{"id":163,"date":"2026-05-29T03:19:08","date_gmt":"2026-05-29T03:19:08","guid":{"rendered":"https:\/\/leaf-chain.com\/?post_type=product&p=163"},"modified":"2026-05-29T06:55:42","modified_gmt":"2026-05-29T06:55:42","slug":"lh12-series-leaf-chain","status":"publish","type":"product","link":"https:\/\/leaf-chain.com\/kk\/product\/lh12-series-leaf-chain\/","title":{"rendered":"LH12 Series Leaf Chain"},"content":{"rendered":"
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Ever Power \u00b7 Precision Industrial Chain Solutions<\/p>\n

LH12 Series Leaf Chain<\/h2>\n

High-strength forklift leaf chain engineered for demanding lifting applications across UK industry \u2014 DIN ISO & ANSI dual-standard certified.<\/p>\n

\ud83d\udce7 Get a Quote Now<\/a><\/p>\n<\/div>\n<\/div>\n

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Need custom specifications or bulk pricing for your UK operation?<\/p>\n

\u2709 Request a Quote \u2014 sales@leaf-chain.com<\/a><\/p>\n<\/div>\n

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What Is the LH12 Series Leaf Chain?<\/h2>\n

\"LH12The LH12 Series leaf chain is a plate-and-pin lifting chain engineered to serve the most demanding vertical load applications in warehousing, logistics, and heavy manufacturing environments. Built to both DIN ISO and ANSI standards, this series delivers exceptional tensile strength combined with dimensional consistency that British industrial operators have come to rely on. Whether you are sourcing replacement leaf chain for an existing forklift fleet or specifying new lifting equipment for a warehouse expansion, the LH12 range provides a proven, certified solution that meets the strict safety and performance expectations of UK buyers.<\/p>\n

Unlike roller chains, a leaf chain uses only link plates and pins \u2014 no rollers or bushings \u2014 which means the entire cross-section contributes directly to tensile load capacity. The result is a compact, high-strength assembly that handles cyclical loading without fatigue cracking across a service life measured in millions of cycles. Each chain in the LH12 family is heat-treated and shot-peened where required, then carefully assembled and inspected before dispatch. For UK procurement teams purchasing in bulk or operators seeking a reliable leaf chain supplier with fast lead times, Ever Power offers both stock items and fully customised configurations.<\/p>\n<\/div>\n

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Why Engineers Specify LH12 Leaf Chain<\/h2>\n
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Dual-Standard Certification<\/h3>\n

Fully compliant with DIN ISO 4347 and ANSI B29.8, enabling direct OEM replacement across European and American forklift platforms without specification compromise.<\/p>\n<\/div>\n

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High-Grade Steel Construction<\/h3>\n

Plates and pins are manufactured from alloy steel with controlled carbon content, delivering ultimate tensile strengths up to 238.8 kN on the largest LH1288 configuration.<\/p>\n<\/div>\n

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Extended Service Life<\/h3>\n

Heat treatment and precision-ground pin bores reduce pin-plate interface wear, extending the working life of the chain and reducing maintenance intervals in high-cycle lifting applications.<\/p>\n<\/div>\n

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Multiple Lacing Configurations<\/h3>\n

The series covers chain lacings from 2×2 through 8×8 within a single 19.05 mm pitch, giving design engineers flexibility to balance tensile load and weight per metre for any mast geometry.<\/p>\n<\/div>\n

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Custom OEM & B2B Supply<\/h3>\n

Ever Power works directly with UK distributors, maintenance contractors, and OEM assembly lines. Custom lengths, special coatings, and private-label packaging are available with competitive MOQ and short lead times.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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How the LH12 Series Works \u2014 Principle, Material & Application Scenes<\/h2>\n

\"LH12A leaf chain transmits tensile force purely through alternating sets of link plates pinned together by hardened steel pins. There are no rollers, no bushings, and no sprocket engagement \u2014 the chain wraps over a smooth sheave or anchor pin at each end of the mast. When a forklift carriage rises, the chain unspools from the sheave and the entire load hangs in direct tension. This simplicity means there are fewer failure modes compared to roller chain: the dominant wear mechanism is elongation at the pin-plate interface, which is measurable and predictable. Operators using the LH12 leaf chain can therefore plan maintenance windows based on measured elongation rather than unexpected failures.<\/p>\n

