Extensions for Modular Boring System

Standard Extensions

Extensions for Modular Boring System Standard Extension Diagram

Part No.	D	d	L
P 22.20	22mm	12mm	20mm
P 22.30	22mm	12mm	30mm
P 27.30	27mm	15mm	30mm
P 27.45	27mm	15mm	45mm
P 32.35W	32mm	20mm	35mm
P 32.52W	32mm	20mm	52mm
P 42.40	42mm	24mm	40mm
P 42.60	42mm	24mm	60mm
P 54.50	54mm	28mm	50mm
P 54.75	54mm	28mm	75mm
P 68.60	68mm	36mm	60mm
P 68.90	68mm	36mm	90mm
P 85.70	85mm	50mm	70mm
P 85.105	85mm	50mm	105mm
P 100.80	100mm	60mm	80mm
P 100.120	100mm	60mm	120mm

Coolant Thru Spindle Extension

Part No.	D	d	L
P 22.30R	22mm	12mm	30mm
P 27.30R	27mm	15mm	30mm
P 32.35RW	32mm	20mm	35mm
P 42.40R	42mm	24mm	40mm
P 54.50R	54mm	28mm	50mm
P 68.60R	68mm	36mm	60mm
P 85.70R	85mm	50mm	70mm
P 100.80R	100mm	60mm	80mm

Couplings to match with coolant-feeding extensions must be ordered by adding "R" at the end of the part number.

Features

Exceed industry standards for taper accuracy and concentricity.
Two offset axial tapered locking screws maximize rigidity and allow fast tool changes.

Standard Extensions Diagram

Calculate needed extension length (L)
to achieve your boring depth (BD)

Coolant Through Spindle Extension

The coolant through spindle extension provides coolant to the cutting zone for optimal stock removal rates.

Minimum recommend coolant pressure is 70 psi. Coolant is directed onto cutting edge by adapter.

For best results use coolant whenever the material and machine permit. Make sure your coolant provides lubrication as well as cooling properties.

Coolant lowers the temperature at the cut extending insert life and allowing maximum speeds and feeds. Additionally coolant flushes chips away from the hole and lubricates the cutting action.

Key to Part Number Codes
Example: P 22 20 R

P = extension piece
22 = connection diameter
20 = extension length
R = coolant thru spindle style