LNGX130730R-L55 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger·tec Silver coating and the WKP25S grade for stable chip control and long tool life; the 0° negative rake and 3 mm corner radius support heavy milling and consistent surface finish — order the insert directly via Metav Werkzeuge or contact our consultants for tailored recommendations.

LNGX130730R-L55 WKP25S — Indexable milling insert, 0° negative rake, 3 mm corner radius — Walter Tools

The LNGX130730R-L55 WKP25S is an indexable milling insert designed for productive machining of steel and cast iron in industrial milling applications

• Tiger·tec Silver coating for long tool life
• WKP25S coated carbide grade
• 0° negative rake for heavy cutting
• 3 mm corner radius, rectangular geometry

Improved productivity through optimised coating and grade

The combination of the Tiger·tec Silver coating and the WKP25S grade delivers a measurable boost in process stability. The coating reduces abrasive wear and supports higher cutting speeds, while the grade’s substrate ensures a robust cutting edge under thermal and mechanical load. For practical terms: this means longer intervals between index changes and fewer unplanned tool interventions, helping to keep machining cycles running predictably. The description of the cutting material as a coated carbide explains why heat resistance and edge stability are improved compared with uncoated grades.

Consistent chip control and surface quality for P and K materials

Engineered for ISO groups P (steel) and K (cast iron), the insert’s L55 chipbreaker geometry promotes controlled chip formation, reducing the risk of built-up edge and enhancing surface quality. The negative rake of 0° gives the insert strength for interrupted or heavy cuts, converting cutting forces into more stable machining conditions. Clarifying terms: a negative rake means the cutting edge is supported behind the cutting face, increasing robustness at the cost of slightly higher cutting forces — a trade-off that pays off in roughing and mixed-operation environments.

Rugged geometry that withstands demanding operations

The rectangular form with a 3 mm corner radius is optimised for load distribution and edge life when plunge milling or performing approach cuts. A larger corner radius reduces localised stress on the cutting edge and helps maintain dimensional stability on challenging workpieces. The insert thickness and form factor are selected for stiffness in the toolholder, which contributes to reduced vibration and consistent repeatability in series production.

Compatibility and selection advice for seamless integration

The indexable insert carries the ISO designation LNGX130730R-L55 WKP25S and a tolerance class of G, simplifying selection and machine programming. It is supplied in the Walter Tools Tiger·tec Silver family, known for wide material coverage and process security. When replacing inserts, match the chipbreaker and corner radius to the previous geometry to maintain cycle times and surface requirements. For bespoke recommendations on cutting parameters or holder compatibility, technical consultants at Metav Werkzeuge provide application-specific guidance.

Contact Metav Werkzeuge today for expert advice on selecting Walter Tools Tiger·tec Silver inserts and to ensure the best setup for efficient, repeatable milling operations

Technical data

• Article number: LNGX130730R-L55-WKP25S-WALTER
• Label: Fräswendeschneidplatte LNGX130730R-L55 WKP25S Walter Tools
• Manufacturer: Walter Tools / Walter Deutschland GmbH
• Product type: Indexable milling insert (Fräswendeschneidplatte)
• Series: Tiger·tec Silver
• Grade: WKP25S
• Execution: X
• ISO designation: LNGX130730R-L55 WKP25S

Facts

• Corner radius: 3 mm
• Free rake angle: 0° (negative)
• Plate size (length): 13 mm
• Plate thickness code: 07
• Tolerance class: G

Special features

• Coating: Tiger·tec Silver
• Material/substrate: Coated carbide
• Chipbreaker type: L55
• Insert shape: Rectangular
• Material applicability: Steel (P) and Cast iron (K)
• Suitable for heavy milling and interrupted cuts

FAQ

What materials is this insert suited for?
The insert is specified for machining steel (P) and cast iron (K), using the WKP25S grade and Tiger·tec Silver coating to manage typical chip and wear behaviours in these groups.

How does the 0° negative rake affect cutting performance?
A 0° negative rake increases edge strength and resistance to chipping during heavy or interrupted cuts; for this insert the geometry supports robust roughing passes and contributes to longer edge life.

What benefits does the Tiger·tec Silver coating provide?
The Tiger·tec Silver coating improves abrasive wear resistance and temperature stability, which helps to extend tool life and maintain consistent surface finish under higher cutting speeds.

How should the 3 mm corner radius be used in operation planning?
The 3 mm radius is suited to operations where edge strength and smooth load transfer are priorities; it reduces stress concentration on the cutting edge and is advantageous for roughing and general-purpose milling.

Is the LNGX130730R-L55 WKP25S compatible with standard toolholders?
The insert follows ISO designation conventions and tolerance class G, facilitating compatibility with matching Walter and standard toolholders designed for this insert family.

Manufacturer/Responsible: Walter Deutschland GmbH, Derendinger Straße 53, 72072 Tübingen, Germany

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