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Fortuna Internal Grinding Machine

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Fortuna Internal Grinding Machine Specification

Rotation
Both Clockwise and Counter-Clockwise

Model
Fortuna Internal Grinding Machine

Product Type
Internal Grinding Machine

General Use
Internal grinding operations for precision engineering and toolroom works

Material
Cast Iron, Sheet Metal, and Alloy Steel

Type
Internal cylindrical grinder

Capacity
1 piece at a time

Weight (kg)
Approx. 1400 kg

Computerized
No

Automatic
No

CNC Or Not
No, Conventional

Control System
Manual

Table Size
340 x 180 mm

Table Slide Way
V and Flat Type

Magnetic Chuck Size
150 mm

Grinding Wheel Size
200 mm diameter

Grinding Wheel Speed
Up to 2880 RPM

Grinding Length
125 mm

Floor Space
1400 x 1100 mm

Spindle Speed
2800 RPM

Power
2 HP

Voltage
415 V, 3 Phase

Dimension (L*W*H)
Approx. 1400 x 1100 x 1500 mm

Feature
High precision, robust construction, smooth operation

Color
White & Blue

Max Workpiece Length
125 mm

Lubrication System
Centralized lubrication

Bore Grinding Capacity
6 mm to 100 mm

Surface Finish Ra
0.2 µm

Dressers
Single point diamond dresser

Main Motor Power
1.5 kW

Accuracy
0.002 mm

Work Head Speeds
Variable, up to 250 RPM

Chuck Type
Manual 3-jaw chuck

Max Workpiece Diameter
125 mm

Quill Stroke
70 mm

Coolant System
Inbuilt pump with recirculation

About Fortuna Internal Grinding Machine

Make - Fortuna (Germany)

Max. Diameter of Job - 380 mm

Max. Ground-able Internal Diameter - 250 mm

Table Longitudinal Travel - 300 mm

Chuck Diameter - 160 mm

Face Grinding Wheel Diameter - 175 mm

Internal Grinding Spindle Diameter (2 pcs) - 80 mm & 60 mm

Work-Head Rotation Angle - 20^o to -10^o

- Machine is equipped with DRO

- Automatic Depth Adjustment "Auto-Cut"

- Complete with wheel dresser, reverse jaw set for chuck, spare spindle, belts etc.

- Complete with Coolant pump etc.

- Machine is in excellent working condition.

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Robust Construction and Precision

Constructed from high-grade cast iron, sheet metal, and alloy steel, the Fortuna Internal Grinding Machine is built for durability and stability. Its rigid structure supports high-accuracy operations, maintaining precision to 0.002 mm. This makes it an excellent choice for toolrooms and heavy-duty precision engineering requirements where reliability and meticulous finishing are paramount.

Flexible Operation and User Control

Equipped with a manual 3-jaw chuck and variable work head speeds up to 250 RPM, the machine accommodates a range of workpiece sizes and materials. Operators benefit from manual control, allowing flexible and customized adjustment for different internal grinding tasks. Both clockwise and counterclockwise rotation extend its versatility for specialized operations.

Advanced Cooling and Lubrication Systems

The integrated recirculating coolant pump ensures effective grinding wheel cooling, preventing overheating and preserving workpiece integrity. A centralized lubrication system delivers oil precisely where needed, reducing wear and extending the lifespan of critical components for consistent performance over time.

FAQs of Fortuna Internal Grinding Machine:

Q: How does the Fortuna Internal Grinding Machine ensure high-precision grinding operations?

A: The machine is engineered with robust cast iron construction and precise manual control, achieving a grinding accuracy of 0.002 mm. Its rigid table slide with V and flat ways and variable work head speeds further enhance process stability and finish quality.

Q: What is the process for operating the machine with the manual 3-jaw chuck?

A: Simply mount the workpiece within the 3-jaw chuck manually, adjust the work head speed as needed (up to 250 RPM), and guide the grinding operation through the manual controls to achieve internal finishes according to your specifications.

Q: When should the centralized lubrication system be used?

A: The centralized lubrication system operates automatically during machine use, ensuring all moving parts receive proper lubrication continuously, which is critical during prolonged operations or high-precision jobs.

Q: Where is this grinding machine best utilized?

A: The Fortuna Internal Grinding Machine is ideally used in precision engineering workshops, toolrooms, and manufacturing facilities that require internal cylindrical grinding for small-batch or single workpieces, particularly in tool and die making, repair, and component finishing.

Q: What materials can be ground using this machine?

A: Thanks to its solid build and powerful 1.5 kW main motor, the machine is suitable for grinding a variety of metals such as hardened steels, cast iron, and alloy components within its 6 mm to 100 mm bore capacity and 125 mm workpiece size limit.

Q: How does the coolant system benefit the grinding process?

A: The inbuilt recirculation pump provides a steady stream of coolant to the work area, minimizing thermal deformation, reducing wheel wear, and effectively removing debris for superior surface finish and dimensional accuracy.

Q: What advantages does manual control offer over CNC models?

A: Manual operation allows skilled users to adjust settings in real time, catering to complex or one-off grinding tasks with greater flexibility, making the machine particularly valuable in toolrooms and where adaptability is essential.

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