S20
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The Compact for small precision components. Key data The S20 is a universal cylindrical grinding machine with electromechanical drives for the production of small workpieces. It has a distance between centres of 400 / 650 mm and a centre height of 100 mm. It can machine workpieces with a maximum weight of 20 kg. A member of the UNITED GRINDIN

TECHNOLOGY LEADER CUSTOMER FOCUS SOPHISTICATED PROCESSES PRECISION The Art of Grinding. TECHNOLOGY LEADER EFFICIENCY PRECISION GLOBAL CUSTOMER FOCUS SOPHISTICATED PROCESSES Fritz Studer AG The name STUDER stands for more than 100 years of experience in the development and production of precision cylindrical grinding machines. «The Art of Grinding.» is our passion, highest precision is our aim and top Swiss quality is our benchmark. Our product line includes both standard machines, as well as complex system solutions in high-precision cylindrical grinding for machining small and medium-sized...

S20 If you also want to grind automatically with a conventional machine, you need look no further than the S20. Pre-installed automatic grinding cycles ensure efficient grinding. The machine table with a swivelling range of up to 30 deg enables high-precision taper grinding. The S20 is also very compact and offers an advantageous price-performance ratio.

Characteristics Dimensions D istance between centres 400/650 mm (15.7"/25.6") Height of centres 100 mm (3.94") Maximum workpiece weight 20 kg (44 lbs) Cross slide with wheelhead for external grinding with grinding wheel on the right and location area for the internal grinding unit (optional) Wheelhead with 15 and 30 deg manual swivel Table with swivelling range of: –– up to  30 deg 400 mm distance between centres –– up to 15 deg 650 mm distance between centres Workhead with hydrodynamic bearing for grinding between fixed centres or with rotating spindle Tailstock with adjustable centre...

Automatic grinding cycles for plunge and traverse grinding operations Automatic grinding cycle with automatic cut-out: –– Rapid in-feed –– Grinding feed –– Spark-out Rapid retraction of feed handwheel to the preset grinding allowance Plunge grinding and travel grinding with or without rapid infeed Compact design Varied range of accessories The Universal Cylindrical Grinding Machine with electromechanical drives for the production of small workpieces. The S20 is designed for the grinding of workpieces in single-component or small series production runs. It can be used in any sector where...

• Flexible • Compact • Internal grinding attachment The external wheelhead with the grinding wheel on the right is mounted on the cross slide. The wheelhead can be adjusted to fixed settings, with swivel angles of 0, 15 and 30 deg. The hydrodynamic plain bearing on the external wheelhead guarantees high run-out with minimal maintenance over many years. It is wearfree and low maintenance. Clearance does not need to be set. The run-out of the wheelhead is outstanding. Belt-driven spindles are used for the internal grinding attachment. Nominal speeds: 20  000, 40  and 60  rpm. The internal...

• Grinding between centres and live spindle grinding • High roundness precision The workhead enables grinding between fixed centres and with a rotating spindle. The powerful workhead spindle, relieved from belt tension, rotates in a hydrodynamic multi-surface plain bearing. Roundness in live spindle grinding operations is 0,0003 mm (0.000,012"), with the option of 0,0002 mm (0.000,008"). Workhead drive: Stepped AC motor Frequency converter for stepless drive (optional) • High stability • Adjustable centre pressure • Cylindricity correction m max = 20 kg 3 Permissible weight on the workhead...

Machine base The special-cast strongly ribbed machine base has a hydraulic concrete substructure. Damping elements between the machine base and the substructure ensure optimal absorption of external vibrations. • Vibration damping Cross and longitudinal slide 1 The slides rest completely on the machine base guides over the entire travel range. They benefit from the excellent straightness of the generating line, i.e. 0,0015 mm (0.000,06") over a measured length of 380 mm (14.9")! One of the outstanding features of the cross slide with pretensioned needle guides is its exceptional...

Infinitely variable feed. The cross slide is fitted with a low-maintenance hydraulic rapid approach. The pretensioned needle guides ensure stickslip-free fine adjustment. High touching speeds and time savings are ensured by the Sensitron contact control unit (optional). • • • Rapid-response hydraulics with fast reverse Hydraulic unit outside the machine Second, slow feed speed (optional) • Longitudinal feed can be switched between manual and automatic • Well-tried mechanics The drive for the longitudinal axis ensues via a handwheel, with an adjustment range of 15 mm (0.59") per rotation or...

Machine control and operation 1 • Control cabinet EMV-tested • Ergonomically arranged controls The control cabinet is fixed to the machine, making it ready for operation immediately. The control unit is reliable and maintenance-free. The electrical equipment complies with the relevant safety norms and is EMV-tested. The clear device layout guarantees optimum ease of operation. Automatic grinding cycle with automatic cut-out • Rapid infeed • Grinding feed • Spark-out • Rapid retraction of rapid infeed and feed handwheel to the preset grinding allowance 1 Machine control with position...

Customer Care STUDER cylindrical grinding machines should fulfil the customer's requirements for as long as possible, work cost-effectively, function reliably and be available at all times. From «start up» through to «retrofit» – our Customer Care is there for you throughout the working life of your machine. 30 professional helplines and more than 60 service technicians are available in your area, wherever you are in the world. Commissioning Warranty extension We will provide you with fast, uncomplicated support. We will help to increase your productivity. We work professionally, reliably...