Kyocera RNMG090300 CA525 TAC04430 - Heavy Roughing & Contouring

Name: Kyocera RNMG090300 CA525 TAC04430 - Heavy Roughing & Contouring
Brand: Kyocera
Price: 3.21 USD
Availability: InStock

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Kyocera RNMG090300 CA525 TAC04430 - Heavy Roughing & Contouring

$3.21 USD

$5.36 USD

1 or more $3.21 USD

Stock: In Stock
Model: CA525
Weight: 0.10kg
Manufactured: In Japan
Ships: Worldwide
Item Code: TAC04430

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1. Product Overview

The RNMG090300 is a precision-engineered indexable carbide insert manufactured by Kyocera in Japan. Featuring the advanced CA525 CVD-coated grade and a Round Negative Insert geometry, this insert is optimized for Heavy Roughing & Contouring operations in steel and related materials.

With 4 usable cutting edges, the RNMG090300 delivers exceptional cost-per-edge economy while maintaining consistent dimensional accuracy and surface finish quality across high-volume production runs. The Standard chipbreaker geometry ensures reliable chip formation and evacuation, reducing downtime and improving process safety.

2. ISO Designation Breakdown

The RNMG090300 designation follows ISO 1832 standards for indexable inserts. Each position conveys critical geometric and functional information:

Position	Code	Meaning	Description
1st Letter	R	Insert Shape	Round Negative Insert
2nd Letter	N	Clearance Angle	N (0° relief)
3rd Letter	M	Tolerance Class	M-class
4th Letter	G	Fixing / Chipbreaker	G (Central hole + counterbore)
Size	9.525 mm	Inscribed Circle (IC)	Nominal diameter of inscribed circle
Thickness	3.18 mm	Insert Thickness (S)	Overall thickness of the insert
Radius	0.0 mm	Corner Radius (rε)	Nose radius for edge strength & finish
Suffix	Standard	Chipbreaker Style	Double-sided round geometry for maximum economy

3. Engineering Dimensions & Geometry

All dimensions conform to ISO 1832 tolerance classes. Measurements are taken at 20°C ±1°C.

Parameter	Value	Unit	Tolerance
Inscribed Circle (IC)	9.525	mm	±0.05
Insert Thickness (S)	3.18	mm	±0.05
Corner Radius (rε)	0.0	mm	±0.05
Hole Diameter (d1)	3.81	mm	+0.08 / 0
Relief Angle (α)	0	degrees	±1°
Rake Angle (γ)	-5 to -8	degrees	—
Cutting Edges	4	edges	—
Insert Weight (approx.)	0.8	g	—

4. Grade Details — Key Grade Characteristics

The CA525 grade belongs to Kyocera's CA5-series CVD-coated carbide family, specifically engineered for steel machining applications. It represents the general-purpose benchmark within the series, offering an optimal balance between wear resistance and fracture toughness.

Characteristic	CA525 Specification	Benefit
Coating Technology	CVD MEGACOAT TOUGH™	40% improved adhesion vs. conventional CVD
Coating Layers	TiN + Bonding + TiCN + α-Al₂O₃	Superior wear resistance & thermal stability
Substrate	Special carbide with high-temp deformation resistance	10% improved hardness at elevated temperatures
Surface Finish	Smooth & flat post-coating surface	Reduces cutting forces; prevents material welding
Color Code	Gold / Bronze (TiN top layer)	Easy visual identification in tool magazine
ISO Application Group	P15–P25 (Steel)	General-purpose steel machining grade

5. Grade Comparison Matrix

Understand where CA525 sits within the Kyocera CA5-series portfolio to select the optimal grade for your specific application:

Grade	Coating	Orientation	Best For	ISO Range
CA510	CVD (MEGACOAT)	Wear Resistance	High-speed continuous cutting	P05–P15
CA515	CVD (MEGACOAT)	Balanced	Continuous to light interrupted	P10–P20
CA525	CVD (MEGACOAT TOUGH)	General Purpose	General steel machining	P15–P25
CA530	CVD (MEGACOAT TOUGH)	Toughness	Heavy interrupted / high feed	P25–P35

6. Chipbreaker Profile

Standard Chipbreaker: Double-sided round geometry for maximum economy

The chipbreaker geometry has been optimized through finite element analysis (FEA) and extensive cutting trials to provide:

Controlled chip curling and breaking across the recommended feed range
Reduced cutting forces through smooth land transitions
Enhanced heat dissipation via optimized rake surface topography
Protection against built-up edge (BUE) formation in sticky materials
Consistent chip flow direction for safer automated machining environments

7. Recommended Applications & Workpiece Materials

The RNMG090300 with CA525 is primarily recommended for the following material groups and industrial sectors:

Material Group	Examples	Machinability	Recommended Use
Low-Carbon Steel	C15, C22, S235JR, 1015, 1020	★★★★★ Excellent	High-speed finishing & medium cutting
Medium-Carbon Steel	C45, C55, 1045, 1055, 42CrMo4	★★★★☆ Very Good	General turning & facing operations
High-Carbon Steel	C60, C70, 1060, 1095, 50CrV4	★★★★☆ Very Good	Medium cutting with stable parameters
Alloy Steel	34CrMo4, 20CrMo5, 17Cr3, 16MnCr5	★★★★☆ Very Good	Automotive & machinery components
Stainless Steel (Martensitic)	X6Cr13, X20Cr13, 410, 420	★★★☆☆ Good	Reduce Vc by 20–30%; wet cutting
Stainless Steel (Austenitic)	AISI 304, 316, 321	★★★☆☆ Good	Wet cutting mandatory; sharp edges
Cast Iron (Gray)	GG25, GG30, GJL-250, GJL-300	★★★☆☆ Good	Dry cutting acceptable; moderate speeds

