ALLIGATOR SPIRAL LACE Fastener System Low-Profile, Non-Metallic Splice For applications where a mechanical belt fastener is desired for ease of belt installation or quicker belt cleaning, but for one reason or another a metallic fastener cannot be used, consider Alligator Spiral Lace. Alligator Spiral Lace is a low-profile splice that is fabricated into the belt through a variety of splicing techniques. Depending on the installation method it can operate over pulley diameters as small as 13/32" (10 mm). It is available in white or blue polyester for applications demanding FDA-compliant materials, black polyester for general applications, or PEEK for high temperature applications. Spiral Lace Applications Alligator Spiral Lace is a non-metallic splice that is ideal for applications with metal detectors, food or pharmaceutical processing, x-ray equipment, or for applications with delicate product that is easily scratched that require non-marking/non-scratching splices. Advantages of a Hinged Splice Alligator Spiral Lace, like other Flexco mechanical splices, is constructed of two fastened belt ends that are joined by a hinge pin. This hinged splice makes installation on the conveyor structure simple as the belt can be fed into proper location, the belt ends meshed together, and the connecting pin inserted. For belts requiring frequent removal, such as regular sanitation for food applications, the hinged splice can save hours of downtime with each cleaning.
Leader Pins Simplify Pin Insertion ALLIGATOR SPIRAL LACE Fastener System CONNECTING PIN LEADER PIN Connecting pin installation can be difficult, given both the small diameter of the pin and the flexibility of the material. To ease and speed this process we offer Leader Pins, which attach a smaller diameter, rigid lead pin to the larger diameter, flexible connecting pin. The lead pin is easily fed through the splice, allowing the actual connecting pin to be pulled through. The use of Leader Pins often reduces pin insertion time by more than 75%. Alligator Spiral Lace Selection Chart Fastener Size Belt Thickness Minimum Pulley/ Nose Bar Maximum Operating Tension Max. Operating Temperature Approximate Pin Diameter in. mm in. mm P.I.W. kn/m F C in. mm ASL50 1/16 1.6 13/32 10 50 8.7 320 160.31.8 ASL60/ASL160 1/2 2.4 1/2 13 50 8.7 320 160.035.9 ASL90/ASL190 19/32 3.2 5/8 15 50 8.7 320 160.047 1.2 ASL80H 1/4 6.4 5/8 15 50 8.7 320 160.047 1.2 Ordering Information - Alligator Spiral Lace Length Ordering Item Length Ordering Item Feet Meters Number Code Feet Meters Number Code White - Single Web Black - Single Web 10 3 ASL50/3 19460 10 3 ASL60/3 19461 10 3 ASLB60/3 19486 33 10 ASL60/10 19462 100 30 ASL60/30 19463 100 30 ASLB60/30 05463 10 3 ASL90/3 19466 10 3 ASLB90/3 19485 33 10 ASL90/10 19467 100 30 ASL90/30 19468 100 30 ASLB90/30 19491 10 3 ASL160/3 19483 10 3 ASL190/3 19484 White - Double Web Black - Double Web 10 3 ASL60D/3 19476 33 10 ASL60D/10 19477 100 30 ASL60D/30 19478 10 3 ASL90D/3 19479 10 3 ASLB90D/3 19489 33 10 ASL90D/10 19480 33 10 ASLB90D/10 19480 100 30 ASL90D/30 19481 100 30 ASLB90D/30 19494 10 3 ASL100D/3 19488 Tan - Double Web - High Heat Blue Single Web 10 3 ASL80H/3 19470 10 3 ASLBLUE50/3 04416 10 3 ASLBLUE60/3 04417 10 3 ASLBLUE90/3 04418 Leader Pins (Note: Custom Lengths Available) 05200 POLY035X15FT-W/3FT (15-foot pin with 3-foot leader) 05201 POLY047X15FT-W/3FT (15-foot pin with 3-foot leader) Replacement Hinge Pins - Coils Feet Meters Ordering Number Item Code 100 30 ASLHP60 19473 100 30 ASLHP90 19474 100 30 ASLHP80 19475
X3094 Alligator Spiral Lacing Installation Instructions
Required Tools Novitool Ply 130 Novitool Aero Splicing Press Soldering Iron Carpenter s Square Pliers Side-cutting pliers Sanding Block / Sandpaper Small disposable cup Disposable application brush Required Supplies Conveyor Belting, two (or more) fabric plies Alligator Spiral Lacing (ASL) Single web construction 3 mm silicone pad 0.5 mm silicone cloth Metal pin Adhesive Primer 2
