Top Drag Blades for CNC Cutters and Plotters
Top Drag Blades for CNC Cutters and Plotters: Improve Precision and Efficiency
Drag blades play a key role in ensuring accuracy, durability, and overall efficiency for professionals working with CNC cutters and plotters. As a leading manufacturer specializing in carbide blades, we understand the critical role drag blades play in achieving superior cutting results, and we’ll take a deep dive into the essential aspects of drag blades, their benefits, and how our high-quality carbide drag blades can elevate your cutting process.
Learn About Drag Blades
Drag blades are specialized tools with CNC cutters and plotters that allow for precise cutting of a wide range of materials. Unlike other cutting tools, drag blades operate by dragging a sharp blade across the surface of a material, rather than spinning or sawing. This method of cutting is particularly effective for materials that are difficult to handle with traditional rotary blades, such as vinyl, paper, textiles, and other flexible substrates.
Drag blade cutting on CNC cutters is commonly used to create labels, stickers, signs, decals, packaging and prototypes, crafts, and apparel.
At the heart of any drag blade is the blade, which is designed to maintain a sharp edge and withstand the wear and tear of continuous use. High-quality drag knives ensure consistent cutting performance, reduce material waste, and increase the overall efficiency of your cutting operation.
Differences between drag knives and cutters
Unlike drag knives, tangential knives are driven by a motor. This technology sets the direction of the knife to the desired angle relative to the cutting surface and future cutting path.
Unlike the knives that rotate freely in drag knife cutters, tangential knives are controlled by a motor. This motor positions the knife at the correct angle and position for each cut. While drag knives remain in the media as they change direction during the cutting process, tangential technology lifts the knife from the media, rotates it, and places it back into the media. Tangential knife technology allows for perfectly shaped cut corners on thin media as well as on thick, rigid media because no drag would affect the knife’s trajectory.
When it comes to drag knives, carbide blades stand out for their excellent durability and performance. Carbide, a material known for its hardness and wear resistance, offers several advantages over traditional steel blades:
1. Enhanced durability: Carbide blades stay sharp longer than steel blades. This means fewer replacements and consistent cut quality over time.
2. Superior cutting accuracy: The hardness of carbide allows for finer, more accurate cuts, which is essential for intricate designs and delicate work.
3. Reduced wear: Carbide’s wear resistance means longer blade life, which is especially beneficial in high-volume cutting applications.
4. Consistent performance: Carbide blades provide stable, reliable cutting performance, minimizing downtime and ensuring your CNC cutter or plotter operates at peak efficiency.
Key Features of Our Carbide Drag Knives
As a leading manufacturer of carbide blades, we pride ourselves on providing products that meet the highest quality and performance standards. Our Carbide Drag Knives have several key features:
1. Each blade is carefully crafted to ensure exacting sharpness and alignment standards. This precision engineering improves the accuracy of the cut and minimizes the potential for error.
2. Our drag knives withstand the rigors of continuous use. The carbide material ensures that the blade maintains its integrity even under heavy loads.
3. Our drag knives are designed to be compatible with a wide range of CNC digital cutters and plotters. This versatility ensures you get top-notch performance no matter which specific piece of equipment you use it on.
4. The durability of carbide means our blades don’t require frequent sharpening or replacement. This ease of maintenance means lower operating costs and less downtime.
Drag Knife for Zund Digital Cutting Systems
As for drag knife cutting, this cutting technology can be performed on non-power tools such as UCT, KCT, VCT, SCT, C2, PPT+socket 40, etc.
Zund Drag Blade Types: Round Stock Blade, Flat Stock Blade, Pad Cutting Blade, V-Cut Blade
| Type of drag blade | Drag blade | Blade holder |
|---|---|---|
| Round-stock blades – pointed | Z1, Z2, Z3, Z4, Z5, Z6, Z7 | C2, C2P, KCT+sleeve 40, KCM-S |
| Flat-stock drag blades – pointed | Z10, Z11, Z44, Z46, Z83, Z101, Z102, Z103 | Z10, Z11, Z44, Z83, Z101, Z103, : UCT + sleeve 40 / SCT + Blade holder type 1 3960322; Z46, Z102: UCT, SCT + Blade holder type 5 3960320 |
| Flat-stock drag and oscillating knives – pointed | Z16, Z17 | POT+Blade holder 0.63 mm, UCT+Blade holder type 3 3960324, EOT, POT+ Blade holder 1.5 mm + Blade reduction 1.5/ 0.63 mm 5003138, EOT-205+Blade holder 5208744, SCT+Blade holder type 3 3960324, PCT + Blade holder type 3 3960324 |
| Drag and oscillating knives – flat | Z104 | POT + Blade holder 0.63 mm, EOT, POT + Blade holder 1.5 mm + Blade reduction 1.5/ 0.63 mm 5003138, EOT-250 + Blade holder 5208744, PCT + Blade holder type 3 3960324 |
| V-Cut blades | Z70, Z71, Z701, Z73 | Z70: T75+3102186 / 5005782 Z71: VCT+Blade holder 5206263 / 5206264 Z73: VCT+5206262, T75+3102186 Z701: VCT2+5221596 |
| Mat-cutting blades | Z30, Z31, Z33, Z34, Z35 | PPT + Blade holder 3960331 |
Drag knives for ESKO / Kongsberg CNC cutters
Drag knives for CNC cutting tables made by ESKO Kongsberg are also available. They often have the same blade design as Zund knives and some other manufacturers, and can be interchangeable, but not completely identical in some cases. But you should of course read the knife specifications before choosing a drag knife or its alternative. You can read more about the interchangeability of digital cutting knives in our blog “Zund & Summa Blades Fit Various Digital Cutting Machines”.
