Import Cnga Cbn Inserts — Buy in wholesale FOB from Supplier in China

Cnga Cbn inserts are cubic boron nitride cutting tools designed for hard turning applications, specifically engineered for machining hardened steels like GCr15 with hardness levels between HRC58 and HRC63. The insert geometry CNGA120408 has a 12mm nominal width, 4mm thickness, and 8mm nose radius, optimized for finish turning bearing surfaces with minimal vibration. Performance data from application cases shows a tool life of 100 pieces per edge at a cutting speed of 150m/min, feed rate of 0.1mm/rev, and depth of cut of 0.3mm, significantly outperforming conventional ceramic inserts which typically last 60 pieces under lower speeds.

These inserts use polycrystalline cubic boron nitride with a binder phase that enhances fracture resistance under high thermal loads. The substrate is typically a tungsten carbide base with a graded composition to improve impact resistance. Standard CBN grades for such inserts include ITS950, which balances wear resistance and toughness for finishing operations. Typical industrial tolerances for insert thickness are ±0.05mm, and edge preparation often includes a honed or chamfered cutting edge to reduce chipping. The material is not coated, relying instead on intrinsic CBN properties for thermal stability and chemical inertness against ferrous metals.

These inserts are primarily purchased by manufacturers of precision bearings, automotive transmission components, and hydraulic systems requiring hardened steel machining with surface finishes below Ra 0.4μm. Buyers include OEMs and Tier 1 suppliers in the automotive and industrial machinery sectors. Packaging is typically in sealed, anti-corrosion boxes with individual insert holders. Trade terms are usually FOB Zhengzhou Port, with minimum order quantities typically starting at 50 pieces per insert type. Lead times are 15 to 25 days after order confirmation, subject to production scheduling.

Insoll Tools Technology Co., Ltd. is a manufacturer based in Zhengzhou, Henan Province, China, specialising in industrial cutting tools for hard machining applications. The company operates from a facility located at No.41, Jinsuo Road, High-Tech Zone, and holds a harbor trust tier rating, indicating a verified business presence and documented export activity. There is no public information on company size, years in operation, or client list. The listing confirms no response rate or average response time, suggesting limited buyer communication channels.

The supplier focuses exclusively on CBN and ceramic inserts for precision turning, with no indication of offering other tooling categories such as drills, end mills, or indexable inserts for milling. Their product development appears driven by application-specific case data, as shown in the provided machining parameters for GCr15. There is no mention of in-house R&D, ISO certification, or laboratory testing facilities. Buyers should treat this as a direct manufacturer with no third-party branding or distribution layer.