RD50x12H Hydraulic Lock Radial Arm Drilling Machine
- RD50x12H Hydraulic Lock Radial Arm Drilling MachineDownload
| Model | RD50x12H |
| Clamping type | Hydraulic lock |
| Max. drilling capacity (mm) in steel / In cast iron | 50 / 60 (1.97” / 2.4”) |
| Distance spindle axis to column generating line (mm) | 350-1250 (13.8”-49.2”) |
| Diameter of column (mm) | 350 (13.8”) |
| Spindle taper | MT-5 |
| Spindle travel (mm) | 315 (12.4”) |
| Spindle speeds range (r/min) | 25-2000 |
| Spindle speeds steps | 16 |
| Range of spindle feeds (r/min) | 0.04-3.2 |
| Spindle feeds steps | 16 |
| Max. distance from spindle nose to working surface of base (mm) | 350-1250 (13.8”-49.2”) |
| Dimension of worktable (mm) | 630x500x500 (25x20x20”) |
| Dimension of base (mm) | 2050x1000x200 (81x39x0.79”) |
| Overall size (mm) | 2150x1060x2650 |
| Power of main motor (kW) | 4 |
| Gross weight / net weight (kg) | 3250/3000 |
| Packing dimension (mm) | 2400X1120X2520 |
1. Box shape work-table;
2. Taper sleeve;
3. Tool releasing Wrench;
4. Drift;
5. Eyelet bolts;
Optionals
1. Quick exchange Chuck;
2. Tapping chuck;
Features
1. Key components are made of high-strength cast iron or special steel with manual, power and fine feed;
2. Advanced heat treatment results in durable parts and components;
3. High precision components are available due to specialized processing; all controls centralized on the head stock easy operation and change; main gears are machined by gear grinding;
4. 16-steps spindle rotation speed and feed is available in cutting;
5. Quick, safe clamping and unclamping operations are achievable;
6. Mechanical, electrical and hydraulic control over the headstock makes the operation easier and quicker;
7. Adopts hydraulic lock;
Applications
1. It is used to create a round hole;
2. Radial Arm Drill is accomplished by a rotating tool that is typically has two or four cutting edges;
3. Tool of drilling machine is fed in a direction parallel to its axis of rotation into the work part to form the round hole;
1. Box shape work-table;
2. Taper sleeve;
3. Tool releasing Wrench;
4. Drift;
5. Eyelet bolts;
Optionals
1. Quick exchange Chuck;
2. Tapping chuck;
| Model | RD50x12H |
| Clamping type | Hydraulic lock |
| Max. drilling capacity (mm) in steel / In cast iron | 50 / 60 (1.97” / 2.4”) |
| Distance spindle axis to column generating line (mm) | 350-1250 (13.8”-49.2”) |
| Diameter of column (mm) | 350 (13.8”) |
| Spindle taper | MT-5 |
| Spindle travel (mm) | 315 (12.4”) |
| Spindle speeds range (r/min) | 25-2000 |
| Spindle speeds steps | 16 |
| Range of spindle feeds (r/min) | 0.04-3.2 |
| Spindle feeds steps | 16 |
| Max. distance from spindle nose to working surface of base (mm) | 350-1250 (13.8”-49.2”) |
| Dimension of worktable (mm) | 630x500x500 (25x20x20”) |
| Dimension of base (mm) | 2050x1000x200 (81x39x0.79”) |
| Overall size (mm) | 2150x1060x2650 |
| Power of main motor (kW) | 4 |
| Gross weight / net weight (kg) | 3250/3000 |
| Packing dimension (mm) | 2400X1120X2520 |
1. Key components are made of high-strength cast iron or special steel with manual, power and fine feed;
2. Advanced heat treatment results in durable parts and components;
3. High precision components are available due to specialized processing; all controls centralized on the head stock easy operation and change; main gears are machined by gear grinding;
4. 16-steps spindle rotation speed and feed is available in cutting;
5. Quick, safe clamping and unclamping operations are achievable;
6. Mechanical, electrical and hydraulic control over the headstock makes the operation easier and quicker;
7. Adopts hydraulic lock;
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.