Kyocera CNMG120404GP CA125P TMK00073 - General CNC Turning
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- Stock: In Stock
- Model: CA125P
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: TMK00073
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Kyocera CNMG120404GP CA125P — Turning Insert
Product Overview
The Kyocera CNMG120404GP with grade CA125P (MPN: TMK00073) is a premium indexable carbide insert engineered for General CNC Turning. Manufactured in Japan to stringent ISO 9001 quality standards, this insert delivers exceptional cutting performance, dimensional stability, and extended tool life across general cnc turning applications. The GP - General Purpose geometry ensures optimal chip formation and evacuation, reducing machine downtime and improving surface integrity.
ISO Designation Breakdown
| Position | Code | Parameter | Specification |
|---|---|---|---|
| 1 | C | Insert Shape | 80° Rhombic (Diamond) |
| 2 | N | Clearance Angle | 0° (Normal) |
| 3 | M | Tolerance Class | ±0.08mm (IC), ±0.13mm (T) |
| 4 | G | Insert Type | Hole + Chipbreaker (One-sided) |
| 5–6 | 12 | Cutting Edge Length (IC) | 12.7mm (1/2") |
| 7–8 | 04 | Insert Thickness | 4.76mm (3/16") |
| 9–10 | 04 | Nose Radius | 0.4mm |
| 11+ | GP | Chipbreaker Style | GP - General Purpose |
Engineering Dimensions & Geometry
| Dimension | Metric | Imperial | Tolerance |
|---|---|---|---|
| Inscribed Circle (IC) | 12.7 mm | 1/2" | ±0.08 mm |
| Insert Thickness (S) | 4.76 mm | 3/16" | ±0.13 mm |
| Nose Radius (rε) | 0.4mm | 0.0157" | +0.10 / -0.05 mm |
| Clearance Angle (α) | 0° | 0° | ±0.5° |
| Inscribed Circle Diameter (d) | 12.7 mm | 1/2" | ±0.08 mm |
Grade Details — Key Grade Characteristics
| Property | Value / Description |
|---|---|
| Grade Designation | CA125P |
| Substrate Composition | Ultra-fine grain tungsten carbide (WC-Co) |
| Coating Technology | PVD Multi-layer (TiAlN + TiN) |
| Hardness (HRA) | HRA 91.5 |
| Transverse Rupture Strength | ≥ 2,800 MPa |
| Coating Color | Copper-Bronze |
| ISO Application Range | P15–P35, M15–M25, K15–K25 |
| Max Operating Temperature | 900°C (1,652°F) |
| Application Class | Semi-finishing to medium roughing |
Grade Comparison Matrix
| Grade | Coating | ISO Range | Best For | Speed Capability |
|---|---|---|---|---|
| CA125P | PVD TiAlN/TiN | P15-P35 / M15-M25 / K15-K25 | Steel, SS, Cast Iron | Medium-High |
| CA5525 | CVD Al₂O₃ + TiCN | P05-P25 | Steel, High-speed | High |
| PR930 | PVD TiAlN | P10-P30 / M10-M20 | General Steel | Medium |
| TN60 | Ceramic (Si₃N₄) | H01-H20 | Hardened Steel | Very High |
Chipbreaker Profile
The GP - General Purpose chipbreaker geometry is specifically engineered for general turning, continuous to light interrupted. The land width and groove depth have been optimized through finite element analysis (FEA) to provide stable chip curling and controlled breakage across the recommended parameter window. This reduces chip entanglement, protects finished surfaces, and extends tool life by minimizing thermal cycling at the cutting edge.
| Parameter | Range | Optimal |
|---|---|---|
| Depth of Cut (ap) | 0.10–1.20 mm | Mid-range |
| Feed Rate (fn) | 0.08–0.35 mm/rev | Mid-range |
| Chip Form | C-shaped / Short spiral | Controlled breakage |
Recommended Applications & Workpiece Materials
The CA125P grade combined with the GP - General Purpose geometry makes this insert highly versatile for the following material groups and industrial sectors:
- Carbon Steels (C15–C60, 1018–1060): Excellent balance of wear resistance and toughness for continuous and lightly interrupted cuts.
- Alloy Steels (4140, 4340, 8620): High crater wear resistance due to PVD coating; stable performance at elevated cutting temperatures.
- Stainless Steels (304, 316, 420): Reduced built-up edge (BUE) tendency; good surface finish on austenitic grades.
- Cast Irons (GG25, GGG40, GGG50): Reliable performance on both gray and ductile iron; minimal edge chipping.
- Tool Steels (D2, H13, O1): Suitable for pre-hardened and annealed conditions; not recommended for >45 HRC without adjusted parameters.
