| Item | Unit | Spec. | Mark | |
| Machining range | Width of table | mm | 1500 | |
| Length of table | mm | 3000 | ||
| Max. Load of table | kg | 8000 | ||
| Effective width of gantry | mm | 1900 | ||
| Max. Height of the gantry | mm | 900 | ||
| Distance between vertical spindle to table surface | mm | 150~950 | ||
| Table travel | Max. Travel of X | mm | 3200 | |
| Max. Travel of Y | mm | 2000 | ||
| Max. Travel of Z | mm | 800 | ||
| Spindle |
Item | Standard (First grade synchronous belt) |
Optional (With ZF gear box) |
|
| Motor power | kW | 15/18.5 | 15/18.5 | |
| Speed range | rpm | 3200 | 3200 | |
| Rated torque | N.m | 257 | 570 | |
| Max. torque | N.m | 318 | 700 | |
| Max. broach | N | 18000 | 18000 | |
| Table system (X) | Structure type | Table movement | ||
| Guideway type | Heavy linear guide rail pair | RGH65 | ||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Arc tooth belt | |||
| Reduction ratio | 1:3 | |||
| Drive unit | Ball screw pair | R63-20-FDC | ||
| Saddle system (Y) | Structure type | Saddle movement | ||
| Guideway type | Heavy linear guide rail pair | RGH55 | ||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Direct | |||
| Reduction ratio | 1:1 | |||
| Drive unit | Ball screw pair | R50-16-FDC | ||
| Slide system (Z) | Structure type | ram movement | ||
| Guideway type | Rectangle plastic-surface guideways pair | |||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Direct | |||
| Reduction ratio | 1:1 | |||
| Drive unit | Ball screw pair | R50-12-FDC | ||
| Rapid feed speed | X | mm/min | 12000 | |
| Y | mm/min | 15000 | ||
| Z | mm/min | 12000 | ||
| Cutting feed speed range | X, Y | mm/min | 1-10000 | |
| Z | mm/min | 1-8000 | ||
| Positioning accuracy of linear axis (GB/T19362.1-2003) | X | mm | 0.025 | Half closed-loop control |
| Y | mm | 0.022 | ||
| Z | mm | 0.025 | ||
| Repeat Positioning accuracy of linear axis (GB/T19362.1-2003) |
X | mm | 0.015 | Half closed-loop control |
| Y | mm | 0.013 | ||
| Z | mm | 0.015 | ||
| Working accuracy | Fine boring surface roughness | ≤Ra1.6 | HB230~260 Steel | |
| Fine milling surface roughness | ≤Ra3.2 | |||
| Working Environment | Temperature | 0˚C-40˚C | ||
| Vlotage | V | 380(-15%,+10%) | ||
| Power frequency | Hz | 50±1% | ||
| Relative humidity | ≤90% | |||
| Compressed air pressure |
MPa | 0.5~0.7 | ||
| CNC system | Model | FANUC 0i-MF Plus | ||
| The total number of control axis | Axes | 3 | ||
| Linkage control axis number | Axes | 3(Linear axis) | ||
| Tool change system | Taper | BT50 | ||
| Tool magazine | arm type tool magazine with 24 tools | |||
| Max. Weight of tool | kg | 25 | ||
| Max. Length of tool | mm | 350 | ||
| Auxiliary function | Lubrication type of guideway pair/ball screw pair | automatic centralized lubrication | ||
| Operation panel | suspension type | |||
| Operation type of manual tool change | Control by button | |||
| Status indication | Three-colour warning lamp | |||
| Cooling type of tool/workpiece | Liquid external cooling | |||
| Overall Dimension | Length | mm | 9500 | |
| Width | mm | 4300 | ||
| Height | mm | 4700 | ||
| Machine weight (about) | kg | 26000 | ||
| Packing Dimension | Total 4 cases (1*40GP+1*20OT+1*40OT) | |||
Machine CNC information
CNC Gantry type Machining Center GMC1530 adopts Fanuc 0i MF Plus 5type system or Siemens 828D system
Standard Configuration
1. Taiwan spindle 6000rpm (highest speed 3200rpm), BT50-190;
2. Taiwan X, Y axis heavy load linear roller guide rail,
3. Z box guide way;
4. Taiwan or German ballscrews for X,Y,Z;
5. Taiwan arm type tool magazine with 24 tools;
6. FAG bearings;
7. Auto lubrication system;
8. Taiwan water coolant pump;
9. Schneider electric components;
10. Nitrogen balance system;
11. Air conditioner for electrical box;
12. Water gun and air gun;
13. Screw type chip conveyor;
Optional accessories
1. 32pcs chain type tool magazine;
2. Germany ZF gear box and oil cooling;
3. 2MPa Coolant through spindle;
4. Renishaw tool setting probe TS27R;
5. Double chain type removal system;
6. Planetary reducer for three axes;
7. Taiwan spindle 8000rpm(After the assembly is completed, the maximum speed is generally set to 6000rpm, if you want the maximum speed of the spindle to be set to 8000rpm, we recommend that you equip it with oil cooling);
