Chain sling Grade 100 TOSL

3-pointsteel alloy

Introduction
Grade 100 TOSL Chain Sling is a triple-leg lifting assembly manufactured from quenched and tempered Grade 100 alloy steel chain and components. The sling is equipped with a quad oblong master link assembly on the top and three Grade 100 self-locking hooks on the bottom, providing secure three-point load attachment for heavy-duty overhead lifting applications. Compared with Grade 80 chain slings, Grade 100 slings provide approximately 25% higher Working Load Limit for the same chain size while maintaining a 4:1 design factor. Self-locking hooks automatically close and lock under load to reduce the risk of accidental disengagement. Each sling is permanently identified with a serial number, chain size, grade, exact sling length, and Working Load Limit for traceability.

Product Configuration Code
T = Triple Leg; O = Quad Oblong Master Link Assembly; SL = Self Locking (Safety) Hook. TOSL therefore refers to a Triple Leg Chain Sling fitted with a Quad Oblong Master Link Assembly on the top and Three Self Locking Hooks on the bottom.

Product Identification
Each sling is permanently identified with: Individual Serial Number; Chain Size; Chain Grade; Exact Sling Length; Working Load Limit (WLL). The serial number on the identification tag corresponds with the written certification and sales order record to ensure complete product traceability.

Parameter — Meter table
Header: Item NO. | Diameter of Lifting Chain (mm) | 1 Leg (ton) | 2 Legs (0°<α<45°) (ton) | 2 Legs (45°<α<60°) (ton) | 3 & 4 Legs (0°<α<45°) (ton) | 3 & 4 Legs (45°<α<60°) (ton) | Continuous Sling (ton)
Factor rows: 0°<α<45° Factor 1.0; 45°<α<60° Factor 1.4 (for 2 legs), 0°<α<45° Factor 1.0 (for 3&4 legs), 45°<α<60° Factor 2.1 (for 3&4 legs), Continuous Sling Factors: 1.5 and 1.6.
Rows:
TPL81841004 | 4 | 0.63 | 0.88 | 0.63 | 1.32 | 0.94 | 1
TPL81841005 | 5 | 1 | 1.4 | 1 | 2.1 | 1.5 | 1.6
TPL81841006 | 6 | 1.4 | 1.96 | 1.4 | 2.94 | 2.1 | 2.24
TPL81841007 | 7 | 1.9 | 2.66 | 1.9 | 3.99 | 2.85 | 3.04
TPL81841008 | 8 | 2.5 | 3.5 | 2.5 | 5.25 | 3.75 | 4
TPL818410010 | 10 | 4 | 5.6 | 4 | 8.4 | 6 | 6.4
TPL818410013 | 13 | 6.7 | 9.38 | 6.7 | 14.07 | 10.05 | 10.72
TPL818410016 | 16 | 10.3 | 14.4 | 10.3 | 21.6 | 15.4 | 16.4
TPL818410018 | 18 | 12.5 | 17.5 | 12.5 | 26.2 | 18.75 | 20
TPL818410019 | 19 | 14 | 19.6 | 14 | 29.4 | 21 | 22.4
TPL818410020 | 20 | 16 | 22.4 | 16 | 33.6 | 24 | 25.6
TPL818410022 | 22 | 19.4 | 27.1 | 19.4 | 40.7 | 29.1 | 31
TPL818410026 | 26 | 26.5 | 37.1 | 26.5 | 55.6 | 39.7 | 42.4
TPL818410028 | 28 | 30.5 | 42.7 | 30.5 | 64 | 45.7 | 48.8
TPL818410030 | 30 | 35.5 | 49.7 | 35.5 | 74.5 | 53.2 | 56.8
TPL818410032 | 32 | 40 | 56 | 40 | 84 | 60.6 | 64
TPL818410036 | 36 | 50 | 70 | 50 | 105 | 75 | 80
TPL818410038 | 38 | 56.5 | 78.4 | 56.5 | 118.6 | 84.7 | 90.4
TPL818410040 | 40 | 62.5 | 87.5 | 62.5 | 131.2 | 93.7 | 100
TPL818410045 | 45 | 81 | 113.4 | 81 | 170.1 | 121.5 | 130
TPL818410050 | 50 | 98 | 137.2 | 98 | 205.8 | 147 | 156.8

