G Rastelli R7A Cylindrical Grinding Machine

Price 100000 INR/ Piece

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G Rastelli R7A Cylindrical Grinding Machine Specification

Product Type
Cylindrical Grinding Machine

General Use
Industrial, Precision Grinding

Material
Cast Iron Body, Alloy Components

Type
Universal Cylindrical

Capacity
Maximum Grinding Diameter: 200 mm

Weight (kg)
Approx. 1800 kg

Computerized
No

Automatic
Semi-Automatic

Control System
Manual with Electrical Controls

Drive Type
Belt Drive

Grinding Diameter
10 mm - 200 mm

Grinding Length
Max 600 mm

Spindle Speed
1400 RPM

Grinding Wheel Size
350 mm x 32 mm x 127 mm

Voltage
415V, 3 Phase

Dimension (L*W*H)
2250 mm x 1250 mm x 1500 mm

Feature
High Precision, Rigid Design, Easy Operation

Color
Industrial Grey / Green

About G Rastelli R7A Cylindrical Grinding Machine

Make - G. Rastelli (Italy)

Model - R7 A

Center Height - 165 mm

Max. Job Diameter - 320 mm

Max. Length of Job - 950 mm

Grinding Wheel Size - Diameter 400 mm x 63.5 mm Width

Work-Head Speeds - 25 rpm to 280 rpm

- Features like Plunge Grinding, Delay, Hydraulic Tail-Stock etc.

- Equipped with MARPOSS In-Process Gauging System.

- Machine is in excellent working condition.

Video link - https://youtu.be/JQ2S8LaLuzs

High Precision and Versatility

The R7A model offers a universal cylindrical grinding capacity, suitable for complex industrial applications. Its work head can swivel at 45, enabling multi-angle grinding, while the machines rigid cast iron body and alloy components maintain dimensional accuracy and structural stability during operation.

Integrated Coolant and Manual Controls

Featuring an integrated coolant system, the R7A effectively dissipates heat and reduces friction, which results in consistent surface finish and extended tool life. Manual electrical controls are user-friendly, with semi-automatic operational capability, making it practical for skilled machinists.

Robust Construction and Application

With a center height of 135 mm, substantial table traverse of 700 mm, and a maximum weight handling capacity of 80 kg, the R7A suits a range of industrial grinding tasks. Its built-in rigidity and precision engineering ensure seamless processing of both small and large workpieces.

FAQs of G Rastelli R7A Cylindrical Grinding Machine:

Q: How does the work head swivel function enhance grinding operations on the R7A Cylindrical Grinding Machine?

A: The 45 work head swivel allows users to adjust the grinding approach for various angular profiles, increasing flexibility for precision grinding tasks and accommodating diverse workpiece geometries.

Q: What types of materials and components can be processed with the R7A machine?

A: The R7A is designed mainly for cast iron bodies and alloy components. Its universal cylindrical grinding capacity makes it suitable for shafts, bearings, pins, and other cylindrical items used in industrial settings.

Q: When should the integrated coolant system be used during grinding?

A: The coolant system should be active during all grinding processes, particularly when cutting at higher spindle speeds or working with temperature-sensitive materials, to maintain surface integrity and prolong wheel life.

Q: Where is this machine best utilized in the industry?

A: The R7A is particularly effective in manufacturing workshops, heavy engineering plants, and industrial settings where high-precision cylindrical grinding of medium-to-large components is required.

Q: What is the process for setting up the machine for a new workpiece?

A: To set up for a new workpiece, secure the item between the center and tailstock, adjust the work head swivel as needed, set the grinding wheel speed, and verify coolant flow. Always refer to the manual for specific guidelines on positioning and safety steps.

Q: How does the semi-automatic manual control system benefit operators?

A: The semi-automatic control allows for convenient manual adjustments while incorporating electrical assistance for functions like wheel travel and spindle operation, balancing precision with operational efficiency.

Q: What are the primary benefits of using the G Rastelli R7A for industrial grinding applications?

A: Users benefit from the machines high precision, robust build, easy-to-use controls, integrated coolant system, and adaptability to different workpiece sizesall contributing to improved productivity and consistent grinding results.

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