Iscar SUMOTEC vs SUMO TEC: Understanding Iscar’s Turning Platform Evolution
Iscar’s SUMOTEC turning system has been one of the most successful modular clamping platforms in the industry since its introduction. However, confusion persists between the original SUMO TEC (two words) and the current SUMOTEC (one word) product lines. While they share a common clamping concept, the platforms differ in insert size, clamping mechanism, and intended applications. This guide clarifies the differences and provides comprehensive grade and parameter data for both systems.
SUMO TEC: The Original Platform
The original SUMO TEC (introduced circa 2010) was designed as a compact turning system for small-to-medium components. It uses a lever-operated top clamp that secures the insert from above, providing excellent chip flow over the rake face without obstruction.
| Parameter | SUMO TEC |
|---|---|
| Insert sizes | IC 6.35mm (size 06), IC 9.525mm (size 09) |
| Insert shapes | CNMG, WNMG, DNMG, TNMG, VBMT, VCMT |
| Clamping method | Top-clamp lever |
| Shank sizes | 10×10, 12×12, 16×16, 20×20 mm |
| Turning diameter range | Ø5-40 mm (primarily Swiss and small CNC lathes) |
| Depth of cut max | 2.0 mm (size 06), 3.0 mm (size 09) |
| Feed range | 0.05-0.25 mm/rev |
| Primary application | Small part turning, Swiss-type lathes |
SUMOTEC: The Evolved Platform
The current SUMOTEC (introduced circa 2015) is a significantly expanded platform that covers medium-to-large turning operations. The key innovation is a dual-clamping system that combines top-clamp and side-lock for maximum insert security during heavy cuts.
| Parameter | SUMOTEC |
|---|---|
| Insert sizes | IC 9.525mm (09), IC 12.7mm (12), IC 15.875mm (15), IC 19.05mm (19) |
| Insert shapes | CNMG, WNMG, DNMG, SNMG, TNMG, plus proprietary SUMOTEC shapes |
| Clamping method | Dual clamp (top + side lock) |
| Shank sizes | 16×16, 20×20, 25×25, 32×32 mm |
| Turning diameter range | Ø15-300+ mm |
| Depth of cut max | 3.0 mm (size 09), 6.0 mm (size 15), 8.0 mm (size 19) |
| Feed range | 0.10-0.60 mm/rev |
| Primary application | General CNC turning, heavy-duty turning |
Key Differences Summary
| Feature | SUMO TEC (Original) | SUMOTEC (Current) |
|---|---|---|
| Target component size | Small (Ø5-40mm) | Medium to large (Ø15-300+mm) |
| Insert IC range | 6.35-9.525mm | 9.525-19.05mm |
| Clamping security | Top clamp only | Dual (top + side lock) |
| Maximum depth of cut | 3.0 mm | 8.0 mm |
| Holder shank range | 10-20mm | 16-32mm |
| Chip breaker options | 4 types | 8 types |
| High-pressure coolant | No | Yes (JETHP compatible) |
| Anti-vibration bars | Limited | Yes (WHISPERLINE compatible) |
Iscar Grade Portfolio for SUMOTEC Turning
| Grade | Coating | Substrate | HRA | ISO Range | Application |
|---|---|---|---|---|---|
| IC808 | TiCN + Al₂O₃ SUMO TEC CVD | Fine grain (0.8µm) | 91.5 | P15-P30 | Steel general purpose (most popular) |
| IC807 | TiCN + Al₂O₃ SUMO TEC CVD | Fine grain (0.8µm) | 92.5 | P05-P20 | Steel finishing |
| IC838 | TiCN + Al₂O₃ SUMO TEC CVD | Medium grain (1.5µm) | 90.5 | P25-P45 | Steel roughing |
| IC907 | TiAlN PVD | Fine grain (0.6µm) | 92.0 | P10-P25 / M10-M25 | Universal: steel and stainless |
| IC908 | TiAlN PVD | Fine grain (0.6µm) | 92.5 | P05-P20 / M05-M20 | Finishing: steel and stainless |
