Model | NC1250J B755 |
CNC system | Fanuc 0i TF |
Capacity | |
Max. swing over bed | Φ1250mm |
Max. swing over cross slide | Φ880mm |
Max. machining length | 1300/2800mm |
Distance between centers | 1500/3000mm |
Guideway width | 755mm |
Max. load capacity | 6000kg |
Spindle | |
Spindle bore | Φ130mm |
Spindle nose | A2-15 |
Spindle taper hole | 1:120 |
Spindle speed | 3.15-315r/min |
Carriage and drive | |
Torque of motor X axis | 20Nm |
Rapid traverse X axis | 3m/min |
Dia. & pitch of screw X axis | Φ40X6mm |
Torque of motor Z axis | 27kW |
Rapid traverse Z axis | 6m/min |
Dia. & pitch of screw Z axis | Φ63X10mm |
Turret | |
Turret type | 4 position |
Tool shank size | 40x40mm |
Crosswise travel of turret | 630mm |
Tailstock | |
Tailstock quill diameter | Φ160mm |
Tailstock quill taper | MT6 |
Tailstock quill travel | 300mm |
Others | |
Power source | 35kVA |
Coolant pump | AYB-25 (120W) |
Dimension | 4650/6150x2330x2160 |
Model | NC1250J B755 |
CNC system | Fanuc 0i TF |
Capacity | |
Max. swing over bed | Φ1250mm |
Max. swing over cross slide | Φ880mm |
Max. machining length | 1300/2800mm |
Distance between centers | 1500/3000mm |
Guideway width | 755mm |
Max. load capacity | 6000kg |
Spindle | |
Spindle bore | Φ130mm |
Spindle nose | A2-15 |
Spindle taper hole | 1:120 |
Spindle speed | 3.15-315r/min |
Carriage and drive | |
Torque of motor X axis | 20Nm |
Rapid traverse X axis | 3m/min |
Dia. & pitch of screw X axis | Φ40X6mm |
Torque of motor Z axis | 27kW |
Rapid traverse Z axis | 6m/min |
Dia. & pitch of screw Z axis | Φ63X10mm |
Turret | |
Turret type | 4 position |
Tool shank size | 40x40mm |
Crosswise travel of turret | 630mm |
Tailstock | |
Tailstock quill diameter | Φ160mm |
Tailstock quill taper | MT6 |
Tailstock quill travel | 300mm |
Others | |
Power source | 35kVA |
Coolant pump | AYB-25 (120W) |
Dimension | 4650/6150x2330x2160 |
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.