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.
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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
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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