The BTA Model 120 Series Pressure Head is used with rotating tools and stationary workpieces. This design requires the workpiece to be externally fixtured.

The 120 series is produced in a range of sizes:

• Model 120: 0.437 - 2.000"
• Model 124: 0.614 - 3.000"
• Model 125: 0.708 - 2.676"
• Model 126: 2.677 - 6.377"
• Other sizes also available

The BTA Model 200 Series Pressure Head is used with steady rest-supported workpieces and stationary or counter-rotating tools. It provides an end-face seal for the coolant via an annular synthetic ring.

The 200 series is produced in a range of sizes:

• Model 203: 0.708 - 1.455"
• Model 204: 1.181 - 2.677"
• Model 205: 2.244 - 3.897"
• Model 206: 3.187 - 5.866"
• Model 207: 5.866 - 9.685"
• Model 208: 9.214 - 14.409"
• Other sizes also available

The BTA Model 210 Series Pressure Head is used with rotating workpieces and a stationary or counter-rotating tools. The pressure head provides a live center for the workpiece and is self-locating with a fast setup time. The workpiece must be accurately faced and chamfered to seal properly.

The 210 series is produced in a range of sizes:

• Model 213: 0.708 - 1.456"
• Model 214: 1.338 - 2.677"
• Model 215: 1.850 - 3.897"
• Model 216: 3.189 - 5.866"
• Model 217: 5.866 - 9.685"
• Model 218: 9.212 - 15.353"
• Other sizes also available

The BTA Model 230 Series Pressure Head is used with rotating workpieces and a stationary or counter rotating tools. The pressure head supports the workpiece with a built-in three jaw chuck and can handle cylindrical and non-cylindrical workpieces.

The 230 series is produced in a range of sizes:

• Model 235: 0.984 - 3.150"
• Model 236: 1.732 - 5.433"
• Model 237: 4.843 - 9.842"
• Model 238: 9.000 - 14.500"
• Other sizes also available

The BTA Model 240 Series Pressure Head is used with nonsymmetrical or cylindrical parts where only the tool rotates. The pressure head is designed for heavier, bulkier workpieces. The 240 series can also facilitate BTA Multi-Cutter Pull Boring and Skive-Bur-Izing operations.

The 240 series is produced in a range of sizes:

• Model 245: 1.500 - 3.250"
• Model 246: 2.500 - 7.000"
• Model 247: 5.000 - 11.500"
• Other sizes also available

The BTA Model 330 Series Pressure Head is used with rotating workpieces and a stationary or counter rotating tools. The pressure head provides a live center for the workpiece and is self-locating. The facing of the workpiece is not as critical as with the Model 210 Series.

The 330 series is produced in a range of sizes:

• Model 334: 0.708 - 1.455"
• Model 335: 1.456 - 2.676"
• Model 336: 2.677 - 6.378"
• Model 337: 4.843 - 8.739"
• Model 338: 8.740 - 14.409"
• Other sizes also available