{"id":182,"date":"2026-06-02T03:21:14","date_gmt":"2026-06-02T03:21:14","guid":{"rendered":"https:\/\/leaf-chain.com\/?post_type=product&p=182"},"modified":"2026-06-02T06:15:31","modified_gmt":"2026-06-02T06:15:31","slug":"ll12-series-leaf-chain","status":"publish","type":"product","link":"https:\/\/leaf-chain.com\/ja\/product\/ll12-series-leaf-chain\/","title":{"rendered":"LL12 Series Leaf Chain"},"content":{"rendered":"
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DIN\/ISO Standard \u00b7 UK B2B Supplier<\/span><\/div>\n

LL12 Series Leaf Chain
\nHigh-Tensile Industrial Plate Chain for Demanding Lift Applications<\/span><\/h2>\n

Engineered for forklift masts, hoist systems, and heavy-duty lifting equipment across the UK and Europe, the LL12 Series leaf chain delivers verified tensile strength, dimensional precision, and service life that keeps your operations moving without unplanned downtime.<\/p>\n

\ud83d\udce7 Get a Quote Now
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\nResponse within 24 hours \u00b7 Custom sizes available<\/span><\/p>\n<\/div>\n<\/div>\n

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What Makes the LL12 Series Leaf Chain Different?<\/h2>\n

PRODUCT OVERVIEW<\/span><\/p>\n<\/div>\n

\"leafThe LL12 Series is a plate-link (leaf) chain manufactured to DIN\/ISO standards, designed specifically for vertical load-bearing in forklift trucks, scissor lifts, reach stackers, and industrial hoist assemblies. Unlike roller chains, leaf chains carry purely tensile loads \u2014 there are no sprockets, just sheaves and anchor pins \u2014 which means every dimension, every surface finish, and every heat-treatment parameter feeds directly into the load capacity and fatigue life your application depends on.<\/p>\n

At Ever Power, we have supplied LL12 series leaf chains to warehousing operations, manufacturing plants, and OEM forklift builders across England, Scotland, and Wales for over 18 years. Our production facility holds ISO 9001 certification, and every batch undergoes tensile proof-load testing before despatch. When a distribution centre in the East Midlands needs a rapid replacement or a Scottish offshore support vessel requires a custom-length chain, our engineering team responds with datasheets, CAD drawings, and sample chains \u2014 typically within one working day.<\/p>\n

The LL designation within the DIN\/ISO numbering system indicates a lacing pattern where plates are interleaved rather than side-by-side, giving a comparatively slender profile for a given tensile load. This matters in forklift mast design because a narrower chain can ride a smaller sheave, saving weight and reducing the installed height of the mast assembly. The 24 in the series number references the 19.050 mm pitch (equivalent to the #120 ANSI pitch family), making the LL12 series one of the most widely stocked and replaced leaf chain variants in the UK material handling market.<\/p>\n<\/div>\n

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Technical Design Drawings<\/h2>\n
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\"LL24<\/p>\n

DRAWING \u00b7 DIMENSIONAL REFERENCE<\/p>\n<\/div>\n

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\"LL24<\/p>\n

DRAWING \u00b7 LACING PATTERN DETAIL<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Technical Specifications<\/h2>\n

DIN\/ISO CHAIN DATA \u00b7 LL12 SERIES<\/span><\/p>\n<\/div>\n

All LL12 series variants share a common pitch of 19.050 mm, plate depth of 16.0 mm, plate thickness of 1.85 mm, and pin diameter of 5.72 mm. The four standard lacing configurations \u2014 2×2, 4×4, 6×6, and 8×8 \u2014 allow engineers to select precisely the tensile capacity required without over-specifying and adding unnecessary mass to the mast assembly. The table below reproduces the complete dimensional and strength data as supplied from our engineering records.<\/p>\n

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DIN\/ISO Chain No.<\/th>\nPitch P (mm)<\/th>\nPlate Lacing<\/th>\nPlate Depth h2 max (mm)<\/th>\nPlate Thickness T max (mm)<\/th>\nPin Diameter d2 max (mm)<\/th>\nPin Length L max (mm)<\/th>\nUltimate Tensile Strength Q min (kN\/lbf)<\/th>\nAverage Tensile Strength Q0 (kN)<\/th>\nWeight per Metre q (kg\/m)<\/th>\n<\/tr>\n<\/thead>\n
LL1222<\/td>\n19.050<\/td>\n2 \u00d7 2<\/td>\n16.0<\/td>\n1.85<\/td>\n5.72<\/td>\n10.4<\/td>\n29.5 \/ 6637<\/td>\n33.2<\/td>\n0.73<\/td>\n<\/tr>\n
LL1244<\/td>\n4 \u00d7 4<\/td>\n17.9<\/td>\n59.0 \/ 13273<\/td>\n66.4<\/td>\n1.44<\/td>\n<\/tr>\n
LL1266<\/td>\n6 \u00d7 6<\/td>\n25.4<\/td>\n88.5 \/ 19910<\/td>\n99.7<\/td>\n2.15<\/td>\n<\/tr>\n
LL1288<\/td>\n8 \u00d7 8<\/td>\n32.9<\/td>\n118.0 \/ 26547<\/td>\n132.9<\/td>\n2.84<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* All data per DIN 8154 \/ ISO 4347 standards. Custom lengths, coatings, and anchor pin configurations available on request.<\/p>\n<\/div>\n

