Agriculture Chain Lumber-Wood Chains

Agriculture Chain Lumber-Wood Chains are heavy-duty conveyor chains designed for moving logs, lumber, wood products, and bulk agricultural materials. Their roller-and-side-plate construction provides controlled conveying under shock loads and abrasive operating conditions. Standard and custom dimensions, attachments, lengths, and configurations are available for OEM applications.

 

 

Parameter	Typical Specification
Chain Type	Lumber Conveyor Chain
Chain Series	81X / 81XH / 81XHH
Pitch	66.27 mm
Roller Diameter	Approx. 23.0 mm
Pin Diameter	Approx. 11.1 mm
Inner Width	Approx. 27–28 mm
Plate Thickness	Approx. 4.0–7.94 mm
Overall Width	Configuration-dependent
Material	Carbon Steel / Alloy Steel
Construction	Riveted
Tensile Strength	Approx. 106.7–191.1 kN, depending on series
Attachment Type	Standard / Attachment-equipped
Reference Standard	ANSI-based 81X series / Customer Specification

 

 

Heavy-duty side plates use thicker plate sections on higher-load configurations to improve resistance to impact and deformation during wood and bulk-material conveying.
Hardened pins, bushes and rollers provide improved wear resistance at the main articulation points, helping maintain chain movement under repetitive loading.
Roller-type construction reduces sliding contact with sprocket teeth and conveyor components, supporting smoother chain engagement and controlled material transport.
Riveted chain assembly provides a secure connection between chain components, while alternative cottered construction can be supplied for specified maintenance requirements.
Attachment-compatible design allows flights, crossbars, paddles or other conveying components to be mounted for application-specific handling of logs, boards and agricultural materials.

 

 

Log Deck Conveyors: Transfers logs from storage or feeding areas toward debarking, sawing or processing equipment.
Sawmill Lumber Conveyors: Moves cut boards and timber between sawing, sorting and stacking stations.
Wood Chip Conveyors: Carries wood chips and related bulk material through processing and conveying systems.
Agricultural Material Conveyors: Handles bulk agricultural products where a robust chain drive is required for continuous conveying.

 

 

Customizable Item	OEM Options / Buyer Requirements
Chain Dimensions	Standard 81X-series or customer drawing
Chain Length	Specified pitch count or assembled length
Material Grade	Carbon steel, alloy steel or specified grade
Plate Configuration	Standard, heavy-duty or custom profile
Pin Configuration	Standard, extended or customer-specified length
Attachment	Extended pins, crossbars, flights, paddles or custom attachments
Attachment Spacing	Customer-specified pitch interval
Heat Treatment	According to required wear and load conditions
Surface Treatment	Oil coating, black oxide or specified treatment
Sprocket Matching	Chain dimensions coordinated with existing sprocket
Marking	Logo, part number, batch number or other identification

 

 

High-Impact Log Decks (Shock Load Focus)
Material: 40Cr / 4140 Alloy Steel side plates with through-hardening.
Design Advantage: Prevents side plate stretching and hole elongation when heavy logs are dropped onto the conveyor.
Corrosive & Wet Sawmill Lines (Moisture & Acid Focus)
Material: Zinc-nickel plating or Dacromet coating (500+ hours salt spray test pass).
Design Advantage: Resists organic wood acids and outdoor moisture, eliminating rust-induced pin freeze.
High-Speed Board Sorters (Anti-Wear Focus)
Material: 20CrMnTi carburized bushes and seamless cold-drawn rollers.
Design Advantage: Reduces high-frequency friction against drive sprockets, cutting maintenance downtime.

 

 

Raw Material Inspection: Verify steel grade, material certificates and incoming dimensions before production release.
Plate Blanking: Punch side plates from controlled steel stock according to approved dimensional drawings.
Hole Forming: Precision punching and sizing of pin and roller holes to maintain component alignment.
Pin, Bush & Roller Machining: Turn, bore, grind and finish cylindrical components according to dimensional tolerances.
Heat Treatment: Apply quenching, tempering or carburizing processes according to the component's required wear and strength characteristics.
Surface Finishing: Remove scale and processing residues before oil coating or specified surface treatment.
Component Inspection: Check pitch, hole diameter, plate thickness, roller diameter, pin dimensions and component fit.
Chain Assembly: Assemble plates, bushes, rollers and pins under controlled production procedures.
Chain Length Inspection: Verify pitch count, assembled length and connection condition before packing.
Tensile / Load Testing: Perform destructive or sampling tensile tests according to the agreed inspection plan and applicable product specification.
Visual & Functional Inspection: Check articulation, roller rotation, rivet condition, attachment position and visible surface defects.
Final Inspection & Traceability: Confirm quantity, configuration, packaging and batch identification against the purchase order before shipment.

 

 

Rust Prevention: Micro-wax anti-rust dipping ensuring 12-month outdoor storage resistance without degreasing issues.
Structural Bundling: Pre-stretched 5-meter or 10-meter strands wrapped in heavy-duty VCI (Vapor Corrosion Inhibitor) plastic film.
Reinforced Crating: ISPM-15 compliant fumigation-free wooden cases with internal steel strapping to prevent shifting during container transit.
Traceability Labeling: Outer crate marked with PO number, chain specification, net/gross weight, and batch tracking QR code for fast warehouse receiving.

 

 

 

 

 

 

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