1. Hollow Pin Chains (FK Chains)

This section covers a wide range of hollow pin chains based on roller chain designs, including series such as RC-HP, DP-HP, A55, 1590HP, BS-HP, and others. These chains are designed for diverse applications like sorting, handling, binding, accumulation, and agriculture.

• Variants include long pitch, solid pins, straight side plates, and specialized coatings (rubber, polymer blocks).
• Standard sprockets fit chains with straight side plates, making them ideal for conveyor systems.
• Multiple strand chains are available to increase load capacity.

2. Light Conveying Chains

This section details roller chains used in light material handling, specifying key parameters:

• Available in styles CLS, CLC, OL, FKPL, and multiple strand versions.
• FK double pitch chains have twice the pitch of standard chains but use identical parts, optimized for conveyor use.
• Conformity with DIN/ISO and ANSI standards is ensured.

3. Attachments for Roller Chains

Various attachments are described with detailed dimensions and coding:

• Extended pins (single/double) per pin link.
• Bent and straight lugs with one or two holes, on one or both sides.
• Attachment codes include WA-1, WK-1, WSA-1, WSK-1, A-1, K-1, SA-1, SK-1.
• Dimensions (M, d, J, Z, K) are specified for compatibility with chain types and pitches.

4. Double Pitch Chain Attachments

Similar attachment types are available for double pitch chains, facilitating customization for conveyor and handling applications with extended pins and various lug configurations.

5. Chain Types and Series

• S-Series, TGI, LF: Standard roller chains with specific attachment dimensions.
• RC-Series, FCP: Roller chains with various pitch sizes and attachment options.
• DP-Series: Double pitch chains with extended pins, conforming to ANSI and DIN standards.
• ANSI Chains: Chains meeting American National Standards Institute specifications, often cross-referenced with FK types.

6. Key Specifications and Parameters

• Pitch ranges from 9.525 mm to 101.6 mm depending on series.
• Width, roller diameter, plate thickness, and tensile strength vary by chain type.
• Attachment dimensions (M, d, N, J, S, L2, Z, K, C, X, L3, L4, L7, L8) define size and shape of attachments and pins.
• Tensile strength ranges from ~29,400 N to over 235,000 N.
• Weight per meter varies significantly, impacting design and handling.

7. Specialized Chain Types and Applications

• Double-Flex Chains: Induction-hardened pins and sliding surfaces for curved conveyors.
• Book Binding Chains: ANSI types with pitches 12.7 mm and 19.05 mm, used in bookbinding machinery.
• Block Chains: Steel and stainless steel variants for food industry applications.
• Chocolate Moulding Chains (CMC-Series): High precision chains for chocolate moulding processes.
• Snap-on Chains: Compatible with plastic top slats and standard ANSI sprockets, suitable for straight and curved conveyors.
• Polyacetal Block Chains: Operating between -10°C and +70°C, with nickel-plated or stainless steel pins.
• Gripper Chains (GRP-Series): High precision chains for plastic film transport in packaging.
• Accumulation Chains (SF-Series): Equipped with extra rollers to support temporary stopping and repositioning of conveyed items.

8. Materials and Treatments

• Induction-hardened pins and sliding surfaces for durability.
• Materials include malleable cast iron, welded steel, stainless steel (304), nickel-plated steel, and polyacetal blocks.
• Special coatings for corrosion resistance and food industry compliance.

9. Polymer Block Chains with Elastomer Profiles

• Materials: Natural Rubber (NR), Nitrile Butadiene Rubber (NBR), Polyurethane (PUR).
• Shore hardness ranges from 65±5 (NR) to 85±5 (PUR).
• Temperature ranges from -50°C to +130°C depending on material.
• Wear, scratch, aging, and chemical resistance improve from NR to PUR.

10. Agricultural Chains

• Manufactured per DIN 8189 and factory standards.
• Breaking loads exceed standard values due to through-hardened side plates.
• Pitch sizes from ~29.21 mm to 66.27 mm.
• Pin diameters from 4.45 mm to 9.0 mm; plate thickness 1.8 mm to 5 mm.
• Tensile strengths from 21,500 N to 85,000 N.
• Available in steel and zinc-plated versions for corrosion resistance.
• Attachments include types A-1, K-1, F-45, F-1, with dimensions critical for machinery compatibility.

11. Critical Parameters and Recommendations

• Match pitch and roller diameter to application load and sprocket design.
• Attachment dimensions are essential for conveyor system compatibility.
• Tensile strength guides chain selection for safety and durability.
• Weight per meter affects motor sizing and structural support.
• Extended pin and double pitch chains offer flexibility for specialized conveying and sorting.
• Choose polymer block chains based on temperature and chemical exposure.
• For agricultural use, select chains compliant with DIN 8189 and with adequate breaking load.

12. Summary of Tables and Data

• Pitch sizes range from 9.525 mm to 101.6 mm.
• Roller diameters from 3.96 mm to 57.15 mm.
• Plate thicknesses from 1.3 mm to over 7 mm.
• Tensile strengths from ~10,000 N to 355,000 N depending on chain type.
• Weights vary from 0.22 kg/m to 25.5 kg/m.

Conclusion

This document is a comprehensive technical reference for selecting and specifying hollow pin and light conveying roller chains, including attachments and variants. It provides detailed mechanical, dimensional, and material data to support engineering and procurement decisions across industries such as food processing, packaging, agriculture, and assembly lines. The emphasis on standards compliance, modularity, and specialized chain types ensures suitability for diverse conveyor and handling applications.