TBM Monoblock Cutter Hub is forged and processed using high-quality alloy steel (42CrMo), post-processing followed by tempering treatment.
Application Case
Mechanical Properties
Tensile strength: ≥1100 MPa, Yield point: ≥ 950 Mpa
Post-fracture elongation: ≥ 12%, Cross-sectional reduction rate: ≥ 45%
Impact absorption energy: ≥ 63 J
Cutter hubs heat treatment hardness: HRC 42 ± 2;
End covers heat treatment hardness: HRC 40 ± 2;
Cutter shafts heat treatment hardness: HRC 40 ± 2.
Workshop
Heat Treatment Department
Heat treatment determines the lifespan of cutter tools.The upper part of the Center Disc Cutter support is welded with a wear-resistant layer. the height should be no less than 3mm and the hardness should be no less than HRC 55.
Cooperative Customer
Package & Shipment
Delivery time : 55-60 working days sfter payment receipt confirmed (based on actual quantity).
Packing: standard export packing, or customized packing as your request.
Why choose us?
Shandong Tianyou Tunnel Engineering Equipment Co., Ltd., established in 2010, specializing in the research, development, and production of high-quality TBM cutters, TBM knives, and TBM disc cutter bearings. As a high-tech enterprise, we prioritize honesty and product quality, ensuring strict control of raw materials throughout manufacturing. As one of China's largest brush manufacturers, Tianyou boasts numerous national invention patents and has forged strong partnerships in the urban rail construction sector. Choose Shandong Tianyou for superior products and exceptional service, and experience why our brand is synonymous with trust and excellence in tunnel construction.
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