8. Application Map by Operation

Suitability ratings for common turning operations using the RNMG090300 insert:

Operation	Suitability	Depth of Cut (ap)	Feed (f)	Notes
External Turning	★★★★★ Excellent	1.0–5.0 mm	0.15–0.50 mm/rev	Primary application
Internal Turning / Boring	★★★★☆ Very Good	1.0–5.0 mm	0.15–0.50 mm/rev	Use appropriate toolholder
Facing	★★★★★ Excellent	1.0–5.0 mm	0.15–0.50 mm/rev	Stable chip control
Profiling / Contouring	★★★★☆ Very Good	Light to medium	0.10–0.30 mm/rev	Radius-dependent finish
Cut-off / Grooving	★★☆☆☆ Limited	N/A	N/A	Not recommended

9. Recommended Cutting Conditions

Starting parameters for the RNMG090300 CA525. Adjust based on machine rigidity, workpiece condition, and desired tool life:

Workpiece Material	Cutting Speed Vc (m/min)	Feed f (mm/rev)	Depth of Cut ap (mm)	Condition
Low-Carbon Steel (C<0.25%)	180–350	0.10–0.35	0.5–3.0	Wet / Dry
Medium-Carbon Steel (0.25–0.60%)	150–300	0.15–0.40	0.5–4.0	Wet / Dry
High-Carbon Steel (>0.60%)	120–250	0.15–0.35	1.0–4.0	Wet recommended
Alloy Steel (42CrMo4, 20CrMo5)	120–280	0.15–0.40	1.0–4.0	Wet recommended
Stainless Steel (AISI 304/316)	100–180	0.12–0.30	0.5–3.0	Wet mandatory
Cast Iron (GG25/GG30)	100–200	0.15–0.40	1.0–5.0	Dry / Wet

Note: Values are starting recommendations. For interrupted cuts or scale-covered workpieces, reduce Vc by 15–25% and increase feed slightly for edge stability.

10. Operating Guidelines

Coolant: Use water-soluble coolant at 6–8% concentration for steel machining. For cast iron, dry cutting is acceptable. Always ensure adequate chip flushing.
Entry Strategy: Avoid direct plunge into workpiece. Use ramp entry or reduce feed by 50% for the first 2 revolutions.
Tool Overhang: Keep toolholder overhang to minimum (≤4× toolholder width) to prevent vibration and chatter.
Edge Preparation: Do not re-sharpen or re-coat inserts. CA525 is a single-use precision insert designed for indexable replacement.
Chip Control: If chips are too long or tangled, increase feed rate by 10–15% or verify coolant nozzle alignment (aim at cutting zone).
Insert Indexing: Always clean seat pocket before indexing. Torque clamping screw to manufacturer specification (typically 3.5–5.0 N·m).
Storage: Store in original packaging away from moisture and corrosive environments. Avoid contact between inserts to prevent edge chipping.
Speed Ramp: When starting a new batch, begin at lower Vc (80% of recommended) and ramp up to optimal based on tool life and surface finish.

11. Toolholder Compatibility

The RNMG090300 is designed for use with the following toolholder families:

Recommended: RN.. series round toolholders (negative rake), SR.. series for heavy roughing
Clamping: Lever-lock or screw-clamp systems with appropriate chipbreaker clearance
Seat Angle: Match toolholder seat angle to insert clearance angle (0°)
Insert Seat: Ensure pocket is clean, undamaged, and free of burrs before mounting
Coolant Delivery: Use toolholders with through-coolant capability for best chip control and tool life

12. Packaging & Ordering Information

Item	Details
Pack Quantity	10 pieces per pack
Packaging Type	Plastic blister pack with foam insert protection
Label Information	Model code, grade, MPN, batch number, barcode
Minimum Order	1 pack (10 pieces)
Bulk Pricing	Available for orders ≥50 packs. Contact sales for quotation.
Warranty	Full manufacturer warranty against material & coating defects

13. Catalog Meta Data

Meta Field	Value
Manufacturer	Kyocera Corporation (Japan)
Product Series	CA5 Series
Catalog / MPN	TAC04430
Country of Origin	Japan
Coating Origin	CVD coating applied in Japan
Quality Standard	ISO 9001, ISO 14001 certified manufacturing
RoHS Compliance	Compliant (2011/65/EU)
REACH Compliance	Compliant (EC 1907/2006)

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If you have any doubts regarding tool geometries, coatings, or application grades, please consult our support team at sales.kyotow@gmail.com before finalizing your procurement.

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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。

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Tags: RNMG090300 , CA525 , TAC04430 , Round Insert , Kyocera , CA525 , CNC Turning , Standard , IC 9.525mm , Heavy Roughing-Contouring

Kyocera RNMG090300 CA525 TAC04430 - Heavy Roughing & Contouring

International Shipping Note

1. Product Overview

2. ISO Designation Breakdown

3. Engineering Dimensions & Geometry

4. Grade Details — Key Grade Characteristics

5. Grade Comparison Matrix

6. Chipbreaker Profile

7. Recommended Applications & Workpiece Materials

8. Application Map by Operation

9. Recommended Cutting Conditions

10. Operating Guidelines

11. Toolholder Compatibility

12. Packaging & Ordering Information

13. Catalog Meta Data

Shipping & Stock Information │ 発送・在庫情報

Product Images & Technical Accuracy │ 正確な製品情報

Refund & Cancellation Policy │ 返品・キャンセルポリシー

Payments & Security │ 安全な決済方法

Fast & Reliable Worldwide Shipping │ 国際スピード郵便

Direct Supply Chain Transparency サプライチェーンの透明性

Domestic Sourced

100% Genuine

No Regional Markups

Information

My Account Information

Customer Service