Application Map by Operation
| Operation | Suitability | Recommended ap | Recommended fn | Notes |
|---|---|---|---|---|
| External Turning | ★★★★★ | 0.10–1.20 mm | 0.08–0.35 mm/rev | Primary application |
| Internal Turning | ★★★★☆ | 0.10–1.20 mm | 0.08–0.35 mm/rev | Use appropriate boring bar |
| Face Turning | ★★★★☆ | 0.10–1.20 mm | 0.08–0.35 mm/rev | Ensure rigidity |
| Profiling | ★★★☆☆ | 0.05–0.50 mm | 0.05–0.15 mm/rev | Limited by nose radius |
| Grooving | ★☆☆☆☆ | — | — | Not recommended |
| Parting Off | ☆☆☆☆☆ | — | — | Not recommended |
Recommended Cutting Conditions
The following parameters are starting recommendations for the CNMG120404GP CA125P under stable machining conditions with adequate coolant delivery. Always optimize for your specific machine rigidity and workpiece setup.
| Workpiece Material | Brinell Hardness | Cutting Speed (m/min) | Feed (mm/rev) | Depth of Cut (mm) |
|---|---|---|---|---|
| Low-Carbon Steel (C < 0.25%) | 125–175 HB | 180–250 | 0.08–0.35 | 0.2–1.5 |
| Medium-Carbon Steel (0.25–0.55%) | 150–250 HB | 150–220 | 0.08–0.30 | 0.2–1.2 |
| Alloy Steel (Cr-Mo, Ni-Cr) | 180–280 HB | 120–180 | 0.08–0.25 | 0.2–1.0 |
| Stainless Steel (Austenitic) | 150–200 HB | 100–160 | 0.08–0.25 | 0.2–1.0 |
| Gray Cast Iron (HB 180–260) | 180–260 HB | 120–180 | 0.10–0.30 | 0.2–1.5 |
Operating Guidelines
- Run-out Check: Ensure insert seat run-out is <0.01 mm to prevent uneven wear and premature failure.
- Torque Specification: Tighten clamping screw to 2.5–3.5 N·m (22–31 in·lb). Over-tightening causes micro-cracking; under-tightening causes vibration.
- Coolant Recommendation: Use water-miscible cutting fluid at 6–8% concentration for steel and stainless steel. For cast iron, dry machining or minimum quantity lubrication (MQL) is acceptable.
- Entry Angle: Maintain a lead angle (κr) of 75°–95° for optimal chip control and reduced radial forces.
- Edge Preparation: This insert features a honed T-land (0.05 mm × 20°). Do not attempt additional hand-honing.
- Inspection: Inspect the cutting edge under 10× magnification after every 30 minutes of cutting time. Replace if flank wear (VB) exceeds 0.3 mm or if chipping >0.1 mm is observed.
Toolholder Compatibility
The CNMG120404GP conforms to ISO 1832 and is compatible with standard C-type (80° rhombic) toolholders. Select holder size to match the insert inscribed circle (IC) for proper clamping and chip evacuation clearance.
| Holder Style | Designation Example | Insert Size | Clamping | Application |
|---|---|---|---|---|
| External Turning | MCLNR/L 2525M12 | 12 (1/2") | Lever lock | OD turning, facing |
| Internal Boring | SCLCR/L 08 12 | 12 (1/2") | Screw clamp | Medium bore ID |
Packaging & Ordering Information
| Attribute | Details |
|---|---|
| Manufacturer Part Number (MPN) | TMK00073 |
| Standard Pack Quantity | 10 inserts per plastic box (industrial blister pack) |
| Individual Insert Marking | Laser-etched: CNMG120404GP + CA125P + batch code |
| Shelf Life (unopened) | 10 years when stored in original packaging at 15–25°C, <60% RH |
| Country of Origin | Japan |
| Warranty | Full manufacturer warranty against material and workmanship defects |
Catalog Meta Data
| Field | Value |
|---|---|
| Product Family | Kyocera Turning Inserts — CA Series |
| Series | C-Type (80° Rhombic) Negative Inserts |
| Grade Family | PVD Coated Carbide (CA125P) |
| Chipbreaker Family | GP - General Purpose |
| Insert Standard | ISO 1832:2017 / ANSI B212.4 |
| ECCN | EAR99 (General Industrial Use) |
| HS Code | 8209.00.00 (Indexable Inserts) |
| RoHS Status | Compliant (Directive 2011/65/EU) |
| REACH Status | Compliant (No SVHC >0.1% w/w) |
Need application support? Our CNC tooling specialists can help you select the optimal grade, geometry, and cutting parameters for your specific material and operation. Contact us via the support portal or live chat for technical assistance.
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
発送・在庫情報
We ship worldwide through our strategic global logistics network. Products are dispatched directly from our international distribution facilities to ensure efficient delivery and customs clearance.
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Stock Enquiries (在庫確認):
Contact our logistics team at sales.kyotow@gmail.com for real-time inventory status and dispatch location information. -
In-Stock Items (在庫あり):
Normally dispatched within 3 business days from the nearest regional warehouse. -
Factory Procurement (取寄せ):
Manufacturing and dispatch typically require 4–5 weeks. Once production begins, cancellations cannot be accommodated. -
Authenticity Guarantee (本物保証):
All products sold by Kyotow are 100% genuine and sourced through authorized Japanese and international distribution channels.
正確な製品情報
Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
返品・キャンセルポリシー
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
sales.kyotow@gmail.comDirect Supply Chain Transparency サプライチェーンの透明性
Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
Domestic Sourced
Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.
100% Genuine
Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.
No Regional Markups
We bypass Western corporate sales teams and localized regional overhead costs entirely.
