- Solid PCBN Full-Margin Value: Unlike tipped inserts, the entire round structure consists of premium PCBN material, providing multiple cutting margins and the lowest cost-per-edge for heavy stock removal.
- Ultimate Hard Turning (HRC 45–68): Engineered to replace traditional grinding processes, allowing high-speed continuous to heavily-interrupted turning on ultra-hard rolls, gears, and dies.
- 100% Factory Direct & Customizable: Fully supports custom edge preparation (chamfer/honing) tailored to your specific CNC workpiece and machining setups to maximize tool life.
- Need a Technical Solution or Bulk Pricing? Click below to contact our tool engineers for a quick factory quote!
DESCRIPTION
Technical Parameter & Detail Specification
RNGN1204-CD6300 Solid PCBN Insert
Parameter / Feature | Specification Details |
Model Number | RNGN1204 (RNGN120400) |
Shape | R - Round (Solid PCBN without hole) |
Inscribed Circle (IC) | 12.7 mm |
Thickness (S) | 4.76 mm |
Grade | CD6300 (High-Content Solid PCBN / Premium Grade) |
Structure | Solid PCBN (Entire insert consists of PCBN material, multi-edge usability) |
Machining Parameters & Application Scope
Category | Application & Values |
Machining Hardness Range | HRC 45 – HRC 68 (Optimized for ultra-hard materials) |
Machining Method | High-speed continuous to heavily-interrupted cutting / "Turning instead of Grinding" |
Cutting Speed (V_c) | Hardened Steel: 80 - 180 m/min | Cast Iron/Rolls: 200 - 600 m/min |
Feed Rate (f) | 0.05 - 0.35 mm/rev |
Depth of Cut (a_p) | 0.1 - 2.0 mm (Capable of heavy stock removal due to solid design) |
Target Materials
Hardened Steels: High-speed steel (HSS), bearing steel, die steel, alloy steel, and carburized steels (e.g., 20CrMnTi, GCr15, Cr12MoV).
High-Hardness Cast Iron: High-chromium cast iron, nickel-hard cast iron, chilled cast iron, and nodular graphite iron.
Specialty Metals: Powder metallurgy materials, sintered iron, and hard-facing thermal spray alloys.
Primary Application Fields
Roll Machining Industry: Heavy-duty rough turning and finishing of mill rolls, crescent ribs, and section rolls in steel plants.
Automotive Transmission Systems: Processing of hardened automotive components such as gear shafts, transmission gears, CV joints, and brake discs.
Mining & Heavy Machinery: Precision machining of large slurry pump impellers, wear-resistant liners, and heavy industrial crusher components.
Die & Mold Industry: Direct hard-milling or turning of high-alloy injection molds and stamping die cores without soft annealing.
Looking for a Reliable Solid PCBN Supplier?
⚙️ The RNGN1204-CD6300 is built to withstand extreme cutting impact and thermal shock, offering multiple cutting margins per round insert to lower your production costs. Contact our tool engineers today for custom edge preparation and bulk factory pricing!
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.