Parameter — Feet table
Header: Item No. | Diameter of Lifting Chain (in.) | 1 Leg (90°) (lbs) | 2 Legs Factor 1.4 (lbs) | 3 & 4 Legs Factor 1.0 / 2.1 (lbs) | Continuous Sling (lbs)
Rows:
TPL81841004 | 5/32" | 2,205 | 2,205 | 2,205 | 2,205 | 2,205 | 2,205
TPL81841005 | 3/16" | 2,205 | 2,205 | 2,205 | 2,205 | 4,409 | 4,409
TPL81841006 | 1/4" | 2,205 | 4,409 | 2,205 | 6,614 | 4,409 | 4,409
TPL81841007 | 9/32" | 4,409 | 6,614 | 4,409 | 8,819 | 6,614 | 6,614
TPL81841008 | 5/16" | 6,614 | 8,819 | 6,614 | 11,023 | 8,819 | 8,819
TPL81841010 | 3/8" | 8,819 | 13,228 | 8,819 | 17,637 | 13,228 | 13,228
TPL81841013 | 1/2" | 15,432 | 19,842 | 15,432 | 30,865 | 22,046 | 24,251
TPL81841016 | 5/8" | 22,046 | 30,865 | 22,046 | 48,502 | 33,069 | 35,274
TPL81841018 | 3/4" | 28,660 | 39,683 | 28,660 | 57,320 | 41,888 | 44,092
TPL81841019 | 3/4" | 30,865 | 44,092 | 30,865 | 63,934 | 46,297 | 48,502
TPL81841020 | 13/16" | 35,274 | 48,502 | 35,274 | 74,957 | 52,911 | 57,320
TPL81841022 | 7/8" | 41,888 | 59,525 | 41,888 | 90,390 | 63,934 | 68,343
TPL81841026 | 1" | 59,525 | 81,571 | 59,525 | 123,459 | 88,185 | 92,594
TPL81841028 | 1-1/8" | 68,343 | 94,798 | 68,343 | 141,096 | 101,412 | 108,026
TPL81841030 | 1-3/16" | 79,366 | 110,231 | 79,366 | 165,347 | 116,845 | 125,664
TPL81841032 | 1-1/4" | 88,185 | 123,459 | 88,185 | 185,188 | 134,482 | 141,096
TPL81841036 | 1-3/8" | 110,231 | 154,323 | 110,231 | 231,485 | 165,347 | 176,370
TPL81841038 | 1-1/2" | 125,664 | 171,960 | 125,664 | 262,350 | 187,393 | 198,416
TPL81841040 | 1-9/16" | 138,891 | 194,007 | 138,891 | 288,806 | 207,234 | 220,462
TPL81841045 | 1-3/4" | 178,574 | 249,122 | 178,574 | 374,786 | 268,964 | 286,601
TPL81841050 | 2" | 216,053 | 302,033 | 216,053 | 454,152 | 324,079 | 346,126

• Item No. – Unique product identification number for each chain size.
• Trade Size (in.) – Nominal diameter of the lifting chain, measured in inches.
• 1 Leg – Working Load Limit (WLL) for a single-leg chain sling in a vertical lift (90°).
• 2 Legs – Working Load Limit (WLL) for a two-leg chain sling at different sling angles.
• 3 & 4 Legs – Working Load Limit (WLL) for three-leg and four-leg chain slings at different sling angles.
• Continuous Sling – Working Load Limit (WLL) for a continuous (endless) chain sling configuration.
• Factor – Load factor applied according to the sling configuration and sling angle to determine the Working Load Limit.
• 0° < α < 45° / 45° < α < 60° – Sling angles measured from the vertical that affect WLL.

Standards and Testing
Manufacturing Standards: Manufactured from quenched and tempered Grade 100 alloy steel chain and components in accordance with EN 818-2, EN 1677-1, EN 1677-3, EN 1677-4, ASME B30.9, OSHA 1910.184, AS 2321, and ISO 3077 requirements for Grade 100 lifting chain sling assemblies.
Testing Standards: Minimum design factor 4:1. Each sling is proof tested, visually inspected, dimensionally verified, and checked for component compatibility before shipment. Chain complies with EN 818 fatigue requirements and withstands 20,000 load cycles at 1.5 times the WLL. Each sling is supplied with an individual serial number, identification tag, written certification, and complete traceability records.

Applications
Suitable for overhead lifting, three-point lifting, heavy machinery handling, structural steel erection, precast concrete installation, offshore lifting, wind power projects, equipment installation, and industrial material handling operations.

Maintenance
Inspect before each use for chain elongation, excessive wear, cracks, corrosion, self-locking hook operation, deformation, damaged master links or connecting links, and missing identification tags. Remove the sling from service immediately if defects exceed applicable inspection criteria.

Caractéristiques / Spécifications techniques

• Product type: Triple-leg chain sling with quad oblong master link top and three self-locking hooks bottom (TOSL configuration).
• Chain grade: Grade 100 quenched and tempered alloy steel.
• Design factor: 4:1 minimum.
• WLL advantage: ~25% higher WLL compared to Grade 80 for same chain size.
• Identification: Individual serial number, chain size, grade, exact sling length, WLL, identification tag and written certification.
• Manufacturing & testing standards: EN 818-2; EN 1677-1; EN 1677-3; EN 1677-4; ASME B30.9; OSHA 1910.184; AS 2321; ISO 3077; proof tested & fatigue tested (20,000 cycles at 1.5x WLL).
• MOQ indicated on page: 100 sets.
• Packaging indicated on page: Carton + Steel Pallet.
• Typical applications: heavy-duty overhead lifting, three-point lifts, offshore, wind power, precast, machinery installation, industrial handling.
• Maintenance: Inspect before each use; remove from service if defects exceed criteria.