Milling Head for 3PKT Inserts without Coolant / with Internal Coolant

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€68.38

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3PKT15-50-22-4T

3PKT15-63-22-5T

3PKT15-80-27-7T

3PKT15-100-32-8T

3PKT15-125-40-9T

3PKT15-160-40-12T

3PKT15-200-60-14T

3PKT15-50-22-4T

3PKT15-63-22-5T

3PKT15-80-27-6T

3PKT15-100-32-7T

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Product description

3PKT shell milling cutter — coolant configurations

1. Shell milling cutter for 3PKT inserts

This shell milling cutter uses replaceable 3PKT150508 inserts and FMB mounting. It is offered without internal coolant or with channels supplying coolant to the cutting head.

The body is made of 42CrMo alloy steel. Induction hardening provides hardness and resistance to deformation. Screws secure the inserts in their pockets.

Parameter	Information
Tool type	Shell milling cutter
Body material	42CrMo alloy steel
Heat treatment	Induction hardening
Insert	3PKT150508
Mounting	FMB, matched to the bore diameter

Cutting inserts are sold separately. Images show inserts fitted to illustrate their position in the pockets. This does not mean inserts are supplied with the body.

2. Applications and insert selection

This tool family is intended for roughing and finishing. Applications include face, shoulder and side milling. Compare the selected cutter geometry, mounting dimensions and insert type before making a selection.

Selection factor	Purpose
Body and mounting	Define the cutting diameter and the connection to the toolholder.
Replaceable insert	Its type must match the pocket of the selected body.
Insert grade and geometry	Selected for the workpiece material and type of operation.
Number of teeth	Specified in the designation and on the particular variant card.

The body code does not specify the insert grade. When purchasing inserts, consider the workpiece material and required operation; the cutter card identifies the matching insert type.

3. Coolant and configuration identification

Choose the coolant configuration separately from the cutting diameter. Cards for internal-coolant heads carry a clear label. Cards for heads without internal coolant identify that configuration in the tool-type heading.

Configuration	Identification	Selection
Without internal coolant	Configuration label on the cutter card.	Compare cutting diameter, FMB bore and tooth count.
With internal coolant	Configuration label.	Also check coolant supply through the appropriate mounting.

The size code alone does not always distinguish heads with and without internal coolant. Heads with the same diameter may also have different tooth counts. Compare the configuration heading and the complete variant card when choosing.

4. Dimensions and FMB mounting

Parameter	Range / meaning
Cutting diameter	Ø50–Ø200 mm, depending on configuration
Mounting bore	Ø22, Ø27, Ø32, Ø40 or Ø60 mm
Mounting	FMB22, FMB27, FMB32, FMB40 or FMB60
Head height	50 mm
Number of teeth	From 4 to 14, as specified on the selected configuration card

The listing diameter range does not mean that every coolant configuration is offered in every size. The selected variant defines the complete combination of cutting diameter, bore, tooth count and coolant arrangement.

Cutting diameter is different from mounting bore diameter. For example, FMB22 corresponds to a Ø22 mm bore, independently of the cutting diameter of the particular head.

Images are illustrative. Select the tool using the dimensions and designation of the chosen variant rather than proportions in the photograph. The variant card states the cutting diameter, head height, mounting bore and number of teeth.

5. Reading the cutter designation

Example: 3PKT15-80-27-6T. Read the designation together with the configuration label on the card.

Code element	Meaning in the example
3PKT15	Body family for 3PKT150508 inserts
80	Ø80 mm cutting diameter
27	Ø27 mm mounting bore / FMB27
6T	Six teeth

The number before T specifies the teeth on one body. It is not the number of heads or inserts included in an order. Check the configuration label for the coolant arrangement.

6. Inserts and pocket servicing

Component	Designation	Purpose
Insert	3PKT150508	Replaceable cutting edge for the head.
Insert screw	M4.5 × 10	Secures the insert in its pocket.
Key	T20	Operates the insert screw.

Accurate insert fit and seating are part of the cutter design. During servicing, check insert contact and the condition of the screw and pocket. Select the insert grade for the workpiece material and operation.

The M4.5 × 10 screw secures an insert rather than the complete head to its arbor. The insert screw designation and FMB bore describe two different connections.

Cutting inserts are sold separately. Images show inserts fitted to illustrate their position in the pockets. This does not mean inserts are supplied with the body.

7. Insert wear and machining checks

The condition of replaceable inserts affects part dimensions and surface quality. The following points distinguish common symptoms; process settings must be related to the workpiece material, insert and clamping rigidity.

Symptom	What to check
Gradual surface deterioration or dimensional change	Insert flank wear and cutting speed. For excessive wear, review the cutting parameters and insert grade.
Edge chipping	Insert selection, machining parameters, workpiece rigidity and correct insert clamping.
Sudden insert or tool failure	Insert seating, vibration, setup rigidity and loading from feed and cutting conditions.
Built-up edge and uneven surface	Cutting speed, feed and insert sharpness. Adjust parameters and cutting-edge geometry for the workpiece material.

Do not use one set of parameters for all workpiece materials and insert grades. T denotes the number of teeth, not a recommended spindle speed or feed.