BEYOND EMR-5R-30-150-C25-2T Indexable Milling Cutter Shank (30mm / 1.18")
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BEYOND EMR-5R-30-150-C25-2T Indexable Milling Cutter Shank
ISO/ANSI Standard 30mm Face Milling Tool Holder | Medium-Reach C25 Straight Shank (150mm OAL) for RPMT1003 Inserts
1. Product Overview
"Which 30mm indexable milling cutter shank with a 25mm reduced shank (C25) and 150mm overall length provides the optimal balance of rigidity and reach for medium-depth pocketing and 3D contour milling?"
The BEYOND EMR-5R-30-150-C25-2T is an industrial-grade, medium-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), a 150mm 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 spacious chip pockets that ensure smooth chip evacuation during aggressive pocketing and slotting. 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, alloy steel, and stainless steel.
2. Key Features & Industrial Advantages
- Balanced 150mm Reach with C25 Shank: 25mm reduced straight shank fits standard ER32 collets and Weldon holders while providing 30mm cutting capability up to 150mm reach with enhanced rigidity over longer overhangs.
- High-Capacity 2-Flute Geometry: Optimized chip gullets effectively clear chips and prevent packing in medium-depth pockets and ramping passes.
- 42CrMo Alloy Structural Steel Body: Vacuum heat-treated to HRC 45–48 for high torsional rigidity and superior chatter resistance under dynamic loads.
- 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-30-150-C25-2T
Pair this C25 medium-reach 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-30-150-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) | 150 mm | 5.906 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 150mm Medium Overhang)
| ISO Workpiece Material | Cutting Speed (Vc) | Feed per Tooth (fz) | Depth of Cut (ap) | Coolant Mode |
|---|---|---|---|---|
| Carbon Steel (P10–P25) | 160 – 230 m/min | 0.12 – 0.28 mm/z | 1.0 – 2.5 mm | Air Blow / Dry |
| Alloy / Mold Steel (P25–P35) | 120 – 180 m/min | 0.10 – 0.22 mm/z | 0.8 – 2.0 mm | Air Blow |
| Stainless Steel (M20–M35) | 85 – 140 m/min | 0.08 – 0.18 mm/z | 0.6 – 1.5 mm | Emulsion / High-Pressure Coolant |
| Cast Iron (K15–K30) | 130 – 190 m/min | 0.12 – 0.25 mm/z | 1.0 – 2.2 mm | Dry Milling |
4. Applications & Equipment Compatibility
Primary Milling Operations: Medium cavity roughing, high-wall face milling, die and mold 3D profiling, 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.
- 150mm Medium Reach Rigidity: Strikes the ideal balance between cavity reach and tool stiffness, minimizing deflection during high-feed milling.
- 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 150mm OAL provides sufficient clearance for medium-depth mold pockets and stepped components while maintaining significantly higher rigidity and lower chatter risk than extreme 200mm+ overhangs.
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 multi-axis machining.
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-C25-150-2T | Sandvik CoroMill 200 (30mm head / 150mm length) | Iscar DROPMILL 30mm Medium Shank.
• Chatter Reduction Tip: If harmonic resonance occurs during profiling, adjust spindle speed by ±10% to break up regenerative chatter frequencies.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.