CONTACT PAD GUIDE. A pad for every paper

Transcription

1 CONTACT PAD GUIDE A pad for every paper

2 Recommended Pad Types Printing Papers Recommended Pad Types Newsprint RXH pg. 4, UDP pg. 6 Flexipad pg. 10 Cascade Cast pg. 1, Hinged pg. 9 Coated/Magazine (LWC) RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Cascade Cast pg. 1 Supercalendered (SC) clay coated RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Cascade Cast pg. 1 Lithographic/Fine Cascade Cast pg. 1 RXH pg. 4, UDP pg. 6 Irathane pg. 7 White Printing Cascade Cast pg. 1 RXH pg. 4, UDP pg. 6 Irathane pg. 7 Packaging Papers Kraft Linerboard/Preprint Ribbed Cast pg. 2 RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Kraft Medium/Fluting Ribbed Cast pg. 2 RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Test Liners/Grey Carton Ribbed Cast pg. 2 RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Milk Carton/Waxed RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Linerboard-coated Ribbed Cast pg. 2 RXH pg. 4, UDP pg. 6 Irathane pg. 7 Tissue Low Density Tissue Facial/Soft toilet Tissue Convex pg. 14 Medium Density Tissue Toweling Tissue Double Diameter pg. 13 High Density Tissue Industrial Tissue Single Radius pg. 12 Tissue Dry-Lap/Roll Pulp Cascade Cast pg. 1 Specialty Papers Gypsum Board Facing Cascade Cast pg. 1 Ribbed Cast pg. 2 RXH pg. 4, UDP pg. 6 Glassine/Greaseproof RXH pg. 4, UDP pg. 6 Ribbed Cast pg. 2 Plastic/Polywrapped Cascade Cast pg. 1 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6 Irathane pg. 7 Carbonless Carbonless pg. 5 RXH pg. 4, UDP pg. 6 Bolt-On Rubber pg. 8, Bolt-On UDP pg. 6

3 CASCADE CAST Excellent general purpose pad for most paper types including newsprint, kraft, tissue (see tissue section), gypsum board facing, dry-lap (rolled pulp), white printing and lithographic/fine paper. Diamond pattern provides a multi-purpose gripping surface. Orientation of diamond pattern provides excellent friction in horizontal and vertical directions. G-Series ribs add inter-layer friction which will help prevent telescoping. (Available only with standard size G-series pads.) Available in standard size as a cast pad, other sizes as fabricated. Not recommended for large kraft rolls with high recycled content approaching maximum clamp capacity. For this application use the ribbed cast pad (see page 2). Not recommended for slick stock. Suitable for virgin or medium recycled kraft in average capacity applications. Choose the optional cast surface on the G-Series if unwrapped fine paper is to be handled. \ Note: Optional sized pads for G-Series clamps will be Cascade Cast without ribs. G-Series Cast Surface rounded edges radiused corners diagonal ribs G-Series high strength casting pattern reverses F-Series and G-Series diamond pattern Cascade Cast surface standard on F-Series/ optional on G-Series 1

4 RIBBED CAST Kraft papers (linerboard and medium/fluting), preprint, gypsum board facing, linerboard-coated and glassine/greaseproof. Cascade cast surface Cast-in ribs provide increased friction compared to standard cast pad. Reduce risk of telescoping layers. Allows decrease in required clamping force. Limited to 77F-120F and 60"-72" diameter rolls as cast pad. Available as a custom/fabricated pad on other models and pad sizes. Standard on 90F swing frame clamps. cast-in ribs rounded edges Ribbed cast surface high strength casting radiused corners 2

5 SPRAY METAL Multi-purpose pad for most types of paper, especially those sensitive to imprinting. Stainless steel grit surface provides excellent friction. Has no raised textured surfaces that would potentially mark paper sensitive to imprinting. Surface can be applied to any size or radius pad. Steel backing plate is repairable if bent during use. Pad available in any size. May require periodic cleaning of paper that becomes lodged in friction surface. radius to match roll diameter Spray Metal surface generous radius on corners 3

