{"id":894,"date":"2026-08-17T07:09:41","date_gmt":"2026-08-17T07:09:41","guid":{"rendered":"https:\/\/engineer-class-chain.com\/?post_type=product&p=894"},"modified":"2026-08-17T09:59:34","modified_gmt":"2026-08-17T09:59:34","slug":"hatch-cover-chain-11-30-mm-test-load-57-399-kn-lloyds-abs-dnv-certified","status":"publish","type":"product","link":"https:\/\/engineer-class-chain.com\/am\/product\/hatch-cover-chain-11-30-mm-test-load-57-399-kn-lloyds-abs-dnv-certified\/","title":{"rendered":"Hatch Cover Chain \u2013 11\u201330 mm | Test Load 57\u2013399 kN | Lloyd’s ABS DNV Certified"},"content":{"rendered":"

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Ever-power Engineer Class Chain Co., Ltd<\/p>\n

Hatch Cover Chain<\/h2>\n

11\u201330 mm \u00a0\u00b7\u00a0 Test Load 57\u2013399 kN \u00a0\u00b7\u00a0 Breaking Load 116\u2013798 kN<\/p>\n

Short-link chains for vessel hatch cover lifting, positioning, and securing systems. Fourteen standard size-profile combinations covering cargo vessels, bulk carriers, and general-purpose merchant shipping. Multiple profile variants at key diameters to match different hatch cover hardware configurations.<\/p>\n

View Specifications<\/a><\/div>\n<\/div>\n
\"Hatch<\/p>\n
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Certified by \u00a0|\u00a0 Lloyd’s Register \u00a0\u00b7\u00a0 ABS \u00a0\u00b7\u00a0 Bureau Veritas \u00a0\u00b7\u00a0 DNV \u00a0\u00b7\u00a0 ISO 9001 \u00a0\u00b7\u00a0 ISO 14001 \u00a0\u00b7\u00a0 CE Mark<\/p>\n<\/section>\n

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Product Overview<\/p>\n

Short-Link Chain for Vessel Hatch Cover Systems<\/h2>\n

Hatch cover chains are short-link round steel chains used in the lifting, positioning, and securing mechanisms of vessel hatch covers on cargo ships, bulk carriers, container vessels, and general-purpose merchant shipping. The chain connects hatch cover panels to the actuating hardware and provides the structural link between the cover and the vessel deck fitting.<\/p>\n

Ever-power Engineer Class Chain Co., Ltd supplies hatch cover chains in 14 standard size-profile combinations<\/strong> from 11 to 30 mm<\/strong> diameter, with test loads from 57 kN to 399 kN<\/strong> and breaking loads from 116 kN to 798 kN<\/strong>. Multiple inner length and inner width variants are available at key diameters \u2014 14 mm, 16 mm, 18 mm, 20 mm, and 22 mm \u2014 to match specific hatch cover equipment manufacturers’ dimensional requirements.<\/p>\n

Classification society certificates from Lloyd’s Register, ABS, Bureau Veritas, and DNV are available for each shipment. Chains are produced from alloy steel with surface treatment suited to the marine environment.<\/p>\n<\/div>\n

\"Ever-power<\/div>\n<\/section>\n

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Technical Data<\/p>\n

Dimensional & Load Specifications<\/h2>\n

Dimensions in mm \u00a0\u00b7\u00a0 Loads in kN \u00a0\u00b7\u00a0 Weight in kg\/m \u00a0\u00b7\u00a0 A\/B variants denote different inner length and width profiles at the same nominal diameter<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Diameter (mm)<\/th>\nInner Length (mm)<\/th>\nInner Width (mm)<\/th>\nTest Load (kN)<\/th>\nBreaking Load (kN)<\/th>\nWeight (kg\/m)<\/th>\n<\/tr>\n<\/thead>\n
11<\/td>\n43<\/td>\n12.5<\/td>\n57<\/td>\n116<\/td>\n2.39<\/td>\n<\/tr>\n
14 (A)<\/td>\n50<\/td>\n17<\/td>\n97<\/td>\n194<\/td>\n3.95<\/td>\n<\/tr>\n
14 (B)<\/td>\n42<\/td>\n18<\/td>\n97<\/td>\n194<\/td>\n4.32<\/td>\n<\/tr>\n
15<\/td>\n42<\/td>\n21<\/td>\n106<\/td>\n212<\/td>\n5.20<\/td>\n<\/tr>\n
16 (A)<\/td>\n55<\/td>\n22<\/td>\n128<\/td>\n254<\/td>\n5.34<\/td>\n<\/tr>\n
16 (B)<\/td>\n55<\/td>\n24<\/td>\n128<\/td>\n254<\/td>\n5.29<\/td>\n<\/tr>\n
18 (A)<\/td>\n54<\/td>\n18<\/td>\n161<\/td>\n322<\/td>\n7.12<\/td>\n<\/tr>\n
18 (B)<\/td>\n64<\/td>\n25<\/td>\n161<\/td>\n322<\/td>\n6.32<\/td>\n<\/tr>\n
19<\/td>\n57<\/td>\n24<\/td>\n164<\/td>\n330<\/td>\n7.60<\/td>\n<\/tr>\n
20 (A)<\/td>\n60<\/td>\n22<\/td>\n129<\/td>\n359<\/td>\n9.50<\/td>\n<\/tr>\n
20 (B)<\/td>\n62<\/td>\n22<\/td>\n179<\/td>\n359<\/td>\n8.57<\/td>\n<\/tr>\n
22 (A)<\/td>\n78<\/td>\n31<\/td>\n240<\/td>\n480<\/td>\n9.86<\/td>\n<\/tr>\n
22 (B)<\/td>\n86<\/td>\n30<\/td>\n240<\/td>\n480<\/td>\n9.24<\/td>\n<\/tr>\n
22 (C)<\/td>\n66<\/td>\n31<\/td>\n240<\/td>\n480<\/td>\n10.6<\/td>\n<\/tr>\n
30<\/td>\n108<\/td>\n35<\/td>\n399<\/td>\n798<\/td>\n18.22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

