PHASE II H220-012 12" Horizontal Rotary Table

4 inches to 16 inches Phase II Precision Rotary Tables. These horizontal or vertical rotary tables from Phase II find applications in latest milling machining centres which is used for machining up to 5 faces of an workpiece using only one set-up. Superior grade mechanite casting provides the ultimate rigidity and is precision ground to meet the most exacting requirements. The high precision bearing surfaces insure ultra-smooth rotation. Phase II Indexing heads or Dividing Plates allow you to precisely divide a circle into a number of divisions or degrees. The indexing feature helps prevent errors during the repetitive adjustments required in indexing work. The dividing plate set is used to divide one 360° table rotation into divisions of 30'. The gear ratio of the compatible horizontal rotary table is 1:90. This means that 90 rotations of the handwheel rotate table one full rotation. Therefore for one full rotation of the table, the number of handwheel rotations per division "N" times the number of divisions "T" is equal to 90 rotations of the handwheel. So N x T= 90 or N = 90 ÷ T. Say for example, if 17 divisions are required for indexing on a workpiece, then T=21, so N= 90/17 =55/17 = 5 10/34. With 5 full handwheel rotations, 17 divisions are covered and the rest 10/34 by one handwheel rotation. The 10/34 of a handwheel rotation is obtained by using the dividing plates. The available models of dividing plate accessories & adjustable tailstock are compatible with Phase II horizontal rotary tables of sizes 8, 10, 12 inches. The annular holes as provided in the dividing plates permit the required number of divisions of one handwheel rotation. The weight of the dividing plate is about 5 lbs.

Benefits

• Ideal for applications where close tolerances are required.
• The engraved graduation eliminates erroneous readings.
• A convenient method of worm adjustment is provided to compensate for wear.
• The dividing plates have been provided with annular holes permitting the required number of divisions of one handwheel rotation.
• Each table is supplied with a signed inspection certificate and an operating certificate.
• Inexpensive option to MasterCAM for drawing up the hole pattern.

Applications

• Precision indexing table is designed exclusively for the miniature, desktop machine tool market.
• Great for the entire mini-manufacturing industry, including jewelers, gear makers, home hobbyists, etc.
• Indexing heads or Dividing Plates can be used on the tables of milling machines, drill presses, grinders, and boring machines.
• Machining curved surfaces by utilizing circular milling.
• Machining flat surface is set at a certain angle to a given reference.
• Typical use cases include machining the flutes of a milling cutter, cutting the teeth of a gear, milling curved slots, or drilling a bolt hole circle around the circumference of a part.
• Used in Quality control.
• Jig boring.

Features

• Adjustable satin chrome dials are extremely large in diameter for easy reading.
• All dials are precision ground and graduated in minute and second increments as well as degrees.
• Totally enclosed rugged base casting, precision ground and parallel within .0006 inch.
• (2) Locks provided for positive action.
• The worm and shaft are of one piece hardened and ground.
• All rotary tables are equipped with disengageable worms which affords quick rotation for indicating workpieces.
• Oiling facilities are provided for all moving parts.
• Low profile.

Turntable

• Made of "high grade mechanite castings".
• Precision ground and parallel within 0.0006 inch.
• All T-Slots are machined.
• Graduations are accurately cut in increments of one degree.

Optional Accessories

• Dividing plates have all divisions from 2 to 66 and all numbers from 68 to 132 that can be divided by 2, 3 and 5. Fits all except 6 inches.
• Second vernier: 10"
• Gear ratio: 90:1
• Adjustable tailstocks: 2 MT