LNHU090408R-L55T WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of long tool life from the Tiger‑tec Silver coating, the material versatility of the WKP25S grade and the geometry‑driven chip control for stable, productive machining; order the insert directly via Metav Werkzeuge or consult our technical team for process optimisation.

LNHU090408R-L55T WKP25S milling insert for steel and cast iron by Walter Tools — Tiger‑tec Silver, 0° negative rake

A LNHU090408R-L55T WKP25S milling insert engineered for productive machining of steel and cast iron, designed to deliver stable cutting and consistent results in industrial milling applications

• Milling insert LNHU090408R-L55T WKP25S, Walter Tools
• Tiger‑tec Silver coating for extended tool life
• Suitable for steel (P) and cast iron (K)
• 0° negative rake; 0.8 mm corner radius
• Rectangular shape with L55T chipbreaker

Higher process reliability for steel and cast‑iron work

The combination of the Tiger‑tec Silver technology and the WKP25S grade offers a reliable basis for machining steel and cast iron according to ISO 513 classifications. The coated carbide substrate is optimised for the thermal and mechanical demands typical of these materials, which results in steadier cutting behaviour and predictable tool wear. The execution code U and the stated tolerance class H contribute to consistent seating and repeatable mounting in suitable cutter bodies, supporting uninterrupted production cycles and fewer tool changes.

Geometry that improves chip formation and surface outcomes

The rectangular plate format and the dedicated L55T chipbreaker work together to control chip shape and evacuation in interrupted and continuous cuts. A 0° negative rake decreases cutting edge exposure under high feed and heavy engagement, while the 0.8 mm corner radius balances edge strength with achievable surface finish. These geometric choices reduce the risk of edge chipping in demanding operations and help to maintain dimensional stability on machined components—advantages that are particularly relevant in medium‑ to high‑volume milling tasks.

Economical machining through wear resistance and consistency

The coating and grade combination is aimed at reducing overall tooling costs by extending the effective lifetime per indexable edge. With fewer unexpected replacements and stable cutting data, cycle times remain predictable and machine uptime improves. The insert’s design supports consistent surface quality on successive parts, which lowers rework rates and feeds directly into a better cost‑benefit ratio for production runs. This makes the component suitable where process economy and repeatability are priorities.

Shop‑floor integration and practical application notes

The insert code and dimensions (LNHU090408R‑L55T WKP25S) align with common Walter Tools pocket types and standard cutter bodies; match the plate thickness and seat geometry as specified by the toolholder manufacturer. The plate’s strengths lie in general steel and cast‑iron applications, where the coated grade stabilises edge life under varying cutting conditions. For specific machining strategies or to confirm cutter compatibility with a given toolbody, the operator may consult Metav Werkzeuge for tailored recommendations and process parameters.

Contact Metav Werkzeuge today to discuss how the Walter Tools LNHU090408R-L55T WKP25S insert can be integrated into existing milling systems and to request cutting data tailored to the intended application

Technical Data

• Article number: LNHU090408R-L55T-WKP25S-WALTER
• Item designation: LNHU090408R-L55T WKP25S
• Manufacturer: Walter Tools
• Product type: Milling insert (indexable insert)

Facts

• Corner radius: 0.8 mm
• Rake: 0° (negative)
• Plate size: 09
• Thickness code: 04
• Tolerance class: H

Special features

• Tiger‑tec Silver coated carbide grade WKP25S
• Suitable for steel (P) and cast iron (K)
• Chipbreaker: L55T
• Rectangular plate form
• Execution: U
• Series: Tiger‑tec Silver

FAQ

Which materials is this insert designed for?
The LNHU090408R‑L55T WKP25S insert is intended for machining steel (P) and cast iron (K) as defined in the product series and grade information.

What are the key geometry features to note?
The plate offers a 0° negative rake, a 0.8 mm corner radius and a rectangular form with an L55T chipbreaker, features that support robust cutting and controlled chip formation.

How does the Tiger‑tec Silver coating help production?
The Tiger‑tec Silver coating improves wear resistance and thermal stability of the cutting edge, which extends effective edge life and supports more consistent part quality over longer runs.

Is this insert compatible with standard Walter toolholders?
The designation aligns with common Walter Tools cutter pockets; compatibility depends on the specific cutter body—match the plate code and seat geometry when assembling.

What does the tolerance class H signify?
Tolerance class H indicates the manufacturing tolerance of the plate; it ensures predictable seating and repeatable positioning when installed in the correct toolholder.

Are there recommended application types for this insert?
The insert is suited for general milling tasks in steel and cast‑iron components, especially where a balance between edge strength and surface finish is required.

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

Protected trademarks and trade names remain the property of their respective owners. Brand names and protected product names are mentioned for clarification only. There is no affiliation between Metav Werkzeuge and the mentioned brands. The offered item is an original, factory‑new product of the manufacturer.