| Model | Unit | RD32x8 | RD40x8 | RD40x10Q |
| Clamping type | Mechanical lock | |||
| Max. Drilling capacity in steel / in cast iron | mm | 32 / 40 (1.3/ 1.6”) |
40 (1.97”) |
40 (1.97”) |
| Distance from spindle axis to column generating line | mm | 320-820 (12.6 – 32.3”) |
320-820 (12.6 – 32.3”) |
320-1020 (12.6 – 40.2”) |
| Diameter of column | mm | Φ200 (7.9”) | ||
| Spindle taper | MT-4 | |||
| Spindle travel | mm | 240 (9.4”) | ||
| Spindle speeds range | rpm | 75-1220 | ||
| Spindle speeds steps | steps | 6 | ||
| Range of Spindle feeds | mm/r | 0.1-0.25 | ||
| Main Spindle feeds steps | steps | 3 | ||
| Max. distance from spindle nose to working surface of base | mm | 120-860 (4.7” – 33.9”) | ||
| Dimension of worktable | mm | 400x400x350 (16x16x14”) | ||
| Dimension of base | mm | 1370x700x160 (54x28x6.3”) | ||
| Overall Size | mm | 1407x720x1885 | 1600x720x1885 | |
| Power of Main motor | kW | 1.5 | 1.5 | |
| Gross weight / Net weight | kg | 1230 / 1140 | 1230 / 1160 | |
| Packing dimension | mm | 1550x770x2100 | 1750x770x2100 | |
1. Box shape worktable;
2. Taper sleeve;
3. Tool releasing Wrench;
4. Drift;
5. Eyelet bolts;
Optionals
1. Quick exchange Chuck;
2. Tapping chuck;
3. Safety guard;
Applications
Radial arm drilling machine RD32x8; RD40x8; RD40x10Q is used to create a round hole and is accomplished by a rotating tool that typically has two or four cutting edges. Tools are fed in a direction parallel to it’s axis of rotation into the work part to form the round hole.
Features
1. Key components are made of high strength cast iron or special steel;
2. Advanced heat treatment results in Radial drills durable parts and components;
3. High precision components are available due to specialized processing;
4. Spindle rotation speed and feed is available in cutting;
5. Quick, safe clamping and unclamping operations are achievable;
6. Radial drilling machine RD32x8; RD40x8; RD40x10Q clamping type adopts mechanical lock;
1. Box shape worktable;
2. Taper sleeve;
3. Tool releasing Wrench;
4. Drift;
5. Eyelet bolts;
Optionals
1. Quick exchange Chuck;
2. Tapping chuck;
3. Safety guard;
| Model | Unit | RD32x8 | RD40x8 | RD40x10Q |
| Clamping type | Mechanical lock | |||
| Max. Drilling capacity in steel / in cast iron | mm | 32 / 40 (1.3/ 1.6”) |
40 (1.97”) |
40 (1.97”) |
| Distance from spindle axis to column generating line | mm | 320-820 (12.6 – 32.3”) |
320-820 (12.6 – 32.3”) |
320-1020 (12.6 – 40.2”) |
| Diameter of column | mm | Φ200 (7.9”) | ||
| Spindle taper | MT-4 | |||
| Spindle travel | mm | 240 (9.4”) | ||
| Spindle speeds range | rpm | 75-1220 | ||
| Spindle speeds steps | steps | 6 | ||
| Range of Spindle feeds | mm/r | 0.1-0.25 | ||
| Main Spindle feeds steps | steps | 3 | ||
| Max. distance from spindle nose to working surface of base | mm | 120-860 (4.7” – 33.9”) | ||
| Dimension of worktable | mm | 400x400x350 (16x16x14”) | ||
| Dimension of base | mm | 1370x700x160 (54x28x6.3”) | ||
| Overall Size | mm | 1407x720x1885 | 1600x720x1885 | |
| Power of Main motor | kW | 1.5 | 1.5 | |
| Gross weight / Net weight | kg | 1230 / 1140 | 1230 / 1160 | |
| Packing dimension | mm | 1550x770x2100 | 1750x770x2100 | |
Radial arm drilling machine RD32x8; RD40x8; RD40x10Q is used to create a round hole and is accomplished by a rotating tool that typically has two or four cutting edges. Tools are fed in a direction parallel to it’s axis of rotation into the work part to form the round hole.
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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