS Code

7326199000

Production Capacity

10000PCS/Month

Key features

High-Grade Alloy Material: Manufactured from Grade 80 and Grade 100 alloy steel for superior strength and safety.

Customizable Dimensions: Length and width of chain links are adjustable to meet specific customer requirements.

Comprehensive Safety Standards: Certified to EN818-2, ISO3077, JIS, and ASME B30.9 standards with 4:1 safety factor.

Versatile Surface Finishes: Available in black tempered, electro galvanized, hot dip galvanized, and painted finishes.

OEM and ODM Services: Full in-house tooling design and fabrication capabilities for custom manufacturing.

Traceability Marking: Each chain is embossed with markings for easy identification and full traceability.

Rapid Sample Delivery: Samples are ready within 7 days, with freight charges applicable before the first order.

Global Shipping Options: Export from Qingdao Port with flexible logistics and tailor-made packaging solutions.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceMulti-language Pioneer

Weifang Jufeng Metal Products Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedExport Year: 9 Years CertifiedNearest Port: Qingdao Port, Shanghai PortAverage Response Time: ≤2.91h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWeifang Jufeng Metal Products Co., Ltd. is a China-based limited company established in 2017, with inconsistent employee records of 5, 29, and quality-control staffing of 6–10. It offers metal stamping, fabrication, welding, punching, automotive, and related products, and is identified as a trading company despite describing its own-factory production capability. The supplier reports three production lines, stated output capacities across several product categories, broad export-market coverage, and port access through Qingdao, Tianjin, and Shanghai. It holds an ISO9001:2015 certificate and reports quality inspections during production. R&D evidence is positive: one year of total R&D-engineer experience is stated, new products were developed in the past year, and ODM plus multiple customization methods are available. However, there is no available SDK, no overseas showroom, no overseas agents or branches, no offline trade-show participation, and no overseas service countries reported. Financial...

CertificationsThe supplier explicitly reports holding an ISO9001:2015 certificate. This provides direct evidence of a certified quality-management system, although no certificate number, scope, or issuing body is supplied.

R&D capabilityThe supplier reports one year of total R&D-engineer experience, new products within the past year, ODM availability, and multiple customization methods. These are positive indicators of active product development, while the absence of an available SDK limits evidence for software or platform integration capability.

Production capacityThe supplier reports three production lines and category-specific capacities for mailboxes, metal fabrication parts, cabinets, stamping parts, and auto parts, alongside broad export-market coverage and access to Qingdao, Tianjin, and Shanghai ports. However, employee counts vary across records and the supplier is also classified as a trading company, so the scale and direct-manufacturing structure require verification.

Customization capabilityThe supplier explicitly offers OEM, ODM, smaller quantities, flexible customization, minor and full customization, customization from designs, and customization from samples. It also claims to provide exclusive and unique solutions, directly supporting a broad customization offering.

Product Q&A

Q:What types of lifting chains do you manufacture?

We specialize in high-performance alloy steel lifting chains: 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. Grade 100 offers higher strength-to-weight ratio, 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 the Safety Factor. For Grade 80 and 100, the standard safety factor is 4:1 (or 5:1 depending on region). 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 configuration (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 the Chain Grade (80 or 100), Diameter, Sling Configuration, Length, Required WLL, Type of end fittings, and any required certifications for a precise quote.