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GSM1250 B3 CNC Gear Shaper
GSM1250 B3 CNC Gear shaper designed for the production of gear used on large-and-medium size speed reducers, wind-mill generating components, tractor, construction machinery, metallurgical machinery, machine tool, aircraft and textile industries.
- GSM1250 B3 CNC Gear ShaperDownload
Specifications of GSM1250 B3 CNC Gear Shaping Machine
Application
GSM1250 B3 CNC Gear shaper designed mainly for the production of gear used on large-and-medium size speed reducers, wind-mill generating components, tractor, construction machinery, metallurgical machinery, machine tool, aircraft and textile industries, etc., suitable for jobbing and batch productions and mass production, mainly used for cutting internal and external cylindrical gears, different kinds of non-circular gears and plate cams. When a helical guide and a special cutter are adopted, various kinds of serration couplings and involutes spline can be machined.
Features
■ Longitudinally arranged with oscillated cutter relieving and the radial feed of worktable is made on three rectangular guide ways. Machine bed, column, cutter head and table are with better rigidity in structure and driving;
■ Three axes are controlled simultaneously for the cutter spindle rotation, the worktable rotation and the radial feed of the worktable;
■ Driven by a spindle servo motor; stepless speed regulation and automatic changeover can be made;
■ The cutter spindle can be stopped automatically at the up position;
■ A large-diameter zero-degree worm and segmental zero-degree worm wheel transmission mechanism which applies a constant cutting force during the whole cutting process, is adopted for the cutter spindle movements;
■ A new type double-roller and tow-way relieving mechanism is adopted for carrying out an accurate, stable and low noise cutter relieving motion;
■ A tangent cutter relief is possible to prevent cutter interference;
■ A safety enclosure, which has an excellent visibility for the operating conditions and is easy to be operated, is equipped to prevent oil splash and an auto chip conveyor is provided;
■ An independent forced lubrication system is used for the cutter head and timed and quantitative lubrication is adopted for the other parts; a chip-flushing oil gun is equipped;
■ SIEMENS 828D is equipped and an air conditioner may be provided for the independent sealed electrical cabinet;
■ A large number of coolant is used for the cooling system and the machine bed is designed as a coolant tank for the timely heat dissipation and stable accuracy;
■ Timed and quantitative lubrication is adopted between work spindle and worktable in order to reduce the moment and prolong the service life of worm and worm wheel pair;
■ A separate hydraulic pump station is available for the quick return of oil and to prevent the oil from being mixed;
■ Equipped with a reducer on the servo motor of worktable rotation axis (Y-axis), which elevates the motor capacity;
■ A new-type cutter adapter have been adopted in the cutter head;
| Model | Unit | GSM1250 | |
|---|---|---|---|
| Type | B3 | ||
| Simultaneous control | SIEMENS 828D; 3-axis | ||
| Max. diameter of workpiece | External gear | mm | 1250 (49″) |
| Internal gear | mm | 1600 (63″) | |
| Max. module of work | mm | 12 (0.5″) | |
| Max. face width | mm | 260 (10″) | |
| Max. stroke length of cutter | mm | 300 (12″) | |
| Distance between axes of cutter and work spindle | mm | 0~750 (0~30″) | |
| Diameter of worktable | mm | Φ1250 (49″) | |
| Distance between worktable surface and bearing surface of cutter | mm | 380-710 (15″-28″) | |
| Cutter reciprocating strokes per minute | min-1 | 30~200 | |
| Power of main motor | kW | 15 | |
| Rotary feed of cutter | mm/stroke | 0.01~3 | |
| Radial feed of cutter | mm/stroke | 0.01~0.5 | |
| Total power of machine | kVA | 40 | |
| Weight of machine | kg | 20000 | |
| Overall dimensions (L x W x H) | mm | 3730×2000×3300 | |
Application
GSM1250 B3 CNC Gear shaper designed mainly for the production of gear used on large-and-medium size speed reducers, wind-mill generating components, tractor, construction machinery, metallurgical machinery, machine tool, aircraft and textile industries, etc., suitable for jobbing and batch productions and mass production, mainly used for cutting internal and external cylindrical gears, different kinds of non-circular gears and plate cams. When a helical guide and a special cutter are adopted, various kinds of serration couplings and involutes spline can be machined.
