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UNITED GRINDING Group Products
United Grinding Group Management AG
Internal grinding machines

STUDER S122

State-of-the-art technology, compactly packaged in a production internal cylindrical grinding machine in a class of its own – that's the new STUDER S122. Workpieces up to 120 mm (4.7") in length can be machined. The grinding length is a maximum of 110 mm (4.3"). Up to 3 grinding spindles can be used in a parallel arrangement. One of these can take an external grinding wheel. The basis for the machine's legendary precision is the Granitan® machine bed and the StuderGuide® guide system for the X- and Z-axis.
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S121
S121
Internal universal
United Grinding Group Management AG
Internal grinding machines
S121
The S121 universal internal cylindrical grinding machine has an exceptional price/performance ratio and is the ideal machine for internal, surface and external grinding of chuck components. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guideway system, high-precision axis drives with linear motors, a swivel-in dressing unit, etc. The S121 is the ideal machine for a wide range of internal grinding applications. Many workpieces are in the areas of machine tools, drive elements, aerospace, die and mold.

Precision is the result of perfect interaction between a large number of different factors. The basis is the Granitan® S103 machine bed with its excellent cushioning and thermal behavior. The modules are ideally suited to each other and produced with the customary STUDER precision. The large distance between the guideways and the very rigidly constructed slides form the basis for the precision and productivity of this machine. All components involved in defining precision are temperature-stabilized.
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STUDER S110
STUDER S110
Internal production
United Grinding Group Management AG
Internal grinding machines
STUDER S110
The S110, a different very compact machine concept. The workpiece is moved on the cross-slide, while the grinding spindles are mounted in a fixed position to the base of the machine. This guarantees stability, offers good accessibility for set-up or workpiece change, and is easily automatable. The spindle set-up, with up to 3 HF grinding spindles in a linear arrangement, can be optimally designed to meet customer requirements. The ideal machine for chuck applications for individual components up to small-batch production. A cost-effective solution for high-precision automated grinding can be achieved with the optional, fully integrated automatic loading and unloading system.
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STUDER S120
STUDER S120
Internal grinding machine
United Grinding Group Management AG
Internal grinding machines
STUDER S120
The S120 is based on the same machine concept as the S110, but is designed for larger and longer workpieces. The spindle set-up, with up to 3 HF grinding spindles in a linear arrangement, can be optimally designed to meet customer requirements. The ideal grinding machine for internal, face, thread and taper grinding on long workpieces up to approx. 650mm in length, e.g. for the machining of the ends of machine spindles.
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STUDER S121 Radius
STUDER S121 Radius
Internal radius
United Grinding Group Management AG
Internal grinding machines
STUDER S121 Radius
The S121 radius internal cylindrical grinding machine has an exceptional price/performance ratio and is the ideal machine for internal, face and external grinding of chuck components. It has a host of sophisticated technical features such as the revolutionary StuderGuide ® guideway system, high-precision axis drives with linear motors, a fully automatic B-axis with direct drive, etc.

The S121 is especially suitable for grinding complex workpieces from very hard materials such as tungsten carbide, ceramic and sapphire as well as for general grinding tasks. Optimal stability and rigidity enable diameters, cones and transitional radii (ground using the pendulum method through interpolation of the B and X/Z axes) to be ground to a polished surface quality. The machines are ideal for the manufacture of dies, especially in the packaging industry, where tungsten carbide and ceramic are primarily processed. Hydraulic components such as axial pump pistons, guide plates and housings made of hardened steel, cast iron and copper can also be produced. Other fields are the production of complex workpieces with several tapers greater than 20 to 90 deg in a single clamping, where the main applications are in the watch and medical industries with extra-hard materials such as industrial ceramic, sapphire and tungsten carbide, as well as the manufacture of human implants for shoulders, knees and hips from ceramic and titanium.

Advantages:

◾ It can be configured for any imaginable internal grinding task
◾High flexibility
◾Compact with excellent accessibility to the inside of the machine from three or four sides (for maintenance and service)
◾Short set-up and changeover times thanks to well thought-through set-up philosophy
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STUDER S131
STUDER S131
Internal universal
United Grinding Group Management AG
Internal grinding machines
STUDER S131
The S131 is a CNC universal internal cylindrical grinding machine of the latest generation. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guide system, high-precision axis drives with linear motors, extremely fast direct drive of the grinding spindle turret, automatic swiveling of the workpiece table etc.

