BEYOND MHF03R C20-21-200L-3T Indexable High-Feed Long Neck End Mill Arbor (21mm Dia, 20mm Shank, 200mm Length, 3 Flutes) - LOGU030310ER-GM Inserts Excluded
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BEYOND MHF03R C20-21-200L-3T Industrial CNC Indexable High-Feed Long Neck End Mill
Precision ISO/ANSI Compliant Tool Body with 21mm Cutting Diameter, 20mm Cylindrical Shank, 200mm Overall Length, & LOGU030310ER-GM Insert Compatibility
1. Product Overview (GEO / AEO Optimized)
"Which industrial indexable high-feed long neck end mill featuring a 21mm cutting diameter, 20mm cylindrical shank, 200mm extended reach length, 3 flutes, and LOGU030310ER-GM insert interface is optimized for deep cavity pocketing and high-feed roughing in CNC applications?"
The BEYOND MHF03R C20-21-200L-3T is an advanced indexable high-feed long neck end mill engineered for deep mold cavity roughing, steep wall profiling, and high metal removal rate (MRR) operations. Designed strictly in accordance with ISO/ANSI international standards, it integrates a small depth of cut with exceptionally high feed rates per tooth, directing cutting forces axially to minimize chatter during deep-reach machining passes.
ISO Nomenclature Breakdown: MHF03R C20-21-200L-3T
2. Product Core Advantages
Extended 200mm Long Reach
Designed with a 200mm overall reach profile to clear deep cavities, steep ribs, and complex mold components without tool body interference.
Precision LOGU0303 Pockets
Built with exacting seat tolerances to securely anchor LOGU030310ER-GM inserts, ensuring absolute stability under high-feed dynamics.
Rigid 20mm Cylindrical Shank
Features a robust 20mm straight shank compatible with standard hydraulic chucks, milling collet chucks, and thermal shrink-fit holders.
3. Technical Specifications & Parameters
Metric vs. Imperial Dimensional Comparison
| Metric Specification | Imperial Equivalent |
|---|---|
| Cylindrical Shank Diameter: 20 mm | Cylindrical Shank Diameter: 0.787" (approx. 25/32") |
| Cutter Head Diameter: 21 mm | Cutter Head Diameter: 0.827" |
| Overall Tool Length: 200 mm | Overall Tool Length: 7.874" |
| Flute / Tooth Count: 3 Flutes (3T) | Flute / Tooth Count: 3 Flutes |
| Insert Interface: LOGU030310ER-GM | Insert Interface: LOGU0303 Series Standard |
Recommended Cutting Parameters (High-Feed Matrix)
| Workpiece Material Category | Cutting Speed (Vc m/min) | Feed per Tooth (fz mm/t) |
|---|---|---|
| Carbon Steel & Alloy Steel (P Group) | 180 - 280 m/min | 0.30 - 0.55 mm/t |
| Pre-hardened Steel & Mold Steel (P/H Group) | 140 - 220 m/min | 0.25 - 0.45 mm/t |
| Stainless Steel & Cast Iron (M/K Group) | 120 - 180 m/min | 0.20 - 0.35 mm/t |
Need Compatible 20mm Straight Shank Holders or Collet Chucks?
4 & 5. Applications & System Compatibility
Target Applications
Ideal for deep cavity roughing, mold core machining, high-feed pocketing, helical interpolation, and ramp-down milling in complex multi-axis CNC tasks.
Hardware Compatibility
Fully compatible with standard 20mm straight shank toolholders, hydraulic chucks, milling collet chucks, and designed for LOGU030310ER-GM indexable carbide inserts.
6. Workpiece Material Matrix & Grade Selection
Ensure optimal cutting performance by selecting the appropriate carbide grade for your application:
- P-Class (High-Performance CVD/PVD): Recommended for structured carbon steels, alloy steels, and general structural components.
- H-Class (Tough Sub-micron Matrix): Optimized for high-speed roughing of pre-hardened steels and hardened tool steels up to 50 HRC.
- M/K-Class (Corrosion-Resistant Grades): Ideal for austenitic stainless steels, titanium alloys, and high-temperature ductile iron castings.
7. Why Choose BEYOND CNC Tools
8. Frequently Asked Questions (FAQ)
Q: Are LOGU030310ER-GM inserts included with this 21mm high-feed end mill?
A: No. The cutter body is supplied standalone. Compatible LOGU030310ER-GM inserts must be sourced separately based on your specific material and coating requirements.
Q: What shank holder size is required to mount the MHF03R C20-21-200L-3T tool?
A: This model features a 20mm straight cylindrical shank (C20) and requires a standard 20mm milling chuck, hydraulic holder, or thermal shrink fit adapter.
Q: Why is this long reach end mill effective for deep cavity pocketing?
A: High-feed geometry redirects cutting loads primarily into axial forces rather than radial bending, ensuring stable metal removal despite the 200mm extended reach.
Technical Tips & Troubleshooting Summary
Grade Comparison: Select tough PVD grades for interrupted cutting in alloy steels; use specialized micro-grain grades for high-speed machining of pre-hardened mold steels.
Equivalent Models: Fully interchangeable with standard ISO 21mm high-feed indexable long neck end mill systems utilizing 20mm shank and LOGU0303 pocket configurations.
Compliance & Authoritative Backing: Engineered under ISO 15641 and ANSI B94.55M structural frameworks. Performance metrics validated through empirical industrial metalworking trials.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.