LPMW150412TR-A27 WKP25S Wendeplatten - Walter Tools

Take advantage of the combination of Tiger‑tec Silver coating, the WKP25S carbide grade and a compact rectangular geometry to secure stable chip control and predictable tool life in steel and cast‑iron milling. Order the insert through Metav Werkzeuge or consult their specialists for application support.

LPMW150412TR-A27 WKP25S milling insert – Tiger‑tec Silver coated, for steel & cast iron | Walter Tools

The LPMW150412TR-A27 WKP25S is a rectangular milling insert designed for high‑productivity machining of steel and cast iron, offering robust wear resistance and controlled chip formation.

• Tiger‑tec Silver coating for wear resistance
• WKP25S grade for steel and cast iron
• Rectangular form with 1.2 mm corner radius
• A27 chipbreaker for reliable chip control

Longer cutting edge life through a specialised coating

The Tiger‑tec Silver coating combined with the WKP25S coated carbide grade provides a significant improvement in abrasive and adhesive wear resistance compared with uncoated grades. This results in more consistent cutting forces during longer tool engagement and extended intervals between insert changes. For production environments where cycle times and repeatability matter, the coated grade reduces downtime and contributes to predictable component quality. The coating also supports higher cutting speeds where process stability allows, increasing throughput without compromising tool life.

Geometry engineered for surface quality and chip control

The rectangular shape and the A27 chipbreaker work together to promote stable chip formation when machining both steel (P) and cast iron (K). The 1.2 mm corner radius balances edge strength and surface finish; a larger radius improves edge robustness, while the chosen size maintains acceptable part tolerance and finish. The insert’s 11° relief angle helps avoid rubbing on the flank, which reduces heat transfer into the workpiece and supports consistent surface integrity. Explained simply: the chipbreaker redirects and breaks swarf reliably, reducing interruptions and the need for manual chip clearing.

Practical application guidance for efficient milling operations

This indexable insert suits general and semi‑finishing applications on unalloyed and alloyed steels as well as cast iron, in line with ISO 513 material groups P and K. The coated carbide construction is best used under stable clamping and appropriate coolant or lubrication strategies to exploit its wear resistance. Selection of cutting parameters should start conservatively and be raised as process stability is confirmed; the insert’s design enables process optimisation that often pays back through lower tool consumption and higher part throughput. For mixed production runs that include both steel and cast iron components, this grade offers a pragmatic balance between tool life and machining flexibility.

Contact Metav Werkzeuge for tailored machining recommendations and supply of Walter Tools Tiger‑tec Silver inserts; application engineers are available to advise on the optimal grade, insert geometry and cutting data for specific jobs

Technical data

• Article number: LPMW150412TR-A27-WKP25S-WALTER
• Designation: LPMW150412TR-A27
• Full designation: LPMW150412TR-A27 WKP25S
• Brand: Walter Tools

Key dimensions

• Plate size: 15 mm
• Thickness: 4 mm
• Corner radius: 1.2 mm
• Relief angle: 11°
• Tolerance class: M

Design & special features

• Series: Tiger‑tec Silver
• Grade: WKP25S (coated carbide)
• Shape: Rectangular
• Chipbreaker: A27
• Material suitability: P (steel), K (cast iron)

FAQ

What materials is this insert suitable for?
The insert is specified for machining steel (P) and cast iron (K) according to ISO classifications; the WKP25S grade is tuned for these material groups.

How does the Tiger‑tec Silver coating benefit production?
The Tiger‑tec Silver coating increases wear resistance and supports higher cutting speeds and longer tool life, which improves process stability and reduces insert changes.

What does the A27 chipbreaker do?
The A27 chipbreaker manages chip flow and promotes controlled breaking of swarf, reducing the risk of long chips and facilitating safer, uninterrupted milling.

Is the insert suitable for finishing or roughing?
The geometry and 1.2 mm corner radius make the insert suitable for both semi‑finishing and general roughing operations; selection depends on the specific surface finish and tolerance requirements.

Can the insert be used dry or with coolant?
The coated carbide grade performs well with coolant to extend tool life in demanding applications; dry machining may be possible depending on the workpiece material and cutting data but should be validated in trials.

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

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