Model | D1000 | D1250 | D1400 | D1600 |
---|---|---|---|---|
Type | W780 | W780 | W780 | W780 |
Swing over bed | Ø1000mm (39'') | Ø1250mm (49'') | Ø1400mm (55'') | Ø1600mm (63'') |
Swing over cross slide | Ø620mm (24.4'') | Ø870mm (34'') | Ø1000mm (39'') | Ø1200mm (47'') |
Max. length of workpiece | 1500-12000mm (59''-472'') | |||
Max. weight of workpiece | 8000kg | |||
Bed width | 780mm (31'') | |||
Spindle bore | Ø130mm | |||
Spindle taper | Metric 140mm | |||
Spindle speed range | 3.15-315 or 2.5-250rpm | |||
Spindle speed step | forward 21 steps, reverse 12 steps | |||
Metric threads | 1-120mm /44kinds | |||
Inch threads | 1/4-24TPI /31kinds | |||
Module threads | 0.5-60mm /45kinds | |||
Diametral threads | 1/2-56DP /38kinds | |||
Longitudinal feed | 0.1-12mm/r /56kinds | |||
Cross feeds | 0.05-6mm/r /56kinds | |||
Rapid feed (longitudinal/cross) | 3400/1700mm/min | |||
Distance between center and tool | 48mm(1.9’’) | |||
Size of tool shank | 45x45(1.8''x1.8'') | |||
Travel of cross slide | 650mm (25.6'') | |||
Travel of compound rest | 280mm (11’’) | |||
Diameter of tailstock sleeve | 160mm (6.3'') | |||
Taper hole of tailstock center | Metric 80 | |||
Travel of tailstock sleeve | 300mm (11.8'') | |||
Main motor power | 22kW | |||
Coolant pump motor power | 0.15kW | |||
Rapid feed motor power | 1.5kW |
Model | D1000 | D1250 | D1400 | D1600 |
---|---|---|---|---|
Type | W780 | W780 | W780 | W780 |
Swing over bed | Ø1000mm (39'') | Ø1250mm (49'') | Ø1400mm (55'') | Ø1600mm (63'') |
Swing over cross slide | Ø620mm (24.4'') | Ø870mm (34'') | Ø1000mm (39'') | Ø1200mm (47'') |
Max. length of workpiece | 1500-12000mm (59''-472'') | |||
Max. weight of workpiece | 8000kg | |||
Bed width | 780mm (31'') | |||
Spindle bore | Ø130mm | |||
Spindle taper | Metric 140mm | |||
Spindle speed range | 3.15-315 or 2.5-250rpm | |||
Spindle speed step | forward 21 steps, reverse 12 steps | |||
Metric threads | 1-120mm /44kinds | |||
Inch threads | 1/4-24TPI /31kinds | |||
Module threads | 0.5-60mm /45kinds | |||
Diametral threads | 1/2-56DP /38kinds | |||
Longitudinal feed | 0.1-12mm/r /56kinds | |||
Cross feeds | 0.05-6mm/r /56kinds | |||
Rapid feed (longitudinal/cross) | 3400/1700mm/min | |||
Distance between center and tool | 48mm(1.9’’) | |||
Size of tool shank | 45x45(1.8''x1.8'') | |||
Travel of cross slide | 650mm (25.6'') | |||
Travel of compound rest | 280mm (11’’) | |||
Diameter of tailstock sleeve | 160mm (6.3'') | |||
Taper hole of tailstock center | Metric 80 | |||
Travel of tailstock sleeve | 300mm (11.8'') | |||
Main motor power | 22kW | |||
Coolant pump motor power | 0.15kW | |||
Rapid feed motor power | 1.5kW |
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.