A \/ B \/ C variants at the same nominal diameter denote different inner length and inner width profiles \u00a0\u00b7\u00a0 Dimensions should be verified against hatch cover equipment specification before ordering<\/p>\n<\/div>\n<\/section>\n

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Construction & Design<\/p>\n

Product Features<\/h2>\n\n\n\n\n\n
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Multiple Profile Variants per Diameter<\/h3>\n

At 14 mm, 16 mm, 18 mm, 20 mm, and 22 mm nominal diameter, two or three inner length and inner width combinations are available. The 22 mm size has three variants (A, B, C) to accommodate the range of hatch cover hardware configurations used by different vessel builders and equipment manufacturers.<\/p>\n<\/td>\n

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Size Range: 11 to 30 mm<\/h3>\n

Fifteen standard size-profile combinations from 11 mm to 30 mm cover the range of hatch cover systems used on coastal and ocean-going cargo vessels, bulk carriers, and general-purpose merchant ships. The 30 mm size with a breaking load of 798 kN covers heavy hatch cover applications on larger bulk carriers.<\/p>\n<\/td>\n<\/tr>\n

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Test Loads 57\u2013399 kN \u00b7 Breaking Loads 116\u2013798 kN<\/h3>\n

All chains are proof tested before dispatch. Test loads range from 57 kN (11 mm) to 399 kN (30 mm). Minimum breaking loads are approximately twice the test load across all sizes, providing a defined margin above the proof test level.<\/p>\n<\/td>\n

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Classification Society Certified<\/h3>\n

Chains can be supplied with certificates from Lloyd’s Register, ABS, Bureau Veritas, or DNV. Classification society certification is typically required by vessel operators and shipyards for hatch cover chain replacement. Please specify the required society at the time of enquiry.<\/p>\n<\/td>\n<\/tr>\n

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Alloy Steel \u2014 Marine Grade Surface Treatment<\/h3>\n

Chains are manufactured from alloy steel with surface treatment suited to the marine environment. Hot-dip galvanising or painting options are available depending on the exposure conditions and replacement interval requirements of the specific hatch cover installation.<\/p>\n<\/td>\n

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Dimension Verification Before Ordering<\/h3>\n

Hatch cover chain dimensions vary between vessel designs and hatch cover manufacturers. Before placing an order, the nominal diameter, inner length, inner width, and required test\/breaking load should be confirmed against the vessel’s maintenance records or hatch cover equipment documentation to ensure the correct variant is supplied.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Application Sectors<\/p>\n

Where Hatch Cover Chains Are Used<\/h2>\n
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\ud83d\udea2<\/span><\/p>\n
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Bulk Carriers<\/p>\n

Folding and rolling hatch covers on bulk carriers carrying grain, coal, ore, and other dry bulk cargoes requiring weathertight sealing.<\/p>\n<\/div>\n<\/div>\n

\ud83d\udce6<\/span><\/p>\n
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General Cargo & Multi-Purpose Vessels<\/p>\n

Tweendeck and main deck hatch covers on general cargo ships and multi-purpose vessels with varied cargo types.<\/p>\n<\/div>\n<\/div>\n

\ud83d\udee2\ufe0f<\/span><\/p>\n
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Tankers & Chemical Carriers<\/p>\n

Hatch cover lifting chains for deck access hatches and pump room covers on tanker and chemical carrier vessels.<\/p>\n<\/div>\n<\/div>\n

\ud83d\udd27<\/span><\/p>\n
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Hatch Cover Maintenance & Replacement<\/p>\n

In-service chain replacement at shipyard dry-dock or port maintenance intervals, where classification society certification is required.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n

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Approvals & Certifications<\/p>\n