6 BONDED NON-MARKING BLACK RUBBER RXH-SERIES (Rubber Cross Hatched) Used with newsprint, supercalendered SC, coated/magazine papers LWC, milk carton and waxed stock, glassine/greaseproof and white printing. Cross hatched surface to prevent suction cup effect and increase friction. Large chamfered edge to improve knifing between rolls. 5/16" (8 mm) layer of rubber. Non-marking rubber compound. Protective metal edge guard helps prevent rubber from peeling. chamfered edges Reduces pressure points and conforms to roll surface due to resiliency of rubber. Used in applications where a resilient surface is beneficial to prevent marking the roll. Excellent frictional characteristics. Smooth, non-rxh pattern bonded rubber also available. Available in various measures of hardness. (65 durometer is standard and recommended for most applications. Friction increases with lower durometer. Durability increases with higher durometer.) Available in custom pad sizes. Cross-hatched, non-marking rubber surface cross hatch surface radiused corners edge guard 4

7 CARBONLESS Carbonless. Extra thick cross hatched surface to provide a cushioned clamping surface and excellent friction. Large chamfered edge to improve knifing between rolls. 11/16" (17 mm) layer of rubber. Non-marking rubber compound. Protective metal edge guard helps prevent rubber from peeling. chamfered edges Reduces pressure points and conforms to roll surface due to resiliency of rubber. Used in carbonless applications where slight (up to 1/4") variations in roll diameter exist on narrow width rolls. 40 durometer is standard. Higher durometer not recommended for carbonless paper. Available in custom pad sizes. Cross-hatched, non-marking rubber surface cross hatch surface radiused corners edge guard 5

8 BONDED URETHANE UDP Series (Urethane Domed Profile) or Smooth Surface Supercalendered SC, milk carton and waxed stock, coated/magazine LWC, kraft linerboard, kraft medium/fluting, preprint, fine papers, glassine/greaseproof, white printing and newsprint. chamfered leading edges 5/16" (8 mm) thick layer of durable urethane bonded to a special pad casting with a perimeter edge to protect the urethane when wedging between loads. Urethane is excellent pad material for use on difficult-to-handle papers. Domed oval surface helps prevent suction cup action in humid climates, increases friction and resiliency of pad surface. More durable than rubber. Used when a resilient surface is beneficial to decrease roll damage by allowing the pad to conform to the roll. Excellent frictional characteristics. Available in various measures of hardness (65 durometer is standard and recommended for most applications. Friction increases with lower durometer. Durability increases with higher durometer.) Note: UDP-Series surface available for standard size pads on all G-Series and F-Series (25F to 120F). Available as a bolt-on pad on all clamp models and all pad sizes. UDP-Series Smooth Surface* * Smooth Surface urethane available on non-standard pad sizes. UDP-Series urethane surface shown edge guard rounded edges radiused corners 6

9 IRATHANE COATED Kraft and polywrapped paper rolls, linerboard-coated, white printing. A dense, 90 durometer pad coating that is very durable and non-marking. Allows paper to be clamped with lower clamp force than metal pads. Irathane is applied with an average 4 mm thickness to maintain the thin pad profile. Improves pad friction to reduce required clamp force. Irathane is available on standard and optional pad sizes. Irathane coating rounded edges Irathane coating radiused corners 7

10 BOLT-ON RUBBER & URETHANE Milk carton and waxed stock, slick coated/magazine paper LWC, kraft linerboard, kraft medium, preprint, newsprint, supercalendered SC, carbonless, plastic/polywrapped, lithographic/fine, white printing or any paper requiring increased friction to reduce necessary clamp force. Rubber is bonded to a durable steel backing plate. Bolt-on pads are easy to replace. Rubber and Urethane available in various durometers. Black rubber is standard and is recommended because it is more durable than white rubber. White rubber is available as an option. Standard durometer is 65. Rubber and Urethane pads provide increased friction to allow decreased clamp force. Friction generally increases as durometer decreases. Durability increases as durometer increases. Rubber and Urethane pads are resilient and able to conform to different radiuses. Resilience increases as durometer decreases. Options: Available with fiberglass inlay for concrete pipe handling. chamfered edge bolt on, field replaceable pads (Black rubber shown) Black rubber, UDP and white rubber available edge guard rounded edges radiused corners 8

11 HINGED Designed primarily for newsprint and printing papers. Hinged pad that conforms to various roll diameters. Pad design accommodates applications where roll diameters vary from load to load. Reduces pressure points on paper. Reduces required clamp force to help prevent out-of-roundness Pads are easy to replace. Available with standard black bolt-on rubber or optional white as well as with UPD urethane. (Black rubber is more durable than white rubber.) Limited to sliding arm clamps. white bolt-on rubber shown chamfered edge spring hinge Black rubber, UDP and white rubber available Hinged Pad with bolt-on surface protective edge 9

