SLITTING TIME

Augment slitting/rewinding operations with these recent technology releases.

Automated edge trim unit

Tidland Corp.

(800) 426-1000; Fax: (360) 834-5865

Tidland's Automated Edge Trim system allows exact repositioning of knives, simultaneously and bi-directionally, using touch screen controls. Changes to the knife position are made away from the slitting process and require no operator contact with the slitting equipment, increasing safety. Operators do not have to stop the press to reposition knives, avoiding costly re-starts and wasted materials. Absolute repositioning of knives in exact increments increases accuracy, and changes as little as 1⁄8˝ to 1⁄16˝ can be made in ratio to the movement of the web. The robust design of this new product ensures reliability in tough mill environments.

Reversible taper tension Doctor Machine®

Stanford Products LLC

(618) 548-2600; Fax (618) 548-6782

Stanford Products LLC has released a new reversible Doctor Machine. The 152 LT has a tension control feature that can provide high tension or low tension, with ranges from 1⁄8 to 1 1⁄2 pli, suiting it for a wide range of materials including light films, film laminates, non-wovens, and light papers. Two 10 hp motors are utilized in an AC vector drive system that allows operation to 1,500 fpm. The standard model accommodates web widths and roll diameters to 30˝, while supporting up to 500 lbs. of roll weight. A new PLC and touch screen control panel ease operation.

Rewinder integrates 100% inspection

Rotoflex International, Inc.

(905) 670-8700; Fax: (905) 670-3402

The Rotoflex line of high-speed inspection, slitting, and rewinding machines integrates vision technology. One hundred percent vision solutions capability is available for a wide variety of label and converting applications, to meet the ever-increasing demand for quality and precision. Rotoflex's combination of VSI, VLI, and security level machines; integrated computer and digital features and technology; quality diecutting machinery; and, four levels of vision technology can service the widest possible range of industries and applications.

Freestanding shear/score slitter

CTC Int'l

(973) 228-2300; Fax: (973) 228-7076

CTC Int'l's freestanding unwind slitter is now available for use with its line of turret rewinders, allowing for easy running of CTC turrets in off-line mode. The unwind slitter features a 42˝ diameter unwind roll capacity, precision tension control, low roll warning system, automatic web guiding, splicing table, and precision slitter. The slitter is available as a shear or score unit, and offers a quick-change option which allows it to be used as both. Offered in web widths up to 20˝, the unit can be optionally supplied with an integral roll lifting system, end-of-roll marking system, casters, and CE compliance.

Machinery options for enhanced operation

Converting Machinery Technologies

(973) 808-8890; Fax: (973) 808-8973

Slitter/rewinders from Converting Machinery Technologies feature "spacerless" rewind mandrels which aid in changeover downtime and during normal operation. Offloading carts and cantilevered mandrels are also offered. For knife changes, an automatic positioning option is capable of repositioning 30 knife sets (score, razor, or rotary shear) in less than 90 seconds. Positioning tolerance is within .003˝. Other standard devices which enhance operation are microprocessor-based controls, touchscreen operator interfaces, roll lifting arms, and shaftless unwind systems.

Narrow-web slitter/rewinder enhancements

Ashe Converting Inc.

(413) 623-0090; Fax: (413) 623-5117

Opal label inspection slitter/ rewinders from Ashe Converting can accommodate all types of self-adhesive materials. The Opal has a maximum web speed of 220 m (722´)/min and is available as standard in 330mm (13˝) and 410mm (16˝) web widths. Opal slitter rewinders are PLC-controlled and are equipped with end-of-roll automatic slow down facility, electronic web edge guide system, three-knife scissor section, 1500mm (60˝) inspection area complete with splice table and clamps, and electronic tension control. A separate drive motor on the rewind drive provides for over-wind and under-wind operation with accurate rewind tension. Options include label detection facilities, stroboscope, reel lift system, web advance system, flag/ splice detector, waste rewinder, and edge trim extraction.

Narrow slit, large rewind diameter

Matik North America

(860) 232-2323; Fax: (860) 233-0162

The topslit combines the slitting/rewinding philosophy of the Goebel rapid d series and a proven load cell technology to rewind large diameter rolls with optimal structure. A unique unsupported simplex center drive system allows for a wide range of winding conditions. The special slitting arrangement provides excellent narrow slits and roll separation at high speeds. The topslit can be supplied with a cantilevered rewind shaft and integrated finished roll unloading cart for shaftless operations, simple roll handling and faster set change. It also features a slicing table, various slitting systems, an AC drive and a digital control system with PLC. Available with rewind diameter to 50˝.

Modular narrow-web slitter/rewinder series

Conweb

(973) 808-9787; Fax: (973) 808-9052

Conweb's Econoline Series of narrow-web slitting/rewinding machines is designed to handle a wide range of materials up to 30˝ wide and up to 28˝ diameters at speeds to 1,000 fpm. Available features include shear, razor, or score slitting, differential or lock core winding, rewind tension and taper control systems, gravity or programmed pneumatic lay-on rolls, single or multi-motor AC drives, and PLC-based control systems. The Econoline's modular design allows a customer to configure a machine to satisfy performance requirements and budget.

Versatile single blade slitter

Pinnacle Converting Equipment

(800) 728-3821; Fax: (704) 376-2207

The LOG HOG is a versatile Single Blade Slitter designed for economically cutting rolls of vinyls, PSAs, foam, spun adhesives, and non-wovens to any width. Models will allow a 12˝ or 20˝ diameter, 62˝- or 74˝-wide roll of material to be productively and accurately slit without heat build-up. A center shaft design, drive system, and patented scalloped straight blade mount provide the power to allow slitting even up to the final 1˝ on the roll. A beveled round blade can be mounted in place of the straight blade. An option also allows a driven beveled or toothed blade.

Slitter/rewinder provides "photo" finish

Dusenbery Worldwide

(973) 366-7500; Fax: (973) 366-7453

Dusenbery Worldwide has developed a center wind slitter/rewinder for the photographic paper industry. Model 839 features automatic tail cut-off and feed for use in a darkroom environment. The automatic feed extends the tails to the required length so that material can be cinched to the cores without material waste. An overhead web path, splice detection and automatic feed are among some of the features.

Narrow-web slitter/rewinder lines

Aztech Machinery

(800) 829-8351; Fax (480) 998-5409

Aztech Machinery builds two complete lines of slitter/rewinders in widths from 10˝ (256 mm) up to 18˝ (462 mm). Dual and single rewind. 40˝ unwind is a standard feature. Running speed is 1,000 fpm. A slitter/rewinder is also available on the three station die cutter. Durability and ease of use are built into each product.

Machinery for a wide range of materials

Elite Cameron

(732) 627-0400; Fax (732) 627-0111

Elite Cameron's slitter/rewinders for paper, film, foil, and textile converting, offer shafted and shaftless unwind stands for a variety of materials, short length rewinders, salvage and doctor rewinders, coating and laminating machines, and automatic and manual core cutters. The range of slitter/rewinders feature web widths up to 200˝, roll diameters up to 80˝, and speeds up to 6,000 fpm. All machines are able to incorporate Elite Cameron's automatic knife setting systems, automated roll loading and unloading, and its patented differential rewind shaft system.