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Views: 0 Author: Site Editor Publish Time: 2026-08-03 Origin: Site
A webbing sling color is a quick visual cue, not a complete lifting instruction. In many textile-sling systems, a familiar color sequence helps a rigger recognize the nominal vertical working load limit (WLL) at a glance. That convenience can reduce selection errors, but it cannot replace the sling identification tag, the manufacturer’s load chart, or a lift plan. The actual capacity depends on the sling’s construction, hitch, angle, fittings, and condition. This guide explains how to use color coding intelligently, where it applies, and what to check before a load leaves the ground.
A color normally communicates a nominal capacity class, not permission to lift any load of that mass.
Read the sling identification tag before use; it identifies the manufacturer, material, rated capacities, and applicable configuration.
Hitch type and sling angle can materially change tension and allowable capacity.
Color conventions vary by market, standard, and product range, so never mix slings by color alone.
A faded, cut, heat-damaged, or untagged webbing sling must not be justified by its original color.
Textile slings are frequently handled in busy yards, fabrication shops, warehouses, ports, and construction projects. A color system gives the lifting team a fast first check when several sling sizes are stored together. A violet sling is commonly associated with a lower capacity class than a blue or orange sling, for example. That visual difference supports inventory control and reduces the chance that a plainly undersized sling is selected by mistake.
The important word supports. The color is not the rating itself. A webbing sling may have different ratings in vertical, choke, and basket hitches. It may be one ply or more than one ply, have eyes or be endless, and be made for a particular market’s labelling and standard requirements. Hardware, wear pads, a choker angle, and the position of a seam can also affect the permitted arrangement. A clear color is useful when the tag is visible; it is dangerous when someone treats it as a substitute for the tag.
Many products sold to EN 1492-1 conventions use the widely recognized color progression below. The capacities shown are common nominal vertical WLL classes in tonnes for the applicable textile-sling system. They are a training aid only: the product tag and supplier documentation remain the controlling source for a particular sling.
Common color | Typical nominal vertical WLL class | What a rigger should do next |
|---|---|---|
Violet | 1 t | Confirm tag, length, hitch capacity, and lift plan |
Green | 2 t | Check construction and whether a choker reduction applies |
Yellow | 3 t | Verify angle and edge-protection requirements |
Grey | 4 t | Confirm all legs share load as planned |
Red | 5 t | Read the tag before selecting hardware and hitch |
Brown | 6 t | Review load balance, sharp edges, and D/d effects |
Blue | 8 t | Confirm the marked WLL for the exact configuration |
Orange | 10 t | Treat as a high-consequence lift; follow the lift plan |
The sequence is helpful because it makes a visual selection easier, but it is not universal. North American products, custom-built slings, supplier-specific product lines, and older stock may be marked differently. Some colors may identify a material, a protective treatment, a customer’s inventory category, or a feature rather than a capacity. A black stripe, tracer yarn, sleeve, or painted marking should never be assumed to establish a lifting sling capacity. When a color and label appear inconsistent, stop and resolve the difference with the manufacturer or a qualified person.
Before use, locate and read the sling identification tag. It should be durable, legible, and permanently attached as required by the applicable rules. It commonly states the manufacturer or trademark, material, rated capacities for different hitches, length, serial or traceability information, and standard or warnings. The tag is especially important when the sling is covered by a protective sleeve, has been used in a severe environment, or does not follow a familiar color system.
The tag connects a visual product to a documented rating. If it is missing or illegible, the team cannot reliably identify the exact rated capacity, construction, or product history. Do not guess from width, thickness, color, or a similar sling nearby. Isolate the sling and follow the site’s inspection and disposition procedure. A color code should make the tag easier to cross-check, not make the tag optional.
Textile webbing spreads contact over a broad, flexible surface, which can be valuable around large diameters and finished components. However, a soft sling still needs protection from sharp corners, burrs, rough welds, and abrasive movement. The color provides no information about a load’s edges, centre of gravity, temperature, chemical exposure, or whether a turn of the sling will slide during the lift.
