- The tool offers the highest stability and length accuracy due to a special, ground profile connection on both ends between the tool body and insert holder.
- An additional insert holder is available for each head size, providing an extended boring range and more chip space when roughing blind holes.
- It includes a through-tool coolant supply, with adjustable coolant nozzles for sizes 53 and larger.
- ISO standard inserts are available in various shapes and geometries, suitable for all workpiece materials.
- The tool is designed for simple handling and features a compact design.
◆ General Characteristics
- The Series 315 TWN twin cutter boring heads are designed for heavy-duty rough boring and semi-finishing operations.
- Their compact, sturdy design and positive geometry allow almost chatter-free operation, even in interrupted cuts and at high cutting speeds.
- Twin cutter boring heads can outperform single cutter finishing heads by a factor of up to 4 times.
- Large stock allowances and high feed rates permit high production while assuring optimum bore roundness and location.
- These features are critical for meeting today’s tighter control of part geometry.
- In many cases, these tools can eliminate the need for semi-finishing cuts due to the superb balance of cutting forces, even under severe casting core shifts.
- Rough Boring Heads TWN 315 series tools use ISO standard inserts with positive cutting geometry to reduce cutting forces.
- The top clamp free mounting of the inserts and wide open chip spaces between the insert holders allow perfect chip formation and evacuation.
- Different grades and geometries of carbide and silicon nitride inserts are available to optimize application criteria.
◆ TWN 20
- With CKB1
- Boring Range: Ø.787″ – 1.220″
◆TWN 25
- With CKB2
- Boring Range: Ø.984″ – 1.575″
◆ TWN 32
- With CKB3
- Boring Range: Ø1.260″ – 2.008″
◆ TWN 41
- With CKB4
- Boring Range: Ø1.614″ – 2.598″
◆ TWN 53
- With CKB5
- Boring Range: Ø2.087″ – 3.386″
◆ TWN 68
- With CKB6
- Boring Range: Ø2.677″ – 4.331″
◆TWN 98
- With CKB6, CKB7 and CKN7
- Boring Range: Ø3.858″ – 6.024″
◆ TWN 98 L
- Long Version with CKB7 and CKN7
- Boring Range: Ø3.858″ – 6.024″
◆TWN 148
- With CKB6, CKB7 and CKN7
- Boring Range: Ø5.827″ – 8.000″