| IC3028 | TiAlN PVD (nano-layer) | Ultra-fine (0.4µm) | 93.0 | P05-P15 / M05-M15 | High-speed finishing |
| IC5500 | Al₂O₃ + TiCN CVD | Medium grain (1.5µm) | 91.0 | K10-K30 | Cast iron general |
SUMO TEC Grade Options (Small Part Focus)
| Grade | Coating | ISO Range | Application |
|---|---|---|---|
| IC908 | TiAlN PVD | P05-P20 | Small part steel finishing |
| IC907 | TiAlN PVD | P10-P25 | Small part steel general |
| IC908 | TiAlN PVD | M05-M20 | Small part stainless |
| IC208 | Uncoated polished | N05-N15 | Aluminum, copper, brass |
| IC808 | SUMO TEC CVD | P15-P30 | Small part steel general (larger IC 09) |
Cutting Parameter Guidelines: SUMOTEC
| Material | Grade | Insert | Vc (m/min) | f (mm/rev) | ap (mm) |
|---|---|---|---|---|---|
| S45C (1045) finishing | IC807 | CNMG120408 | 280-380 | 0.10-0.20 | 0.5-1.5 |
| S45C (1045) general | IC808 | CNMG120408 | 220-320 | 0.15-0.30 | 1.0-3.0 |
| S45C (1045) roughing | IC838 | CNMG150612 | 180-280 | 0.25-0.50 | 2.0-5.0 |
| SCM440 (4140) | IC808 | WNMG080408 | 180-280 | 0.15-0.30 | 1.0-2.5 |
| SUS304 (304SS) | IC907 | CNMG120408 | 140-220 | 0.12-0.25 | 0.5-2.0 |
| SUS316L (316L) | IC907 | CNMG120408 | 120-180 | 0.10-0.20 | 0.5-2.0 |
| FC300 (GG30) | IC5500 | CNMG120408 | 250-450 | 0.20-0.40 | 1.0-3.0 |
Iscar SUMOTEC Chip Breaker Guide
| Chip Breaker | Code | Application Range | Best For |
|---|---|---|---|
| Finishing | F2P | f 0.05-0.18, ap 0.3-1.2mm | Light finishing, precision |
| Medium-Finishing | FF | f 0.10-0.25, ap 0.5-2.0mm | Semi-finishing to finishing |
| Medium | M3M | f 0.15-0.35, ap 1.0-3.5mm | General purpose (most used) |
| Medium-Roughing | MR | f 0.20-0.45, ap 2.0-5.0mm | Medium to heavy cuts |
| Roughing | R5P | f 0.25-0.55, ap 3.0-8.0mm | Heavy roughing |
| Wiper Finishing | FW | f 0.10-0.30, ap 0.3-1.5mm | High-feed finishing, Ra < 0.4µm |
| Stainless Special | SM | f 0.10-0.30, ap 0.5-2.5mm | Stainless, gummy materials |
| Hard Material | HM | f 0.08-0.20, ap 0.3-1.5mm | Hardened steel >45 HRC |
Competitor Platform Comparison
| Platform | Iscar SUMOTEC | Sandvik Coromant | Kennametal | Mitsubishi |
|---|---|---|---|---|
| Clamping concept | Dual (top+side) | iLock (lever) | Top Lock | MS clamp |
| Insert size range | 09-19 | 06-25 | 09-25 | 09-22 |
| High-pressure coolant | Yes (JETHP) | Yes (CoroTurn) | Yes (Beyond) | Yes (JetCool) |
| Grade variety | 7+ turning grades | 12+ grades | 8+ grades | 10+ grades |
| Wiper inserts | Yes | Yes (Wiper) | Yes | Yes |
Key Takeaways
- SUMO TEC (two words) targets small-part turning on Swiss-type and small CNC lathes with IC 06-09 inserts
- SUMOTEC (one word) is the full-scale turning platform for standard CNC lathes with IC 09-19 inserts
- The SUMOTEC dual-clamping system provides superior insert security for heavy interrupted cuts
- IC808 with SUMO TEC CVD coating is Iscar’s most popular grade, covering P15-P30 with excellent versatility
- SUMOTEC’s JETHP compatibility enables high-pressure coolant turning with superior chip control and extended tool life
- For shops already using Iscar tooling, the SUMOTEC platform offers the widest grade and geometry selection within the Iscar ecosystem
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