For a painted machine housing, polished cylinder, or coated fabricated part, consider the sling contact area and the need for clean, compatible protective material. For a plate with a sharp corner, use edge protection designed for the hazard and do not allow a capacity color to create a false sense of security. D.L.T Sling’s polyester webbing sling guidance is a useful starting point when comparing textile handling options, but the lift must still be planned for the actual part and environment.
Start with the color as an initial visual filter, then move through a disciplined verification sequence. First identify the load weight from a drawing, nameplate, bill of materials, or controlled calculation. Then identify the centre of gravity, pick points, required hitch, number of legs, and intended sling angles. Select a sling whose marked capacity covers the calculated demand in that exact configuration. Confirm that compatible hooks, shackles, and lifting points are also rated for the arrangement.
Next, inspect the sling. Look along the entire webbing surface, both eyes or all accessible parts of an endless sling, load-bearing stitching, sleeves, and fittings. Check the tag. Look for cuts, abrasion, broken yarns, burns, chemical stiffening, contamination, distorted fittings, and unauthorized knots. Keep the sling off sharp edges until protection is installed. Complete a controlled trial lift only when the lift plan permits it: raise the load just enough to verify balance and security, then continue under the assigned signaler’s control.
This approach makes color useful without making it decisive. It also creates a consistent handover between the person selecting rigging and the person operating the crane or hoist.
Procurement teams can benefit from a color-coded stock system when it is matched to real lifting work. Map the expected load range, typical hitches, required lengths, common environments, and likely edge hazards. Avoid building an inventory around capacity color alone. Two slings of the same color can have different eye construction, length, protective treatment, or marked ratings in a particular configuration.
For recurring work, pair the sling store with a simple inspection area, a clean dry storage method, and a documented record system. Separate slings awaiting inspection, serviceable slings, and rejected slings. Put the load chart and site procedure where users choose rigging, not only in an office manual. If the work frequently involves special geometries, a flat webbing sling product specification can help the buyer discuss construction and application needs with the supplier before purchase.
NANJING D. L. T SLING Co., Ltd. can provide product information for its range, but the responsible employer and lift team must determine whether a specific item is suitable for a specific lift. That division of responsibility is good practice: product data informs the selection; competent planning controls the operation.
One common error is selecting a sling after looking only at the load’s total mass. The correct calculation needs the hitch, leg angle, centre of gravity, and load path. Another is treating the color as a global standard across every brand and geography. A third is assuming that a clean-looking sling is serviceable even though its label cannot be read.
Teams also get into trouble when they calculate the sling but overlook the hardware. A shackle pin can be overloaded by side loading; an eye can be forced over an undersized hook; a basket hitch can bear on a sharp edge; and two legs may not share load equally if the centre of gravity is offset. The color says none of this. The rigging arrangement, inspection result, and the rated components must work together.
Webbing sling colors improve speed and recognition in lifting operations, particularly when several capacity classes are stored in the same area. Their value is practical, but limited: they identify a likely capacity class, not a complete safe-lifting solution. Always use the marked tag and the manufacturer’s chart to confirm the working load limit for the planned hitch, angle, and sling type. Then inspect the webbing and fittings, protect vulnerable edges, and control the lift. When these checks agree, the color code becomes a useful safety aid instead of a shortcut.
No. A familiar textile-sling sequence is common in many markets, but product ranges and regional practices vary. Read the individual sling tag and its manufacturer documentation.
Not automatically. Green often corresponds to a 2 t vertical capacity class in a common color system, but the marked capacity may change with the hitch, angle, construction, and applicable standard.
No. The tag is needed to verify the exact rated capacities, manufacturer, identification, and warnings. A missing or unreadable tag is a reason to stop and follow the site’s disposition procedure.
The webbing is bent and tightened around the load, creating a different loading condition than a straight vertical hitch. Use the manufacturer’s choker rating and follow its angle limitations.
Not as a blanket rule. A basket can support the load with two parts of the sling, but its allowable capacity depends on the manufacturer’s rating, basket angle, load contact, balance, and edge conditions.
Do not use the color as identification. Inspect the webbing and read the tag; if the label is missing or illegible, remove the sling from selection until it is evaluated under the site procedure.
