Qingdao Haosail Machinery Co., Ltd.

In industrial lifting, construction, logistics, and equipment installation, lifting slings are one of the most widely used rigging products. Thanks to their light weight, flexibility, and ability to protect load surfaces, textile slings have become an essential solution for safe and efficient lifting. However, improper selection or misuse can lead to serious safety risks.

This article, prepared by Qingdao Haosail Machinery Co., Ltd., provides a practical guide on how to select, use, and maintain lifting slings, helping users improve safety and extend product service life.

1. Common Types of Lifting Slings

1.1 Webbing Slings (Flat Slings)

Material: Mainly Polyester (PES)

Key Features:

Lightweight and flexible

Non-damaging to painted or finished surfaces

Easy to handle and store

Typical Applications:

Machinery

Finished metal products

Fragile or precision equipment

1.2 Round Slings

Structure: High-strength fiber core with a protective outer sleeve

Key Features:

Even load distribution

High safety factor

Excellent flexibility for irregular loads

Color-coded capacity for easy identification

Typical Applications:

Heavy equipment

Steel structures

Molds and large components

2. How to Choose the Right Lifting Sling

2.1 Determine the Working Load Limit (WLL)

Always calculate the actual load weight before lifting

Select a sling with sufficient safety margin

Consider load reduction factors for different lifting methods:

Straight lift

Choker hitch

Basket hitch

Never exceed the rated Working Load Limit indicated on the sling label.

2.2 Select the Proper Material

Polyester (PES): Excellent abrasion resistance and chemical stability, most commonly used

Nylon (PA): High elasticity, suitable for shock loads but less resistant to acids

Polypropylene (PP): Lightweight and economical, but lower strength

For chemical plants, ports, or outdoor environments, resistance to corrosion, moisture, and UV exposure should be carefully evaluated.

2.3 Match the Sling to the Lifting Conditions

Check if the load has sharp edges or corners

Use edge protectors or sleeves when necessary

Ensure the sling length and configuration match the lifting points

3. Correct Use of Lifting Slings

3.1 Pre-Use Inspection

Before each operation, inspect the sling for:

Cuts, tears, or broken fibers

Burns caused by heat or welding sparks

Chemical damage or discoloration

Missing or unreadable identification labels

If any damage is found, the sling must be removed from service immediately.

3.2 Proper Lifting Practices

Keep the sling evenly loaded

Avoid twisting, knotting, or over-tightening

Use protective accessories when contacting sharp surfaces

3.3 Safety During Operation

Never drag loads with lifting slings

Do not allow personnel to stand under suspended loads

Do not use lifting slings for towing or binding purposes

4. Maintenance and Storage

Proper maintenance significantly extends sling service life:

Clean slings after use

Store in a dry, ventilated area away from direct sunlight

Avoid exposure to extreme temperatures or corrosive substances

Establish regular inspection and retirement procedures

5. About Qingdao Haosail Machinery Co., Ltd.

Qingdao Haosail Machinery Co., Ltd. is a professional manufacturer and exporter of rigging and lifting products, serving global customers in construction, logistics, offshore, and industrial lifting sectors. All our products are manufactured in compliance with international standards such as EN, ISO, and ASME, ensuring consistent quality, safety, and performance.

Our Lifting Sling Product Range

We offer a comprehensive range of lifting sling solutions to meet different lifting requirements and working conditions, including:

Webbing Slings (single ply, double ply, eye-to-eye, endless type)

Round Slings with color-coded capacities

Heavy-Duty Lifting Slings for industrial and construction applications

Customized Slings with special lengths, capacities, labels, or protective sleeves

Edge Protectors and Sling Accessories to enhance safety and service life

Whether for light-duty handling or heavy lifting operations, Qingdao Haosail provides reliable, cost-effective, and application-oriented lifting sling solutions. By choosing the right sling products and following proper lifting practices, users can significantly improve operational safety and efficiency.

Qingdao Haosail is committed to being your long-term partner for high-quality lifting slings and complete rigging solutions.