For example, the knife from Summa 500-9807, Zund Z46 and Esko BLD-SF346 (i-346) / G42458406 are almost identical: they have the same 6mm width, thickness, length and cutting angle.
Summa 500-9803 60°, Z11 and Esko BLD-DF113 G42443036 are also similar knives, with the same 50° angle, but in this case Summa 500-9803 is twice as short and is 25mm instead of 50mm.
Drag knives for Summa vinyl cutters
As for the CNC vinyl cutters from the manufacturer Summa, they cut adhesive vinyl film, foil, adhesive PVC, banner vinyl using drag knives.
Summa drag module is required to use the drag knife cutting technique. For example, Summa S One and S2 D-Series cutters use only drag knives. Summa S2 tangential cutters may optionally use drag knives, giving up the advantages of tangential cutting. Summa Series F tables can be equipped with 2 modules and different tools, but Drag module is standard and Tangential – optional.
There are 3 types of drag knives for Summa vinyl cutters: 391-231 – Drag Knife – 60°, 391-358 – Drag Knife – 55°, 391-360 – Standard Knife 36°.,Summa cutters ship with a 36 degrees standard knife pre-installed. The knife is the best choice for cutting the vast majority of common sign vinyls. As a general rule, use the shallowest angle knife that will cut the depth required by the workflow. For example, 36 degrees is preferable to 55 degrees, and 55 degrees is preferable to 60 degrees.
| Drag Knives | Summa Cutter Serie | Compatible Blade Holder | ||
|---|---|---|---|---|
| 391-360 Summa 36° Drag Knife Blade Max thickness 0.25mm flexcut 0.50mm knife offset 0.43mm overcut 0.10mm | Summa F Series Flatbed Cutters Summa S2 Series Vinyl Cutters Summa S Class Vinyl Cutters SummaSign/SummaSign Pro D Series Vinyl Cutters SummaCut Series Vinyl Cutters Summa DC3/DC4/DC5 Printer Cutters | Summa Standard Drag Knife Blade Holder #391-332 dia 1.5mm. | ||
| 391-163 Summa 55° Thick Materials Drag Blade Max thickness 0.80mm flexcut 0.80mm knife offset 0.90mm overcut 0.10mm | Summa F Series Flatbed Cutters Summa S2 D Series Vinyl Cutters SummaCut Series Vinyl Cutters SummaSign/SummaSign Pro D Series Vinyl Cutters | Summa Thick Materials Blade Special Holder #391-363 | ||
| 391-358 Summa 55° Thick Materials Drag Blade Max thickness 0.80mm flexcut 0.80mm | Summa F Series Flatbed Cutters Summa S2 D Series Vinyl Cutters SummaCut Series Vinyl Cutters SummaSign/SummaSign Pro D Series Vinyl Cutters | Summa Thick Materials Blade Special Holder #391-363 dia 2mm | ||
| 391-231 Summa 60° Rhinestone Drag Knife Blade Max thickness 0.60mm flexcut 0.60mm knife offset 0.50mm overcut 0.50mm | Summa F Series Flatbed Cutter Summa S Class 2 D Series Vinyl Cutters SummaCut Vinyl Cutters SummaSign / SummaSign Pro D Series | Summa Standard Drag Knife Blade Holder #391-332 dia 1.5mm. | ||
Ruida is a carbide tool manufacturer with ten years of professional experience, committed to providing high-performance cutting solutions. We offer a comprehensive product line, including tools, various types of inserts, router bits, and milling cutters to meet the needs of different industries. Our tools are made of solid tungsten carbide material through pressing and sintering to ensure excellent durability and cutting accuracy. All of our products are manufactured to exceed precise OEM standards
- Phone: +86-18808248833
- WEB: ruida-blades.com
- Fax: +86-0755-89628877
- Email: info@ruida-blades.com


