Longitudinal slitting for flat steel requires blades to sustain repeated impact and friction when cutting carbon steel, galvanized sheet and thin alloy strips. Many generic blades use simple heat treatment, leading to fast edge abrasion and burr formation after short running hours. Once the cutting edge loses sharpness, finished steel strips will have uneven edges, which triggers product rejection and unexpected machine shutdown.
A qualified flat steel longitudinal shear blade must balance hardness and toughness. Too high hardness brings cracking risk, while low hardness results in quick wear. This balance is the main technical difficulty most small blade factories cannot handle well. Xinzhe Tools has accumulated years of experience in metal cutting tool production to tackle this problem.
Xinzhe Tools focuses on custom industrial blade production and exports products to Indonesia, Malaysia, Thailand and other Southeast Asian metal processing markets. The factory adopts CNC precision grinding and vacuum heat treatment for each batch of flat steel longitudinal shear blades. Raw material inspection is carried out before machining, and every finished blade goes through flatness, parallelism and edge tolerance testing before packing.
Compared with ordinary suppliers, Xinzhe Tools keeps strict control over heat treatment temperature and holding time. This improves the wear resistance of blade edges while avoiding brittle fracture under heavy cutting load. Customers can send drawings or samples for non-standard size customization. The engineering team can adjust edge angle and material grade according to the thickness and tensile strength of the steel to be slit.
Using well-made flat steel longitudinal shear blades helps slitting lines run for longer continuous cycles. Less frequent blade replacement cuts maintenance labor and spare part inventory cost. Clean cutting edges reduce secondary trimming work and improve the qualification rate of finished steel strips.
For overseas buyers, stable delivery and export-standard packaging are also important considerations. Xinzhe Tools applies anti-rust treatment and wooden case packaging for sea transportation, preventing corrosion and collision damage during long ocean shipping. The sales team offers after-sales technical guidance for blade installation and daily maintenance, helping customers extend service life of cutting tools.
