Litz TM-2500/S/Stm High Precision CNC Machine with 220° B-Axis Rotation

Basic Info

1. Improve production efficiency: CNC lathe, vertical machining center, turning-milling compound machining center. One machine for all machining, with high cost performance. By shortening the machining time, production efficiency can be improved.
2. Reduce costs: Machine equipment investment cost, reduce machine floor space, reduce labor cost, reduce fixture cost, reduce power cost, reduce workpiece loading and unloading cost, reduce overall machining time, and reduce handling cost.
3. Reduce man-hours: The compound machine can achieve the investment effect of 2-axis lathe + machining center complementing each other. From raw materials to finished products, all processes can be completed by one machine, greatly reducing process steps and production time, and improving machining accuracy. Reduced fixture cost, fewer production equipment, and labor cost savings. As a result, production efficiency is greatly improved, costs are reduced, and profits are increased.
4. Improve accuracy: The high-precision and high-efficiency compound machining machine TM series features a design that reduces thermal deformation, has a small footprint, and is the best choice for machining small precision parts such as medical devices and measuring instruments that require high-precision and high-efficiency machining of complex-shaped workpieces. The machine tool structure adopts turning-milling compound technology to achieve high-precision one-time clamping machining. Through tool preparation and process reduction, the delivery time is greatly shortened, and it is a next-generation machine with high-precision, fixture reduction, labor cost savings, and space-saving performance and functions.
5. Technical highlights: Flexible machining in all directions, with a wide Y-axis stroke of ±125mm and a maximum machining diameter of Ø500mm. Optimal cutting conditions design, with one machine for simultaneous turning and milling, minimizing machining time, large machining range, and small interference area. Whether milling or turning, the highest machining efficiency can be achieved, with the same milling capacity as a machining center. Stable machining accuracy can be maintained for a long time with optional spindle thermal displacement compensation system, three-axis guide rod thermal temperature rise control system, and X/Y/Z-axis and B/C-axis optical scale system (optional). Simple first-piece machining shortens the production cycle with a user-friendly human-machine interface, easy operation, and standard configuration of Siemens operating system for reliable operation and reduced adjustment time. Maximize the machine tool capacity with Siemens controller for optimized machining conditions.
6. Stable basic structure: Orthogonal rail structure. The X, Y, and Z axes adopt an orthogonal rail structure to ensure high-precision machining of the machine. Powerful cutting spindle. The spindle cooling system prevents the spindle unit from thermal displacement caused by the heat generated by the bearings and built-in motor. At the same time, the thermally symmetric structural design controls the generation of thermal displacement and achieves long-term high-precision machining.
7. Ultra-wide B-axis rotation range of 220°: The ultra-wide 220° rotation range of the B-axis enables the spindle and sub-spindle (optional) to have the same machining area. In addition, the B-axis drive in the NC-B-axis specification adopts a 0.001° indexing accuracy, achieving high-precision 5-axis linkage.
8. High indexing accuracy of B and C axes: The high-precision and high-dynamic transmission system and high-precision optical scale configuration (OP) enable the B-axis to obtain high indexing accuracy. The first turning spindle is standardly equipped with a high-precision indexed high-precision C-axis, which can achieve high-precision machining of complex-shaped workpieces. The high-rigidity machine tool structure design can support high-precision and high-efficiency machining.
   |ISO Standard|TM-2500|LITZ STD. (Actual Value)|
   |---|---|---|
   |B-axis|Bidirectional positioning accuracy
   Unidirectional positioning repeatability (positive)
   Unidirectional positioning repeatability (negative)|14 seconds
   4 seconds
   4 seconds|4.61 seconds
   2.77 seconds
   2.42 seconds|
9. Tailstock system: The NC tailstock can adjust the thrust through program instructions, so the best thrust can be used for continuous machining from rough machining to finished product machining. The W-axis tailstock stroke is 910mm, which can handle long and short workpieces, expanding the machining range.
10. External chip conveyor: According to the chip shape and material, hinged type, hinged + scraper + cylindrical type are provided, and the appropriate chip removal method can be selected according to the machining type.

1. Powerful Turning Spindle and Milling Spindle: The first turning spindle of the TM series uses a built-in motor spindle with high torque and high power. The C-axis features a unique braking system and electromagnetic direct detector, achieving indexing accuracy comparable to that of a machining center. The high-torque built-in motor enables high-rigidity heavy cutting machining. The spindle has both turning and C-axis functions. Tool spindle indexing function: The tool spindle has a 90° indexing positioning structure, allowing the same turning tool to perform internal and external machining. Using a multi-head turning tool holder with 4 tools reduces the number of tool holders and shortens tool change time.
2. Automatic Tool Changer: The high-speed tool changer has a cam mechanical structure for fast and reliable tool changes, facilitating high-efficiency machining. The tool magazine unit has a standard capacity of 36T and an optional capacity of 72 tools. The tool magazine is located on the front of the machine for easy operator access to change and monitor tools.
3. Simplicity and Convenience: The machine design emphasizes simplicity and convenience from an ergonomic operator perspective. It features user-friendly design for easy tool and workpiece replacement, efficient tool preparation, a large window for observing machining conditions, an optional rotary CNC operating system, and an excellent spindle position with good accessibility.
4. Mechanical Maintenance Inspection and Repair: The machine's functional systems are centrally located on both sides for easy daily mechanical maintenance inspection and repair. Optional components include an oil mist recovery unit, spindle cooling system, hydraulic unit, air pressure and lubrication system, tool magazine unit, electrical unit, coolant system, chip conveyor system, and CTS unit.
5. Machining Stroke Range: The large axis stroke makes the machine easy to use and the operator confident. The wide machining area prevents machine interference during large workpiece machining, improves tool preparation, and boosts production efficiency. In the absence of interference, there is ample space for the spindle unit and tools.
6. Laser Detection: Each linear and rotary axis is laser-detected for error values, which are compensated by the NC system to achieve high-precision repeat positioning accuracy and ensure high-precision part machining.
7. Cooling of Three-axis Transmission Guide Rod: The three-axis transmission guide rod has a hollow cooling design with internal automatic cooling circulating oil to reduce heat generation and thermal expansion of the ball screw during high-speed operation, enabling high-speed and high-precision machining.
8. Power-saving Scheme for Composite Machining: Previously, machining complex-shaped workpieces required a CNC lathe and machining center. Now, the composite machining machine's efficient machining integrates processes, saving significant power energy. Process integration reduces equipment, shortens machining time, cuts power consumption, and lowers overall manufacturing costs (including tools, equipment, labor, and indirect costs).
9. Adoption of Energy-saving Design for Environmental Protection: Standard features include automatic internal lighting shutdown, automatic chip conveyor stop after program completion, heat exchanger activation only when the control box temperature reaches the set point, LED lighting, automatic work light shutdown when the door closes, M-code-controlled oil mist recovery system (M08/M09), automatic power-off, lubricant supply stop when the stroke axis stops, fully enclosed sheet metal design to reduce noise and oil/gas mist diffusion, direct drive design to reduce noise and kinetic energy loss, use of recyclable iron pallets for shipping, and a grease lubrication system.
10. Use of World-renowned Brand Products: The spindle bearing is SKF from Germany, the linear guide rail is THK from Japan, the ball screw is from HIWIN TECHNOLOGY/PMI from Taiwan, and the control system is Siemens. Note: The above suppliers are our company's regular partners. In case of supply issues, equivalent products will be substituted without compromising quality.