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MFWN milling head for WNMU0806 inserts, clip-on shank, 90 degrees, without/with cooling

Kortools

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€53.82

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MFWN90050R-4T

MFWN90063R-5T

MFWN90080R-6T

MFWN900100R-7T

MFWN900125R-8T

MFWN900160R-10T

MFWN900200R-12T

MFWN900250R-14T

MFWN900315R-16T

MFWN900-50-22-4T with coolant

MFWN900-63-22-4T with coolant

MFWN900-63-22-5T with coolant

MFWN900-80-27-6T with coolant

MFWN900-100-32-7T with coolant

MFWN900-125-40-8T with coolant

MFWN900-160-40-10T with coolant

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Product description

MFWN 90° shell milling cutter for WNMU0806 inserts

Shell mounting • rough milling • versions without and with internal coolant

An MFWN shell milling cutter for rough machining, face milling, shoulder milling and rough side milling. The body takes replaceable inserts from the WNMU0806 family and has a 90° approach angle. Select the cutting diameter, number of insert pockets and coolant execution in the product variant selector.

The item sold is one cutter body without cutting inserts. Inserts are sold separately. Photographs with installed inserts show the assembled tool. Illustrative photographs represent the MFWN family; the selected variant designation and its information card state the specifications of that execution.

Applications

Operation	Application
Rough machining	Material removal with a cutter equipped with replaceable WNMU0806 inserts.
Face milling	Machining flat surfaces with the assembled cutter.
Shoulder milling	Machining stepped surfaces with a 90° approach-angle cutter.
Side milling	Rough side milling within the limits of the cutter and selected inserts.

The cutter is intended for carbon steel, stainless steel, cast iron and aluminium alloys with a suitable insert grade and cutting geometry. Choose the internal-coolant execution when the toolholder and machine can supply coolant through the tool.

Construction and insert system

The cutter uses double-sided WNMU0806 inserts with six cutting edges. Insert thickness is 8.5 mm. The working geometry of this system has a positive cutting angle. Inserts are secured by screws in pockets around the cutter body.

Feature	Meaning
Shell-mounted body	The cutter fits a suitable milling arbor through its central mounting bore.
Insert pockets	Their number depends on the cutter variant and is indicated by the number before T.
Double-sided insert	Six cutting edges refers to one insert, not to the number of cutter pockets.
Screw clamping	Each insert is seated in its own pocket and secured with an insert screw.

After one cutting edge wears, another edge of the same insert can be used. Machining suitability and cutting load also depend on the selected insert. Read the number of pockets from the variant designation separately from the number of usable edges on an individual insert.

Technical specifications

Parameter	Specification
Approach angle	90°
Insert system	WNMU0806
Insert execution	Double-sided, six cutting edges
Insert thickness	8.5 mm
Cutting diameters	Ø50–Ø315 mm, depending on execution
Number of insert pockets	4–16, depending on variant
Cutter mounting	Shell mounting through a central bore
Mounting bores for the specified Ø50–Ø250 executions	Ø22, Ø27, Ø32, Ø40 or Ø60 mm, depending on cutter diameter
Internal coolant	Without or with internal coolant, according to the selected variant
Maximum depth of cut ap	8 mm
Insert screw	M5x14
Insert-screw tightening torque	Approximately 4.2 Nm
Unit of sale	1 cutter body without cutting inserts

The value ap = 8 mm is the stated maximum depth of cut for the cutter. It is not a universal setting for every operation. Match actual cutting conditions to the insert, workpiece material, tool diameter and setup. Mounting-bore dimensions refer to the body connection, not to the cutting diameter.

Body executions and mounting diameters

Execution	Body material and hardness	Internal coolant
Standard Ø50–Ø250	42CrMoTi; body hardness 42–45 HRC	Without internal coolant
With internal coolant	SKD11; body hardness 45–48 HRC	Coolant passages within the cutter

The HRC values above refer to the cutter body. They do not specify insert hardness or an allowable workpiece-hardness limit. The standard body is hardened and its surface is ground. The WNMU0806 insert system is common to both executions.

Cutter cutting diameter	Mounting bore
Ø50 and Ø63 mm	Ø22 mm
Ø80 mm	Ø27 mm
Ø100 mm	Ø32 mm
Ø125 and Ø160 mm	Ø40 mm
Ø200 and Ø250 mm	Ø60 mm

This table covers the specified Ø50–Ø250 executions. It does not specify the mounting bore of the Ø315 variant. Confirm the mounting connection when selecting a larger cutter for an arbor. Cutting diameter and mounting-bore diameter are different dimensions and cannot be used interchangeably.

How to read the variant designation

The designation identifies the MFWN family, cutting diameter and number of insert pockets. Internal-coolant designations also state the mounting-bore diameter. The selector retains the code format for each execution, and the corresponding card states the same specifications.

Designation example	Meaning
MFWN900315R-16T	Cutting diameter Ø315 mm; 16 insert pockets; without internal coolant.
MFWN900-100-32-7T with coolant	Cutting diameter Ø100 mm; mounting bore Ø32 mm; 7 insert pockets; with internal coolant.

The number before T is the number of insert pockets in the cutter. It is not the package quantity or the number of cutting edges on one insert. Linear dimensions are in millimetres. In particular, the Ø315 variant has 16 pockets, while each double-sided insert provides six cutting edges.

Mounting, inserts and working components

Component	Specification	Purpose
Cutting inserts	WNMU0806; sold separately	Cutting elements seated in the body pockets.
Insert screws	M5x14	Securing inserts in the pockets; tightening torque approximately 4.2 Nm.
Shell-mill arbor	Matched to the cutter mounting bore	Connecting the cutter to the machine toolholding system.

When choosing an arbor, check the mounting bore of the selected body. When choosing an insert, check the WNMU0806 family, grade and cutting geometry for the workpiece material and operation. A photograph showing fitted inserts does not mean that inserts are supplied with the cutter.

Approximately 4.2 Nm applies to the screw securing the insert. It is not the tightening torque for securing the complete cutter to the arbor. The cutter-to-arbor connection has its own mounting requirements.

Selecting a cutter for the operation

Select the cutting diameter to suit the surface and planned operation.
Match the mounting connection by checking the central bore and corresponding arbor.
Select the coolant execution to suit the planned coolant-supply arrangement.
Select WNMU0806 inserts by workpiece material, insert grade and cutting geometry.
Select cutting conditions for the assembled cutter, taking account of diameter, pocket count and the maximum depth of cut ap = 8 mm.

An illustrative photograph shows the family construction. Select dimensions and pocket count from the variant designation and its information card. Where executions share the same diameter, also check the number before T and the internal-coolant information.

Frequently asked questions

Are inserts included?
No. The item sold is one cutter body. WNMU0806 inserts are sold separately, including when they are shown in a photograph.

Does 16T mean sixteen edges on one insert?
No. It means sixteen insert pockets in the body. Six cutting edges refers to one double-sided insert.

Does the Ø315 variant have internal coolant?
The Ø315 execution with 16 pockets is without internal coolant. Internal-coolant variants are separately identified in the selector.

Do all cutters have the same mounting bore?
No. The specified Ø50–Ø250 executions use Ø22, Ø27, Ø32, Ø40 or Ø60 mm bores, depending on diameter. Confirm the Ø315 mounting connection before selecting an arbor.

What do the 42–45 and 45–48 HRC values refer to?
The body hardness of the corresponding cutter execution, not the hardness of the workpiece.