Carbide cutting - Import export

Application The BDW is designed to reface the seating provided in the engine block for receiving the flange of the cylinder liner. Capacity Refacing diameter range 90-180mm Features Centering in the cylinder bore is automatically effected by simply turning the centering spindle. The studs at the engine block are used for rigidly clamping the BDW to the engine block. The seating is refaced to the preset depth by the simultaneous application of both a rotary and a transverse feed motion to the single point cutting tool. While the single point carbide cutting is rotated around the seating, a feed gear mechanism ensures a transverse feed motion. An adjustable depht stop makes sure that all seatings are cut to the same depth.

Working Principle: The counterbore is machined to the preset depth by the simultaneous application of both a rotary and vertical or horizontal feed motion to the carbide cutting insert. While the cutting insert rotates in a circle around the counterbore, a feed gear mechanism ensures a continuous feed motion. The lathe-type refacing action provides smooth and closely fitting contact surfaces for oversize valve seat rings. Features: The motor drive unit of the VD4HD-ADM is identical with the motor drive unit of the VD4HD Valve Seat Refacing Machine and, therefore, is only required, if no VD4HD is at hand. Two types of exchangeable boring gear heads are available. The standard AV boring head is provided with a vertical slide for counterboring. The optional AVH boring and facing head is provided with a vertical and a horizontal slide for counterboring and facing the bottom of the bore.