Studer S33 CNC Cylindrical Grinder –Fully Rebuilt
Rebuild Scope (Full List)
1. Machine disassembled to the extent required to perform all alignment procedures.
2. All way surfaces machined, scraped, ground, and fitted to full bearing.
3. Bed ways cleaned, wear material removed, machine-scraped and aligned to a true plain.
4. Table machine-scraped and aligned to bed ways; moglice applied to maintain wheelhead centerline.
5. Wheelhead saddle machined, scraped, and aligned to bed ways; Moglice used to maintain centerline.
6. Wheelhead cross slide machined, scraped, and aligned to top saddleways.
7. Wheelhead surveyed; spindle and spindle bearings evaluated.
8. X and Z axis ball screws surveyed and rebuilt.
9. X and Z axis ball screws precision-aligned using new thrust bearings.
10. New way wipers installed where applicable.
11. Lubrication system cleaned and flushed; new lines and metering units installed as required to ensure proper oiling. New pump installed.
12. Workhead disassembled and rear bearings replaced with new bearings.
13. Hydraulic system cleaned and inspected. New pump installed.
14. Way covers replaced with new.
15. Electrical system cleaned and inspected.
16. New wheelhead belts supplied and installed.
17. New valves and pumps were installed for the hydraulic system.
18. The drive is sent out for repair.
19. Complete reassembly and testing performed, including geometric verification and test grinding.
Machine Specifications
Center height: 175 mm
Distance between centers: 1000mm
Max workpiece weight: 150 kg
Wheelhead: OD / ID
CNC Control: Fanuc with Movomatic ES124
Dressing: diamond single-point
SBS Balancing System: Model SB-4500
Internal grinding spindle type 102540B with 40,000 rpm speed
Swiveling dressing attachment with 25,000 rpm speed
Frequency converter MAAS type SPS-9250
Pneumatic tailstock lift
Pneumatic upper-table lift
Longitudinal slide with rotary table swiveling up to 8.5”
Automatic B-axis turret wheelhead
Hirth gearing for thread and form grinding
Condition
This is not a touch-up or partial rebuild. It is a full mechanical and functional rebuild, performed by seller company with detailed attention to accuracy, alignment, and long-term performance.
Description
Up for sale is a completely rebuilt Studer S33 Universal Cylindrical Grinder, restored by seller company to a true, high-accuracy condition. This machine has undergone a thorough, documented rebuild process focused on geometric accuracy, full bearing surface restoration, and long-term reliability. Ideal for precision grinding applications in aerospace, medical, tooling, and high-tolerance manufacturing environments. This machine has been rebuilt to the new factory tolerance. There is a one-year warranty on machine alignment.