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Shaft Support Systems

New SimpLok™ Unwind and Rewind Modules

Converter Accessory Corporation (CAC) introduces its new line of unwind and rewind modules. SimpLok™ unwind and rewind modules are the perfect answer where converters want to increase capacity, improve web control, ease roll changes for increased production or for adding unwind or rewind stations to an existing converting machine.

SimpLok shaft holders and unwind / rewind modules are available in standard, medium and heavy duty. They handle rolls from 50 – 5,000 pounds. Unwind and rewind shafts are captured with ball bearings to ensure optimum tension control.

SimpLok modules are available with brake or drive mounting provisions. Lateral adjust with up to +/- 2” of adjustment, skew adjust with up to +/-.5” of adjustment, skew and lateral adjust and edge guide models are available.

All SimpLok systems may be designed with CAC components, such as COR-LOK® air shafts and CAC air operated tension brakes for complete engineered solutions or they may be designed to incorporate other manufacturers’ components. CAC designs these systems to fit customers’ requirements.

According to Jeff Damour, CAC Engineering Manager, SimpLok offers converters an extremely cost effective answer to increasing productivity and product quality. SimpLok unwind and rewind modules provide fast return on investment by improving roll handling and solving many web handling problems.


New Pinch Point Free Shaft Locking System

Introducing Shaft-Lok® a new safely operated shaft holder system for unwind and rewind rolls. Unlike conventional safety chucks, Shaft-Lok® has no pinch points.

According to Jeff Damour, CAC Engineering Manager, the pinch point free design offers a level of worker safety unequalled by any other shaft locking system.

Shaft-Lok® opens only in the up position and allows a safe, easy unload operation. Shaft-Lok® is available in several models able to handle loads and weights up to 5,000 lbs. and operate flawlessly at low to high speeds. All models automatically lock to hold rotating shafts and feature all steel, extra heavy-duty construction, including heavy duty ball bearings.

Shaft-Lok® features replaceable cradles and inserts which are available for square, diamond, triangle, 1/2 round and custom shaped shafts and shaft ends. The system is available in foot or flange mount designs. Skew and lateral adjustment assemblies are also available.

"Our ability to custom engineer most of our products, including Shaft-Lok® allows us to offer the exceptionally safe and reliable system for virtually any unwind or rewind system. We can combine a standard Shaft-Lok® with CAC brakes for a total unwind solution, or offer custom designs to match any brake, clutch or drive a customer selects," Damour said.

CAC offers rapid deliveries for standard units. According to Damour, Shaft-Lok® systems are competitively priced.

Founded in 1974, Converter Accessory Corporation designs, engineers and manufactures web handling equipment for converters of paper, film, foil, nonwovens and textiles. Engineered solutions include high quality, cost effective equipment from the simplest aluminum core cone to the most sophisticated unwind/rewind system. CAC is represented by knowledgeable sales engineers and provides extensive consultation and post sales support.


New Rugged Design Upgrades Pinch Point Free Shaft Locking System

Wind Gap, Pennsylvania: Converter Accessory Corporation (CAC), Wind Gap, Pennsylvania, is introducing an upgraded, more rugged, more durable. ShaftLock™ safe operation shaft holder for unwind and rewind rolls. The improved system does not compromise any of the features that made the first generation ShaftLock™ systems so successful.

Unlike conventional safety chucks, ShaftLock™ is a safety chuck with no pinch points. According to Jeffrey Damour, CAC Engineering Manager, the pinch point free design offers a level of worker safety unequalled by any other shaft locking systems.

ShaftLock™ opens only in the up position and allows a safe, easy unload operation. ShaftLock™ is available in several models able to handle loads and roll weights up to 5,000 lbs and operate flawlessly at low to high speeds. All models automatically lock to hold rotating shafts and feature all steel, extra heavy-duty construction, including heavy-duty ball bearings.

ShaftLock™ features replaceable cradles and inserts which are available for square, diamond, triangle, 1/2 round and custom shaped shafts and shaft ends. The system is available in foot or flange mount designs. Skew and lateral adjustment assemblies are also available.

”ShaftLock has been very successful in the market. After a close look at performance we decided customers could benefit from a heavier duty model. Our ability to custom engineer most of our products, including ShaftLock, allows us to quickly respond to customers’ requests. ShaftLock is an exceptionally safe and reliable system for virtually any unwind or rewind system. We can combine a standard ShaftLock with CAC brakes for a total unwind solution, or offer custom designs to match any brake, clutch or drive a customer selects,“ Damour said.