The link plates are stamped from medium-carbon alloy steel strip, then case-hardened to achieve a tough, wear-resistant surface over a ductile core \u2014 a combination that resists both fatigue cracking under cyclic loads and sudden brittle fracture under shock loads. The connecting pins are manufactured from case-hardened alloy steel with tight diameter tolerances (max 7.94 mm for the LH12 series) to maintain press-fit integrity throughout the operating life. Before shipment, every batch undergoes proof-load testing to verify that the minimum ultimate tensile strength (Q min) and average tensile strength (Q0) values meet published DIN ISO specification.<\/p>\n

Typical Application Scenes in UK Industry<\/h3>\n
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Counterbalance Forklifts<\/p>\n

LH1244 and LH1266 are standard choices for the free-lift and full-free mast sections of 2\u20135 tonne counterbalance trucks used widely in UK distribution centres.<\/p>\n<\/div>\n

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Reach Trucks & Order Pickers<\/p>\n

The compact plate height (18.11 mm max) and precise dimensional tolerances allow LH12 leaf chains to fit the tight mast channel clearances found in narrow-aisle reach trucks.<\/p>\n<\/div>\n

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Industrial Hoists & Cranes<\/p>\n

Where a linear, guided lifting motion is required at a fixed pitch, the LH1288 with 195.7 kN minimum UTS provides ample safety factor for overhead crane applications.<\/p>\n<\/div>\n

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Automated Storage Systems (AS\/RS)<\/p>\n

Precisely manufactured LH12 leaf chains ensure consistent indexing accuracy in automated stacker cranes deployed in UK e-commerce fulfilment warehouses operating 24\/7 cycles.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Design & Dimension Reference<\/h2>\n
\"LH12
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Technical Specifications \u2014 LH12 Series Leaf Chain<\/h2>\n

All dimensions in mm. Tensile strength values in kN. Weight in kg\/m. Pitch (P) = 19.05 mm for all variants.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
DIN ISO
\nChain No.<\/th>\n		ANSI
\nChain No.<\/th>\n		Pitch P
\n(mm)<\/th>\n		Chain
\nLacing<\/th>\n		Plate h2
\nmax (mm)<\/th>\n		Plate T
\nmax (mm)<\/th>\n		Pin d2
\nmax (mm)<\/th>\n		Pin L
\nmax (mm)<\/th>\n		UTS Q
\nmin (kN)<\/th>\n		Avg TS Q0
\n(kN)<\/th>\n		Weight
\n(kg\/m)<\/th>\n<\/tr>\n<\/thead>\n
LH1222<\/td>\nBL622<\/td>\n19.05<\/td>\n2×2<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n17.37<\/td>\n48.9<\/td>\n63.6<\/td>\n1.45<\/td>\n<\/tr>\n
LH1223<\/td>\nBL623<\/td>\n19.05<\/td>\n2×3<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n20.73<\/td>\n48.9<\/td>\n63.6<\/td>\n1.80<\/td>\n<\/tr>\n
LH1234<\/td>\nBL634<\/td>\n19.05<\/td>\n3×4<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n27.43<\/td>\n75.6<\/td>\n102.8<\/td>\n2.50<\/td>\n<\/tr>\n
LH1244<\/td>\nBL644<\/td>\n19.05<\/td>\n4×4<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n30.78<\/td>\n97.9<\/td>\n120.9<\/td>\n2.90<\/td>\n<\/tr>\n
LH1246<\/td>\nBL646<\/td>\n19.05<\/td>\n4×6<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n37.49<\/td>\n97.9<\/td>\n120.9<\/td>\n3.60<\/td>\n<\/tr>\n
LH1266<\/td>\nBL666<\/td>\n19.05<\/td>\n6×6<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n44.2<\/td>\n146.8<\/td>\n190.8<\/td>\n4.30<\/td>\n<\/tr>\n
LH1288<\/td>\nBL688<\/td>\n19.05<\/td>\n8×8<\/td>\n18.11<\/td>\n3.3<\/td>\n7.94<\/td>\n57.61<\/td>\n195.7<\/td>\n238.8<\/td>\n5.80<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

UTS = Ultimate Tensile Strength (Q min). Avg TS = Average Tensile Strength (Q0). Values per DIN ISO 4347 \/ ANSI B29.8.<\/p>\n<\/div>\n

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Customer Success Stories<\/h2>\n

