2STT52 Series CNC Turn-Mill Center | Machine Specifications and Tooling | YS
The 2STT52 is a high-performance dual-purpose Swiss-type and sliding-head CNC turn-mill center independently developed by Yih Chao Precision Machinery. It is equipped with a disk-type motor combined with direct-drive technology, delivering high rigidity, high torque, and low vibration performance. This effectively eliminates vibration, wear, and accuracy errors caused by traditional belt-driven systems.
The machine integrates the advantages of both sliding-head (Swiss-type) and fixed-head turning, allowing users to select either guide bush or non-guide bush machining modes depending on the workpiece requirements. It is suitable not only for long-bar and high length-to-diameter ratio parts, but also for general precision components covered by the 2ST36 series, significantly enhancing application flexibility and investment efficiency.
The X1 axis adopts a moving-column structural design, providing superior rigidity and stability during turning operations, which improves heavy cutting capability and machining accuracy. In addition, a roller-type chip conveyor system is integrated to efficiently collect chips and maintain clean cutting fluid, greatly reducing maintenance time for the coolant tank.
The 2STT52 is widely applicable in industries such as automotive components, medical devices, aerospace parts, electronics, and precision hardware. It is an ideal turn-mill solution that combines high precision, high efficiency, and versatile machining capabilities. Machine specifications, spindle capacity, tool-station layout and controller options are confirmed with the YS engineering team before the order is built.
2STT52 Series CNC Turn-Mill Center
The 2STT52 is a high-performance dual-purpose Swiss-type and sliding-head CNC turn-mill center independently developed by Yih Chao Precision Machinery. It is equipped with a disk-type motor combined with direct-drive technology, delivering high rigidity, high torque, and low vibration performance. This effectively eliminates vibration, wear, and accuracy errors caused by traditional belt-driven systems.
The machine integrates the advantages of both sliding-head (Swiss-type) and fixed-head turning, allowing users to select either guide bush or non-guide bush machining modes depending on the workpiece requirements. It is suitable not only for long-bar and high length-to-diameter ratio parts, but also for general precision components covered by the 2ST36 series, significantly enhancing application flexibility and investment efficiency.
The X1 axis adopts a moving-column structural design, providing superior rigidity and stability during turning operations, which improves heavy cutting capability and machining accuracy. In addition, a roller-type chip conveyor system is integrated to efficiently collect chips and maintain clean cutting fluid, greatly reducing maintenance time for the coolant tank.
The 2STT52 is widely applicable in industries such as automotive components, medical devices, aerospace parts, electronics, and precision hardware. It is an ideal turn-mill solution that combines high precision, high efficiency, and versatile machining capabilities.
Product Features
● Dual-Spindle and Twin Turret Configuration for Doubled Machining Efficiency
Equipped with high-performance front and rear dual spindles, the machine is paired with independently controlled upper and lower twin turret systems. The two turrets can simultaneously perform synchronized parallel machining on workpieces held by the main and sub spindles, or work in coordination on a single spindle for rough and finish turning operations. This maximizes the machine’s production capability and fully unleashes its machining potential.
● Multi-Station Multi-Axis Synchronized Cutting for Streamlined Machining Process
Integrated with a high-rigidity turn-mill live tool system, the machine enables seamless completion of turning, milling, drilling, eccentric machining, and tapping within a single setup. This eliminates the need for re-clamping between different machines, effectively preventing accumulated positioning errors and significantly improving geometric accuracy of the workpiece.
● High-Rigidity Structure for Heavy-Duty Cutting and Extreme Precision
The machine adopts a robust high-rigidity cast iron base and a solid structural design, delivering excellent vibration damping and thermal stability. It is capable of handling high-speed heavy cutting of various hard materials with ease, ensuring ultra-high repeat positioning accuracy and superior surface finish even during long-term continuous machining operations.
● Flexible Controller Configuration for Diverse Machining Requirements
The machine fully supports both SYNTEC and FANUC control systems, the two major mainstream CNC platforms. Depending on operator experience, legacy program compatibility, or automation peripheral integration requirements, the manufacturer can flexibly customize and configure the most suitable CNC control core to optimize production efficiency and system integration.
