Allied Equipment & Retrofits

Features: Automatic Skid Feed and Offload, Eliminates Extending grid

Benefits: Eliminates downtime between skid changes, No sheets lost during skid change.

MAXSON Sheeters can be outfitted with a rapid pallet discharge system. This feature, which requires no Operator involvement, permits uninterrupted production while changing skids of material safely without rejecting any acceptable sheets. When the specified batch count is reached, the cutter ramps down to a reduced speed. At the same time, the high and low speed tape sections accelerate clearing sheets from the delivery system.

When the last sheet assigned to the pile enters the stacker, the load table automatically lowers to the off load position. Simultaneously, the slow speed tape section adjusts to a creep rate, resulting in heavily overlapped sheets. These sheets move slowly toward the stacker, providing time for the full skid(s) to be lowered and removed. The rapid pallet discharge system includes a motorized link belt conveyor on the load table, a motorized infeed link belt conveyor and a motorized out feed link belt conveyor as well as safety light curtains and Operator controls for manual override. All three conveyors are positioned in a pit to make the top of the discharge system flush with the floor.

When the stacker table reaches the lower limit switch, the stacker and out feed link belt conveyors shuttle the full pallets off line, perpendicular to the web travel of the sheeter. At the same time, the infeed link belt conveyor transfers empty skids onto the stacker link belt conveyor. Once the new pallets are in position the load table raises to the stacker’s top limit switch. The sheeter automatically returns to its previous operating speed and overlap setting. No sheets are lost during the skid change.

Features: Engineered system – AC Motors, Touch screen HMI, Electronic drives.

Benefits: Press ready accuracies, Fast sheet length changes.

This dead knife sheeter retrofit package replaces a cutter’s existing wear-prone mechanical transmission or obsolete electronics with a reliable electrical system. This drive system allows cutoff lengths to be set in seconds, assures accuracy levels, and reduces maintenance levels of drive components. The sheeter’s electrical system is comprised of drives and programmable controller in a UL approved electrical enclosure, motors and Operator interfaces. With a Customer supplied Internet connection, the electrical system. Troubleshooting, programming down loads and other diagnostic actions can be accomplished from a distance. Typically the upgrade can be installed in less than 40 hours. 

Within MAXSON’s retrofit package, two AC vector drives are used. Each drive package governs an AC servo motor. The first motor is coupled to the draw drum, the second drives the knife revolver. Utilizing a microprocessor to govern two AC drives, sheet length accuracy is consistently maintained regardless of cut off or change in line speed. A programmable logic controller can also be included to replace or enhance existing sheeter circuitry.

The retrofit kit includes a human machine interface (HMI) that allows the Operator to input the cut off at a finger touch. Sheet length and line speed can be toggled between imperial and metric units. Counting screens monitor total sheet count and can be configured to accommodate number of webs being sheeted as well as the number of piles being produced. A “Knife Maintenance Count” monitors the ongoing number of knife cuts, to be used as a preventative maintenance tool to schedule blade changes.

Features: Self loading design, Automatic tension control, Low roll detection, roll tracks and trolleys included.

Benefits: Roll change without overhead hoist, Automatic tension allows for minimal operator intervention, allows one roll to be loaded and readied while the other is in use, automatic machine stop at roll core, Ergonomically designed Roll Tracks.

The Dual Position Shaftless Roll Stand includes two unwind positions. Each position is outfitted with an operator control station, a manual side loading roll trolley with track, automatic tension control, “low roll diameter” detection , pneumatic disc brake, independently governed arms that load and raise a roll into position a pair of tapered chucks.

The chucks mount onto over sized stub shafts housed in machined arms. Hydraulic cylinders raise, lower, and clamp the arms. The unwinds can handle roll diameters between 18′′ (508 mm) and 84′′ (1828 mm) and up to 7,000 pounds (3181 kilograms). using the rugged, heavy duty trolley, the Operator simply positions the roll between the stand’s arms, lowers the arms to the roll core and then drives the tapered chucks on each arm into the roll. The process of removing an expired core and loading a new roll to be run can be accomplished within 3 – 4 minutes. In the meantime, the second unwind position in use.

The tension control system on each roll stand lessens brake pressure automatically as the roll circumference reduces. The “low roll diameter” detector design aids an Operator by automatically slowing the sheeter to a stop when a preset roll diameter is reached at the roll stand. This feature allows the Operator to monitor other aspects of the sheeting process, yet still allows the line to stop before a roll completely expires.

Features: Engineered Solution, compact design, Dual Rotary technology, self-contained system.

Benefits: Allows heavier knife loading while improving cut quality, minimal downtime during installation.

This retrofit package upgrades existing stationary bed knife cutters with state of the art twin knife rotary cutting technology. The compact design allows for straightforward replacement of the older cutter with minimal interruption of ongoing production. The retrofit package can be fit to any rotary sheeter.