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\ud83c\udf0d UK \u00b7 Logistics<\/span>
\nCase Study \u2014 Coventry Distribution Centre<\/span><\/div>\n

Reducing Forklift Downtime by 40% with LH1266 Leaf Chain<\/h3>\n

\"LH12A third-party logistics provider operating a high-throughput ambient distribution centre near Coventry was experiencing repeated mast chain failures on a fleet of 28 counterbalance forklifts. Their incumbent chain supplier could not maintain consistent dimensional tolerances, leading to premature elongation and unplanned downtime averaging 14 hours per truck per quarter. The operations manager contacted Ever Power after finding specifications online. Following a sample evaluation and proof-load test, the site switched entirely to LH1266 (BL666) leaf chains. Over the subsequent 12-month monitoring period, unplanned chain-related downtime dropped by approximately 40%, and the average chain replacement interval extended from 8 months to over 14 months. The procurement team noted that the cost per running metre was comparable to the previous supplier, making the reliability improvement effectively cost-neutral on a per-unit basis while substantially reducing labour costs associated with in-shift maintenance.<\/p>\n<\/div>\n

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\u2b50<\/p>\n

“We have been sourcing LH1244 and LH1266 chains from Ever Power for two years. The dimensional consistency is excellent \u2014 pin diameter tolerance is spot-on every batch, which matters enormously when you are dealing with tight mast clearances on reach trucks.”<\/p>\n

James Thornton<\/p>\n

Fleet Maintenance Manager \u00b7 Birmingham, England<\/p>\n<\/div>\n

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\u2b50<\/p>\n

“As a distributor supplying MHE spare parts across Scotland, I need a leaf chain supplier who can turn quotes around quickly and hold stock. Ever Power hit both marks. The LH12 series moves well \u2014 customers specifically ask for it by name now.”<\/p>\n

Fiona MacAllister<\/p>\n

Procurement Director \u00b7 Edinburgh MHE Supplies, Scotland<\/p>\n<\/div>\n

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\u2b50<\/p>\n

“Our cold-store facility runs forklifts around the clock at -22\u00b0C. We tried three different leaf chain suppliers before switching to the LH1288 from Ever Power. Eighteen months in and we have had zero chain-related incidents. The difference in material quality is noticeable.”<\/p>\n

Robert Davies<\/p>\n

Site Engineering Lead \u00b7 Manchester Cold Storage Ltd, England<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Our Manufacturing Capability & Custom Services<\/h2>\n
Ever Power operates a vertically integrated production facility equipped with CNC press lines, precision heat-treatment furnaces, multi-station assembly jigs, and tensile testing rigs capable of verifying ultimate load to 500 kN. Every stage of LH12 leaf chain production \u2014 from plate blanking through pin grinding, heat treatment, assembly, and proof-loading \u2014 is performed in-house under a documented quality management system. This closed-loop manufacturing model gives Ever Power direct control over material traceability and dimensional consistency, which is especially important for B2B customers in the UK who require batch certificates and full material test reports (MTRs) alongside their shipments.<\/div>\n

Beyond the standard LH12 catalogue range, Ever Power’s engineering team works closely with OEM customers, maintenance contractors, and specialist distributors to develop custom leaf chain<\/a> solutions. This service covers non-standard pitch configurations, bespoke plate lacings, special surface treatments (nickel plating, black oxide, zinc phosphating), extended pin protrusions for specific anchor fittings, and private-label packaging for MRO distribution brands. Custom orders are supported by dedicated application engineering consultation at no additional cost, with sample lead times typically under 15 working days for prototypes and confirmed production schedules on agreed quantities. If your application falls outside the published LH12 specification, contact the Ever Power sales team \u2014 the answer is almost always yes.<\/p>\n