8. 90° Right Angle Milling Head Automatic replacement;
1. Taiwan spindle 6000rpm (highest speed 3200rpm), BT50-190;
2. Taiwan X, Y axis heavy load linear roller guide rail,
3. Z box guide way;
4. Taiwan or German ballscrews for X,Y,Z;
5. Taiwan arm type tool magazine with 24 tools;
6. FAG bearings;
7. Auto lubrication system;
8. Taiwan water coolant pump;
9. Schneider electric components;
10. Nitrogen balance system;
11. Air conditioner for electrical box;
12. Water gun and air gun;
13. Screw type chip conveyor;
1. 32pcs chain type tool magazine;
2. Germany ZF gear box and oil cooling;
3. 2MPa Coolant through spindle;
4. Renishaw tool setting probe TS27R;
5. Double chain type removal system;
6. Planetary reducer for three axes;
7. Taiwan spindle 8000rpm(After the assembly is completed, the maximum speed is generally set to 6000rpm, if you want the maximum speed of the spindle to be set to 8000rpm, we recommend that you equip it with oil cooling);
8. 90° Right Angle Milling Head Automatic replacement;
| Item | Unit | Spec. | Mark | |
| Machining range | Width of table | mm | 1500 | |
| Length of table | mm | 3000 | ||
| Max. Load of table | kg | 8000 | ||
| Effective width of gantry | mm | 1900 | ||
| Max. Height of the gantry | mm | 900 | ||
| Distance between vertical spindle to table surface | mm | 150~950 | ||
| Table travel | Max. Travel of X | mm | 3200 | |
| Max. Travel of Y | mm | 2000 | ||
| Max. Travel of Z | mm | 800 | ||
| Spindle |
Item | Standard (First grade synchronous belt) |
Optional (With ZF gear box) |
|
| Motor power | kW | 15/18.5 | 15/18.5 | |
| Speed range | rpm | 3200 | 3200 | |
| Rated torque | N.m | 257 | 570 | |
| Max. torque | N.m | 318 | 700 | |
| Max. broach | N | 18000 | 18000 | |
| Table system (X) | Structure type | Table movement | ||
| Guideway type | Heavy linear guide rail pair | RGH65 | ||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Arc tooth belt | |||
| Reduction ratio | 1:3 | |||
| Drive unit | Ball screw pair | R63-20-FDC | ||
| Saddle system (Y) | Structure type | Saddle movement | ||
| Guideway type | Heavy linear guide rail pair | RGH55 | ||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Direct | |||
| Reduction ratio | 1:1 | |||
| Drive unit | Ball screw pair | R50-16-FDC | ||
| Slide system (Z) | Structure type | ram movement | ||
| Guideway type | Rectangle plastic-surface guideways pair | |||
| Quantity of rail pair | set | 2 | ||
| Transmission form | Direct | |||
| Reduction ratio | 1:1 | |||
| Drive unit | Ball screw pair | R50-12-FDC | ||
| Rapid feed speed | X | mm/min | 12000 | |
| Y | mm/min | 15000 | ||
| Z | mm/min | 12000 | ||
| Cutting feed speed range | X, Y | mm/min | 1-10000 | |
| Z | mm/min | 1-8000 | ||
| Positioning accuracy of linear axis (GB/T19362.1-2003) | X | mm | 0.025 | Half closed-loop control |
| Y | mm | 0.022 | ||
| Z | mm | 0.025 | ||
| Repeat Positioning accuracy of linear axis (GB/T19362.1-2003) |
X | mm | 0.015 | Half closed-loop control |
| Y | mm | 0.013 | ||
| Z | mm | 0.015 | ||
| Working accuracy | Fine boring surface roughness | ≤Ra1.6 | HB230~260 Steel | |
| Fine milling surface roughness | ≤Ra3.2 | |||
| Working Environment | Temperature | 0˚C-40˚C | ||
| Vlotage | V | 380(-15%,+10%) | ||
| Power frequency | Hz | 50±1% | ||
| Relative humidity | ≤90% | |||
| Compressed air pressure |
MPa | 0.5~0.7 | ||
| CNC system | Model | FANUC 0i-MF Plus | ||
| The total number of control axis | Axes | 3 | ||
| Linkage control axis number | Axes | 3(Linear axis) | ||
| Tool change system | Taper | BT50 | ||
| Tool magazine | arm type tool magazine with 24 tools | |||
| Max. Weight of tool | kg | 25 | ||
| Max. Length of tool | mm | 350 | ||
| Auxiliary function | Lubrication type of guideway pair/ball screw pair | automatic centralized lubrication | ||
| Operation panel | suspension type | |||
| Operation type of manual tool change | Control by button | |||
| Status indication | Three-colour warning lamp | |||
| Cooling type of tool/workpiece | Liquid external cooling | |||
| Overall Dimension | Length | mm | 9500 | |
| Width | mm | 4300 | ||
| Height | mm | 4700 | ||
| Machine weight (about) | kg | 26000 | ||
| Packing Dimension | Total 4 cases (1*40GP+1*20OT+1*40OT) | |||
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.