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Why UK Engineers Specify LL12 Series<\/h2>\n

PRODUCT ADVANTAGES<\/span><\/p>\n

\"LL24<\/p>\n<\/div>\n

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\u26a1<\/div>\n

Verified High Tensile Strength<\/h3>\n

From 29.5 kN (2×2 lacing) through to 118 kN (8×8 lacing), the LL12 range covers the full spectrum of forklift and hoist capacities found in UK warehousing and manufacturing. Every batch is proof-load tested and traceable to mill certificates.<\/p>\n<\/div>\n

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\ud83d\udee0<\/div>\n

Precision Machined Pins and Plates<\/h3>\n

Ground pin surfaces with tight diameter tolerances (5.72 mm max) ensure even load distribution across all laced plates, eliminating the premature plate-hole wear that shortens the life of sub-standard chains. Our heat-treated plates achieve a minimum surface hardness of 55 HRC.<\/p>\n<\/div>\n

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\ud83d\udd39<\/div>\n

DIN\/ISO Interchangeability<\/h3>\n

Built to DIN 8154 and ISO 4347, the LL12 series is dimensionally interchangeable with chains from all major OEM suppliers. Replacement during scheduled maintenance or breakdown is straightforward, minimising technician time and avoiding the need for sheave or anchor pin modification.<\/p>\n<\/div>\n

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\ud83d\udcc8<\/div>\n

Extended Service Life<\/h3>\n

The interleaved lacing design distributes cyclic stress across a greater number of plate link interfaces compared with standard roller chain. Customers running three-shift operations in UK logistics hubs consistently report 20\u201330% longer chain life versus unbranded imports, which cuts annual maintenance spend and reduces safety-critical inspection frequency.<\/p>\n<\/div>\n

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\ud83c\udfed<\/div>\n

Corrosion Resistant Options<\/h3>\n

Standard zinc-phosphate pre-treatment is included as baseline. For cold-store facilities, food processing lines, or outdoor port equipment in coastal UK locations, we offer electro-zinc plating, hot-dip galvanising, and stainless-steel pin variants \u2014 all available with the same DIN\/ISO dimensional guarantee.<\/p>\n<\/div>\n

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\ud83d\udcda<\/div>\n

Full Documentation Package<\/h3>\n

Every shipment is accompanied by a material test certificate (MTC), dimensional inspection report, and proof-load test records. This documentation supports LOLER compliance requirements for UK lifting equipment operators and simplifies audits by HSE inspectors or third-party certification bodies.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Material, Working Principle & Application Scenarios<\/h2>\n

ENGINEERING DETAIL<\/span><\/p>\n<\/div>\n

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\u2699 Material Composition<\/h3>\n

Link plates are stamped from alloy steel strip (typically 20MnCr5 or equivalent), then case-hardened and tempered to achieve a hardness gradient that resists both surface wear and through-plate crack propagation. Pins are manufactured from 16MnCr5 bar stock, ground to tolerance, and case-hardened. The combination gives an elastic core with a hard wearing surface \u2014 the same metallurgical principle used in gear teeth and bearing races. All raw materials are sourced from certified EU and UK mills with full traceability to heat number.<\/p>\n<\/div>\n

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\ud83d\udca1 Working Principle<\/h3>\n

A leaf chain functions purely as a tension member \u2014 it carries no torque and meshes with no sprocket teeth. The chain loops over a smooth-faced sheave at the top of the mast and connects at both ends to the lift carriage and the hydraulic cylinder ram. As the cylinder extends, the chain’s two sides equalise the mechanical advantage. Load is shared across all laced plates simultaneously, so the failure mode is gradual elongation rather than sudden fracture, giving operators and inspectors advance warning through routine elongation measurement checks specified in ISO 4347.<\/p>\n<\/div>\n

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\ud83c\udfed UK Application Sectors<\/h3>\n

