Generous X and Z axes strokes in combination with the platform concept for grinding head positions and dressing ... prov
KELLENBERGER GRINDING
VARIA Cylindrical Grinding Machine
Technology and design in perfect harmony
www.kellenberger.net
STANDARD FEATURES 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.
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THE NEW UNIVERSAL
CYLINDRICAL GRINDING MACHINE
The new VARIA from Kellenberger unites functional design with high-precision technology..
Hydrostatics
The hydrostatic guideways and the systematic separation of the machine base from heat and vibrationgenerating components guarantee the highest in precision and productivity. All movements in the X and Z axes are practically friction-free at all speeds.
Hydrostatic B axis
Full-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.
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Direct Drive System
The drive system based on a watercooled high-torque motor guarantees a high level of torque. A high-resolution rotary encoder is integrated in the absolute measurement system and requires no referencing.
A SUCCESSFUL CONCEPT EVEN BETTER
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 applicationspecific 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.
HEIDENHAIN GRINDplus 640 / KEL-SOFT
NON-ROUND GRINDING
The perfectly coordinated interaction between the 3D KELSOFT software and the hardware produces optimal results for out-of-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.
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.
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.
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.
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. 4
WHEELHEAD EXPANSION MORE THAN 30 VARIATIONS
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-ofround 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 Wheelheads
The 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.
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CONTROLS Heidenhain GRINDplus 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 usercontrolled ISO programming and selective help graphics. • Reduction of cycle times by up to 40%. • Axis control in the nano-range. • Higher machining speeds for noncircular 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.
KEL-PROG Dialog-guided ISO program/cycle selector via softkeys.
KEL-GRAPH Graphic programming/ cylinder, cones/ DXFimport via KEL-ASSIST/ collision monitor and visualization of the grinding process.
Fanuc 3li
Optionally, the VARIA can be equipped with the Fanuc 3li. KEL-TOOL Tool administration/ local and global dressing devices/standard wheel definition.
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SPECIFICATIONS
Distance between centres
39.37” / 62.99” (1000 / 1600mm)
Motor output Internal grinding
20.11HP (15 kW)
Center height
7.87” / 9.84” / 11.81” (200 / 250 / 300mm)
Travel: Z-axis
46.06” / 65.75” (1170 / 1670mm)
Travel: X-axis
14.37” (365mm)
Weight of workpiece between centers
330.69 / 661.39 lbs (150 / 300 kg)
Z-axis Rapid speed
20 m/min
Load on chucked work
X-axis Rapid speed
10m/min
118 / 236.02 / 553.17 ft lb (160 / 320 / 750 Nm)
B-axis Swiveling range
240º
Space required
B-axis Rapid speed
0.5 (1/sec)
145.67” x 86.61” / 185.04” x 86.61” (3700 x 2200 / 4700 x 2200mm)
Motor output Wheelhead
13.41HP (10 kW)
All specifications and designs are subject to alterations without notice
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.
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Wuhan, China Beijing, China
Elgin, Illinois
Traverse City, Michigan
Leicester, England
Noisy-Le-Sec, France
Elmira, New York
HARDINGE COMPANIES WORLDWIDE
Over the years, The Hardinge Group™ steadily diversified both its product offerings and operations. Today, the company has grown into a globally diversified player with manufacturing operations in North America, Europe and Asia. In addition to designing and building turning centers, and collets, Hardinge is a world leader in grinding solutions with the addition of the Kellenberger, Jones & Shipman, Hauser, Tschudin, Usach and Voumard brands to the Hardinge family. The company also designs and manufactures Bridgeport machining centers and other industrial products for a wide range of material cutting, turnkey automation and workholding needs. Expect more from your Hardinge products. Choose Hardinge precision and reliability for increased productivity and value! Call us today, we’ve got your answer.
Krefeld, Germany Erkrath, Germany St. Gallen, Switzerland
Xian, China
Shenyang, China
Shanghai, China
Hyderabad, India
Bron, France Nan Tou, Taiwan Biel, Switzerland
Chongqing, China Guangzhou, China
North America Hardinge Inc. General Information: 607-734-2281 Sales Fax: 607.734.8819 Workholding Fax: 607.734.3886 Service: 800.424.2440 www.hardinge.com Canada Canadian Hardinge Machine Tools Ltd. Tel: 800.468.5946 Fax: 607.734.8819 China Hardinge Machine (Shanghai) Co. Ltd. Hardinge China Limited Tel: 0086 21 38108686 Fax: 0086 21 38108681 Hardinge Precision Machinery (Jiaxing) Co., Ltd. Economic and Technology Development Zone Tel: 0573-82601088 Fax: 0573-82601988 Germany Hardinge GmbH Tel: (49) 2151 496490 Fax: (49) 2151 4964999
Jiaxing, China
Taiwan Hardinge Machine Tools B.V. Tel: 886 49 2260536 Fax: 886 49 2252203
[email protected] Switzerland L. Kellenberger & Co. AG Tel: +41 (0) 71 242 91 11 Fax: +41 (0) 71 242 92 22
[email protected] www.kellenberger.net L. Kellenberger & Co. AG Tel: +41 (0)32 344 11 52 Fax: +41 (0)32 341 13 93
[email protected] www.kellenberger.net United Kingdom Jones & Shipman Hardinge Tel: +44 (0) 116 2013000 Fax: +44 (0) 116 2013002
[email protected] www.jonesshipman.com
All specifications subject to change without notice. All marks indicated by ® and ™ are trademarks of their respective owners. #1507A • Litho in USA © Hardinge Inc. 2015 • November 2015
