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Help CenterHongshengjie Special M42 Bimetallic Band Saw Blade for Cutting I-beam Profiles, 3350*27, With Tensile Teeth for Durable Sawing and Tensile Strength
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Specification and model: 3350*27 indicates a length of 3350mm and a width of 27mm. This is typically suitable for medium-sized horizontal band sawing machines, and is appropriate for sawing medium-sized I-beams, H-beams, and other profiles.
Material grade: M42 and M51 are cobalt-containing high-speed steels (with a cobalt content of 8%), which exhibit superior heat resistance, red hardness, and wear resistance compared to ordinary high-speed steel materials. They are commonly used as tooth tip materials for sawing medium and high-strength steel.
Tooth design: "Anti-stretch Tooth" is a trade name or a specific tooth shape. When used for I-beams, due to the significant changes in material cross-section in the sawing path (thick flanges and thin webs), the anti-stretch tooth reduces impact and vibration during sawing by optimizing tooth pitch, tooth groove, and tooth separation, preventing "stretching" (tooth loss or chipping) caused by uneven stress.
Application object: "Dedicated for I-beam profiles" indicates that the tooth shape and tooth separation design have taken into account the characteristics of I-beams, ensuring greater stability during sawing of profiles, reducing the risk of saw jamming or off-cutting.
Claimed performance: "Durable sawing, tensile strength and durability" emphasizes two aspects: first, the long lifespan of the saw blade (guaranteed by M42 wear resistance); second, its strong ability to resist fracture and tooth breakage under variable loads (guaranteed by the tooth design).
Usage suggestions:
Matching equipment: Confirm that your sawing machine can install a saw blade with a length of 3350mm and a width of 27mm.
Sawing parameters: For I-beams, it is recommended to use a linear speed of 60-80 m/min (moderate to slow), with a slightly lower feed pressure on the flange section, which can be appropriately increased after fully entering the web plate. Be sure to use cutting fluid (emulsion) for adequate cooling.
Break-in: After installing a new saw blade, saw with about 50% of the normal feed rate for 2-3 hours to break it in.
Advantages of Hongshengjie cutting profile band saw blades: The tensile tooth design optimizes the tooth pitch and tooth groove space, effectively reducing the impact and vibration caused by sudden changes in material stress during alternating sawing of "thick-thin-thick" profiles. This significantly reduces the two most common faults that occur when sawing I-beams: tooth pulling (tooth loss) and tooth breakage.
Compared to general-purpose saw blades: When sawing I-beams, general-purpose saw blades often experience a sudden decrease in force at the web, leading to "tooth snapping" or "tooth breaking" and significantly reducing the lifespan of the saw blade.
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