● Guide Bushing Machining
The guide bushing supports the bar stock during machining, effectively reducing vibration and deformation caused by cutting forces on slender workpieces. It is particularly suitable for high length-to-diameter ratio components, high-precision parts, and long, slender components, enabling superior dimensional accuracy and improved surface finish quality.
● Non-Guide Bushing Machining Mode
The non-guide bushing mode reduces the bar stock overhang length, effectively minimizing material waste and improving material utilization, thereby lowering production costs. It is particularly suitable for short workpieces and mass production of general precision components.
Specifications
| 2STT52 | |||
|---|---|---|---|
| Item | Unit | Main | Sub |
| Capability | |||
| Max bar processingg length | mm | 130 | |
| Max bar processing diameter | mm | Ø52 | |
| Axis | |||
| X-axial travel | mm | 180 | 490 |
| Y-axial travel | mm | 690 | 80 |
| Z-axial travel | mm | 385 | 485.5 |
| The fastest travel speed in the X axis | m/min | 20 | |
| The fastest travel speed in the Y axis | m/min | 20 | 5 |
| The fastest travel speed in the Z axis | m/min | 20 | |
| C-axis positioning accuracy | degree | 0.001 | |
| Spindel | |||
| Spindel nose | type | A2-6 / A2-5 | |
| Max spindel speed | rpm | 2500 | |
| Motor power | kw | 7.5 | |
| Motor torque | Nm | 48 | |
| Tool System | |||
| No. of O.D. tool | sets | 6 | 2 |
| O.D.tool size | mm | 25*1 / 20*4 | 16*2 |
| No. of I.D. tool | sets | 5 | 2 |
| I.D. tool size | mm | Ø25 | |
| No. of radial driven tool | sets | 6 | - |
| Collet size | type | ER-20 | |
| Max drill capability (power / fix) | mm | Ø10 / Ø12 | |
| Max mill tool size | mm | 13 | |
| Max radial driven tooling speed | rpm | 6000 | |
| No. of axial driven tool | sets | 6 | 4 |
| Collet size | type | ER-20 | |
| Max taping capability (power / fix) | mm | M8 / M12 | |
| Max axial driven tool speed | rpm | 6000 | |
| Controller | |||
| Taiwan SYNTEC | type | 220TB Plus | |
| Motor | |||
| X axis | kw | 1.7 | 1.1 |
| Y axis | kw | 1.1 | 1.1 |
| Z axis | kw | 1.1 | |
| Axis driven tooling | kw | 2.4 | |
| Radial driven tooling | kw | 2.4 | - |
| Coolant pump 1 | kw | 1.3 | - |
| Coolant pump 2 | kw | 1.3 | |
| Hydraulic pump | kw | 0.75 | |
| Chip conveyer | kw | 0.2 | |
| Lubrication pump | kw | 0.076 | |
| Tank | |||
| Hydraulic tank | L | 25 | |
| Lubrication tank | L | 4 | |
| Coolant tank | L | 350 | |
| Machine Dimension | |||
| L x W x H (include chip conveyer) | mm | 3850 x 1870 x 2105 | |
| Machine weight | |||
| Net weight (include chip conveyer) | KG | 5500 | |
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Equipped with FANUC CNC system.
Tooling for FANUC-controlled machines.
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2STT52 Series CNC Turn-Mill Center | YS Turn-Mill Machining Capability
2STT52 Series CNC Turn-Mill Center is designed and assembled by YS Precision Machinery for turning, milling, drilling and tapping on one machine, so a component moves from bar stock to finished part without transferring between separate turning and milling operations.
Before an order is confirmed, YS engineers check the relevant bar diameter, axis travel, spindle power, number of driven tool stations and collet type against the part drawing. Tooling layout is modular, which keeps changeover short and lets the tool package be revised for a different family of components later.
Machines are built on a cast iron structure for vibration damping, inspected in-house against YS quality procedures, and covered after delivery by installation, operator training and machining setup support.