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Series 4.1

Product catalog summary

Overview: This document is a technical manual for Siegling Prolink Series 4.1 modular belts, designed for light to medium-duty applications in both food and non-food sectors. It provides detailed information on specifications, compliance, and configurations.

Specifications: The Series 4.1 belts have a small pitch of 14 mm (0.55 in) for applications requiring small transfer gaps. They feature an easy-to-clean design with wide hinges and a unique sprocket design for optimal load distribution. The belts are available in various surface patterns and opening areas, with a minimum width of 25 mm (0.98 in) and width increments of 12.5 mm (0.5 in).

Belt Types: The document describes several belt types within Series 4.1, including:

S4.1-0 FLT: Closed, smooth surface with 0% opening.
S4.1-0 NPY: Closed surface with a negative pyramid pattern for improved release of wet or sticky products.
S4.1-0 FRT1: Closed surface with a friction top design to optimize grip and channel dirt away.
S4.1-21 FLT: Open (21%) smooth surface for excellent air circulation and drainage.
S4.1-21 NTP: Open (21%) surface with nub top for good release of wet and sticky products.

Materials and Colors: The belts are available in materials such as PE, POM, PP, and POM-MD, and colors including blue, black, uncolored, and white. They comply with FDA, EU, and Japanese MHLW regulations.

Design Characteristics: The belts are designed with wide sprocket teeth for superior engagement and strength. They are NSF-compliant and manufactured in certified Forbo plants worldwide.

Technical Data: Detailed technical data is provided on belt dimensions, nominal belt pull, weight, width deviation, and temperature ranges. Information on flex radii and compliance with various international standards is also included.

Regulatory Compliance: The belts comply with FDA 21 CFR, EU regulations (10/2011 and 1935/2004), and Japanese MHLW Notification 370, ensuring the safety of raw materials and migration thresholds.

Sprockets and Profiles: Information on sprocket sizes and configurations is included, emphasizing superior engagement and load transmission. Profiles are designed for improved release of wet and sticky products.

Additional Features: The belts are designed with various surface patterns and types, such as flat top, no cling, and nub top, to suit different operational needs. A legend explaining the coding system for series, open area, surface pattern, type, style, color, and material is provided.

Temperature Influence: All measurements and tolerances are specified at 21°C, with adjustments for temperature deviations detailed in the Prolink manual.

Catalog excerpts

EXCERPT FROM 1.2 DETAILED SERIES INFORMATION PROLINK ENGINEERING MANUAL 01/24 (Ref-No. 888) siegling prolink modular belts SERIES 4.1 Straight running belts Pitch 14 mm (0.55 in) D Forbo Siegling GmbH Lilienthalstraße 6/8, D-30179 Hannover Phone +49 511 6704 0 www.forbo-siegling.com, [email protected] Siegling Prolink Engineering Manual · 01/2024

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siegling prolink modular belts Straight running belts | Pitch 14 mm (0.55 in) Belts for light to medium-duty food and non-food applications Side view scale 1:1 Available surface pattern and opening area S4.1-0 FLT Closed, smooth surface 14 (0.55) Design characteristics – Small pitch belt for applications requiring small transfer gaps – Hinges that open wide and flat channels on the underside ensure the belt is easy to clean S4.1-0 NPY Closed surface with negative pyramid pattern S4.1-0 FRT1 Closed surface with friction top – Unique sprocket design with rounded tooth edges provides ideal load...

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BELT TYPESsiegling prolink modular belts Straight running belt | Pitch 14 mm (0.55 in) Closed, smooth surface | Flat top surface d. Belt dimensions Available standard materials 3> PE Mold to order belts Mold to width available in: 38 mm (1.5 in), 50 mm (1.97 in), 100 mm (3.94 in), 125 mm (4.92 in), 200 mm (7.87 in) ■ BL (Blue), ■ BK (Black), UC (Uncolored), WT (White) All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter 4.4 ‘Temperature influence". All imperial dimensions (inches) are rounded off. 11 Flex radii: r1 = side flex, r2 = front...

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siegling prolink modular belts SERIES 41 | BELT TYPES Straight running belt | Pitch 14 mm (0.55 in) Closed surface | Negative pyramid pattern for superb release characteristics when conveying wet or sticky products Belt dimensions Available standard materials 3> Belt Mold to width available in: 200 mm (7.87 in) All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter 4.4 ‘Temperature influence". All imperial dimensions (inches) are rounded off. 11 Flex radii: r1 = side flex, r2 = front flex on roller, r3 = back flex on load bearing roller, r4...

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BELT TYPESsiegling prolink modular belts Straight running belt | Pitch 14 mm (0.55 in) S4.1-0 FRT1 | 0 % Opening | Friction top (Design 1) Closed surface | Friction top with slightly elevated triangular shapes to reduce contact area/increase contact pressure to optimise grip and to channel dirt away from the friction surface Available standard materials 3> Belt Mold to order belts Mold to width available in: 50 mm (1.97 in), 125 mm (4.92 in), 200 mm (7.87 in) ■ BG (Beige), ■ BL (Blue), nBK (Black), UC (Uncolored), WT (White) All measurements and tolerances apply at 21 °C; for temperature deviations...

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siegling prolink modular belts SERIES 41 | BELT TYPES Straight running belt | Pitch 14 mm (0.55 in) Large open area (21 %) for excellent air circulation and drainage | 70 % contact area | Smooth surface Variant specific dimensions [mm (in)] Belt dimensions Available standard materials 3> Belt Mold to order belts Mold to width available in: 38 mm (1.5 in), 50 mm (1.97 in), 100 mm (3.94 in), 200 mm (7.87 in) ■ BK (Black), ■ BL (Blue), UC (Uncolored), WT (White) All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter 4.4 "Temperature influence"....

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BELT TYPESsiegling prolink modular belts Straight running belt | Pitch 14 mm (0.55 in) S4.1-21 NTP | 21 % Opening | Nub top (round studs) Large open area (21 %) for excellent air circulation and drainage | 4 % contact area | Nub top surface for good release of wet and sticky products | Version available without round studs at the side (25 mm indent) Belt dimensions Available standard materials 3> Belt Mold to width available in: 200 mm (7.87 in) ■ BL (Blue), UC (Uncolored), WT (White) All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter...

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siegling prolink modular belts SERIES 4.1 | SPROCKETS Straight running belt | Pitch 14 mm (0.55 in) Wide sprocket teeth ensure superior sprocket engagement and load transmission Main dimensions Sprocket size (Number of teeth) Shaft bores (• = Round, ■ = Square) 20 mm Material: PA, Color: LG ■ LG (Light gray) All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter 4.4 ‘Temperature influence". All imperial dimensions (inches) are rounded off. For detailed sprocket and shaft dimensions see appendix 6.3 Number of sprockets (sprocket spacing distance)...

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siegling prolink modular belts Straight running belt | Pitch 14 mm (0.55 in) S4.1 FLT/NCL PMU No cling surface to improve release of wet and sticky products and Flat top surface for dry products Basic data Height (h) Material mold to order mold to order Molded width: 200 mm (7.9 in) 25 (0.98) (minimum indent) 12.5 (0.49) (positioning increment) Standard configuration S4.1-0 FLT/NCL PMU Indent configuration S4.1-0 FLT/NCL PMU All measurements and tolerances apply at 21 °C; for temperature deviations please see Prolink manual chapter 4.4 “Temperature influence“. All imperial dimensions (inches)...

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Percentage open area Format: xx E.g. 20 = 20 % For sprockets: number of teeth Format: "Z"xx E.g. Z12 = 12 teeth

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