LDR EA-A Heavy Duty Double Sleeve Round Sling

Product Overview

LDR EA-A Heavy Duty Round Sling is a premium endless polyester lifting sling engineered specifically for high-tonnage and high-frequency industrial rigging operations. Constructed as a rugged Double Sleeve Round Sling with a high-tenacity polyester yarn core, the EA-A model delivers superior abrasion resistance, enhanced safety margins, and an extended service life compared to standard single-sleeve options.

As a leading global round sling supplier, LDR provides rigorous quality assurance. Every single product is a CE Certified Lifting Sling, ensuring total compliance and safety for demanding global industrial applications and heavy-lift environments.

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Key Technical Features & Advantages

• Heavy-Duty Double-Sleeve Design: Equipped with a dual-layer woven protective sleeve that significantly increases wear, cut, and abrasion resistance under harsh field conditions.

• High-Tenacity Polyester Core: Premium internal yarn core provides exceptional strength-to-weight ratio with minimal elongation under maximum working load limits.

• Surface Protection: The soft, flexible structure contours to the load, ensuring even stress distribution and preventing marring or scratching on polished, delicate, or cylindrical surfaces.

• International Standardization: Fully compliant with the rigors of an EN1492-2 Round Sling and JB/T 8521 manufacturing standards. Color-coded according to international tonnage identification codes for quick, error-free field selection.

• Operational Safety: Non-conductive materials eliminate electrical grounding risks during critical lifts.

• Optional Upgrades: Custom anti-cut and specialized anti-abrasion edge protection sleeves are available upon request to meet specialized safety codes.

EA-A Polyester Endless Round Sling Specifications

The data below represents data for our standard polyester product range. In case you need other technical data, please contact us.

Code	Color	Single Max. Working Load Limit						2-Legs Max. Working Load Limit				Approx Width (mm)	Min Length (m)	Max Length (m)
		Upright	Choked	β				Upright 45°	Choked 45°	Upright 45°−60°	Choked 45°−60°
				0°−7°	7°−45°	45°−60°	45°
		1	0.8	2	1.4	1	0.7	1.4	1.12	1	0.8
EA-A-01	Purple	1000	800	2000	1400	1000	700	1400	1120	1000	800	40	1	100
EA-A-02	Green	2000	1600	4000	2800	2000	1400	2800	2240	2000	1600	50	1	100
EA-A-03	Yellow	3000	2400	6000	4200	3000	2100	4200	3360	3000	2400	60	1	100
EA-A-04	Gray	4000	3200	8000	5600	4000	2800	5600	4480	4000	3200	70	1	100
EA-A-05	Red	5000	4000	10000	7000	5000	3500	7000	5600	5000	4000	75	1	100
EA-A-06	Brown	6000	4800	12000	8400	6000	4200	8400	6720	6000	4800	80	1	100
EA-A-08	Orange	8000	6400	16000	11200	8000	5600	11200	8960	8000	6400	90	1	100
EA-A-10	Orange	10000	8000	20000	14000	10000	7000	14000	11200	10000	8000	100	1	100
EA-A-12	Orange	12000	9600	24000	16800	12000	8400	16800	13440	12000	9600	110	1	100
EA-A-15	Orange	15000	12000	40000	28000	15000	14000	28000	22400	15000	12000	150	1	100
EA-A-20	Orange	20000	16000	60000	42000	20000	21000	42000	33600	20000	16000	180	1	100
EA-A-25	Orange	25000	20000	50000	35000	25000	17500	35000	28000	25000	20000	200	1	100
EA-A-30	Orange	30000	24000	60000	42000	30000	21000	42000	33600	30000	24000	200	1	100
EA-A-40	Orange	40000	32000	80000	56000	40000	28000	56000	44800	40000	32000	200	1	100
EA-A-50	Orange	50000	40000	100000	70000	50000	35000	70000	56000	50000	40000	220	1	100
EA-A-60	Orange	60000	48000	120000	84000	60000	42000	84000	67200	60000	48000	220	1	100
EA-A-80	Orange	80000	64000	160000	112000	80000	56000	112000	89600	80000	64000	260	1	100
EA-A-100	Orange	100000	80000	200000	140000	100000	70000	140000	112000	100000	80000	290	1	100

Industrial Applications & Capacity Selection Guide

The LDR EA-A heavy lift round slings are the industry standard for secure rigging across multiple sectors. Based on the Working Load Limit (WLL) and width specifications, we recommend the following model configurations for target industrial applications:

1. Light to Medium Duty Operations (1 Ton – 4 Tons)

• Applicable Models: EA-A-01 (Purple), EA-A-02 (Green), EA-A-03 (Yellow), EA-A-04 (Gray)

• Sling Width: 40mm to 70mm

• Target Applications: Automotive workshops, light manufacturing assembly lines, commercial HVAC installation, and general facility maintenance rigging (MRO).

