| Model | ST-8F | |
| CNC system | GSK 988TA Optional:SIEMENS 808DA ,FANUC 0I TF |
|
| Capacity | Swing diameter over bed | Ø480 mm |
| Swing diameter over slide | Ø200 mm | |
| Working piece length(Max) | 450 mm | |
| Spindle through hole | Ø50 mm | |
| Spindle | Speed range | 60~4500rpm |
| Spindle nose | A2-6 | |
| Spindle hole dia | 65mm | |
| Main motor power | 7.5KW | |
| Chuck size | 8 inch | |
| Carriage | X/Z axis travel | 195/545 mm |
| X/Z axis rapid travel speed | 24/24m/min | |
| X/Z servo motor torque | 10/10 Nm | |
| Guidway | Linear | |
| Tools | Tools number | 8 |
| Tool shank dimensions | 25*25mm | |
| Boring tool size | Ø32mm | |
| Accuracy | Positioning accuracy X/Z axis | 0.01/0.012mm |
| Repeatability accuracy X/Z axis | 0.004/0.006mm | |
| Tailstock | Tailstock quill diameter | Ø52 |
| Tailstock travel | 370mm | |
| Tailstock quill travel | 60mm | |
| Tailstock taper | MT4 | |
| Others | Coolant pump power | 180W |
| Hydraulic station tank | 45L | |
| Total power consumption | 14.4KVA | |
| Overall dimensions(L*W*H) | 2340*1830*1975mm | |
| Weight | 2970KG | |
Features of ST-8F Slant Bed Turning CNC Lathe
1, 30°slanting bed convenient to chip remove;
2, Mono-block design of machine bed and body;
3, Spindle speed up to 4500rpm;
4, Rapid speed can up to 24m/min;
5, World famous function parts be used;
6, HIWIN linear guide way;
7, PMI or HIWIN ball screw;
8, Chandox chuck and cylinder;
Equipment
1. GSK 988TA CNC;
2. 8-position servo tool post;
3. Hydraulic hollow 8’’ chuck;
4. Hydraulic tailstock;
5. Lubrication system;
6. 3-color warning light;
7. Coolant system;
Optional
1. Siemens 808DA or Fanuc 0i TF;
2. Hydraulic chuck 10’’.
1, 30°slanting bed convenient to chip remove;
2, Mono-block design of machine bed and body;
3, Spindle speed up to 4500rpm;
4, Rapid speed can up to 24m/min;
5, World famous function parts be used;
6, HIWIN linear guide way;
7, PMI or HIWIN ball screw;
8, Chandox chuck and cylinder;
| Model | ST-8F | |
| CNC system | GSK 988TA Optional:SIEMENS 808DA ,FANUC 0I TF |
|
| Capacity | Swing diameter over bed | Ø480 mm |
| Swing diameter over slide | Ø200 mm | |
| Working piece length(Max) | 450 mm | |
| Spindle through hole | Ø50 mm | |
| Spindle | Speed range | 60~4500rpm |
| Spindle nose | A2-6 | |
| Spindle hole dia | 65mm | |
| Main motor power | 7.5KW | |
| Chuck size | 8 inch | |
| Carriage | X/Z axis travel | 195/545 mm |
| X/Z axis rapid travel speed | 24/24m/min | |
| X/Z servo motor torque | 10/10 Nm | |
| Guidway | Linear | |
| Tools | Tools number | 8 |
| Tool shank dimensions | 25*25mm | |
| Boring tool size | Ø32mm | |
| Accuracy | Positioning accuracy X/Z axis | 0.01/0.012mm |
| Repeatability accuracy X/Z axis | 0.004/0.006mm | |
| Tailstock | Tailstock quill diameter | Ø52 |
| Tailstock travel | 370mm | |
| Tailstock quill travel | 60mm | |
| Tailstock taper | MT4 | |
| Others | Coolant pump power | 180W |
| Hydraulic station tank | 45L | |
| Total power consumption | 14.4KVA | |
| Overall dimensions(L*W*H) | 2340*1830*1975mm | |
| Weight | 2970KG | |
1. GSK 988TA CNC;
2. 8-position servo tool post;
3. Hydraulic hollow 8" chuck;
4. Hydraulic tailstock;
5. Lubrication system;
6. 3-color warning light;
7. Coolant system;
Optional
1. Siemens 808DA or Fanuc 0i TF;
2. Hydraulic chuck 10’’.
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.