Features
■ Longitudinally arranged with oscillated cutter relieving and the radial feed of worktable is made on three rectangular guide ways. Machine bed, column, cutter head and table are with better rigidity in structure and driving;
■ Three axes are controlled simultaneously for the cutter spindle rotation, the worktable rotation and the radial feed of the worktable;
■ Driven by a spindle servo motor; stepless speed regulation and automatic changeover can be made;
■ The cutter spindle can be stopped automatically at the up position;
■ A large-diameter zero-degree worm and segmental zero-degree worm wheel transmission mechanism which applies a constant cutting force during the whole cutting process, is adopted for the cutter spindle movements;
■ A new type double-roller and tow-way relieving mechanism is adopted for carrying out an accurate, stable and low noise cutter relieving motion;
■ A tangent cutter relief is possible to prevent cutter interference;
■ A safety enclosure, which has an excellent visibility for the operating conditions and is easy to be operated, is equipped to prevent oil splash and an auto chip conveyor is provided;
■ An independent forced lubrication system is used for the cutter head and timed and quantitative lubrication is adopted for the other parts; a chip-flushing oil gun is equipped;
■ SIEMENS 828D is equipped and an air conditioner may be provided for the independent sealed electrical cabinet;
■ A large number of coolant is used for the cooling system and the machine bed is designed as a coolant tank for the timely heat dissipation and stable accuracy;
■ Timed and quantitative lubrication is adopted between work spindle and worktable in order to reduce the moment and prolong the service life of worm and worm wheel pair;
■ A separate hydraulic pump station is available for the quick return of oil and to prevent the oil from being mixed;
■ Equipped with a reducer on the servo motor of worktable rotation axis (Y-axis), which elevates the motor capacity;
■ A new-type cutter adapter have been adopted in the cutter head;
Features
■ Longitudinally arranged with oscillated cutter relieving and the radial feed of worktable is made on three rectangular guide ways. Machine bed, column, cutter head and table are with better rigidity in structure and driving;
■ Three axes are controlled simultaneously for the cutter spindle rotation, the worktable rotation and the radial feed of the worktable;
■ Driven by a spindle servo motor; stepless speed regulation and automatic changeover can be made;
■ The cutter spindle can be stopped automatically at the up position;
■ A large-diameter zero-degree worm and segmental zero-degree worm wheel transmission mechanism which applies a constant cutting force during the whole cutting process, is adopted for the cutter spindle movements;
■ A new type double-roller and tow-way relieving mechanism is adopted for carrying out an accurate, stable and low noise cutter relieving motion;
■ A tangent cutter relief is possible to prevent cutter interference;
■ A safety enclosure, which has an excellent visibility for the operating conditions and is easy to be operated, is equipped to prevent oil splash and an auto chip conveyor is provided;
■ An independent forced lubrication system is used for the cutter head and timed and quantitative lubrication is adopted for the other parts; a chip-flushing oil gun is equipped;
■ SIEMENS 828D is equipped and an air conditioner may be provided for the independent sealed electrical cabinet;
■ A large number of coolant is used for the cooling system and the machine bed is designed as a coolant tank for the timely heat dissipation and stable accuracy;
■ Timed and quantitative lubrication is adopted between work spindle and worktable in order to reduce the moment and prolong the service life of worm and worm wheel pair;
■ A separate hydraulic pump station is available for the quick return of oil and to prevent the oil from being mixed;
■ Equipped with a reducer on the servo motor of worktable rotation axis (Y-axis), which elevates the motor capacity;
■ A new-type cutter adapter have been adopted in the cutter head;
