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KELLENBERGER VARIA 800-843-8801 www.Hardinge.com Cylindrical Grinding Systems
KELLENBERGERVARIA
800-843-8801www.Hardinge.com
Cylindrical Grinding Systems
STANDARD FEATURES
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Machine
• The new VARIA from Kellenberger combines functional design with high-precision technology.• Hydrostatic guides guarantee maximum dimensional accuracy in grinding tasks with interpolating axes.• High positioning speeds and accuracies are assured by direct drives for the rotary axes.• Generous X and Z axes strokes in combination with the platform concept for grinding head positions and dressing systems ensure universality and allow application-specific configurations.• The proven integral transportation concept (hook machine) has been retained and reduces machine commissioning times and ensures a compact installation area.• Durable hydrostatic guides and energy-efficient concepts guarantee a highly secure capital investment.
Designed and built in Switzerland
VARIA – evolution
Systematically optimised proven elements, e.g. the hydrostatic guide concept, combined with newly developed components such as the automatic cylinder correction system and synchronous tailstock provide a con-temporary platform for flexibly satisfying all the varied requirements of our customers.
THE NEW UNIVERSALCYLINDRICAL GRINDING MACHINE
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HydrostaticsThe hydrostatic guideways and the systematic separation of the machine base from heat and vibration-generating components guarantee the highest in precision and productivity.
All movements in the X and Z axes are practically friction-free at all speeds.
The new VARIA from Kellenberger unitesfunctional design with high-precision technology..
Hydrostatic B axisFull-fledged NC axis with pre-tensioned hydrostatic guideway and direct drive. The pre-tensioned hydrostatics are the basis for higher accuracy and better surface quality. Steps of 0.0001 degrees can be traveled with ease.
Direct Drive SystemThe drive system based on a water-cooled high-torque motor guarantees a high level of torque.
A high-resolution rotary encoder is in-tegrated in the absolute measurement system and requires no referencing.
A SUCCESSFUL CONCEPTEVEN BETTER
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LARGE WORK SPACE – UNIQUE TABLE CONCEPT
The machine table has been considerably extended so it allows unmatched, optimal positioning of the grinding wheel and a larger travel distance, but also many machining options and application-specific configurations.
FUNCTIONAL MACHINE CASING
The increased sheet metal thickness means even more process reliability, allowing larger internal grinding wheel diameter of up to 125 mm. With their large viewing windows, the generously-sized doors allow optimum control over the work process and make it easier to access the work space. The genuine glass laminated safety panes require very little maintenance.
COMPACT AND MAINTENANCE-FRIENDLY
Elements such as the power supply, electrical cabinet, and a central connection point for lubricating coolant, water cooling system, and compressed air were all integrated into the casing. Service and maintenance doors for unimpeded access to machine components are integrated into the back.
OPTIMIZED ENERGY MANAGEMENT
Performance-optimized central cooling system. Automated procedures for switching on and off. Energy-efficient low-pressure hydrostatics.
EASY COMMISSIONING
The integrated transportation concept (hook machine) shortens commissioning times considerably.
WORKHEAD
Robust, rigid construction on a strong base. Powerful drive performance. Infinitely variable spindle speed. Direct drive for heavy chuck parts. The airlock seal prevents the penetration of dirt and water and the formation of condensation.
TAILSTOCK
The construction of the tailstock is generous and sturdy in its dimensions. The nitrided sleeve is mounted in robust linear bearings. Further options are a synchronous tailstock and a automated cylindricity corrections.
HEIDENHAIN GRINDplus 640 / KEL-SOFT
The perfectly coordinated interaction between the 3D KELSOFT software and the hardware produces optimal results for out-of-round grinding.
NON-ROUND GRINDING
Out-of-round grinding of any shape is even more productive, with increased precision at the same time due to hydrostatic guide-ways and direct workhead. This applies to small and large workpieces alike.
Universal Wheelheads The universal wheelhead makes it possible to cover the different needs of users. In addition to external cylind-rical, face and internal grinding, today there is an increase in demand for the use of 2–3 internal grinding spindles or the option of thread or out-of-round grinding. Grinding in one setting allows shorter throughput times and considerably raises the quality of the workpieces at the same time.
Diagonal Wheelheads Diagonal wheelheads offer the option of rough and finish-grinding in one setting. With the additional use of HF internal grinding spindles even universal external, face and internal grinding are possible.
Tandem WheelheadsThe tandem wheelheads are designed to allow straight and angular plunge grinding work all in the same setting, without any collisions. With an addi-tional internal grinding spindle, it is even possible to machine bore holes. Applications even exist with up to 4 grinding wheels.