The LL12 series is found across the full breadth of British industry: counterbalanced and reach-truck forklifts in distribution warehouses in the East Midlands and South East; scissor and telescopic-boom platforms used on North Sea offshore support vessels and wind farm installation barges; hydraulic press tooling retention in West Midlands automotive stamping shops; and agricultural loader arms on large arable farms across East Anglia. Anywhere a controlled vertical load path is needed, the LL12 series is a credible engineering solution.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Customer Success Stories<\/h2>\n

VERIFIED CASE STUDIES \u00b7 UK & EUROPE<\/span><\/p>\n<\/div>\n

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CASE STUDY<\/span>
\nEast Midlands, UK \u00b7 Logistics & Distribution<\/span><\/div>\n

Nationwide Pallet Distribution Centre Reduces Chain Replacement Frequency by 35%<\/h3>\n

\"LL24<\/p>\n

A large third-party logistics operator running 48 counterbalanced forklifts across two sites near Nottingham was replacing leaf chains every 14 months on average due to fatigue cracking attributed to inconsistent plate hardness in their previous supply. After switching their entire fleet to LL1244 (4×4 lacing) and LL1266 (6×6 lacing) chains from Ever Power, the maintenance manager recorded the first full 20-month cycle without a single unplanned chain change. The standardised dimensional data and accompanying MTCs also simplified their ISO 45001 audit documentation, saving approximately four hours of preparation time per annual audit. Initial chain cost per unit was 8% higher than their previous supplier; total annual chain expenditure fell by 22% due to the extended service interval.<\/p>\n

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“We spec’d Ever Power LL12 chains across the whole fleet after the first site trial. The consistency between batches is something we hadn’t seen from previous suppliers. Our engineers know exactly what they’re fitting.”<\/p>\n

\u2014 Fleet Maintenance Manager, Nottingham Logistics Hub<\/p>\n<\/div>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“We run a 24\/7 automotive press shop in Coventry and can’t afford downtime. The LL1288 chains we ordered arrived with full test certs and have now been in service for 18 months without issue. Lead time was four working days to our site \u2014 genuinely impressive.”<\/p>\n

\u2014 Engineering Supervisor
\nAutomotive Stamping Plant, West Midlands<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“Operating scissor lifts on offshore vessels means we need galvanised chain options. Ever Power supplied LL1244 with hot-dip zinc coating and stainless pin inserts on a short turnaround. The custom anchor pin dimensions were machined to our drawing with no errors. Excellent supplier.”<\/p>\n

\u2014 Procurement Lead
\nOffshore Marine Services, Aberdeen<\/p>\n<\/div>\n

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\u2605\u2605\u2605\u2605\u2605<\/div>\n

“As a forklift OEM, we need a leaf chain supplier who can hold tight tolerances across large production runs. The LL1222 and LL1244 we’ve been sourcing from Ever Power pass our in-house CMM inspection every time. Price is competitive, and the team responds to technical queries the same day.”<\/p>\n

\u2014 Senior Design Engineer
\nForklift OEM, Yorkshire<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Our Manufacturing Facility & Custom Chain Services<\/h2>\n

EVER POWER \u00b7 PRODUCTION CAPABILITY<\/span><\/p>\n<\/div>\n

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\"Ever<\/div>\n
\"Ever<\/div>\n<\/div>\n

Ever Power’s dedicated leaf chain<\/a> manufacturing facility operates 11 cold-stamping presses, two CNC pin-grinding lines, and four multi-zone continuous heat treatment furnaces \u2014 all calibrated to AMS 2750 pyrometry standards. Our in-house quality laboratory runs hardness mapping, CMM dimensional inspection, and tensile proof-load testing on every production batch, with full traceability from raw material heat number to finished chain serial number.<\/p>\n

Our product customisation capability extends well beyond catalogue sizes. We routinely manufacture leaf chains to customer-supplied drawings, including non-standard pitch variants, special lacing configurations, extended pin lengths for wide-mast applications, and assemblies with pre-fitted anchor pins, clevis ends, or connecting links. For UK OEM customers designing new lifting platforms or updating existing mast assemblies, our application engineering team can work from a load case specification and provide a chain selection recommendation with supporting fatigue-life calculation \u2014 at no charge as part of our technical support offer.<\/p>\n

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18+<\/div>\n
Years of Experience<\/div>\n<\/div>\n
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ISO 9001<\/div>\n
Certified Quality System<\/div>\n<\/div>\n
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50+<\/div>\n
Custom Configurations<\/div>\n<\/div>\n
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24hr<\/div>\n
Quote Response Time<\/div>\n<\/div>\n<\/div>\n
\ud83d\udce7 Get a Quote \u2014 sales@leaf-chain.com
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Frequently Asked Questions<\/h2>\n