The two cross cutting revolvers increase production by allowing the maximum knife loading available. The unique blade adjustment clamps allow fine tuning of the cross cut blades and extends knife life to four times that of conventional cutters. The solid, low inertia cyclinders combines rugged construction with a high performance speed curve.

The dual knife design mounts both top and bottom blades in rotating cylinders coupled together with anti backlash gearing. The synchronized speeds of the blades to the web result in the cleanest, quietest, dust free cross cutting action available. Outfitted with digital blades match the speed of the web at time of cut, no adjustment for squareness is required.

Features: Engineered Solution, allows the pile to be offset from the sedge of the skid.

Benefits: No need for realigning piles of material on a pallet, removes need for any process prior to the material entering the press feeder.

The feature allows the Operator to offset the tail end of the sheeted stock from the back edge of the standard sized skids. As a result, there is no need for the intermediate step of aerating and jogging the piles prior to loading into the printing press feeder.

The vibrating back jogger system mounts at the end of the delivery system and protrudes out over the stacker’s load table. By positioning the standardized pallet against the stacker’s backstop, up to 6′′(150 mm) offset of the pile, relative to the skid can be achieved.

In this design, compressed air is introduced at the end of the delivery system to help float the initial sheets so the leading edge does not get caught in the slots of the standard sized pallets. Pivoting pucks within the back jogger turn down to the skids, insuring the bottom sheets of the pile do not drift out of position because of the variation in pallet height.

Features: Economical, Automatic or Manual Tension control, chucks or airshaft capable

Benefits: Hi-Lo Configuration for space saving on multiple web applications, Low cost.

Converters that sheet multiple webs of material and require economical roll handling arrangements are candidates for the MAXSON Shaft Type Roll Stands. Available in single post or space saving vertical post arrangements, the units can accommodate rolls up to 5000 pounds (2280 kg) and 60′′ (1524 mm) diameters.

Outfitted with either tubular steel shafts and chucks or air shafts, the unwind allows up to 6′′ (152 mm) side lay adjustment and up to 6′′ (152 mm) skew adjustment to address baggy edged rolls. The roll stand is equipped with a pneumatic disc brake that uses a quick disconnect design that couples to the shaft.

As an option, the braking system can be outfitted with a tension control system that automatically lessens brake pressure as the roll diameter is reduced. For manufacturers of premium products such as film, foils and laminated materials a shafted roll stand can be fitted with edge guidance. A sensor mounted at the cutter infeed monitors the web’s edge as the material feeds into the sheeter. The roll stand’s edge guidance system automatically compensates to assure proper placement of the web through the cutter and into the stacker. This feature eliminates the need to take an edge trim when slitting telescoped rolls.

Features: Engineered Solution, Designed with finished product in mind, web steering, skew adjustment, Dancer rolls included as necessary.

Benefits: Specific material attributes and applications satisfied.

The decurl assemblies can be designed to accommodate single webs and multiple webs, ranging up to 0.060” thick ( 1000 gsm) material. Each decurl station can be outfitted with various diameter breaker rolls that can flatten the web without damaging the surface of the material. Positioning the decurl penetration can be accomplished manually or automatically by motorized controls. The freestanding assemblies are designed to easily fit between the infeed of the sheeter and the roll stand area to minimize installation effort. Properly designed decurl units can reduce roll waste by up to 2% of total weight.

A pneumatically actuated tag inserter is used to count and mark the number of sheets in a pile.

Features: Sensor actuated tag inserting, compact design, pneumatic feed of tag stock

Benefits: Replaces expensive hand counting, allows the unit to be placed in constricted areas, reliable tag insertion into pile

Compressed air passes through an adjustable flow control valve and actuating an air cylinder, feeds out 6″ (150 mm) of tag stock. When the solenoid is de-energized, (after a dwell time that allows a few sheets to gather on top of the tag), the cylinder which fed the stock out, retracts, cutting the tag off.

The MAXSON Tag Inserter is the top-end solution for highly accurate online counting and batching of sheet delivered products such as sheet paper, commercial print and packaging.  Mounted at the delivery end of almost any sheeter or printing press.

The tag inserter can be easily mounted on rotary sheeters, printing presses and the like. Because of the compact design, the units can be placed in tight quarters in various positions. The narrow snout of the tag inserter permits access in difficult to reach applications. Thousands are in operation, installed because of the tag inserter’s outstanding reliability and jam free operation.

Using a counter/multiplier, at a preset count a solenoid is activated that initiates the tag insertion, insuring an accurate count within the skid. The tag stock is a standard weight, 3/4″ (15 mm) wide, maintained in stock. Cartons of 20 rolls are available for quick shipment.