Beschrijving
What Makes the LL20 Series the Backbone of Heavy Lifting?
The LL20 series leaf chain — also widely known as a plate chain or forklift chain — represents a critical component in the lift mast assemblies of forklifts, hoists, and overhead cranes operating in warehouses, ports, and industrial facilities across the United Kingdom and beyond. With a 31.75 mm pitch and plate lacing configurations running from 2×2 through to 8×8, this leaf chain series is engineered to deliver reliable, repeatable load-bearing performance in applications where failure simply is not an option. Every link in the LL20 series is designed with accumulated engineering experience to handle dynamic shock loads, extended fatigue cycles, and the corrosive demands of real-world industrial environments.
Whether your operation runs three shifts a day at a cold-store distribution hub in Manchester, a container port in Felixstowe, or an automotive plant in the West Midlands, the LL20 leaf chain is manufactured to consistently exceed the performance benchmarks set by DIN 8152 and ISO 4347. The chain’s laminated plate construction distributes tensile loads evenly across all link plates, dramatically reducing peak stress concentrations and extending service intervals compared to single-strand alternatives. This translates directly into lower maintenance downtime and a reduced total cost of ownership — a factor that procurement engineers and plant managers across Britain increasingly prioritise when specifying lifting chain for high-throughput operations.
Core Performance Advantages
Ultimate Tensile Strength Up to 380 kN
The LL2088 (8×8 lacing) achieves a minimum ultimate tensile strength of 380 kN / 86,363 lbf, making it suited for the heaviest forklift mast assemblies in service today.
Laminated Plate Construction
Multiple link plates are symmetrically laced around precision-ground pins, distributing tension evenly. This design minimises stress concentration and significantly extends fatigue life under cyclic loading.
DIN 8152 / ISO 4347 Compliant
Full compliance with international standards ensures dimensional interchangeability with OEM forklift systems and simplifies maintenance scheduling for fleet managers in the UK.
Scalable Lacing Options
Four lacing configurations (2×2, 4×4, 6×6, 8×8) allow engineers to match the precise load capacity requirement without over-specifying — keeping component weight and cost in balance.
High-Grade Alloy Steel
Link plates are cold-stamped and heat-treated from low-alloy carbon steel, achieving consistent hardness and ductility that withstand both static overloads and repetitive impact cycles common in pallet-handling environments.
Extended Service Life
Precision pin-to-plate clearances reduce wear elongation, allowing operators to run longer inspection intervals and reduce unplanned downtime — a key factor for 24/7 logistics operations across UK distribution centres.
Technical Specifications
All dimensions per DIN 8152 / ISO 4347. Data verified against factory inspection records.
| DIN/ISO Chain No. | Pitch P (mm) | Plate Lacing | Plate Depth h2 max (mm) | Plate Thickness T max (mm) | Pin Diameter d2 max (mm) | Pin Length L max (mm) | Ultimate Tensile Strength Q min (kN / lbf) | Average Tensile Strength Q0 (kN) | Weight per Metre q (kg/m) |
|---|---|---|---|---|---|---|---|---|---|
| LL2022 | 31.75 | 2 x 2 | 26.40 | 3.5 | 10.19 | 20.1 | 95.0 / 21,591 | 109.2 | 2.33 |
| LL2044 | 31.75 | 4 x 4 | 26.40 | 3.5 | 10.19 | 33.8 | 190.0 / 43,182 | 218.5 | 4.40 |
| LL2066 | 31.75 | 6 x 6 | 26.40 | 3.5 | 10.19 | 50.1 | 285.0 / 64,773 | 324.6 | 6.79 |
| LL2088 | 31.75 | 8 x 8 | 26.40 | 3.5 | 10.19 | 64.0 | 380.0 / 86,363 | 435.1 | 8.90 |
Construction, Materials & Operating Principles
Link Plate Material
Each link plate is cold-punched from low-alloy carbon steel strip (typically equivalent to DIN 16MnCr5 or similar), then individually heat-treated to achieve the required tensile strength whilst retaining adequate ductility. Surface finishing options include shot-blasting plus rust-inhibiting oil for standard applications, and zinc-nickel or black-oxide coatings for environments with moderate corrosion exposure such as outdoor port storage areas or food-grade packaging facilities.
