- Premium CD7225 PVD Coating: Advanced bronze PVD matrix that effectively resists thermal cracking and heavy notch wear.
- Stainless Steel Specialist: High-performance PVD coating turning inserts for stainless steel (ISO M15-M30), delivering stable tool life.
- 4-Edge Economy & Factory Direct: Double-sided negative design delivers 4 stable cutting edges to maximize your workshop's budget.
- Running into tool-wear issues with sticky stainless steel? Click 'Send Inquiry' to get our factory-direct bulk pricing and a customized grade selection chart today!
DESCRIPTION
DNMG150604-MA CD7225 Carbide Turning Insert
Parameter / Feature | Specification Details |
Model Number | DNMG150604-MA |
Grade | CD7225 (Premium PVD Coated) |
Coating Type & Color | PVD Multi-Layer / Bronze Color |
Shape | D - 55° Diamond (Negative Insert) |
Corner Radius | 0.4 mm (04) |
Chipbreaker | MA (Optimized for Medium Turning / Smooth Evacuation) |
ISO Application Range | M15 - M30 (Stainless Steel) | Light P (Hard Steel) |
Machining Performance & Applications
Category | Application & Values |
Machining Hardness | HRC 20 – HRC 48 (Excellent for tough and work-hardening materials) |
Machining Method | Continuous turning, profiling, and light face/shoulder turning on CNC lathes |
Cutting Speed (V_c) | Stainless Steel: 100 - 220 m/min | Alloy/Hard Steel: 120 - 240 m/min |
Feed Rate (f) | 0.12 - 0.35 mm/rev |
Depth of Cut (a_p) | 0.5 - 3.0 mm |
Target Materials & Application Fields
Target Materials:
Stainless Steel: Austenitic 304, 316, 316L, Duplex stainless steel, and Martensitic hard stainless steel (M15-M30).
Hard Steel Parts: High-carbon steel, bearing steel, and heat-treated alloy steels under continuous cutting conditions.
Application Fields
Pump & Valve Manufacturing: Turning of stainless steel valve stems, impellers, and pump shafts.
Aerospace & Food Machinery: High-precision profiling of corrosion-resistant fasteners and food-grade hardware parts.
Automotive Components: CNC machining of high-strength structural joints and automotive exhaust system flanges.
CNC Inserts - Frequently Asked Questions
1. How do I choose the right grade for my specific machining application?
Choosing the correct grade is crucial for tool life and performance. We provide a comprehensive Grade Cross-Reference Chart that maps our CD Carbide grades to major international brands like Sandvik, Mitsubishi, and Kyocera. If you are unsure, simply provide us with the workpiece material (P, M, K, S, H) and machining conditions, and our engineers will recommend the best solution.
2. Can you provide customized CNC tools based on our drawings?
Yes. As a factory-direct manufacturer, we specialize in bespoke engineering. Whether you need non-standard dimensions, specific chipbreakers, or customized coatings for unique alloys, our technical team can develop products based on your technical drawings (PDF/STEP) or physical samples.
3. Do you offer free samples for testing before bulk orders?
We understand that "trial cutting" is the only way to verify tool stability. We offer sample packs for professional buyers to test performance on their own CNC machines. Please contact our sales team with your machine specifications and the material you are processing to request your trial samples.
4. How do you ensure the quality consistency of your carbide inserts?
Our quality control is integrated into every step of the production process in Zhuzhou. We use high-purity tungsten carbide powder and advanced PVD/CVD coating equipment. Each batch undergoes rigorous inspection, including microscopic edge analysis and hardness testing, to ensure that the performance of the 1,000th insert is identical to the 1st.
5. What is the typical lead time for international B2B orders?
For standard models in stock (such as WNMG, CNMG, etc.), we usually ship within 3-5 business days. For customized tools or large-volume OEM orders, the production cycle typically ranges from 2 to 4 weeks, depending on the complexity of the design and coating requirements.
6. Are you a manufacturer or a trading company?
We are a direct manufacturing enterprise based in Zhuzhou, the hunan of China’s tungsten carbide industry. By cutting out the middleman, we provide factory-direct pricing and faster technical support. This allows us to offer more flexible MOQs (Minimum Order Quantities) for small-to-medium-sized distributors and specialized machine shops.
