NAREX VHU-160 Universal Boring & Facing Head Sets Automatic Boring Head

Carry Out the Most Accurate & Intricate Operations on Your Boring Machines with NAREX Universal Boring & Facing Heads. The Universal Boring & Facing Head in focus is one from NAREX Ltd. under its popular VHU series. These heads have the ability to extend the cutter out a bit with each rotation automatically and alternatively referred to as Automatic boring heads. Preferred over a standard, manually adjusted boring head, VHU boring and facing head offers an auto-feed that can be automatically set to advance the boring tool laterally. This allows it to be used in a wide range of applications including boring, turning, recessing of small & large diameter holes, taper cutting, thread cutting. Also suitable for precision boring of cylindrical holes and for machining of external cylindrical surfaces. Further, it is too easy to interpolate the hole to get it roughed out using a VHU series Automatic Boring Heads. Additionally, it is possible to bore tapered tools and cut tapered threads when automatic crossfeed to the tool slide is combined with feed to the spindle of the respective machine. The available feed on the respective machine will determine the included angle of the taper. The sliding feed is adjustable in three or four grades and is stopped on the adjustable dog by the pin clutch. The rotary motion of the head gives in the feed. The feed is adjusted when the pin of the clutch is put in and the brake ring is held by means of the stop bar. Quick adjusting of the side is by screw whereas the worm with the scale is used for fine adjusting of precision boring (1DIV= slide movement of 0.05mm). These heads are delivered with primary accessories in a sturdy box for safe storage. However, the taper shanks are not part of primary accessories and can be ordered separately depending on the special application. Narex Ltd. is carrying forward a century-old legacy in tool making and has evolved over these years to supply the industry with accurate tools. Narex Ltd. VHU series of Universal boring & facing head is subject to Czechoslovak patent No. 105957.

Benefits

• Automatic slide feed makes possible facing, back-facing, and taper machining.
• Allows for multi-tool boring.
• Advantage over manually adjusted boring heads such that auto-feed can be automatically set to advance the boring tool laterally.
• Automatic Boring Heads are preferred to improve the surface finish of the wall.

Applications

• Ideal for Boring in a wide range of diameters.
• Suitable for precision boring of cylindrical holes and for machining of external cylindrical surfaces.
• Turning internal and external surfaces by summing up the spindle feed with an automatic feed of the head.
• Also for Facing, Internal recessing, Recessing, Back facing, Boring of taper hole, Machining of external taper, Thread cutting.

Features

• Adjustable slide feeds in three or four grades.
• Guaranteed fast setting with ±.0002" accuracy.
• Heads can be safely rotated in either direction.
• Interchangeable shanks with short taper and flange connection for accuracy, power, and rigidity. However, Shanks is not included in the set.
• Available shank description: R8, 30/40/50 ISA Shanks & 2/4/5/6 Morse Taper Shanks.
• Lubrication is distributed from two points to all friction surfaces.
• Quality construction throughout with all parts hardened and precision ground for long life and extreme accuracy.
• Sturdy fitted case.
• Boring bars use CCMT 21.51 and TCMT 21.51 inserts.