Pin & Bushing System
The connecting pins are precision-ground from case-hardened alloy steel, maintaining a tight dimensional tolerance across the full pin length. In the LL20 series, the pin diameter across all four lacing variants is standardised at 10.19 mm (d2 max), which simplifies spare-parts inventory management for UK maintenance teams. The cotter-pin or rivet-type end retention prevents axial displacement under the lateral forces experienced during mast side-shift operations on reach trucks and counterbalance forklifts.
Load Distribution Mechanism
The defining characteristic of a leaf chain versus a roller chain is the absence of rollers and bushings for power transmission. Instead, the leaf chain acts purely in tension — the stacked link plates share the applied load across all parallel strands simultaneously. For an LL2088 (8×8 lacing), sixteen individual plate strands carry the load in unison, which is why average tensile strengths reach 435.1 kN. This mechanism is what makes the leaf chain the preferred choice for fork-lift mast, crane hoist, and industrial counterbalance applications.
Typical Application Scenarios
The LL20 leaf chain is deployed in a broad range of British and international industries: warehouse order-picking trucks and reach stackers at UK logistics hubs; hydraulic press and die-change lifts in automotive manufacturing (Midlands, Sunderland); marine crane derricks at Aberdeen and Southampton; agricultural equipment hoists; and vertical reciprocating conveyors in multi-storey retail distribution centres. The 31.75 mm pitch ensures OEM-level fitment on a wide range of Linde, Toyota, Jungheinrich, and Crown forklift mast profiles.
Selecting the Right LL20 Variant for Your Application
| Chain Model | Lacing | Typical Load Range | Recommended Application |
|---|---|---|---|
| LL2022 | 2 x 2 | Light — up to 95 kN | Light-duty pallet movers, small counterbalance forklifts, conveyors |
| LL2044 | 4 x 4 | Medium — up to 190 kN | Mid-range reach trucks, hydraulic dock levellers, general lifting hoists |
| LL2066 | 6 x 6 | Heavy — up to 285 kN | High-racking very-narrow-aisle trucks, heavy press lifts, marine cranes |
| LL2088 | 8 x 8 | Extra-Heavy — up to 380 kN | Port container handlers, heavy forging presses, offshore platform cranes |
Customer Success Stories
Real-world results from industrial operations across the UK and Europe.
Midlands Automotive Stamping Facility, UK
A Tier-1 automotive component manufacturer operating a large stamping facility in the West Midlands was experiencing frequent leaf chain failures on their die-transfer press lifts — with unplanned stoppages averaging twice per month. The original-equipment chains were a generic 4×4 lacing rated at 180 kN, already running near the upper end of their working load limit during tool-change cycles. After a detailed load-cycle analysis carried out with our applications team, we recommended switching to LL2066 (6×6 lacing, 285 kN minimum tensile strength). Within the first three months of installation, the facility recorded zero chain-related stoppages. Annual maintenance cost on the press-lift assemblies dropped by approximately 34%, and the engineering team confirmed the chains showed no measurable elongation at the six-month inspection. The plant subsequently standardised on LL2066 across all eight press bays.
“We’ve been sourcing LL2044 chains for our fleet of 40-tonne reach stackers at the Port of Tilbury for the past four years. Delivery lead times are consistently short, and the dimensional accuracy means our fitters can swap chains without any adjustment — a real time-saver on a busy quay.”
“As a procurement specialist for a cold-chain distribution network across Scotland and Northern England, quality and traceability are non-negotiable. Every batch of LL2022 and LL2044 chains we receive comes with full material certificates and dimensional inspection reports. That level of documentation gives our QHSE team complete confidence.”
“We required a non-standard connecting link configuration on our bespoke overhead crane hoists — the standard market options simply didn’t work. The technical team at Ever Power went through our CAD drawings, proposed a custom LL2088 assembly with modified end links, and delivered prototypes within two weeks. Exactly what we needed.”
Our Manufacturing Capability & Custom Engineering
Ever Power’s manufacturing complex houses a dedicated leaf chain production line equipped with automated plate-stamping presses, CNC pin-grinding centres, and multi-stage heat treatment furnaces — all operating under ISO 9001-certified quality management procedures. Each batch of LL20 series chains undergoes 100% tensile proof-load testing on electronically calibrated test benches, with results documented in traceable inspection records that accompany every shipment. This end-to-end control over the production process is what allows us to consistently meet and exceed the published DIN 8152 tensile strength figures.
