China Top Machinetools

Dual Spindle CY-STC55/550 Series CNC Turret Lathe System

The machine bed features a one-piece cast bed with both side and rear chip removal options, and both guideways utilize high-rigidity roller guides. It offers high rapid traverse speeds, excellent dynamic response, and high precision retention.

The sub-spindle is a high-precision, high-rigidity synchronous servo direct-drive electric spindle. Direct-drive motor drive ensures zero transmission, resulting in low vibration, low noise, and minimal kinetic energy loss.

The basic layout utilizes two opposed spindles with an upper turret. Both the main and sub-spindles are equipped with C-axes and hydraulic locking. Workpiece indexing and surface interpolation machining can be performed on either spindle, effectively addressing the challenges of fast, efficient, and high-precision machining on both sides of parts.


Product Detail

Product Tags

item unit CY-STC55 CY-STC55m CY-STC55mY
Maximum Swing over bed mm φ550 φ550 φ550
Processing range
Maximum cutting diameter mm φ320 φ320 φ320
Maximum cutting length mm 450 450 450
     Spindle and Main Motor Spindle end type and code A2-6 A2-6 A2-6
Positive spindle
Spindle through hole diameter mm φ62 φ62 φ62
Maximum spindle speed r/min 3500 3500 3500
Rated power of main motor kW 11 11 11
Standard chuck diameter 8”-inch hollow 8”-inch hollow 8”-inch hollow
Spindle end type and code A2-5 A2-5 A2-5
Sub-spindle
Spindle through hole diameter mm φ56 φ56 φ56
Maximum spindle speed r/min 5000 5000 5000
Rated power of main motor kW 11 11 11
Chuck Standard chuck diameter 8 “hollow +6” -inch solid
Feed Axis XY/Z axis fast moving speed m/min 18、10、18
XY/Z/Z1 axis travel mm 235/-1550/550 235/-1550/550 235/±50/550/550
Guideway Type Rolling rail Rolling rail Rolling rail
Tool holder form Horizontal 12-station servo turret Horizontal 12-station power turret Horizontal 12-station power turret
Turret and tool holders
Outer circle knife mm 25X25 25×25 25×25
Tool size
Boring tool bar diameter mm φ40 φ40 φ40
Power head tool shank ER40 ER40
Maximum speed of power head r/min 4500 4500
Accuracy standard GB/T16462-2023 “Inspection Conditions for CNC Lathes and Turning Centers” standard