New NEXTURN SA-20XII | CNC Lathes

Description

Nexturn is the industry leader in Swiss type CNC lathes. Nexturn has many industry firsts, including the first to produce a 38mm CNC Swiss machine. The use of top quality components combined with cutting edge technology produces a state-of-the-art machine with industry leading performance. Nexturn machines use only the best components:

• Fanuc CNC controls and motors (Japan)
• NSK ballscrews and THK linear guideways (Japan)
• NSK bearings (Japan) and FAG bearings (Germany)
• KHK gears (Japan)
• Mayr couplings (Germany)
• CKD pneumatic valves (Japan)
• SMC pneumatic cylinders (Japan)
• Daikin hydraulic pump and valves (Japan)

The SA20XII is our high-level 20mm machine available with or without a rotary synchronous guide bushing. It features up to 9 total axes (Z1, X1, Y1, Z2, X2, Y2, C1, C2, and optional B) and up to 33 total tools with the B axis (29 without). Machining capacity is 20mm on the main spindle, 20mm on the sub spindle, and 210mm (8”) maximum turning length in one chucking (60mm or 2.36” without guide bushing).

The machine is built for rigidity, accuracy, reliability, and ease of use. The highly rigid one piece cast iron machine bed is designed using FEM software. Powerful motors for both turning and milling deliver outstanding machining capability. The use of ultra-precision pre-tensioned ballscrews and LM guides produce high accuracy. High speed positioning of 1260”/min reduces cycle times. A sliding operators door, as opposed to a lift up style door, provides easy access to the machining area and is drip free.

Spindles are the heart of the machine. The main spindle is a 5HP, 8000 RPM built-in motor spindle. The built-in motor provide outstanding acceleration / deceleration. The full Cs axis on both main and sub spindles with .001 degree position and pneumatic disc brake clamping provide high rigidity for milling operation. The synchronous sub spindle allows simultaneous front and back working to be performed.

Powerful live tools provide excellent milling ability. With 1.3HP and 6,000 RPM, a wide range of milling, drilling, and tapping can be performed. ER-16 collets (ER-11 for back tools on the optional B axis) for the live tools provide excellent rigidity. Rigid tapping is standard. The optional B axis provides 0 – 135 degrees of rotation with 3 front side and 3 back side live tools. The front side tools can be use for both front and face work, doubling the useful tools to 6 possible.

The synchronous rotary guide bushing features a dual bearing structure with high accuracy. It has strong and accurate bearing support on both ends. The guide bushing is spline shaft driven. The guide bushing is necessary for precision machining of long parts. The machine can be ordered without the guide for short parts, reduced remnant length, and the ability to run cold drawn material.