BEYOND EMR-5R-20-200-C20-2T Indexable Milling Cutter Shank (20mm / 0.79" Shank)
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BEYOND EMR-5R-20-200-C20-2T Indexable Milling Cutter Shank
ISO/ANSI Standard 20mm Face Milling Tool Holder | Long-Reach C20 Straight Shank (200mm OAL) for RPMT1003 Inserts
1. Product Overview
"Which 20mm indexable milling cutter shank with a 200mm overall length and C20 straight shank provides deep cavity reach and chatter suppression for narrow profiling?"
The BEYOND EMR-5R-20-200-C20-2T is an industrial-grade, ultra-long-reach indexable face milling cutter shank engineered in strict compliance with international ISO/ANSI machine tooling standards. Featuring a 20mm cutting diameter (Dc), a 20mm straight shank (C20), 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 structure incorporates precision-engineered chip flutes to promote efficient chip evacuation in deep mold pockets and narrow slots. The circular geometry spreads cutting forces uniformly, damping harmonic vibration and preventing tool deflection across carbon steel, alloy steel, and stainless steel applications.
2. Key Features & Industrial Advantages
- Extended 200mm Overhang Reach: Purpose-built for deep mold cavity roughing, narrow pocket milling, and long-reach profiling.
- Optimized 2-Flute Chip Flow: Wide chip pockets facilitate smooth evacuation and reduce thermal build-up during extended-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-5R-20-200-C20-2T
Pair this C20 ultra-long-reach cutter body with our matching C20 power collet chucks.
Explore C20 Tool Holders & Chucks →
Metric vs. Imperial Technical Comparison
| Specification | Metric Model (EMR-5R-20-200-C20-2T) | Imperial Equivalent |
|---|---|---|
| Cutting Head Diameter (Dc) | 20 mm | 0.787 in |
| Shank Diameter (d) | 20 mm Straight Shank | 0.787 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) | 110 – 160 m/min | 0.08 – 0.15 mm/z | 0.4 – 1.5 mm | Air Blow / Dry |
| Alloy / Mold Steel (P25–P35) | 80 – 130 m/min | 0.06 – 0.12 mm/z | 0.3 – 1.0 mm | Air Blow |
| Stainless Steel (M20–M35) | 60 – 100 m/min | 0.05 – 0.10 mm/z | 0.3 – 0.8 mm | Emulsion / High-Pressure Coolant |
| Cast Iron (K15–K30) | 100 – 140 m/min | 0.08 – 0.15 mm/z | 0.4 – 1.5 mm | Dry Milling |
4. Applications & Equipment Compatibility
Primary Milling Operations: Ultra-deep pocket roughing, narrow slotting, complex mold contouring, and extended reach profiling.
Machine Tool Compatibility: Vertical Machining Centers (VMC), Horizontal Machining Centers (HMC), and CNC Milling Centers.
Tool Holder Compatibility: C20 Power Collet Chucks, C20 Side Lock Holders, and BT30 / BT40 / CAT40 / HSK63A master holders via precision reduction sleeves.
6. Workpiece Material Matrix & Grade Selection
Pair your EMR-5R-20 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 reduced harmonic chatter.
- Optimized 200mm Length Rigidity: Engineered specifically to maximize deep cavity reach while retaining structural stability.
- 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 20mm diameter allows tight clearance inside restricted slots while the 200mm length reaches deep into complex cavity structures.
A: Round geometry eliminates fragile corners, distributing cutting forces uniformly to minimize chatter during extended-reach machining.
A: Reduce axial depth of cut (ap), decrease feed per tooth by 10-15%, ensure secure chuck gripping, and utilize climb milling.
• Direct OEM Equivalents: Mitsubishi EMR5-20-C20-200-2T | Sandvik CoroMill 200 (20mm head / 200mm length) | Iscar DROPMILL 20mm Long Shank.
• Chatter Mitigation Tip: If harmonic chatter occurs, adjust spindle RPM and verify collet chuck clamping torque to eliminate micro-slippage.
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.