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Oscillating Knives
Sundi provides high-quality, durable oscillating knives for digital cutting systems. Our knives are compatible with plotters and digital cutting machines from leading manufacturers such as Esko, Kongsberg, Summa, Zund, Jingwei JWEI, Elitron, iEcho, Gerber, and Mimaki.
Our oscillating knives are interchangeable and designed for seamless operation across different cutting systems, offering state-of-the-art technology and high-performance cutting tools that enable you to enhance processing capabilities, simplify maintenance, and save valuable time.
Need assistance with digital cutting? Contact us! We are committed to providing you with exceptional service.
What is a Oscillating Knife
Oscillating Knife (Vibration Knife) is an advanced cutting tool technology that utilizes high-frequency, low-amplitude vertical oscillation for material processing. Unlike traditional rotary blades or laser cutting, the core innovation lies in the blade’s extremely high-frequency vertical reciprocating motion (oscillation) during cutting – typically reaching thousands to over 20,000 oscillations per minute – with a minimal amplitude (generally ranging from fractions of a millimeter to several millimeters).
Core Working Principles:
High-Frequency Oscillation: The blade is driven by precision motors or piezoelectric ceramic actuators to perform rapid, controlled vertical reciprocating motion.
“Woodpecker-Style” Cutting: This motion pattern resembles a woodpecker’s pecking action, enabling the blade to engage and penetrate materials at ultra-high frequencies.
Reduced Cutting Resistance: The oscillation dramatically lowers static friction at the blade-material contact point, resulting in significantly reduced dynamic cutting forces.
Precision Control: Oscillation frequency, amplitude, cutting speed, and depth are all subject to precise adjustment based on material properties.
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Advantages of Oscillating Knife
Compared to laser cutting, oscillating knives offer a purely mechanical, cold-cutting process with no heat-affected zone, eliminating risks of material melting, burning, deformation, or toxic fumes. The result is clean, smooth edges without burrs or pressure marks. With significantly lower cutting force, they reduce stress on sensitive materials like foam or composites, enable lighter machine structures, and lower energy consumption. Paired with CNC systems, oscillating knives deliver high precision and consistency, while offering longer tool life and a cleaner working environment.
Applications of Oscillating Knives
Oscillating knives are widely used across industries that demand precision cutting of flexible, soft, or layered materials—offering clean, burr-free edges without thermal damage.
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Automotive
Interior components: carpets, headliners, insulation pads,Foam gaskets, composite parts, seatbelt materials
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Aerospace
Carbon fiber / glass fiber prepregs , Honeycomb composite panels, Thermal and acoustic insulation materials
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Footwear & Fashion
Leather, synthetic leather, textiles Insoles, foam padding, lining materials,
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Advertising & Signage
Foam letters, KT boards, stickers, cardstock
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Packaging & Printing
Precision die-cutting, labels, corrugated cardboard, Protective films, foam packaging
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Electronics
FPC substrates, insulation films, adhesive-backed materials ,Foam gaskets for electronic assembly
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Furniture & Home
Sofa fabrics, mattress foams, carpets, floor mats
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Medical
Medical-grade foam, wound dressings, gel pads, medical packaging
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