Score Slitter or Crush Cut Blades


Carolina Knife Co. manufactures blades and a wide range of accessories for machines utilizing the score or crush cutting process. Score cut knives, perforator blades, slitter shafts, through hardened rolls or sleeves, and slitter knife holders are the most common score slitting products that we manufacture. All are available for standard score slitting machinery, and we also deliver rapid manufacturing of custom blades and accessories for businesses with unique score cutting needs. We manufacture both continues edge and perforated score cut slitters in a wide range of industrial knife materials.

Order a Score Slitter Today

Score or Crush slitters are often referred to as top slitter blades as they are used in conjunction with a roll or sleeve. For more information on our complete line of circular top slitters click here. Please give us a call today or click the quote link below to place an order with our experienced sales staff.

Request a Free Score Knife Quote.

Score Cut Knife Related Diagrams


Arbor Assembly Roller, Anvil Idler Shaft Drawing
Arbor Assembly - Carolina Knife Score Slitters Roller, Anvil Idler  - Carolina Knife Score Slitter Blades Shaft Drawing - Carolina Knife Score Slitters
Score Crush Cutting Sleeve American and European Style Hose Assemblies Score Knife Pricing List
Score or Crush Cutting Sleeve - Carolina Knife Score Slitter Blades Hose Assemblies - Carolina Knife Score Slitters Score Cut Blade Pricing List - Carolina Knife
Cross Reference Chart Cutting Edge Selections Score Cutter Drawings
Cross Reference Chart - Carolina Knife Score Slitter Blades Cutting Edge Selection - Carolina Knife Score Slitters Score Cutter Knife Drawings - Carolina Knife Score Slitter Blades

Score or Crush Slitting Explained

Score slitter blades, also called crush cut blades, are used in a cutting process that involves passing a material between a blade and a hardened roll, also called a sleeve. The material is essentially crushed into two separate pieces between the knife and the roll. Because of the constant metal on metal contact between the score cut blade and the roll, these blades don’t have a razor sharp edge, but instead have a rounded edge with a larger radius. This insures longer run times, as sharper blades would dull quickly creating an uneven cut. A score cut knife is used for continuous cutting applications, but is also ideal for perforating a material such as paper. Carolina Knife Co. manufactures all blades and accessories used in the score cutting process including a full line of perforator blades.

Score Slitter Shafts, Hardened Rolls, and Accessories

Slitter Blade Shaft

Along with manufacturing the blades, we also manufacture or supply shafts, through hardened rolls, score knife holders and accessories such as cylinder housings, piston cups, piston forks, springs, stop blocks, axels, screws, spring pins, clamp pawls, spacers, and tubes. Please visit our Knife Accessories page for more information. We also have a page dedicated to building a complete slitter machine, click here for more.

Why Through Hardened Sleeves

Through Hardened Sleeve

Most people only consider the quality of the blades when purchasing industrial slitting equipment. At Carolina Knife Co. we take pride in crafting high quality parts. For this reason we insist on through hardening all of our sleeves and rolls used for score slitting. Inevitably your hardened roll will get worn down and develop grooves along the cutting surface. It is more cost effective to have these worn rolls resurfaced rather than completely replaced. Rolls hardened using standard hardening processes have a relatively thin layer of hard steel on the outside and once reground several times they will be useless as the softer steel becomes exposed. With through-hardened sleeves you will be able to regrind them significantly more times before they need to be replaced. Click here for more on our through hardened rolls and shafts.

Blade Sharpening and Roll Regrinding

Industrial Blade Sharpening

Along with blade and accessory manufacturing we also specialize in sharpening of score cut blades and regrinding or resurfacing of hardened rolls. Visit our blade sharpening page for more information.

Carolina Knife - Score Slitter or Crush Cut Industrial Blades