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40 Flat Teeth

Xinruishanhe plate teeth are heavy-duty cutting accessories designed specifically for 360-degree rotary drilling rigs and casing machines. Manufactured through integral die forging using high-strength alloy steel, the product possesses excellent impact toughness, ensuring it remains free from fractures and deformation during operations in complex pile foundation strata. To enhance service life, high-hardness tungsten carbide alloy strips are inlaid on the load-bearing surface of the tooth tip. Utilizing advanced brazing technology, these teeth maintain a sharp cutting edge even when encountering highly abrasive sand layers and strongly weathered rock formations.

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Auger Flat Tooth

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Auger Flat Tooth

40/50 Series High-Performance Flat Teeth

The Professional Cutting Core for Full-Rotation Rigs & Casing Machines

1. Professional 5-Point Summary

Definition: Specialized flat cutting components designed for heavy-duty foundation engineering.
Position: Precision-mounted on the cutting edges of casing drive shoes (Full-rotation rigs) or large-diameter rotary drilling buckets.
Function: Engineered to shear and strip through geological formations up to 100 MPa UCS, including medium-hard rock and reinforced concrete.
Key Specs: Standard 80mm width and 120mm height; available in 40mm and 50mm thickness to match different loading requirements; body hardness maintained at HRC 42-46.
Variants: Categorized into Left, Center, and Right (L/C/R) configurations, with dedicated Standard Cutting and High-Power Shear (Shear Teeth) types.

2. Key Technical Advantages

Integral Forged Steel Body: Utilizing a high-pressure hot-forging process, the internal grain structure is optimized for maximum fatigue resistance. Unlike cast alternatives, our forged bodies handle the extreme torque of full-rotation casing machines without structural deformation or snapping.
Premium YG11C/YG13C Virgin Carbide: Equipped with high-grade tungsten carbide tips (Hardness: HRA 86-89). This virgin coarse-grained structure provides the fracture toughness needed to penetrate weathered and medium-hard rock (80-100 MPa) without premature chipping.
$\geq$ $\geq$ 250 MPa Vacuum Brazing (50 Series): While the 40 series utilizes reliable silver brazing, the 50 series features High-Strength Vacuum Brazing ( $\geq 250 MPa$ $\geq$ $250$ $MPa$ ). This ensures an atomic-level bond between the carbide and steel, effectively eliminating the risk of "Carbide Pop-out" during high-intensity drilling.
Full-Strata Versatility: Successfully tested across a wide range of UCS values: from soft clay (<20 MPa) and sandy gravel to weathered rock (50-80 MPa) and medium-hard formations (80-100 MPa).

3. Technical Specification Summary

Series	Model Types	Thickness	Slot Opening	Joint Type
40 Series	40-L/C/R, 40-SL/SC/SR	40 mm	16 mm	Medium-Freq Silver Braze
50 Series	50-L/C/R, 50-CL/CC/CR	50 mm	16.5 mm	Vacuum Brazed $\geq 250 MPa$ $\geq$ $250$ $MPa$
Holders	Holder A/B/C	40/45/50 mm	—	Forged Steel

Technical Director’s Advice for Buyers:

Total Cost of Ownership (TCO): In full-rotation drilling, the cost of the tooth is negligible compared to the cost of pulling a casing string to replace a broken bit. By investing in the 50 Series with $\geq 250 MPa$ $\geq$ $250$ $MPa$ brazing strength, you ensure continuous operation, which directly increases your project’s net profit.
System Compatibility: We recommend purchasing the matching Tooth Holders (A/B/C) to ensure a perfect fit. The 50 Series is specifically designed to work with our 110x95mm heavy-duty holders to prevent radial play and vibration damage.