Classification Society Approvals<\/h2>\n

Hatch cover chains can be supplied with classification society certificates from Lloyd’s Register, ABS, Bureau Veritas, or DNV. Please specify the required classification society when enquiring, as this may affect the required test procedure and documentation format.<\/p>\n\n\n\n\n\n\n
\u2714 Lloyd’s Register<\/td>\n\u2714 ABS<\/td>\n<\/tr>\n
\u2714 Bureau Veritas<\/td>\n\u2714 DNV<\/td>\n<\/tr>\n
\u2714 ISO 9001<\/td>\n\u2714 ISO 14001<\/td>\n<\/tr>\n
\u2714 CE Mark<\/td>\n\u2714 MA Mining Safety<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\"Ever-power<\/div>\n<\/div>\n<\/section>\n

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FAQ<\/p>\n

Frequently Asked Questions<\/h2>\n
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What information do I need to order the correct hatch cover chain?<\/h3>\n

Please provide the nominal diameter, inner length, and inner width of the existing chain, along with the vessel name, hatch cover manufacturer and type if known, and the required classification society certificate. This allows confirmation of the correct profile variant (A, B, or C at diameters where multiple profiles exist) before production.<\/p>\n<\/div>\n

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Why are there multiple profile variants at the same nominal diameter?<\/h3>\n

Different hatch cover equipment manufacturers \u2014 including MacGregor, Hatlapa, and others \u2014 use different inner link dimensions at the same nominal chain diameter to suit their specific sheave, guide, and connecting hardware dimensions. Multiple variants allow direct replacement without modification to the hatch cover system.<\/p>\n<\/div>\n

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What is the breaking load for 22 mm hatch cover chain?<\/h3>\n

All three 22 mm variants (A, B, and C) carry the same breaking load of 480 kN with a test load of 240 kN. The difference between variants is the inner length and inner width \u2014 A: 78\u00d731 mm, B: 86\u00d730 mm, C: 66\u00d731 mm \u2014 which affects compatibility with the hatch cover hardware rather than the load capacity.<\/p>\n<\/div>\n

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Is a classification society certificate required for hatch cover chain replacement?<\/h3>\n

Classification society certification is typically required by vessel operators and shipyards for hatch cover chain replacement on classed vessels. The specific society (Lloyd’s, ABS, BV, DNV) should match the vessel’s class. Please specify the required society at the time of enquiry so the correct test and documentation procedure is followed.<\/p>\n<\/div>\n

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What surface treatment is available for hatch cover chains?<\/h3>\n

Hot-dip galvanising and painting are the standard surface treatment options for hatch cover chains. The appropriate treatment depends on the hatch cover system design, accessibility for maintenance, and the vessel’s trading route. Please specify at enquiry stage.<\/p>\n<\/div>\n<\/div>\n<\/section>\n

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Also from Ever-power<\/p>\n

Related Products<\/h2>\n\n\n\n\n\n
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Marine & Anchor Chains<\/p>\n

Anchor Chain<\/a><\/p>\n

ISO 1704 \u00b7 Grade U1\/U2\/U3 \u00b7 stud and studless \u00b7 20\u2013150 mm \u00b7 commercial shipping<\/p>\n<\/td>\n

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Marine & Anchor Chains<\/p>\n

Fishing & Marine Chain<\/a><\/p>\n

304 \/ 316 stainless or galvanised \u00b7 7\u201328 mm \u00b7 vessel deck and mooring applications<\/p>\n<\/td>\n<\/tr>\n

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Lifting Chains<\/p>\n

Grade 80 Lifting Chain<\/a><\/p>\n

EN 818-2 \u00b7 6\u201348 mm \u00b7 port crane and vessel maintenance lifting<\/p>\n<\/td>\n

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Rigging Hardware<\/p>\n

Shackles<\/a><\/p>\n

Bow and D-type \u00b7 3\/16 to 2-1\/2 in \u00b7 hatch cover and deck rigging connections<\/p>\n<\/td>\n<\/tr>\n

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Specialty Chains<\/p>\n

Stainless Steel Chain<\/a><\/p>\n

304 \/ 316 \/ 316L \u00b7 2\u201332 mm \u00b7 corrosion-resistant marine deck applications<\/p>\n<\/td>\n

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Rigging Hardware<\/p>\n

Hooks<\/a><\/p>\n

Grab hooks and clevis hooks \u00b7 1\/4 to 3\/4 in \u00b7 deck and hatch cover rigging<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Hatch cover chains are part of a wider category of marine chain and deck hardware products. Those specifying chain for vessel maintenance and port operations may also find reference in heavy-duty chain engineering data<\/a> and power transmission chain standards<\/a> for port and shipyard equipment drives. For corrosion-resistant chain products suitable for marine environments, flexible chain system specifications<\/a> and industrial roller chain specifications<\/a> provide complementary technical context.<\/p>\n<\/div>\n<\/section>\n


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