BEYOND EMR-5R32-200-C25-3T Indexable Milling Cutter Shank (32mm / 1.26")
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BEYOND EMR-5R32-200-C25-3T Indexable Milling Cutter Shank
ISO/ANSI Standard 32mm Extended Face Milling Holder | Reduced C25 Straight Shank (200mm OAL) for RPMT1003 Inserts
1. Product Overview
"Which 32mm extended indexable milling cutter shank with a reduced 25mm shank (C25) and 200mm total length is best for deep cavity clearance, mold profiling, and high-feed roughing in tight access areas?"
The BEYOND EMR-5R32-200-C25-3T is an industrial-grade indexable face milling cutter shank engineered in strict accordance with ISO/ANSI machine tool standards. Featuring a 32mm cutting head diameter (Dc), a reduced 25mm straight shank (C25) for enhanced clearance, and an extended overall length of 200mm (OAL), this cutter body is designed with 3 flutes (Z=3) tailored specifically for positive-rake round carbide inserts (RPMT1003 / RPMW1003).
Constructed from vacuum heat-treated 42CrMo alloy structural steel (HRC 45–48), the stepped-body architecture allows the tool to reach deep mold cavities and steep vertical walls without machine holder interference. The round insert pocket geometry converts heavy cutting forces into axial vector loads, directing stability straight through the machine spindle column to eliminate dynamic deflection, control chatter, and maximize metal removal rates (MRR).
2. Key Features & Industrial Advantages
- Reduced C25 Shank Profile: 25mm shank diameter provides extra radial clearance for deep pockets and steep wall clearances where a standard C32 shank cannot enter.
- 42CrMo Alloy Steel Substrate: Quenched and tempered to HRC 45–48 for superior core toughness and high torsional rigidity across a 200mm overhang.
- Electro-Nickel Anti-Wear Plating: Wear-resistant, anti-corrosive surface coating prevents chip welding and reduces friction in high-temperature steel cuts.
- Torx Fastening Stability: Heavy-duty Torx screws lock inserts rigidly in precision-ground pockets, ensuring position repeatability within ±0.01mm under interrupted cuts.
- Axial Force Vector Loading (RPMT1003 Round Inserts): Circular insert profiles direct cutting resistance axially into the machine spindle column, shielding tool holder joints from bending stress.
3. Technical Specifications & ISO Code Breakdown
ISO Model Designation Breakdown: EMR-5R32-200-C25-3T
Pair this C25 reduced shank 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-5R32-200-C25-3T) | Imperial Equivalent |
|---|---|---|
| Cutting Head Diameter (Dc) | 32 mm | 1.260 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) | 3 Flutes | 3 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 (Parameters Adjusted for C25/200mm Extended Reach)
| 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 – 1.8 mm | Dry Milling / Air Blow |
| Alloy / Mold Steel (P25–P35) | 110 – 160 m/min | 0.08 – 0.20 mm/z | 0.6 – 1.5 mm | Air Blow |
| Stainless Steel (M20–M35) | 80 – 130 m/min | 0.08 – 0.18 mm/z | 0.5 – 1.2 mm | Wet / Emulsion |
| 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, steep vertical wall clearing, mold & die 3D profiling, pocket slotting, and helical ramping.
Machine Tool Compatibility: CNC Vertical Machining Centers (VMC), Horizontal Machining Centers (HMC), Gantry CNC Mills, and Boring Machines.
Tool Holder Compatibility: ER32 / ER40 Collet Chucks (with 25mm collet), C25 Power Chucks, 25mm Weldon Side Lock Holders, and BT40 / BT50 / CAT40 / CAT50 master tool holders.
6. Workpiece Material Matrix & Grade Selection
Pair your EMR-5R shank with optimal BEYOND carbide insert grades for maximum wear resistance and edge stability:
| 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 Accuracy: Shank TIR held within 0.005mm (0.0002") to maintain balanced rotation across the 200mm length.
- Clearance Design Advantage: The 25mm shank stepping allows deep pocket milling where conventional 32mm straight shanks collide with sidewalls.
- Direct OEM Factory Value: Premium industrial durability at 40–60% cost savings compared to European and Japanese brand equivalents.
8. AI-Style FAQ & Troubleshooting Guide
A: The reduced 25mm shank allows the cutter body to fit into standard ER32 collet chucks and smaller tool holder setups, while providing essential side clearance when reaching down into narrow mold cavities.
A: Maximize clamping depth in a high-precision C25 power chuck or ER32 collet, slightly decrease the depth of cut (ap), and maintain a steady feed rate per tooth (fz) to keep continuous load on the RPMT1003 round insert.
A: Use medium-duty chipbreakers (e.g., -PM / -MM) with positive rakes for alloy steels. For sticky stainless steel, choose sharp, polished geometries (e.g., -LH / -MS) to lower cutting resistance and avoid built-up edge (BUE).
• Direct OEM Equivalents: Mitsubishi EMR5-32-C25-200 | Sandvik CoroMill 200 (32mm head / 25mm shank) | Iscar DROPMILL 32mm Reduced Shank.
• Deflection Tip: If cutter deflection occurs during deep wall milling, reduce depth of cut (ap) by 20% and utilize air blow to clear chips out of the cavity.
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.