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G. Rastelli R5A Cylindrical Grinder

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G. Rastelli R5A Cylindrical Grinder Specification

Product Type
Cylindrical Grinder

General Use
Precision Grinding of Cylindrical Surfaces

Material
Cast Iron, Steel

Type
Universal

Capacity
180 mm (Grinding Diameter), 630 mm (Grinding Length)

Weight (kg)
1600

Computerized
No

Automatic
Semi-Automatic

Control System
Manual

Drive Type
Mechanical

Grinding Diameter
180 mm

Grinding Length
630 mm

Spindle Speed
1630 RPM

Grinding Wheel Size
350 x 127 x 51 mm

Voltage
415 V

Dimension (L*W*H)
2100 x 1300 x 1400 mm

Feature
High Precision, Robust Design, Low Maintenance

Color
Light Blue / Grey

Internal Grinding Attachment
Available

Max Distance Between Centers
630 mm

Lubrication System
Centralized

Table Swivel
+/- 7 Degrees

Wheel Head Motor
2 HP

Work Head Speed
38 to 250 RPM (Infinitely Variable)

Chuck Size
150 mm

Installed Power
4 kW

Coolant System
Provided

Surface Finish Achievable
0.5 Microns

Minimum Increment
0.002 mm

Tailstock Quill Travel
35 mm

G. Rastelli R5A Cylindrical Grinder About

Make - G. Rastelli (Italy)

Model - R5A

Center Height - 130 mm

Max. Job Diameter - 250 mm

Max. Length of Job - 500 mm

Grinding Wheel Size - Diameter 400 mm x 50 mm Width

Work-Head Speeds - 50 rpm to 490 rpm

- Equipped with MARPSS make In-Process Gauge.

- Machine has lots of accessories with it.

- Machine is in excellent working condition.

video link - https://youtu.be/pXzeIgGfasI

High-Precision Performance

The G. Rastelli R5A is built to achieve exceptional accuracy, making it ideal for precision grinding of cylindrical workpieces. Its minimum increment of 0.002 mm and achievable surface finish of 0.5 microns ensure outstanding results for industries requiring fine tolerances and optimal smoothness.

Versatile Operational Capacity

With a grinding diameter of up to 180 mm and a maximum grinding length of 630 mm, this cylindrical grinder accommodates a variety of applications. The table can swivel +/- 7 degrees for angular operations, while the infinitely variable speed work head and internal grinding attachment support both external and internal grinding tasks.

Reliable Design and User Convenience

Manufactured in Italy with robust cast iron construction, the R5A offers dependable performance and long service life. Features like the centralized lubrication system, semi-automatic controls, mechanical drive, and efficient coolant system deliver maximum convenience and minimize maintenance needs for operators.

FAQs of G. Rastelli R5A Cylindrical Grinder:

Q: How can the G. Rastelli R5A Cylindrical Grinder be used for internal grinding operations?

A: The R5A is equipped with an internal grinding attachment, allowing users to perform both external and internal cylindrical grinding processes on various components, enhancing its versatility for different machining tasks.

Q: What is the benefit of the infinitely variable work head speed?

A: The infinitely variable work head speed, ranging from 38 to 250 RPM, enables precise adjustment for different material types and grinding requirements, optimizing surface finish and improving overall grinding efficiency.

Q: Where can the G. Rastelli R5A be installed and what are its space considerations?

A: The machines dimensions are 2100 x 1300 x 1400 mm, which makes it suitable for industrial workshops and manufacturing facilities with adequate floor space for installation and safe operation.

Q: What is the process for achieving high surface finish on this grinder?

A: With advanced control over work head speed, a 2 HP grinding wheel motor, and a coolant system, the R5A can achieve a surface finish as fine as 0.5 microns. The precise table swivel and minimum increment of 0.002 mm further enhance finish quality.

Q: When should the lubrication and coolant systems be checked?

A: Regular checks of the centralized lubrication and provided coolant system should be performed as per the maintenance schedule to ensure consistent performance, reduce wear, and prolong machine lifespan.

Q: How does the robust design of the R5A benefit long-term usage?

A: Constructed with durable cast iron and featuring a reliable mechanical drive, the R5A is designed to minimize vibration, withstand heavy-duty industrial use, and require less frequent maintenance, ensuring stability over years of operation.

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