12 FLEXIPAD Designed primarily for newsprint industry. Provides full pad contact on various diameter rolls by wrapping around the roll. Diamond pattern rubber with replaceable flexi band. Spring style backing on rubber conforms to roll diameter. diamond-ribbed rubber surface Can be used on newsprint clamps up to 6,000 lbs. (3,000 kg.) capacity. Conforms to different sized rolls from 32" to 51" (800 mm mm) diameter. Wrap-around rubber surface improves friction by conforming exactly to the roll diameter. Provides very low roll surface pressure. plate with flexible backing Flexipad surface pad pivot 10

13 DENSITY BASED TISSUE PAD SELECTION Tissue paper can be divided into three categories, each of which should use a different style pad. Choosing the correct tissue pad type can be simplified by using a technique based on the density of the paper roll. The density based solution is based on how the tissue interacts with the pad as shown in the graphic to the right. Note the tissue flowing around the pad in the case of the convex pad and soft tissue. Conversely, the dense tissue holds its shape and is best handled with a pad of similar radius to the roll. The following pages outline Cascade's three tissue pad offerings. Single Radius for use on high density tissue, such as service toweling Double Diameter for use on medium density tissue, such as toweling Tissue Type Typical Paper Types Recommended Pad High Density Service toweling-hard surface Single Radius Medium Density toweling, facial, toilet Double Diameter Low Density Ultra Soft Tissue soft toilet, facial (TAD paper) Convex Convex for use on low density tissue, such as ultra soft tissue (TAD paper) 11

14 TISSUE, SINGLE RADIUS Dense tissue such as industrial toweling. Cascade Cast surface provides excellent friction surface. Large corner radius prevents cutting of tissue. Large surface area to minimize roll deformation. Round bar around perimeter prevents tearing. Pad size is generally smaller than convex but larger than standard pads. As a general rule, pad length should be 70% of roll height. Not recommended for medium or soft tissues. Can be used in applications where narrow width rolls are handled. concave surface to match maximum roll diameter Cascade Cast surface Note: Choosing the correct tissue pad depends on the density of the tissue roll. Consult Cascade for this analysis when choosing a tissue pad. round bar prevents tearing Cascade Cast surface large radiused corners 12

15 TISSUE, DOUBLE DIAMETER Medium density tissue such as common facial and toweling grades. Cascade Cast surface provides excellent surface friction. Available with or without flared end. Flared end recommended to reduce cutting of tissue at pad ends. Round bar around perimeter prevents tearing. concave surface formed at twice the maximum roll diameter Optional flared ends Pad length and width greater than standard pad. As a general rule, pad length should be 70% of roll height. Flared end not recommended for narrow rolls less than 20" wide. Note: Choosing the correct tissue pad depends on the density of the tissue roll. Consult Cascade for this analysis when choosing a tissue pad. Cascade Cast surface round bar prevents tearing Cascade Cast surface hardened wear surface large radiused corners full length wear surface 13

16 TISSUE, CONVEX Low-density, soft tissue such as facial, toilet tissue and soft toweling. Convex surface with round bar perimeter provides a smooth transition during roll deflection to prevent tearing. Flared ends prevent cutting of tissue. Available without flared ends to allow handling of narrow rolls. Hardened wear surface prevents pad wear caused by floor contact. convex surface gradually flattens and flares at end Relatively large pad to distribute clamping force over larger area of roll. As a general rule, the length of the pad should be equal to 70% of the height of a full parent roll. The width should be proportional to paper's softness. Flared end is not suggested for narrow rolls (less than 25" wide). Use standard convex tissue pad without end flare for narrow rolls. Do not use convex pad on hard stock. Contact pad surface is coated with spray metal. Note: Choosing the correct tissue pad depends on the density of the tissue roll. Consult Cascade for this analysis when choosing a tissue pad. round bar transition convex design prevents tearing Spray Metal surface hardened wear surface on ends end view 14

17 P.O. Box Portland, OR CASCADE ( ) FAX Timberlea Blvd. Mississauga, Ontario L4W 4M FAX Cascade is a registered trademark of Cascade Corporation. Cascade Corporation All rights reserved. Form R1 5M PP 8/04