一、Main differences:
Table size and stroke
T6：The workbench dimensions are 700× 420mm, and the X-axis travel is 600mm.
T7: Table size 800×420 mm, X-axis travel 700 mm (larger, suitable for longer workpieces).
The Y-axis (400 mm), Z-axis (350 mm) travel and maximum load (300 kg) are the same.
The distance from the end face of the spindle to the table
T6: 135-635 mm (wider range and greater adaptability).
T7: 145-495 mm (range is slightly smaller, but may have optimized rigidity).
Structural design
Both adopt high-strength lost foam casting technology, but the larger worktable and X-axis travel of the T7 may impose higher rigidity requirements on the base
Other parameters
The core parameters such as spindle speed (20,000 rpm), motor power (3.7 kW), tool magazine capacity (21 pieces), and repeatability (±0.005/300 mm) are completely consistent.
二、Respective advantages
Advantages of JW-T6:
Increased flexibility: The distance from the spindle face to the table is extended (135-635 mm) for workpieces with high height variations.
Compactness: The short X-axis travel (600 mm) makes it suitable for small and medium-sized workpieces with limited space.
Advantages of JW-T7:
Wider machining range: Larger table (800 mm) and X-axis travel (700 mm) for long workpieces or multi-station machining.
Potential rigidity optimization: Although the distance range between the spindle end faces is slightly smaller, the stability of heavy cutting may have been enhanced due to fine-tuning the structure.
三、Common advantages
High rigidity and high precision: All adopt THK ball screws, NSK/FAG bearings, and Taiwan SYNTEC systems to ensure motion accuracy and reliability.
High-efficiency spindle: 20,000 rpm BT30 spindle, supporting high-speed machining.
Intelligent configuration: It is equipped with 21 knife magazines, oil coolers, pneumatic systems, etc., which are suitable for automatic production.
四、Selection suggestions
Choose T6：Workpieces with large height changes or limited space need to be processed frequently。
Choose T7：Longer workpieces need to be processed or a larger worktable coverage range is pursued.
General Scenario：If there are no special requirements for the stroke, the performance of the two is similar, and the cost performance or delivery time can be prioritized.