The workpiece length is 300 mm (11.8"), the maximum internal grinding length is 160 mm (6.3") and the external length is 125 mm (4.9"). The S131 is the ideal machine for grinding flange parts. Many workpieces are in the areas of machine tools, drive elements, aerospace and toolmaking.
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STUDER S131 Radius
STUDER S131 Radius
Internal radius
United Grinding Group Management AG
Internal grinding machines
STUDER S131 Radius
The S131 is a radius internal cylindrical grinding machine of the latest generation. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guideway system, high-precision axis drives with linear motors, a fully automatic B-axis with direct drive, etc.

The S131 is especially suitable for grinding complex workpieces from very hard materials such as tungsten carbide, ceramic and sapphire as well as for general grinding tasks. Optimal stability and rigidity enable diameters, cones and transitional radii (ground using the pendulum method through interpolation of the B and X/Z axes) to be ground to a polished surface quality. The machines are ideal for the manufacture of dies, especially in the packaging industry, where tungsten carbide and ceramic are primarily processed. Hydraulic components such as axial pump pistons, guide plates and housings made of hardened steel, cast iron and copper can also be produced. Other fields are the production of complex workpieces with several tapers greater than 20 to 90 deg in a single clamping, where the main applications are in the watch and medical industries with extra-hard materials such as industrial ceramic, sapphire and tungsten carbide, as well as the manufacture of human implants for shoulders, knees and hips from ceramic and titanium.

Advantages:

◾ It can be configured for any imaginable internal grinding task
◾High flexibility
◾Compact with excellent accessibility to the inside of the machinefrom three or four sides (for maintenance and service)
◾Short set-up and changeover times thanks to well thought-through set-up philosophy
Product details Homepage Product request
STUDER S141
STUDER S141
Internal universal
United Grinding Group Management AG
Internal grinding machines
STUDER S141
The S141 is a CNC universal internal cylindrical grinding machine of the latest generation. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guide system, high-precision axis drives with linear motors, extremely fast direct drive of the grinding spindle turret, automatic swiveling of the workpiece table etc.

Three sizes are available for workpiece lengths of 300 mm, 700 mm and 1300 mm (11.8", 27.5" and 51.1"). For all models the maximum internal grinding length is 250 mm (9.8") and the external length is 150 mm (5.9"). The S141 is the ideal machine for grinding spindle shafts, spindle housings, rotor shafts, axes or flange parts. Many workpieces are in the areas of machine tools, drive elements, aerospace and toolmaking.
Product details Homepage Product request
STUDER S141 Radius
STUDER S141 Radius
Internal radius
United Grinding Group Management AG
Internal grinding machines
STUDER S141 Radius
The S141 is a radius internal cylindrical grinding machine of the latest generation. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guideway system, high-precision axis drives with linear motors, a fully automatic B-axis with direct drive, etc.

The S141 is especially suitable for grinding complex workpieces from very hard materials such as tungsten carbide, ceramic and sapphire as well as for general grinding tasks. Optimal stability and rigidity enable diameters, cones and transitional radii (ground using the pendulum method through interpolation of the B and X/Z axes) to be ground to a polished surface quality. The machines are ideal for the manufacture of dies, especially in the packaging industry, where tungsten carbide and ceramic are primarily processed. Hydraulic components such as axial pump pistons, guide plates and housings made of hardened steel, cast iron and copper can also be produced. Other fields are the production of complex workpieces with several tapers greater than 20 to 90 deg in a single clamping, where the main applications are in the watch and medical industries with extra-hard materials such as industrial ceramic, sapphire and tungsten carbide, as well as the manufacture of human implants for shoulders, knees and hips from ceramic and titanium.

Advantages:

◾ It can be configured for any imaginable internal grinding task
◾High flexibility
◾Compact with excellent accessibility to the inside of the machinefrom three or four sides (for maintenance and service)
◾Short set-up and changeover times thanks to well thought-through set-up philosophy
Product details Homepage Product request
STUDER S151
STUDER S151
Internal universal
United Grinding Group Management AG
Internal grinding machines
STUDER S151
The S151 is a CNC universal internal cylindrical grinding machine of the latest generation. It has a host of sophisticated technical features such as the revolutionary StuderGuide® guide system, high-precision axis drives with linear motors, extremely fast direct drive of the grinding spindle turret, automatic swiveling of the workpiece table etc.

Two sizes are available for workpiece lengths 700 mm and 1300 mm (27.5" and 51.1"). For both models the maximum internal grinding length is 390 mm (15.3") and the external length is 150 mm (5.9"). The S151 is the ideal machine for grinding spindle shafts, spindle housings, rotor shafts, axes or flange parts. Many workpieces are in the areas of machine tools, drive elements, aerospace and toolmaking.
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