\"leaf<\/p>\n

\u2699 Enquire About Custom Leaf Chain \u2192<\/a><\/div>\n<\/div>\n

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Frequently Asked Questions<\/h2>\n
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\nWhat is the difference between DIN ISO LH1244 and ANSI BL644 leaf chain, and which one should I order for a UK-made counterbalance forklift? +<\/span><\/summary>\n
LH1244 and BL644 are identical in physical dimensions and tensile strength \u2014 they are the same chain described under two different standard numbering systems. DIN ISO 4347 (European) uses the LH prefix, while ANSI B29.8 (American) uses the BL prefix. For UK forklifts manufactured by brands such as Linde, Jungheinrich, or Combilift, either designation is acceptable; confirm the pitch and lacing from the OEM service manual and match to our specification table above.<\/div>\n<\/details>\n
\nHow much does LH12 Series leaf chain cost per metre when ordering in bulk from a UK supplier? +<\/span><\/summary>\n
Pricing for LH12 leaf chain depends on the specific variant, quantity, and any customisation requirements. The LH1222 and LH1223 light-lacing variants are the most economical, while LH1288 heavy-lacing commands a premium due to higher material content. For an accurate per-metre price and volume discount schedule, please contact our sales team at sales@leaf-chain.com<\/a>. We provide transparent FOB and DDP pricing to UK buyers, with no hidden surcharges.<\/div>\n<\/details>\n
\nWhere can I find a reliable LH12 leaf chain supplier in the UK who can provide material test certificates and batch traceability? +<\/span><\/summary>\n
Ever Power supplies LH12 leaf chains to UK buyers with full material traceability and batch-level documentation including material test reports (MTRs) and tensile test certificates per DIN ISO 4347. We ship directly to UK addresses via bonded freight and can provide CIPS-compliant purchase documentation for procurement teams working within ISO 9001-certified supply chains.<\/div>\n<\/details>\n
\nHow do I know when my forklift leaf chain needs to be replaced, and what is the correct inspection method for LH12 series chains used in British warehouses? +<\/span><\/summary>\n
The standard method is to measure elongation over a known number of pitches using a calibrated chain wear gauge. For LH12 chains with a 19.05 mm pitch, a 2% elongation over a measured 305 mm section (approximately 16 pitches) is the generally accepted replacement threshold, in line with LEEA (Lifting Equipment Engineers Association) guidance. Visual inspection should also cover plate cracking, corrosion pitting, and pin rotation \u2014 any of which requires immediate replacement regardless of elongation level. We recommend inspection at every 500 operating hours as a minimum in high-cycle UK warehouse environments.<\/div>\n<\/details>\n
\nCan Ever Power supply custom-length LH12 forklift leaf chains with specific anchor pin configurations for an OEM order based in the UK? +<\/span><\/summary>\n
Yes. Ever Power’s custom service covers cut-to-length chains with end fittings, anchor pins, clevis connectors, and chain shortening links as required. OEM orders can be produced to drawing, with first-article inspection (FAI) reports provided before mass production commences. MOQs for custom configurations are negotiable based on design complexity. Send your technical drawing or application brief to sales@leaf-chain.com<\/a> for a no-obligation engineering review.<\/div>\n<\/details>\n
\nWhich LH12 variant is best suited for reach trucks operating in a cold-store warehouse environment in northern England? +<\/span><\/summary>\n
For cold-store applications (typically -25\u00b0C to +5\u00b0C), the LH1244 (4×4 lacing) is most commonly specified on 2\u20133 tonne reach trucks due to its balance of tensile strength (97.9 kN minimum UTS) and relatively low weight per metre (2.90 kg\/m), which reduces mast load and improves stability at height. The alloy steel used in LH12 plates retains adequate toughness at low temperatures; however, it is important to use a chain lubricant rated for cold-store conditions, as standard mineral-oil greases can become viscous and reduce lubrication effectiveness below -10\u00b0C.<\/div>\n<\/details>\n<\/div>\n<\/div>\n

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Ready to Source LH12 Leaf Chain for Your UK Operation?<\/h2>\n

Contact Ever Power today for competitive pricing, fast lead times, and expert technical support. Custom specifications welcome.<\/p>\n

\"leaf<\/p>\n

\ud83d\udce7 Get a Quote \u2014 sales@leaf-chain.com<\/a><\/p>\n<\/div>\n

edit by gzl<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

LH12 forklift leaf chain, 19.05mm pitch, alloy steel plates & pins, 48.9\u2013195.7 kN UTS, 2\u00d72\u20138\u00d78 lacing. DIN ISO 4347 \/ ANSI B29.8 dual-certified.<\/p>","protected":false},"featured_media":154,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[63],"product_tag":[],"class_list":["post-163","product","type-product","status-publish","has-post-thumbnail","product_cat-leaf-chain","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/product\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/media\/154"}],"wp:attachment":[{"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/product_brand?post=163"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/product_cat?post=163"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/leaf-chain.com\/kk\/wp-json\/wp\/v2\/product_tag?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}