Cylindrical grinding machine

STUDER S30 -1

STUDER S30-1, manufactured in 2005, machine no. 019.3784 – universal cylindrical grinding machine, hydraulically controlled, for between-centers grinding and external grinding. Well-maintained, original condition, no indication of damage or weld repairs.

Included: Original operating manual from Fritz Studer AG (DE/EN/FR, including spare parts catalog and noise measurement report) and EC declaration of conformity, both issued for this machine number. According to this factory documentation, it is the version with a center distance of 1,000 mm.

EQUIPMENT
- Grinding spindle with external grinding wheel on the left, Ø 400 x 80 x Ø 127 mm, hydrodynamic plain bearings, mounting taper Ø 63 mm
- Workpiece spindle, swiveling 0-90°, MK 5, collet chucks W-25, 30-1,000 min-1 continuously variable via frequency converter
- Three-jaw chuck mounted, drive for between-centers grinding, centering point in the tailstock
- Tailstock MK 3, quill stroke 35 mm, adjustable spindle pressure, fine adjustment for roundness ± 40 µm
- Adjustable dressing device on the tailstock (dressing by hand; diamond is a wear part)
- Digital display Sony LD10 on swivel arm
- Hydraulic unit Wandfluh (CH), coolant supply with filtration and aerosol extraction
- Machine bed made of mineral cast Granitan S103
- 8 grinding wheel mounting flanges, including one balancing flange

IMPORTANT – WHAT IS NOT INCLUDED
This machine does NOT have an internal grinding attachment, NO belt spindles, and NO in-process measuring control. The series is prepared for these at the factory, but none of them are installed on this machine; available as accessories from STUDER. Grinding wheels are also not included in the scope of delivery. We only describe what we can document photographically.

TECHNICAL DATA (according to the operating manual for this machine)
- Center distance 1,000 mm, clamping length 1,030 mm, table stroke 1,050 mm
- Max. workpiece weight between centers 130 kg, table swivels 8.5°
- X: Rapid traverse 60 mm, plunge depth 3.4 mm in Ø, feed rate 0.012-6 mm/min, incremental feed from 0.001 mm
- Z: 50-5,500 mm/min, smallest automatic table stroke 1.5 mm
- Grinding spindle 1,670 / 2,110 min-1; machine's power rating: max. 35 m/s, wheel up to Ø 400 mm at 1,671 min-1, up to Ø 316 mm at 2,114 min-1
- Automatic hydraulic grinding cycle: rapid approach, feed 1 and 2, sparking 0-6 s, automatic shut-off
- Guaranteed working accuracy (factory specification): straightness 0.0025 mm over 400 mm, 0.004 mm over 650 mm; roundness in external grinding 0.0003 mm
- Operating hours 38,388.5 h; connection 400 V / 50 Hz, max. 13 kVA, air 5 bar; noise level ≤ 75 dB(A)
- Weight approx. 3,500 kg (factory brochure, 1,000 mm version), footprint approx. 2,735 x 1,970 mm
- Center height: will be remeasured and confirmed upon request

CONDITIONS
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Location: 16727 Velten near Berlin. Machine packed on a wooden pallet, delivery 1-2 working days after payment receipt. FCA Velten (Incoterms 2020), loading onto your truck by our staff included. Payment: 100% advance payment. Inspection possible with short notice by appointment. Demonstration and test grinding only by appointment: the machine is disconnected, setup will be carried out by an external service provider; we will agree on the effort and costs in advance.

Technical data according to manufacturer's documents and the included operating manual are provided as information; we will confirm individual values during the inspection or upon request. Offer subject to

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