About G. Rastelli R7A 1000 mm Universal Cylindrical Grinder
Make - G. Rastelli (Italy)
Model - R7A
Center Height - 165 mm
Max. Job Diameter - 320 mm
Max. Length of Job - 1000 mm
Grinding Wheel Size - Diameter 400 mm x 60 mm Width
Internal Grinding Spindle Diameter - 80 mm
Least Count of Wheel-Head Movement - 2 Microns (0.002 mm)
- Equipped with Internal Grinding Attachment.
- Complete with Wheel Dresser, Coolant Pump, etc.
- Machine is in excellent working condition.
Video Of The Machine -
https://youtu.be/wMMWmCZBFmE
Precision for Demanding ApplicationsThe R7A 1000 mm Universal Cylindrical Grinder provides superior accuracy and surface finish, making it ideal for high-precision metal grinding in manufacturing, repair shops, or tooling departments. Its sturdy construction and robust features ensure stability and performance for heavy-duty industrial tasks.
Ease of Operation and SafetyEquipped with manual control, semi-automatic functionality, and comprehensive safety guards, the grinder offers both versatility and user safety. Its well-calibrated feed mechanism, tailstock, and work head make setup straightforward, while built-in coolant and lubrication systems protect both operator and machine.
Designed for Efficiency and EnduranceThis cylindrical grinder accommodates workpieces up to 1000 mm in length and 320 mm in diameter, supporting operations with a 415 V/3 Phase power supply. The fusion of a powerful drive, automatic maintenance systems, and durable materials ensures an extended service life and dependable performance.
FAQs of G. Rastelli R7A 1000 mm Universal Cylindrical Grinder:
Q: How can the G. Rastelli R7A 1000 mm grinder be used for precision cylindrical grinding?
A: The R7A grinder is engineered to deliver high-precision cylindrical grinding by offering exact feed adjustments with a least count of 0.001 mm and stable workpiece positioning. Its manual controls, along with a rigid cast iron structure and automatic lubrication, help achieve consistent, accurate results suitable for fine metal finishing.
Q: What types of materials and workpieces are suitable for this cylindrical grinder?
A: This machine is ideal for grinding metals such as cast iron and alloy steel, with a maximum table load of 100 kg and a grinding diameter up to 320 mm. It supports a variety of components within the 1000 mm center distance for diverse applications in manufacturing and repair.
Q: When is it beneficial to use the R7A 1000 mm grinder instead of a smaller or non-universal model?
A: Choosing the R7A 1000 mm is advantageous when you require high surface finish accuracy (up to 0.5 microns) on large or heavy workpieces, or when you need to accommodate a broad range of part sizes thanks to its versatile table swivel, length capacity, and heavy-duty construction.
Q: Where is the G. Rastelli R7A 1000 mm grinder typically installed?
A: This machine is commonly found in industrial settings, such as manufacturing plants, tool rooms, or machinery repair workshops. Its dimensions and weight (approx. 2900 kg) make it best suited for stationary installation with adequate floor space.
Q: What is the process of setting up and operating this cylindrical grinder?
A: To set up the R7A, securely mount the workpiece between centers using MT4 and MT3 tapers, adjust the table and wheelhead as required, and configure the spindle speed (35 - 350 RPM). The built-in coolant and lubrication systems simplify operation, supporting smooth grinding and prolonged machine life.
Q: How does the automatic lubrication and built-in coolant system enhance performance?
A: Automatic lubrication minimizes wear on moving parts, while the built-in coolant system regulates grinding temperatures, reducing thermal distortion and extending tool life. These features ensure consistent performance and reduce maintenance needs, boosting overall productivity.
Q: What are the main benefits of choosing this model for your grinding operations?
A: The R7A 1000 mm offers high-precision grinding, robust construction, easy operation, and enhanced safety. Its versatility to handle various components, automatic maintenance systems, and heavy-duty performance make it a valuable asset for exporters, manufacturers, suppliers, and traders alike.