VEHICLE FITMENT
TYPE	BL series leaf chains
OE NUMBER
MATERIAL	Metal
SIZE	Standard size or ODM size
CUSTOMIZED	YES
CONDITION	Brand new
MOQ
PACKAGE	Standard or as customer requirements

 

BL Series Leaf Chain — ISO/LH and ANSI/BL Reference Range

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Product Overview

CARPARTNER supplies BL series leaf chains for lifting, pulling, counterweight and material-handling equipment. The supplied catalog page presents ISO/LH and ANSI/BL chain-number pairs from the 12.7 mm pitch group through the 38.10 mm pitch group, with seven plate-lacing options for each pitch family.

The BL series leaf-chain construction shown in the drawing uses stacked plates and pins without roller links. The main drawing identifies pin diameter d2, plate height h2, pitch P, plate thickness T and pin length L. The plate-lacing profiles shown are 2×2, 2×3, 3×4, 4×4, 4×6, 6×6 and 8×8.

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Key Features

• BL/LH and ANSI/BL cross-reference: ISO/LH chain numbers are paired with ANSI/BL chain numbers in the supplied table.
• Seven plate-lacing configurations: 2×2, 2×3, 3×4, 4×4, 4×6, 6×6 and 8×8.
• Six pitch families: 12.70, 15.88, 19.05, 25.40, 31.75 and 38.10 mm.
• Wide lifting-chain reference range: The catalog covers LH0822/BL422 through LH2488/BL1288.
• Detailed engineering data: Plate height h2, plate thickness T, pin diameter d2, pin length L, ultimate tensile strength Q, average tensile strength Qo and weight per meter q.
• Lacing-based identification: The last digits in the model reference align with the plate-lacing format shown in the catalog, subject to confirmation against the approved drawing.
• Replacement and OEM-style supply: CARPARTNER can review original samples, ISO/ANSI model numbers, lifting equipment information and chain measurements.

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Technical Drawing Reference

The corrected technical drawing preserves:

• The stacked-plate BL leaf-chain assembly view
• The lower leaf-chain plate/pin view
• d2, h2, P, T and L labels
• Seven plate-lacing profiles: 2×2, 2×3, 3×4, 4×4, 4×6, 6×6 and 8×8
• The original bilingual title and blue catalog mark

The drawing supports visual configuration identification. Do not infer unlisted numerical values from the illustration alone.

Technical Parameters

All dimensional values are in mm. Q and Qo are shown in kN, and q in kg/m, matching the source table.

BL Chain Number and Lacing Guide

The supplied catalog pairs each ISO/LH number with an ANSI/BL number. The plate-lacing field identifies how many plates are arranged across the chain assembly. The visible combinations are:

• 2×2: two plate layers by two plate positions
• 2×3: two by three
• 3×4: three by four
• 4×4: four by four
• 4×6: four by six
• 6×6: six by six
• 8×8: eight by eight

Use the chain number and lacing together when identifying a replacement. A similar pitch with a different lacing can have different plate thickness, pin length, average tensile strength and chain weight.

Typical Applications

Public leaf-chain references describe BL/LH series chains as lifting and tension chains rather than ordinary roller-drive chains. Typical applications include:

• Forklift truck mast lifting systems
• Counterweight chains in machine tools and elevators
• Hoists, lifting equipment and material-handling machinery
• Container loaders and port handling equipment
• Draw benches and reciprocating pull systems
• Work platforms, vehicle lifts and other tension-linkage equipment

The source table does not identify one exclusive machine. Actual selection depends on the load case, lifting speed, acceleration, sheave/pulley geometry, chain length, end connections, safety factor and inspection requirements.

Selection Guide

Please send the following information for accurate identification and quotation:

1. Equipment type, manufacturer and model
2. ISO/LH chain number or ANSI/BL chain number
3. Pitch P and plate-lacing configuration
4. Plate height h2, thickness T, pin diameter d2 and pin length L
5. Required chain length and number of links
6. Sheave/pulley diameter, groove profile and alignment
7. Anchor bolt, clevis, end link or connection arrangement
8. Working load, lifted load, chain self-weight and dynamic/shock conditions
9. Lifting speed, duty cycle and acceleration/deceleration
10. Operating environment: dust, moisture, chemicals, temperature and washdown
11. Photos of the original chain, pin holes, end connections and equipment nameplate
12. Destination country and required delivery schedule

Do not select a lifting chain only by nominal pitch or tensile-strength number. Lacing, pin length, sheave compatibility, connection hardware and the approved safety calculation must be checked together.

Maintenance and Inspection Considerations

Maintenance must follow the lifting-equipment manufacturer’s service instructions and applicable workplace-safety procedures. General leaf-chain inspection should include:

• Measuring elongation or pitch change over a defined number of links
• Inspecting pin holes, pins, plate edges and contact surfaces for wear
• Checking for cracks, deformation, corrosion, galling or loose pins
• Inspecting the sheave/pulley groove and chain alignment
• Checking end links, anchors, clevises and connecting hardware
• Monitoring unusual noise, vibration, uneven lifting or chain tracking
• Keeping the chain clean enough for inspection and applying compatible lubricant
• Removing a chain from service when inspection criteria or the equipment manufacturer’s limit is reached

Do not use Q or Qo directly as a safe working load. Lifting-chain working limits, safety factors and replacement criteria must be determined by the equipment manufacturer, a qualified engineer or the applicable regulation/standard.

OEM / ODM and Custom Supply

CARPARTNER can review BL/LH leaf-chain requirements based on:

• ISO/LH and ANSI/BL model number
• Plate-lacing configuration
• Original chain sample or clear photographs
• Forklift, hoist, machine-tool or material-handling equipment data
• Measured pitch, plate height, plate thickness, pin diameter and pin length
• Required chain length and end-connection arrangement
• Approved material, heat-treatment, testing or traceability requirements

For non-standard or replacement configurations, please provide the original drawing or chain sample together with the machine model and load information. We will confirm the configuration, quotation basis and delivery schedule before order confirmation.

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