2. Medium to Heavy Industrial Rigging (5 Tons – 10 Tons)

• Applicable Models: EA-A-05 (Red), EA-A-06 (Brown), EA-A-08 (Orange), EA-A-10 (Orange)

• Sling Width: 75mm to 100mm

• Target Applications: Steel logistics (handling bundled bars and plates), precision machinery installation (CNC lathe and injection molding tools), and standard crane rigging for construction sites.

3. High-Tonnage Industrial & Marine Engineering (12 Tons – 30 Tons)

• Applicable Models: EA-A-12, EA-A-15, EA-A-20, EA-A-25, EA-A-30 (High-Visibility Orange)

• Sling Width: 110mm to 180mm

• Target Applications: Heavy machinery manufacturing, shipyards and marine rigging (boat hulls, marine engines), mining conveyor drives, and onshore wind energy infrastructure assembly.

4. Ultra-Heavy Lift & Megaproject Rigging (40 Tons – 100+ Tons)

• Applicable Models: EA-A-40, EA-A-50, EA-A-60, EA-A-80, EA-A-100 (Heavy-Duty Wide Orange Slings)

• Sling Width: 200mm to 290mm (Maximum surface load distribution)

• Target Applications: Civil infrastructure megaprojects (concrete bridge girders, highway viaduct sections), power generation plants (steam turbines, ultra-high-capacity transformers), and offshore oil & gas platform rigging.

Instruction For Round Slings

• Mandatory Pre-Lift Inspection: Always check the entirety of the round sling for signs of wear, surface cuts, or tears before any lifting operation.

• Sharp Edge Safeguarding: Always utilize a dedicated heavy-duty protective sleeve or corner pads when rigging loads with sharp, abrasive, or rough edges to prevent friction failure.

• Sling Angle Optimization: Monitor and calculate the sling angle carefully during multi-leg hits. Ensure the working load limit (WLL) is appropriately adjusted for the specific lifting angle geometry.

• Zero Ground Contact & No Dragging: Never rest heavy loads directly on top of the sling jacket, and strictly prohibit dragging the load along the floor while rigged.

• Overload Prevention & Thermal Thresholds: Never exceed the rated Working Load Limit (WLL) of the specific model. Operate strictly within the designated temperature range.

• Acid Environments: Exercise extreme caution in areas with heavy chemical exposure. Consult LDR technical support regarding the polyester core's compatibility with specific acids, alkalis, or solvents.

• No Knotting or Twisting: Heavy lift round slings must never be knotted, twisted, or spliced together. Internal alignment of the yarn core must remain straight to distribute the load evenly.

• Immediate Decommissioning: Do not attempt to use or repair damaged slings. If the outer sleeve is compromised or the internal red core yarn is visible, immediately remove the sling from service.

RAW MATERIL WORKSHOP

After the raw materials enter the factory and undergo professional instrument processing and quality inspection, they can enter the next production workshop, and each batch of raw materials can be traced back to their source.

WEAVING WORK SHOP

The Webbing Sling Weaving Machine Is Imported From Switzerland Muller Brand, total 110 Sets Weaving Machines.

SEWING WORKSHOP
The Sewing Machine Are All Using Automatic And Intelligent Computer Sewing Machines, total 100 Set Sewing Machines.

FAQ

Q1: What specific industrial rigging applications are round slings used for?

A: Round slings are primarily utilized for securing, choking, and hoisting bulky, high-tonnage, or surface-sensitive industrial cargo. Their endless loop configuration and flexible design make them highly optimal for lifting cylindrical structures (such as steel pipelines) and handling highly polished heavy equipment components without inducing friction scratches or mechanical deformation.

Q2: What is the main structural difference between the LDR EA-A and EA-B round sling models?

A: The critical distinction lies in the engineering of the outer jacket. The EA-A model features a reinforced double-layer protective sleeve, providing significantly enhanced wear resistance, high puncture protection, and a dramatically extended service life in abrasive heavy-industrial environments. The EA-B model utilizes a standard single-layer sleeve, which is ideal for cost-effective, standard lifting tasks.

Q3: What variables dictate the service life of an industrial polyester lifting sling?

A: Structural longevity depends on critical field environmental factors, including daily cycle frequency, UV radiation exposure, chemical presence, and strict adherence to edge protection on sharp-cornered cargo. Due to the high-strength double-layer weave on the LDR EA-A series, these slings minimize structural wear and deliver a drastically lower total cost of ownership (TCO) compared to standard commercial slings. Regular inspections according to EN 1492-2 compliance rules are mandatory before executing any lifting workflow.

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