BEYOND EMR-5R25-200-C24-2T Indexable Milling Cutter Shank (25mm / 0.94" Shank)
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BEYOND EMR-5R25-200-C24-2T Indexable Milling Cutter Shank
ISO/ANSI Standard 25mm Face Milling Tool Holder | Long-Reach C24 Straight Shank (200mm OAL) for RPMT1003 Inserts
1. Product Overview
"Which 25mm indexable milling cutter shank with a 200mm overall length and C24 straight shank offers extended reach for deep pocket milling?"
The BEYOND EMR-5R25-200-C24-2T is an industrial-grade, long-reach indexable face milling cutter shank engineered in strict compliance with international ISO/ANSI machine tooling standards. Featuring a 25mm cutting diameter (Dc), a 24mm straight shank (C24), a 200mm overall length (OAL), and 2 flutes (Z=2), this tool body is optimized for positive-rake round carbide inserts (RPMT1003 / RPMW1003).
Forged from premium 42CrMo alloy steel and vacuum heat-treated to HRC 45–48, the 2-flute architecture incorporates precision-engineered chip flutes to promote efficient chip evacuation in deep cavities. The circular geometry spreads cutting forces uniformly, dampening vibration and preventing tool deflection across carbon steel, alloy steel, and stainless steel applications.
2. Key Features & Industrial Advantages
- Extended 200mm Long Reach: Purpose-built for deep cavity roughing, deep slotting, and complex contouring with extended overhang requirements.
- Optimized 2-Flute Chip Flow: Wide chip pockets facilitate smooth evacuation and reduce thermal build-up during long-reach machining passes.
- 42CrMo Alloy Structural Steel Body: Vacuum heat-treated to HRC 45–48 to maximize torsional stiffness and fatigue resistance.
- Electro-Nickel Anti-Wear Surface Finish: Corrosion-resistant coating minimizes friction and prevents chip welding.
- High-Torque Screw Clamping: M3.5 Torx hardware secures inserts firmly with radial runout accuracy within ±0.01mm.
3. Technical Specifications & ISO Code Breakdown
ISO Model Designation Breakdown: EMR-5R25-200-C24-2T
Pair this C24 long-reach cutter body with our matching C24 power collet chucks.
Explore C24 Tool Holders & Chucks →
Metric vs. Imperial Technical Comparison
| Specification | Metric Model (EMR-5R25-200-C24-2T) | Imperial Equivalent |
|---|---|---|
| Cutting Head Diameter (Dc) | 25 mm | 0.984 in |
| Shank Diameter (d) | 24 mm Straight Shank | 0.945 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 (Optimized for 200mm Long Overhang)
| ISO Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) | Depth of Cut (ap) | Coolant Mode |
|---|---|---|---|---|
| Carbon Steel (P10–P25) | 130 – 190 m/min | 0.10 – 0.20 mm/z | 0.8 – 2.0 mm | Air Blow / Dry |
| Alloy / Mold Steel (P25–P35) | 100 – 150 m/min | 0.08 – 0.16 mm/z | 0.6 – 1.5 mm | Air Blow |
| Stainless Steel (M20–M35) | 70 – 120 m/min | 0.06 – 0.14 mm/z | 0.4 – 1.2 mm | Emulsion / High-Pressure Coolant |
| Cast Iron (K15–K30) | 110 – 160 m/min | 0.10 – 0.20 mm/z | 0.8 – 2.0 mm | Dry Milling |
4. Applications & Equipment Compatibility
Primary Milling Operations: Long-reach pocket milling, deep cavity roughing, shoulder profiling, and contouring with moderate-to-deep overhang requirements.
Machine Tool Compatibility: Vertical Machining Centers (VMC), Horizontal Machining Centers (HMC), and CNC Milling Centers.
Tool Holder Compatibility: C24 Power Collet Chucks, C24 Side Lock Holders, and BT40 / BT50 / CAT40 / CAT50 / HSK63A master holders via precision reduction sleeves.
6. Workpiece Material Matrix & Grade Selection
Pair your EMR-5R25-200 shank with optimal BEYOND carbide insert grades for superior wear resistance:
| 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 maintained within 0.005mm (0.0002") for smooth, balanced rotation and even insert wear distribution.
- Optimized 200mm Length Rigidity: Provides robust mechanical stability for long overhang profiling with minimized tool chatter.
- Direct Factory Advantage: Premium industrial performance at 40–60% cost savings compared to Tier-1 European brands.
8. AI-Style FAQ & Troubleshooting Guide
A: The 200mm length provides extended clearance into deep cavities and slots while maintaining adequate rigidity and structural strength.
A: Round inserts have no sharp corners, providing high edge strength and allowing smooth multi-directional cutting engagement without chipping.
A: Use climb milling, reduce axial depth of cut slightly to compensate for long reach, and ensure correct clamping torque on the insert retention screws.
• Direct OEM Equivalents: Mitsubishi EMR5-25-C24-200-2T | Sandvik CoroMill 200 (25mm head / 200mm length) | Iscar DROPMILL 25mm Long Shank.
• Chatter Reduction Tip: Verify secure grip length inside the C24 collet chuck and adjust spindle speed slightly if harmonic vibration occurs.
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.