■ Longitudinally arranged with oscillated cutter relieving and the radial feed of worktable is made on three rectangular guide ways. Machine bed, column, cutter head and table are with better rigidity in structure and driving;
■ Three axes are controlled simultaneously for the cutter spindle rotation, the worktable rotation and the radial feed of the worktable;
■ Driven by a spindle servo motor; stepless speed regulation and automatic changeover can be made;
■ The cutter spindle can be stopped automatically at the up position;
■ A large-diameter zero-degree worm and segmental zero-degree worm wheel transmission mechanism which applies a constant cutting force during the whole cutting process, is adopted for the cutter spindle movements;
■ A new type double-roller and tow-way relieving mechanism is adopted for carrying out an accurate, stable and low noise cutter relieving motion;
■ A tangent cutter relief is possible to prevent cutter interference;
■ A safety enclosure, which has an excellent visibility for the operating conditions and is easy to be operated, is equipped to prevent oil splash and an auto chip conveyor is provided;
■ An independent forced lubrication system is used for the cutter head and timed and quantitative lubrication is adopted for the other parts; a chip-flushing oil gun is equipped;
■ SIEMENS 828D is equipped and an air conditioner may be provided for the independent sealed electrical cabinet;
■ A large number of coolant is used for the cooling system and the machine bed is designed as a coolant tank for the timely heat dissipation and stable accuracy;
■ Timed and quantitative lubrication is adopted between work spindle and worktable in order to reduce the moment and prolong the service life of worm and worm wheel pair;
■ A separate hydraulic pump station is available for the quick return of oil and to prevent the oil from being mixed;
■ Equipped with a reducer on the servo motor of worktable rotation axis (Y-axis), which elevates the motor capacity;
■ A new-type cutter adapter have been adopted in the cutter head;
Specifications of GSM1250 B3 CNC Gear Shaping Machine
| Model | Unit | GSM1250 | |
|---|---|---|---|
| Type | B3 | ||
| Simultaneous control | SIEMENS 828D; 3-axis | ||
| Max. diameter of workpiece | External gear | mm | 1250 (49″) |
| Internal gear | mm | 1600 (63″) | |
| Max. module of work | mm | 12 (0.5″) | |
| Max. face width | mm | 260 (10″) | |
| Max. stroke length of cutter | mm | 300 (12″) | |
| Distance between axes of cutter and work spindle | mm | 0~750 (0~30″) | |
| Diameter of worktable | mm | Φ1250 (49″) | |
| Distance between worktable surface and bearing surface of cutter | mm | 380-710 (15″-28″) | |
| Cutter reciprocating strokes per minute | min-1 | 30~200 | |
| Power of main motor | kW | 15 | |
| Rotary feed of cutter | mm/stroke | 0.01~3 | |
| Radial feed of cutter | mm/stroke | 0.01~0.5 | |
| Total power of machine | kVA | 40 | |
| Weight of machine | kg | 20000 | |
| Overall dimensions (L x W x H) | mm | 3730×2000×3300 | |
Application
GSM1250 B3 CNC Gear shaper designed mainly for the production of gear used on large-and-medium size speed reducers, wind-mill generating components, tractor, construction machinery, metallurgical machinery, machine tool, aircraft and textile industries, etc., suitable for jobbing and batch productions and mass production, mainly used for cutting internal and external cylindrical gears, different kinds of non-circular gears and plate cams. When a helical guide and a special cutter are adopted, various kinds of serration couplings and involutes spline can be machined.
GSM1250 B3 CNC Gear shaper designed mainly for the production of gear used on large-and-medium size speed reducers, wind-mill generating components, tractor, construction machinery, metallurgical machinery, machine tool, aircraft and textile industries, etc., suitable for jobbing and batch productions and mass production, mainly used for cutting internal and external cylindrical gears, different kinds of non-circular gears and plate cams. When a helical guide and a special cutter are adopted, various kinds of serration couplings and involutes spline can be machined.
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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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