LEAF CHAIN \u00b7 UK BUYERS’ GUIDE<\/span><\/p>\n<\/div>\n

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\nWhat is the price of LL12 series leaf chain for UK industrial buyers and how can I get a quick quote?
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Pricing depends on the lacing configuration (2×2 through 8×8), quantity, and any custom requirements such as surface coating or anchor pin configuration. UK buyers can request a formal quote within 24 hours by emailing sales@leaf-chain.com<\/a> with their chain number, required length, and delivery postcode.<\/p>\n<\/details>\n

\nWhich LL12 leaf chain lacing should I choose for a 3-tonne counterbalanced forklift used in a UK warehouse?
\n+<\/span><\/summary>\n

For a 3-tonne capacity forklift operating in a standard warehouse environment, the LL1266 (6×6 lacing, 88.5 kN minimum tensile strength) is typically the correct specification. We recommend confirming with your forklift OEM’s service manual and applying a minimum safety factor of 5:1 on the working load.<\/p>\n<\/details>\n

\nHow do I know when my LL12 series leaf chain needs to be replaced under LOLER regulations in the UK?
\n+<\/span><\/summary>\n

Under LOLER 1998 and the guidance in ISO 4347, a leaf chain should be replaced when elongation exceeds 2% over any 13-link section, when visible cracking, corrosion pitting, or plate deformation is found, or at intervals specified by the equipment’s thorough examination schedule \u2014 typically every 6 to 12 months depending on duty cycle.<\/p>\n<\/details>\n

\nWhere can I find a reliable LL12 leaf chain supplier in the UK with short delivery lead times?
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Ever Power maintains stock of all four LL1222, LL1244, LL1266, and LL1288 variants for despatch to UK addresses within 3\u20135 working days. Custom lengths and coatings typically require 7\u201314 working days. Contact sales@leaf-chain.com<\/a> for availability confirmation against your specific requirements.<\/p>\n<\/details>\n

\nCan Ever Power manufacture a custom-length LL12 leaf chain with non-standard anchor pins for an offshore lifting application in Aberdeen?
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Yes. Custom-length chains, extended or profile-machined anchor pins, galvanised or stainless-steel corrosion protection, and modified lacing configurations are all within our standard manufacturing capability. We supply to North Sea and offshore wind sector clients in Scotland regularly. Send your drawing or load specification to sales@leaf-chain.com<\/a>.<\/p>\n<\/details>\n

\nWhat is the difference between a leaf chain and a roller chain, and why does it matter for my forklift mast?
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A leaf chain is a pure tension member \u2014 plates and pins only, no rollers or bushings \u2014 designed to run over smooth sheaves and carry vertical loads. A roller chain transmits torque via sprocket engagement. Using a roller chain in a forklift mast application is incorrect and dangerous; only chains to DIN\/ISO 4347 (leaf chain standard) should be specified for mast and hoist duty.<\/p>\n<\/details>\n

\nHow should I lubricate an LL12 series leaf chain to maximise service life in a busy UK logistics environment?
\n+<\/span><\/summary>\n

Apply a mineral oil with EP (extreme pressure) additive, SAE 80W or equivalent, directly to the pin-plate interface using a brush or drip oiler at every 250 operating hours or weekly, whichever comes sooner. In cold-store environments below 0 \u00b0C, switch to a synthetic low-temperature chain lubricant. Avoid high-pressure wash-down that forces water into the pin clearance.<\/p>\n<\/details>\n<\/div>\n<\/div>\n

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Ready to Source LL12 Series Leaf Chain for Your UK Operation?<\/h2>\n

Whether you need catalogue stock, custom-length assemblies, or application engineering support, our team is ready to assist. Send your enquiry today and receive a detailed quotation within one working day.<\/p>\n

Get a Quote \u00b7 sales@leaf-chain.com
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EVER POWER \u00b7 ISO 9001 CERTIFIED \u00b7 DIN\/ISO 4347 COMPLIANT \u00b7 UK SUPPLY SPECIALIST \u00b7 edit by gzl<\/p>\n

edit by gzl<\/p>\n<\/div>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

LL12 Forklift Leaf Chain | DIN\/ISO 4347 | 2\u00d72 to 8\u00d78 Lacing | 19.05mm Pitch | Case-Hardened Alloy Steel | UK Industrial Supplier<\/p>","protected":false},"featured_media":176,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[63],"product_tag":[],"class_list":["post-182","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\/ja\/wp-json\/wp\/v2\/product\/182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/media\/176"}],"wp:attachment":[{"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/media?parent=182"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/product_brand?post=182"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/product_cat?post=182"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/leaf-chain.com\/ja\/wp-json\/wp\/v2\/product_tag?post=182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}