PB130 DRO Planer Type Boring Milling Machine
- PB130 DRO Planer Type Boring Milling MachineDownload
| Model | PB130 DRO |
| Spindle | |
| Spindle diameter | Φ130mm |
| Milling arbor end diameter | Φ221.44mm |
| Spindle taper hole | Φ65mm |
| Spindle taper | ISO50 7:24 |
| Max. feeding force on spindle | 30000N |
| Max. allowed torque on spindle | 3500Nm |
| Spindle speed range | 3-700r/min (stepless) |
| Worktable | |
| Worktable size (L x W) | 2000x2000mm (2000x2500; 2500x3000mm) |
| Max. load capacity of worktable | 10000kg; 20000kg |
| Working range | |
| Worktable transverse travel (X) | 2000mm~20000mm |
| Spindle box vertical travel (Y) | 1500~2000mm |
| Spindle axial travel (Z) | 1000mm (Can be longer) |
| Column travel (W) | 600~1900mm |
| Back column vertical travel | 2000mm |
| Back column horizontal travel | 630mm |
| Worktable rotating (B) | 360° |
| Worktable 4 points fixing | 4x90° |
| Feeding | |
| Worktable feeding speed (X) | 2.5-2000mm/min (stepless) |
| Spindle box feeding speed (Y) | 4-3000mm/min (stepless) |
| Boring spindle feeding speed | 2-3000mm/min (stepless) |
| Column feeding speed (W) | 3000mm/min |
| Rotary table feeding speed | 0.001-0.05r/min (stepless) |
| Rotary table rapid speed | 1r/min |
| Others | |
| DRO | 2 axis |
| Main motor power | 22kW |
| Overall dimension (L x W x H) | 7050x5700x5320mm |
| Machine weight (approximate) | 40000kg |
| Item 01 | Descriptions | |
| 01.01 | Pull stud | |
| 01.02 | Oil filling gun | |
| 01.03 | Screw driver | |
| 01.04 | Double ended spanner | |
| 01.05 | Inner hexagon spanner | |
| 01.06 | Foundation bolt | |
| 01.07 | Foundation bolt | |
| 01.08 | Adjusting parallels |
| Item 02 | Descriptions | |
| 02.01 | 600mm Facing plate (Slide block travel 140mm) | |
| 02.02 | 600mm Angle milling head | |
| 02.03 | 800mm Angle milling head | |
| 02.04 | Rear column |
Features of PB130 DRO Planer Type Boring and Milling Machine
1. The spindle box is installed on the column and moves vertically along the column guideways; column is fixed on the slide and moves transversely along bed guideways; rotary table is installed on the slide and moves longitudinally along bed guideways.
2. Headstock is clamped by disk spring and released hydraulically; slide is clamped and released hydraulically.
3. Bed, column, headstock and other main parts adopt resin sand molding high-strength castings.
Geometric accuracy
Radial run-out of taper hole axis of the boring spindle
Approach spindle end A: 0.015mm
300 mm from the spindle end B: 0.03mm
Radial run-out of boring spindle
Approach spindle end A: 0.015mm
Stretch out the spindle 300mm B: 0.03mm
Axial bounce of spindle 0.015mm
Verticality of boring spindle axis to movement of column 0.03/1000mm
Verticality of boring spindle axis to movement of spindle box 0.03/1000mm
Parallelism of worktable movement to axis of boring spindle in vertical plane 0.02mm/1000
Parallelism of worktable movement to axis of boring spindle in horizontal plane 0.02mm/1000
Planeness of worktable surface (flat or concave) 0.03mm/1000
Dividing accuracy of the rotary table (4×90°) ±8"
1. The spindle box is installed on the column and moves vertically along the column guideways; column is fixed on the slide and moves transversely along bed guideways; rotary table is installed on the slide and moves longitudinally along bed guideways.
2. Headstock is clamped by disk spring and released hydraulically; slide is clamped and released hydraulically.
3. Bed, column, headstock and other main parts adopt resin sand molding high-strength castings.
Radial run-out of taper hole axis of the boring spindle
Approach spindle end A: 0.015mm
300 mm from the spindle end B: 0.03mm
Radial run-out of boring spindle
Approach spindle end A: 0.015mm
Stretch out the spindle 300mm B: 0.03mm
Axial bounce of spindle 0.015mm
Verticality of boring spindle axis to movement of column 0.03/1000mm
Verticality of boring spindle axis to movement of spindle box 0.03/1000mm
Parallelism of worktable movement to axis of boring spindle in vertical plane 0.02mm/1000
Parallelism of worktable movement to axis of boring spindle in horizontal plane 0.02mm/1000
Planeness of worktable surface (flat or concave) 0.03mm/1000
Dividing accuracy of the rotary table (4×90°) ±8"
| Item 01 | Descriptions | |
| 01.01 | Pull stud | |
| 01.02 | Oil filling gun | |
| 01.03 | Screw driver | |
| 01.04 | Double ended spanner | |
| 01.05 | Inner hexagon spanner | |
| 01.06 | Foundation bolt | |
| 01.07 | Foundation bolt | |
| 01.08 | Adjusting parallels |
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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