Model | Unit | FP-500STM | |
---|---|---|---|
Working range | Max. turning diameter over bed | mm | Φ680 |
Max. swing diameter over carriage | mm | Φ400 | |
Max. turning diameter | mm | Φ500 | |
Max. length between both chucks | mm | 690 | |
Max. turning and grinding length | 300 (disk type workpiece) | ||
Max. X/Z axis travel | X1/X3/ X5 axis | mm | 450/200/350 |
Z1/ Z3 axis | mm | 680/680 | |
Max. tailstock travel (Z5 axis) | mm | 680 | |
Feed screw | Control axis | mm | 10 Axis (X1+X3+X5+Z1+Z3+Z5+C1+C2+C3+C4) |
X1/X3 axis ball-screw | mm | 3210-C3 | |
Recommend the X1/X3 axis motor torque | Nm | ≥10 | |
X5 axis ball-screw | 4010-C3 | ||
Recommend the X5 axis motor torque | Nm | ≥15 | |
Z1/Z3/ Z5 axis ball-screw | 4010-C3 | ||
Recommend the Z1/Z3/ Z5 axis motor torque | Nm | ≥15 | |
Bed | Bed slant angle | 45° | |
Linear guide’s span | mm | 400 | |
Spindle | Max. Spindle speed | rpm | Main spindle: 4500; Sub-spindle: 4500 |
Spindle through-hole diameter | mm | Main spindle: Φ61; Sub-spindle: Φ61 | |
Spindle nose size | mm | Main spindle: A2-6; Sub-spindle: A2-6 | |
Recommend the spindle motor power | kW | Main spindle: 7.5; Sub-spindle: 7.5 | |
Hydraulic chuck or collet chuck | Main spindle: 8 inch; Sub-spindle: 8 inch |
Model | Unit | FP-500STM | |
---|---|---|---|
Working range | Max. turning diameter over bed | mm | Φ680 |
Max. swing diameter over carriage | mm | Φ400 | |
Max. turning diameter | mm | Φ500 | |
Max. length between both chucks | mm | 690 | |
Max. turning and grinding length | 300 (disk type workpiece) | ||
Max. X/Z axis travel | X1/X3/ X5 axis | mm | 450/200/350 |
Z1/ Z3 axis | mm | 680/680 | |
Max. tailstock travel (Z5 axis) | mm | 680 | |
Feed screw | Control axis | mm | 10 Axis (X1+X3+X5+Z1+Z3+Z5+C1+C2+C3+C4) |
X1/X3 axis ball-screw | mm | 3210-C3 | |
Recommend the X1/X3 axis motor torque | Nm | ≥10 | |
X5 axis ball-screw | 4010-C3 | ||
Recommend the X5 axis motor torque | Nm | ≥15 | |
Z1/Z3/ Z5 axis ball-screw | 4010-C3 | ||
Recommend the Z1/Z3/ Z5 axis motor torque | Nm | ≥15 | |
Bed | Bed slant angle | 45° | |
Linear guide’s span | mm | 400 | |
Spindle | Max. Spindle speed | rpm | Main spindle: 4500; Sub-spindle: 4500 |
Spindle through-hole diameter | mm | Main spindle: Φ61; Sub-spindle: Φ61 | |
Spindle nose size | mm | Main spindle: A2-6; Sub-spindle: A2-6 | |
Recommend the spindle motor power | kW | Main spindle: 7.5; Sub-spindle: 7.5 | |
Hydraulic chuck or collet chuck | Main spindle: 8 inch; Sub-spindle: 8 inch |
A knee type milling machine is a fundamental machine tool distinguished by its vertically adjustable worktable mounted on a "knee" casting. This knee moves precisely up and down a fixed column via a screw mechanism, enabling accurate Z-axis positioning crucial for diverse milling operations.
The core principle involves a rotating milling cutter removing material from a workpiece secured to the table. The adjustable knee mechanism allows controlled vertical movement (Z-axis), while the table provides longitudinal (X-axis) and transverse (Y-axis) travel. This 3-axis control facilitates complex machining of flat, angular, and contoured surfaces.
Since their development in the late 19th century, knee-and-column mills revolutionized machining. The iconic Bridgeport design (1938) popularized the turret style. While CNC machining centers dominate high-volume production, knee mills remain indispensable for flexibility, ease of use, and cost-effectiveness in job shops, schools, and repair facilities worldwide.
At Fortune Pacific, we engineer durable, high-precision knee type milling machines for demanding applications. Explore our range of vertical mills, horizontal mills, and CNC-ready models designed to enhance your workshop's capabilities. Discover the ideal machine for your metalworking, prototyping, or toolmaking needs.
Keywords: Knee Type Milling Machine, Vertical Milling Machine, Horizontal Mill, Turret Mill, Knee-and-Column Mill, Milling Machine for Sale, Industrial Milling, Metalworking Equipment, Workshop Machinery, CNC Mill, Toolroom Mill, Precision Machining, Fortune Pacific, Machine Tool Manufacturer.