| Items | BF40P |
| Capacity | |
| Max swing over bed | Ø400mm |
| Max swing over cross slide | Ø200mm |
| Max machining diameter | 400mm |
| Distance between centers | 710/960/1460/1960mm |
| Max machining length | 570/820/1320/1820mm |
| Bed width | 390mm |
| Spindle | |
| Spindle nose | A2-8 (or D8) |
| Spindle bore | Φ77mm |
| Step of spindle speed | 3 steps |
| Range of spindle speed | 21-210/66~660/162~1620 r/min |
| Spindle motor power | 7.5kW |
| Travel and rapid traverse | |
| X axis travel | 275mm |
| Z axis travel | 650/900/1400/1900mm |
| X axis rapid traverse speed | 6m/min |
| Z axis rapid traverse speed | 8m/min |
| Turret | |
| Number of tool station | 4-position |
| Tool cross section | 25x25mm |
| Tailstock | |
| Tailstock sleeve diameter | Φ75mm |
| Tailstock sleeve travel | 150mm |
| Tailstock sleeve taper (manual) | MT-5 |
| Others | |
| Overall dimensions (L×W×H) | 710mm:2250 ×1370×1690mm 960mm:2500 ×1370×1690mm 1460mm:3000 ×1370×1690mm 1960mm:3500 ×1370×1690mm |
| Net weight | 2050/2100/2150/2200kg |
| Item 01 | Descriptions | |
| 01.01 | FANUC Oi TF | |
| 01.02 | FANUC motor of X/Z axis | |
| 01.03 | Inverter spindle motor | |
| 01.04 | 3-Jaw manual chuck 250mm | |
| 01.05 | Manual tailstock | |
| 01.06 | 4-station electric tool post | |
| 01.07 | Coolant system. | |
| 01.08 | Lubrication system | |
| 01.09 | Working light |
| Item 02 | Descriptions | |
| 02.01 | SIEMENS CNC system | |
| 02.02 | 3-Jaw 10 inch Hollow hydraulic chuck | |
| 02.03 | 3-Jaw 10 inch Solid hydraulic chuck | |
| 02.04 | 6-station electric tool post; | |
| 02.05 | Hydraulic tailstock |
This lathe is an easy-operated CNC lathe driven by a 7.5KW main motor. Either 4-station turret (standard equipment) or 6-station turret can be equipped for cutting different shapes of workpieces. The lathe has beautiful guard. Its well designed sliding door is easy to use and functions as a protector of operators’ safety.
The lathe is suitable for turning shaft type and plate/ring type workpieces. Operations performed on the lathe are ID/OD turning, any taper turning, arc surface turning, facing and metric/inch threading. It is suitable for cutting multi specification work in batches, especially complex and high precision workpieces.
This lathe is an easy-operated CNC lathe driven by a 7.5KW main motor. Either 4-station turret (standard equipment) or 6-station turret can be equipped for cutting different shapes of workpieces. The lathe has beautiful guard. Its well designed sliding door is easy to use and functions as a protector of operators’ safety.
The lathe is suitable for turning shaft type and plate/ring type workpieces. Operations performed on the lathe are ID/OD turning, any taper turning, arc surface turning, facing and metric/inch threading. It is suitable for cutting multi specification work in batches, especially complex and high precision workpieces.
| Items | BF40P |
| Capacity | |
| Max swing over bed | Ø400mm |
| Max swing over cross slide | Ø200mm |
| Max machining diameter | 400mm |
| Distance between centers | 710/960/1460/1960mm |
| Max machining length | 570/820/1320/1820mm |
| Bed width | 390mm |
| Spindle | |
| Spindle nose | A2-8 (or D8) |
| Spindle bore | Φ77mm |
| Step of spindle speed | 3 steps |
| Range of spindle speed | 21-210/66~660/162~1620 r/min |
| Spindle motor power | 7.5kW |
| Travel and rapid traverse | |
| X axis travel | 275mm |
| Z axis travel | 650/900/1400/1900mm |
| X axis rapid traverse speed | 6m/min |
| Z axis rapid traverse speed | 8m/min |
| Turret | |
| Number of tool station | 4-position |
| Tool cross section | 25x25mm |
| Tailstock | |
| Tailstock sleeve diameter | Φ75mm |
| Tailstock sleeve travel | 150mm |
| Tailstock sleeve taper (manual) | MT-5 |
| Others | |
| Overall dimensions (L×W×H) | 710mm:2250 ×1370×1690mm 960mm:2500 ×1370×1690mm 1460mm:3000 ×1370×1690mm 1960mm:3500 ×1370×1690mm |
| Net weight | 2050/2100/2150/2200kg |
| Item 02 | Descriptions | |
| 02.01 | SIEMENS CNC system | |
| 02.02 | 3-Jaw 10 inch Hollow hydraulic chuck | |
| 02.03 | 3-Jaw 10 inch Solid hydraulic chuck | |
| 02.04 | 6-station electric tool post; | |
| 02.05 | Hydraulic tailstock |
Knee Type Milling Machine: Precision Versatility for Industrial Manufacturing
What is a Knee Type Milling Machine?
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.
Working Principle
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.
Key Applications
- Tool & Die Making: Precision molds, jigs, fixtures
- Prototyping: Rapid part development
- Maintenance Shops: Equipment repair & part fabrication
- General Machining: Slotting, drilling, facing, keyway cutting
- Aerospace & Automotive: Component manufacturing
Distinctive Features & Advantages
- Vertical Adjustability: Knee movement enables quick workpiece height changes
- Rigid Construction: Robust cast iron frame ensures stability
- Manual & CNC Options: Traditional control or computer numerical precision
- Turret Design (Common): Swiveling milling head for multi-angle machining
- Wide Workpiece Compatibility: Handles various sizes and shapes
Primary Classifications
- Vertical Knee Mill: Spindle axis perpendicular to table (most common)
- Horizontal Knee Mill: Spindle axis parallel to table (for heavy stock removal)
- Universal Knee Mill: Table swivels for complex angular cuts
- Turret Mill: Head rotates on turret for flexible positioning
Main Components
- Base & Column: Primary support structure
- Knee: Vertically moving saddle supporting the table
- Saddle & Table: Hold and position the workpiece (X/Y axes)
- Milling Head: Houses spindle, motor, and quill (Z-axis)
- Arbor/Spindle: Rotating shaft holding cutting tools
- Controls: Manual handwheels or CNC interface
Evolution & Industry Significance
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.
Fortune Pacific: Your Knee Mill Solution
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.