CAC offers rapid deliveries for standard units. According to Damour, Shaft Lock® systems are competitively priced.


New Bulldog Tough, Safely Operated Shaft Locking System for Unwind and Rewind Stations

Converter Accessory Corporation (CAC), is introducing a new ”Bulldog” medium weight, low profile Shaft-Lok®, a safely operated shaft holder system for unwind and rewind rolls. Unlike conventional safety chucks, Shaft-Lok® has no pinch points.

According to Jeffrey Damour, CAC Engineering Manager, the pinch point free design offers a level of worker safety unequalled by any other shaft locking systems.

The new mid weight Bulldog Shaft-Lok® series is designed for loads to 3000 pounds and 1 1/2 inch shafts. It joins the light weight system for loads to 1000 pounds, 1 1/4 inch shafts and the heavy duty series for loads to 10,000 pounds and 2 inch shafts.

In all sizes, the CAC Shaft-Lok® opens only in the up position and allows a safe, easy unload operation. All models automatically lock to hold rotating shafts and feature all steel, extra heavy-duty construction, including heavy-duty ball bearings.

All Shaft-Loks® feature replaceable cradles and inserts which are available for square, diamond, triangle, 1/2 round and custom shaped shafts and shaft ends. The system is available in foot or flange mount designs. Skew and lateral adjustment assemblies are also available.

”The new Bulldog system gives customers so many off the shelf options that in practice the benefits match custom designs. The exceptionally safe and reliable Shaft-Lok® system is available for virtually any unwind or rewind system. We can also combine a standard Shaft-Lok® with CAC brakes for a total unwind solution, or offer custom designs to match any brake, clutch or drive a customer selects,“ Damour said.

CAC offers rapid deliveries for Shaft-Lok® units at competitive prices.


New Features for ShaftLok® Safety Chucks

Converter Accessory Corporation is introducing new optional features available with its’ popular ShaftLok® safety chuck system.

ShaftLok® safety chucks are now available with a newly designed, spring loaded, hand operated sliding mechanism which ensures the shaft capture plate cannot open without the machine operator physically operating the slider first. Another optional feature is a mounted proximity sensor that will detect whether the capture plate is open or closed.

"Our customers requested these two additional features, so we decided to design them and offer them as optional features within our standard safety chuck system," Jeff Damour, Engineering Manager said.

ShaftLok® safety chucks are an exceptionally rugged method of holding the journals of unwind and rewind shafts. They include shaft capture plates that open only in the up position. They feature replaceable shaft cradle inserts available in square, triangle, diamond and round shaft configurations. Models are available in standard duty, medium duty and heavy duty.

Axially sliding shaft capture plates ensure pinch point free operation.


Get the Most from Your Safety Chucks

Safety chucks, like CAC's ShaftLok safety chucks, are a safe, effective method for holding unwind and rewind shafts for center winding of material rolls. Safety chucks include a shaft cradle which holds the unwind or rewind shaft and a capture plate which locks the unwind or rewind shaft in place. Internal bearings allow shaft cradle and capture plate to rotate for unwinding or rewinding material rolls. Things to consider to get the most from your safety chucks:

  • Consider roll weights and all your operating specifications to make sure your safety chucks are properly sized per the manufacturers specification to accommodate your material roll weight and related specs.

Consider Your Operating Specs

 

  • Safety chucks are available capture plates that "flip" closed or by sliding axially. Consider which design is best for your operation. Keep in mind safety and pinch points.

 

Axially Sliding Capture Plate

 

  • Close the shaft capture plate, manually, for longer safety chuck life and less necessary maintenance. Capture plates close automatically if they are not closed, by hand, by the machine operator prior to starting the winding operation. This is a safety feature of the safety chuck. Do not use this feature as a normal running condition.

Closing the Capture Plate

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Alignment of Safety Chucks is Critical to Proper Operation

 

  • Designs to hold square shaft ends are the most common. However, diamond, triangle and even round can offer improved performance for some applications.

Various Shaft Designs

 

 

ShaftLok Safety Chuck Insert

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  • Most safety chucks include replaceable inserts. These inserts are not hardened and are designed to be replaced. Make sure your air shaft or thru shaft journals are hardened in the area supported by the safety chuck.
     
  • Your thru shaft or air shaft journals will deflect while supporting material roll weight. Excessive shaft or journal deflection without accommodating the resultant geometry will cause excessive maintenance or safety chuck failure. Follow the safety chuck manufacturers recommendation for shaft and journal end manufacture.

Safety chucks, designed properly for your application, will provide safe, reliable and long-life operation.

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Written By: Jeff Damour

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