Circular knives are durable and resistant components designed for cutting materials into narrower strips. They are crucial for applications like paper and metal processing. These machine knives are ideal for high-volume cutting, scoring and slicing tasks, allowing for continuous incisions with precision.
Intertech Precision is your premier manufacturer of automated slitting solutions, knife holders, shafts, knives and other crucial components. We are a woman-owned business with over 70 years of experience providing tailored solutions to clients across industries. Our high-performance circular cutting blades provide long-lasting quality and efficiency to your operations.
Also called circular slitter blades, these tools are used in various industries to make narrow cuts on material rolls. These disc-shaped knives are designed to operate against a fixed anvil or another blade rotating in a slitting machine.
Circular knife blades cut a wide range of materials, from thin sheets to heavy-gauge metal. They are manufactured with different tooth configurations to achieve specific cutting effects and materials. Their edges can be straight, wavy or scalloped.
Round blade knives come in various types according to their application or cut type, including:
Intertech Precision offers a complete selection of circular slitter knives to meet your application needs. Some of the circular knives we carry include:
Edge cleanliness and dimensional accuracy define cut and edge quality in shear cutting. A superior cut edge is smooth, square and free of burrs, ragged fiber or micro-tears, the kind of defects that affect downstream processing and final product integrity.
Edge quality deteriorates when knives lack the hardness to maintain a true cutting geometry, when tolerances are loose or when materials flex rather than shear cleanly.
The gap between blades must be precisely controlled, and the cutting angle must remain consistent across the full width of the material to prevent stress, distortion and scrap.
Precision shear cutting applies a controlled, opposing shear force along a defined cutting line. When executed correctly, the material separates with minimal lateral displacement, producing a burr-free cutting edge and negligible distortion to the surrounding substrate.
Precision shear cutting suits sensitive materials such as foil, nonwoven, film and label stock, where slight edge irregularities can affect layering, adhesion or print registration. The knife edge geometry, steel grade and heat treatment all determine whether a cut is clean or compromised.
We are committed to meeting your industrial slitting and converting needs. With decades of expertise and products built to the highest German standards, our precision production and highest tolerance control ensure that slit width quality and accuracy meet the demands of your cutting application.
We have embraced new technologies for edge-trim systems, core slitting, narrow width slitting, computerized self-positioning slitting modules and razor slitting, demonstrating our dedication to continuously innovate.
Our worldwide customer base includes more than 200,000 razor, score and shear blade knife holders and a distributor and OEM network serving North America, Europe, Asia and Latin America. We leverage high-quality materials and finishes to provide optimal performance in our cutting solutions.
The resources below provide more information about our slitting systems.
Our shear slitting systems achieve clean cuts through the correct combination of knife overlap, side pressure and machine alignment. Our male and female knife assemblies are adjusted to suit your substrate, whether tissue, film, nonwoven or heavy board, and to produce accurate slit edges at production speeds.
Our circular shear cut system components include top knife holders in key locking, eccentric self-locking and set screw configurations, paired with top knives in regular single bevel, long double bevel and hollow ground profiles. Bottom knives are available for key locking, eccentric fixing, screw locking, and axial clamping on air shafts. Spacers and multiknife blocks complete the system, with components available in standard material groups and inch sizes.
Our slitter knife range covers score knives in a wide selection of angles and bevels, perforators in alloy tool steel and high carbon high chrome and male knives in long bevel, hollow ground, regular, dished and flat configurations. We provide top collar assemblies with eccentric ring or key locking, while female knives are available with eccentric or set-screw fixing.
Intertech Precision provides score cut knife holders, heavy-duty score anvil cylinders and score cut blades in 52100 and D2 alloys for the paper, film and foil converting industry. Our pneumatic shear systems feature patented soft-cut knife engagement to extend service life. We offer a resharpening service to restore knives to their original factory specifications.
Intertech Precision is your trusted partner for maximum slitting efficiency and quality. Our knowledgeable approach allows us to provide tailored solutions that meet your application’s needs. Beyond our premium quality products, we offer a wide range of services for improving the safety and speed of your production setup, including custom slitting and blade design, knife sharpening and more.
Intertech is your best source for circular knife blades and unmatched service. Request a free quote today or contact us at +1 (914) 725-4455 to learn more about our superior products and slitting solutions.