1. Cut belt ends square, yielding a belt length approximately 0.6" (15 mm) shorter than required finished length. Cut ASL to a length that is approximately 1.0" (25 mm) wider than belt width. 2. Using a Sanding Block / Sandpaper, lightly buff top and bottom surfaces of the fabric, raising a nap to improve mechanical bonding. 3. Mix / prepare adhesive primer per manufacturer s recommendations. 4. Using application brush, apply a thin coating of the prepared adhesive-primer to top and bottom ASL fabric. Apply adhesive primer up to stitch lines nearest spiral loop, keeping spiral loop area free from adhesive primer. 3
5. Follow adhesive-primer manufacturer s instructions regarding drying times and secondary coatings. Some drying of adhesive-primer is commonly recommended before being integrated with conveyor belt materials. It may be acceptable to accelerate the drying time using a hot air blower. Some manufacturers suggest multiple coatings of adhesive-primer. 6. Using the Novitool Ply 130 to prepare the belt ends, set the belt guide to the appropriate position as indicated in the below chart. ASL Type ASL50, ASLB50 ASL60, ASLB60 ASL90 ASLB90 Guide Position 1.75 (45 mm) 2.50 (63 mm) 2.25 (57 mm) 2.38 (60 mm) 7. Using the Ply 130, prepare belt ends. Position the Ply 130 adjustment to separate between two fabric plies of the belt. Residual of plastic inner-layer must remain on each plastic ply. Separation should be near center-plane of all fabric plies. 8. Separate belt ends. 9. Insert the fabric side of the adhesive-primer coated ASL, between the separated fabric plies. ASL fabric overlap should be upwards, towards the conveying side. The ASL should extend somewhat past each side of the belt. Insertion should be to a depth where the belt ends extend to the ASL stitch line, furthest from the spiral loop. 4
10. Using a soldering iron, fix ASL into belt at this position, fusing belt inner-layer to adhesive-primer on ASL. Belt end should follow stitch line across belt width, assuring a square splice. Sufficient fusing is required so that ASL does not disengage from belt during subsequent processing. 11. Insert a metal pin as a hinge pin, connecting the ASL spiral. Metal pin diameter should correspond with ASL type as indicated in the below chart. Pin should be minimally 4" (100 mm) longer than belt width. ASL Type ASL50, ASLB50 ASL60, ASLB60 ASL90, ASLB90 Metal Pin Diameter.040 (1.0 mm) 0.043 (1.1 mm) 0.054 (1.4 mm) 12. Place 3 mm silicone pad onto lower platen of Aero press. Trim ASL ends to be flush with belt edges. Place prepared ASL splice, conveying side upwards, onto 3 mm silicone pad. Fix belt in this position using Aero Belt Clamps. Fill balance of press width with belting. 5
13. Place 0.5 mm silicone cloth (or silicone matrix pad) on top of prepared splice. Install Aero Press upper beam, attaching it to lower beam using connecting bolts. 14. Fuse ASL into belt using Aero Press. Splice parameters will be similar as with finger splicing. Belt inner-layer should melt, flowing slightly past belt ends, but not reaching spiral loops. 15. On the bottom side, belt inner-layer should melt, flowing slightly past belt ends, but not reaching spiral loops. 6
16. Remove belt from Aero press. Use pliers to remove metal pin from ASL. Using carpenters square and knife, remove excess belt material, yielding straight belt edges. 17. Use side-cutting pliers to remove a single spiral loop from outside edges of ASL. This will help prevent spiral loop from catching conveyor frame. Using soldering iron, cauterize ASL fabric at each belt edge to prevent fraying. Install plastic hinge pin. 7