Pivotable Dressing System Flexible and optimum dressing pro-cess for workpiece, tool and material-specific coordination. Sharp grinding wheels are essential for high quality. New concepts for reducing setup time.
WHEELHEAD EXPANSIONMORE THAN 30 VARIATIONS
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CONTROLS
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HeidenhainGRINDplus 640
The newest in Heidenhain hardware is the basis for meeting future requirements. Higher computing power produces higher productivity and quality.
• Kellenberger user interface with graphic programming and diagnostic support, including integrated remote servicing. 15” TFT monitor with softkeys and enhanced display of process data. • Heidenhain interface with user- controlled ISO programming and selective help graphics.• Reduction of cycle times by up to 40%.• Axis control in the nano-range.• Higher machining speeds for non- circular grinding with improved accuracy.• Diagnostic possibilities for axis measurement systems, converters and bus systems.• The height-adjustable keyboard also has a mobile hand panel with handwheel improving ergonomics.
Fanuc 3liOptionally, the VARIA can be equipped with the Fanuc 3li.
KEL-PROG
Dialog-guided ISO program/cycleselector via softkeys.
KEL-GRAPH
Graphic programming/cylinder, cones/ DXF-import via KEL-ASSIST/collision monitor and visualization of the grinding process.
KEL-TOOL
Tool administration/local and global dressing devices/standard wheel definition.
SPECIFICATIONS
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Distance between centres 39.37” / 62.99” (1000 / 1600mm)
Travel: Z-axis 46.06” / 65.75” (1170 / 1670mm)
Travel: X-axis 14.37” (365mm)Z-axis Rapid speed 20 m/minX-axis Rapid speed 10m/minB-axis Swiveling range 240ºB-axis Rapid speed 0.5 (1/sec)Motor output Wheelhead 13.41HP (10 kW) All specifications and designs are subject to alterations without notice
Motor output Internal grinding 20.11HP (15 kW)Center height 7.87” / 9.84” / 11.81”
(200 / 250 / 300mm)Weight of workpiecebetween centers
330.69 / 661.39 lbs (150 / 300 kg)
Load on chucked work 118 / 236.02 / 553.17 ft lb(160 / 320 / 750 Nm)
Space required 145.67” x 86.61” / 185.04” x 86.61”(3700 x 2200 / 4700 x 2200mm)
VARIA – evolution
Systematically optimised proven elements, e.g. the hydrostatic guide concept, combined with newly developed components such as the automatic cylinder correction system and synchronous tailstock provide a con-temporary platform for flexibly satisfying all the varied requirements of our customers.
All prices and specifications are subject to change without notice. All marks indicated by ® and ™ are trademarks of their respective owners. #1507A© Hardinge Inc. • 03/18
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Hardinge is a leading international provider of advanced metal-cutting solutions. We provide a full spectrum of highly reliable CNC turning, milling, and grinding machines as well as technologically advanced workholding accessories.
The diverse products we offer enable us to support a variety of market applications in industries including aerospace, agricultural, automotive, construction, consumer products, defense, energy, medical, technology, transportation and more.
We’ve developed a strong global presence with manufacturing operations in North America, Europe, and Asia. Hardinge applies its engineering and applications expertise to provide your company with the right machine tool solution and support every time.
Hardinge Companies Worldwide
AmericasPennsylvaniaHardinge Corporate1235 Westlakes DriveSuite 410Berwyn, PA 19312
New YorkHardinge One Hardinge DriveElmira, NY 14903P. 800-843-8801E. [email protected]
IllinioisHardinge1524 Davis RoadElgin, IL 60123P. 800.843.8801
AsiaChinaHardinge Machine(Shanghai)Co. Ltd.1388 East Kangqiao RoadPudong , Shanghai 201319P. 0086 21 3810 8686
TaiwanHardinge Taiwan Precision Machinery Limited4 Tzu Chiang 3rd RoadNan Tou City 540TaiwanP. 886 49 2260 536E. [email protected]
EuropeFranceJones & Shipman SARL8 Allee des Ginkgos BP 112-69672Bron Cedex, France
GermanyHardinge GmbHFichtenhain A 13c47807 KrefeldP. 49 2151 49649 10E. [email protected]
SwitzerlandL. Kellenberger & Co. AGHeiligkreuzstrasse 28CH 9008 St. GallenSwitzerlandP. 41 71 2429111E. [email protected]
United KingdomJones & ShipmanHardinge Ltd.Murray Field RoadLeicester LE3 1UWP. 44 116 201 3000E. [email protected]
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