Beyond standard catalogue items, Ever Power provides a comprehensive custom chain engineering service for B2B clients with non-standard requirements. Our applications engineers can work from your assembly drawings or sample chains to design bespoke link-plate profiles, modified pitch lengths, special connecting-link geometries, or alternative surface treatments. We also offer pre-assembled chain kits with calibrated length, pre-stretched to reduce initial elongation during commissioning. Whether you need a single prototype for validation or a full production run of 5,000 metres, our flexible manufacturing cells can accommodate the order size with competitive lead times to UK and EU destinations. Custom quotations are typically issued within 48 working hours of receiving your specification.
Frequently Asked Questions
What is the difference between an LL2044 and an LL2066 leaf chain, and which one should I order for my UK warehouse forklift?
The LL2044 uses a 4×4 plate lacing with a minimum tensile strength of 190 kN, making it well-suited for mid-range counterbalance and reach trucks typically found in UK warehouse environments handling loads up to approximately 2.5–3 tonnes. The LL2066 carries a 6×6 lacing rated at 285 kN minimum, appropriate for heavier very-narrow-aisle trucks, high-racking stackers, or applications with significant dynamic shock loading. If you can share your forklift model and mast specification, our technical team can confirm the correct variant — email us at [email protected] for a same-day recommendation.
How do I get a price and delivery quote for LL20 series leaf chain delivered to a site in England or Scotland?
The quickest route is to email [email protected] with the chain model number (e.g., LL2044 or LL2066), the quantity in metres, and your delivery postcode in England or Scotland. We will return a firm price and estimated lead time within one business day. We ship regularly to UK logistics hubs and can arrange courier, pallet, or groupage freight depending on order volume. Bulk orders for distribution centres or OEM assembly lines receive preferential pricing — please mention your annual volume forecast in your enquiry.
Are Ever Power LL20 leaf chains compliant with DIN 8152 and ISO 4347 standards required by UK health and safety regulations?
Yes. Every LL20 series chain produced at our facility is manufactured and tested in full compliance with DIN 8152 and ISO 4347, which are the internationally recognised standards covering dimensional and mechanical performance of leaf chains used in forklift mast applications. Under the UK’s Lifting Operations and Lifting Equipment Regulations 1998 (LOLER) and PUWER, lifting components must be fit for purpose and appropriately rated — our chains meet these obligations. Each shipment includes a material conformity certificate and proof-load test report for compliance documentation.
Can I order a custom-length LL20 leaf chain with non-standard end attachments for a bespoke crane hoist project?
Absolutely. Custom chain assemblies are one of our core strengths. We can manufacture LL20 series chains to any specified length, with a wide range of end-link options including clevis ends, hook connectors, threaded rod ends, and weld-on lugs. Simply provide your assembly drawing or sample, and our applications engineering team will review the geometry and propose the most suitable configuration. Custom prototypes are typically delivered within two weeks of drawing approval, with full production batches available at competitive lead times. All custom assemblies are proof-load tested before despatch.
How often should I inspect and replace the LL20 leaf chain on my forklift operating in a busy UK distribution centre?
Under UK LOLER regulations, all lifting equipment including forklift mast chains must be thoroughly examined at least every 12 months by a competent person — or every six months if the equipment is used to lift people. As a practical guideline, leaf chains should be replaced when wear elongation exceeds 3% of the nominal pitch length over a 300 mm measurement span, when visible cracks, pitting, or corrosion is detected on link plates, or when pin rotation is observed. In a high-throughput distribution centre running two or three shifts, annual replacement is often economically justified to eliminate failure risk. We can supply pre-measured, pre-stretched replacement chains to simplify your maintenance schedule.
Where can I find a reliable leaf chain supplier in the UK who can deliver LL2088 heavy-duty forklift chain quickly?
Ever Power maintains stock of high-demand LL20 series variants including LL2088, and we despatch to UK mainland addresses via next-day or 2-day freight services for in-stock items. For urgent requirements at port facilities in Southampton, Felixstowe, or Liverpool, or for industrial operations in the Midlands, Yorkshire, or Scotland, we recommend contacting [email protected] at the start of the business day for same-day despatch confirmation. Larger, less urgent orders can be consolidated onto weekly groupage shipments to reduce freight cost.
Ready to Specify LL20 Series Leaf Chain for Your Project?
Send us your specification, load requirements, or existing chain data and our engineering team will respond with a detailed recommendation and competitive price within one business day.
Get a Quote — [email protected]
edit by gzl
