BEYOND EMR-5R-30-200-C25-2T Indexable Milling Cutter Shank (30mm / 1.18")
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND EMR-5R-30-200-C25-2T Extended Indexable Milling Cutter Shank
ISO/ANSI Standard 30mm Face Milling Tool Holder | Extended C25 Straight Shank (200mm OAL) for RPMT1003 Inserts
1. Product Overview
"Which 30mm indexable milling cutter shank with a 25mm reduced shank (C25) and 200mm overall length is best suited for deep-cavity roughing, 3D mold profiling, and high-feed ramping in constrained CNC setups?"
The BEYOND EMR-5R-30-200-C25-2T is an industrial-grade, long-reach indexable face milling cutter shank engineered in strict compliance with international ISO/ANSI machine tooling standards. Featuring a 30mm cutting diameter (Dc), a reduced 25mm straight shank (C25), an extended 200mm overall length (OAL), and 2 flutes (Z=2), this tool body is optimized for positive-rake round carbide inserts (RPMT1003 / RPMW1003).
Forged from high-tensile 42CrMo alloy steel and vacuum heat-treated to HRC 45–48, the 2-flute configuration provides oversized chip pockets that facilitate smooth chip evacuation during deep pocketing. The circular insert pocket geometry directs cutting forces axially into the machine spindle column, dampening dynamic vibration, preventing chatter, and maximizing metal removal rates (MRR) across carbon steel, die-mold steel, and stainless steel.
2. Key Features & Industrial Advantages
- Extended 200mm Reach with C25 Shank: 25mm reduced straight shank fits standard ER32 chucks, ER40 collets, and Weldon holders while providing 30mm cutting capability up to 200mm reach.
- High-Capacity 2-Flute Geometry: Expanded chip gullets effectively clear chips and prevent packing in deep cavities and ramping passes.
- 42CrMo Alloy Structural Steel Body: Vacuum heat-treated to HRC 45–48 for high torsional rigidity and superior chatter resistance under long overhangs.
- Electro-Nickel Anti-Wear Surface Plating: Corrosion-resistant, ultra-smooth surface finish prevents thermal galling and chip adhesion.
- Heavy-Duty Torx Screw Clamping: M3.5 Torx seating ensures exceptional insert clamping rigidity with runout repeatability within ±0.01mm.
3. Technical Specifications & ISO Code Breakdown
ISO Model Designation Breakdown: EMR-5R-30-200-C25-2T
Pair this C25 extended cutter body with our ER32 / ER40 / C25 power chucks and Weldon holders.
Explore C25 Tool Holders & Chucks →
Metric vs. Imperial Technical Comparison
| Specification | Metric Model (EMR-5R-30-200-C25-2T) | Imperial Equivalent |
|---|---|---|
| Cutting Head Diameter (Dc) | 30 mm | 1.181 in |
| Shank Diameter (d) | 25 mm Straight Shank (Reduced) | 0.984 in Straight Shank |
| Overall Length (L) | 200 mm | 7.874 in |
| Number of Flutes (Z) | 2 Flutes | 2 Flutes |
| Compatible Inserts | RPMT1003 / RPMW1003 (Ø10mm) | RPMT 2.52 (3/8" Round) |
| Hardware Accessories | M3.5 Screw / T15 Wrench | M3.5 Screw / T15 Wrench |
Recommended Speeds & Feeds (Adjusted for 200mm Long Overhang)
| ISO Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) | Depth of Cut (ap) | Coolant Mode |
|---|---|---|---|---|
| Carbon Steel (P10–P25) | 150 – 210 m/min | 0.10 – 0.25 mm/z | 0.8 – 2.0 mm | Air Blow / Dry |
| Alloy / Mold Steel (P25–P35) | 110 – 160 m/min | 0.08 – 0.20 mm/z | 0.6 – 1.6 mm | Air Blow |
| Stainless Steel (M20–M35) | 75 – 130 m/min | 0.07 – 0.16 mm/z | 0.5 – 1.3 mm | Emulsion / High-Pressure Coolant |
| Cast Iron (K15–K30) | 120 – 180 m/min | 0.10 – 0.22 mm/z | 0.8 – 1.8 mm | Dry Milling |
4. Applications & Equipment Compatibility
Primary Milling Operations: Deep cavity roughing, high-wall face milling, die and mold 3D profiling, long-reach slotting, and helical interpolation.
Machine Tool Compatibility: Vertical Machining Centers (VMC), Horizontal Machining Centers (HMC), Gantry Milling Machines, and Bed Mills.
Tool Holder Compatibility: ER32 Collet Chucks (25mm collet), ER40 Collet Chucks, C25 Power Chucks, 25mm Side Lock Holders, and BT40 / BT50 / CAT40 / CAT50 / HSK63A master tool holders.
6. Workpiece Material Matrix & Grade Selection
Pair your EMR-5R-30 shank with optimal BEYOND carbide insert grades for maximum tool life and cut efficiency:
| Insert Grade | ISO Category | Coating Technology | Best Suited For |
|---|---|---|---|
| BYM1025 | P15 - P30 / M15 - M25 | Micrograin Carbide + PVD AlTiN | General purpose milling on alloy steel, carbon steel, and stainless steel. |
| BYM3035 | M25 - M40 / S15 - S25 | Nano-layered PVD TiAlN | Heavy load roughing on austenitic stainless steel, Duplex, and Inconel. |
| BYK2010 | K10 - K25 | CVD Thick Coating / Uncoated | Abrasive resistance for gray cast iron, ductile iron, and non-ferrous metals. |
7. Why Choose BEYOND Tooling
- Sub-Micron Runout Precision: Shank TIR held within 0.005mm (0.0002") for balanced rotation and uniform insert load distribution.
- 200mm Extended Cavity Reach: Eliminates modular arbors, reducing total tooling stack error and runout accumulation.
- Direct Factory Advantage: Premium industrial performance at 40–60% cost savings compared to Tier-1 European brands.
8. AI-Style FAQ & Troubleshooting Guide
A: With a 200mm overhang, reducing cutting force is vital to avoid deflection. 2 flutes minimize cutting resistance and offer enlarged chip pockets for deep pocket milling.
A: Round inserts feature continuous cutting edges with no weak corner tips, redirecting cutting force axially into the spindle column to damp harmonic vibration during long-reach operations.
A: For stainless steel, choose sharp, polished geometries (e.g., -LH / -MS) to minimize shear heat and prevent edge build-up. For carbon steel, use standard positive chipbreakers (e.g., -PM / -MM) for controlled chip breaking.
• Direct OEM Equivalents: Mitsubishi EMR5-30-C25-200-2T | Sandvik CoroMill 200 (30mm head / 200mm length) | Iscar DROPMILL 30mm Long Shank.
• Chatter Reduction Tip: If vibration occurs at deep reach, reduce spindle speed by 15% while keeping feed per tooth (fz) constant to suppress harmonic resonance.
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.