Central Pneumatic 40072 Specifications download pdf (Page 61)

PAGE 59

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Plates, Clichés and Supplies

Introduction To Plates

The plate (called a cliché after it’s etched) is the vehicle that holds the inked image

that will be transferred by the pad onto the part.

Available plates are:

u Polymer -- alcohol or water wash

u Thin Steel -- .020" thick

u Thick Steel -- .25" thick

Polymer plates consist of a steel backing layer, a layer of UV sensitive nylon,

and a removable protective coating. When selecting polymer plate material, cost

and number of impressions are determining factors. Polymer plates come in differ-

ent hardness and are rated for jobs that run as few as 10,000 impressions

to projects that extend for 70,000 impressions, or more.

Thin steel plates are bright polish carbon steel, with a Rockwell hardness of

48-52, and a atness of 0.2%. They are for runs up to 500,000 impressions with

a closed cup system, and less than 100,000 with an open well system, and are

available in various sizes up to 7.874" wide, both in etched and unetched plates.

Thick steel plates are A2 steel with a Rockwell hardness of 61-62. Thick steel

plates are generally not sold as stock, but as etched only, and are most appropri-

ate for long-run jobs. Thick steel plates are rated to last for 1 million impressions.

Thick steel plates are custom in all aspects, including size, thickness and number

of etches.

For additional information about choosing the proper plate for your application, go

to our website at www.padprintmachinery.com, the customer tab, under support

center for the article “Selecting the Correct Cliché for your Pad Printing Job.”

Important: The plate life may vary depending on the type of ink you use or the

presence of dirt and debris that contaminate the plate surface.

Information Needed When Ordering a Plate

Our customer service representative will ask you several questions:

u What plate material are you ordering?

u What size (width by length) do you need?

u How many plates do you want to order?

u Do you want us to punch holes in the plates for you?

u Do you want us to etch the plates for you?

u If you etch your own plates, do you need any more supplies?

(See page 63 for plate making accessories)

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Central Pneumatic 40072 Specifications Page 61