| Model | Unit | FP-340 | |||
|---|---|---|---|---|---|
| Working range | Max. turning diameter over bed | mm | Φ380 | Φ420 | |
| Max. swing diameter over carriage | mm | Φ130 | Φ160 | ||
| Max. turning diameter | mm | Φ340 | Φ340 | ||
| Max. processing length | mm | 280 | 250 | 200 | |
| Max. X/Z axis travel | X axis | mm | 180 | ||
| Z axis | mm | 330 | |||
| Feed screw | X axis ball-screw | mm | 3208-C3 | ||
| Recommend the X axis motor torque | Nm | ≥7.5 | |||
| Z axis ball-screw | 3208-C3 | ||||
| Recommend the Z axis motor torque | Nm | ≥10 | |||
| Bed | Bed slant angle | 45° | |||
| Linear guide’s span | mm | 362 | |||
| Spindle | Max. Spindle speed | rpm | 4500 | 4500 | 4500 |
| Spindle through-hole diameter | mm | Φ46 (standard) |
Φ56 (standard) |
Φ61 (standard) |
|
| Spindle nose size | mm | A2-4 | A2-5 | A2-6 | |
| Recommend the spindle motor power | kW | 5.5 | 5.5 | 7.5 | |
| Hydraulic chuck or collet chuck | inch | 5” or Φ36 collet chuck | 6” or Φ46 collet chuck | 8” or Φ52 collet chuck | |
| Hydraulic tailstock | Diameter of tailstock center sleeve | mm | Φ72 | ||
| Max. stroke of tailstock center sleeve | mm | 100 | |||
| Taper of tailstock center sleeve | MT4 | ||||
Features
1. Spindle unit;
2. Germany INA/ REXROTH linear guide;
3. Taiwan PMI/HIWIN screw;
4. Germany FAG screw bearing;
5. Linear guideway, with turret;
Briefs
FP-340 45° CNC Lathe Cast Iron Main Basic Frame is the key cast iron or cast steel component for the manufacture of swing over bed 340mm Inclined bed CNC Lathe.
1. Spindle unit;
2. Germany INA/ REXROTH linear guide;
3. Taiwan PMI/HIWIN screw;
4. Germany FAG screw bearing;
5. Linear guideway, with turret;
| Model | Unit | FP-340 | |||
|---|---|---|---|---|---|
| Working range | Max. turning diameter over bed | mm | Φ380 | Φ420 | |
| Max. swing diameter over carriage | mm | Φ130 | Φ160 | ||
| Max. turning diameter | mm | Φ340 | Φ340 | ||
| Max. processing length | mm | 280 | 250 | 200 | |
| Max. X/Z axis travel | X axis | mm | 180 | ||
| Z axis | mm | 330 | |||
| Feed screw | X axis ball-screw | mm | 3208-C3 | ||
| Recommend the X axis motor torque | Nm | ≥7.5 | |||
| Z axis ball-screw | 3208-C3 | ||||
| Recommend the Z axis motor torque | Nm | ≥10 | |||
| Bed | Bed slant angle | 45° | |||
| Linear guide’s span | mm | 362 | |||
| Spindle | Max. Spindle speed | rpm | 4500 | 4500 | 4500 |
| Spindle through-hole diameter | mm | Φ46 (standard) |
Φ56 (standard) |
Φ61 (standard) |
|
| Spindle nose size | mm | A2-4 | A2-5 | A2-6 | |
| Recommend the spindle motor power | kW | 5.5 | 5.5 | 7.5 | |
| Hydraulic chuck or collet chuck | inch | 5” or Φ36 collet chuck | 6” or Φ46 collet chuck | 8” or Φ52 collet chuck | |
| Hydraulic tailstock | Diameter of tailstock center sleeve | mm | Φ72 | ||
| Max. stroke of tailstock center sleeve | mm | 100 | |||
| Taper of tailstock center sleeve | MT4 | ||||
FP-340 45° CNC Lathe Cast Iron Main Basic Frame is the key cast iron or cast steel component for the manufacture of swing over bed 340mm Inclined bed CNC Lathe.
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.
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