Model | RD32x10 | RD40x10 |
Clamping type | Mechanical lock | |
Max. drilling capacity in steel / In cast iron | 32 / 40mm (1.26” / 1.57”) | 40 / 50mm (1.57” / 1.97”) |
Distance spindle axis to column generating line | 200-1000mm (7.9” – 39.4”) | |
Diameter of column | 240mm (9.4”) | |
Spindle taper | MT-4 | |
Spindle travel | 250mm (10”) | |
Spindle speeds range | 71-1800r/min | |
Spindle speeds steps | 8 | |
Range of Spindle feeds | 0.13-0.54mm/r | |
Spindle feeds steps | 4 | |
Max. distance spindle nose to working surface of base | 264-1064mm (10.4” – 42”) | |
Dimension of worktable | 400×450×400mm (16x18x16”) | |
Dimension of base | 1500×740×160mm (59x29x6.3”) | |
Overall size | 1730×750×2360mm | |
Power of main motor | 2.2kW | |
Gross weight / net weight | 1600/1530kg | |
Packing dimension | 1870x970x2200mm |
Model | RD32x10 | RD40x10 |
Clamping type | Mechanical lock | |
Max. drilling capacity in steel / In cast iron | 32 / 40mm (1.26” / 1.57”) | 40 / 50mm (1.57” / 1.97”) |
Distance spindle axis to column generating line | 200-1000mm (7.9” – 39.4”) | |
Diameter of column | 240mm (9.4”) | |
Spindle taper | MT-4 | |
Spindle travel | 250mm (10”) | |
Spindle speeds range | 71-1800r/min | |
Spindle speeds steps | 8 | |
Range of Spindle feeds | 0.13-0.54mm/r | |
Spindle feeds steps | 4 | |
Max. distance spindle nose to working surface of base | 264-1064mm (10.4” – 42”) | |
Dimension of worktable | 400×450×400mm (16x18x16”) | |
Dimension of base | 1500×740×160mm (59x29x6.3”) | |
Overall size | 1730×750×2360mm | |
Power of main motor | 2.2kW | |
Gross weight / net weight | 1600/1530kg | |
Packing dimension | 1870x970x2200mm |
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.