The new CrankGrind from SCHAUDT is a machine designed for high-speed grinding of crankshafts. CrankGrind is a twin cross slide machine for grinding of crankshaft main and pin bearings. The twin cross slides facilitate high-speed grinding. This allows for the simultaneous machining of adjacent bearings with two grinding wheels due to greatly reduced minimum wheel spacing.
The bed of the machine is made of Granitan for thermal stability and dynamic vibration damping. Grinding speeds can go up to 200 m/s (39,000 ft./min.). The Z-axis guideways utilizes StuderGuide for accuracy and vibration damping. The X-axis is highly dynamic with vibration damping hydrostatic guideways with linear motors. The water and oil-proof dripping tray of the CrankGrind is directly integrated into the machine bed to eliminate possible tripping hazards and move the liquid back in the circulation.
Grinding length capacity is 650 mm or 25.6". Maximum grinding wheel dimension is 600 x 50 mm or 23.6" x 2.0". The CrankGrind is equipped with a ball bearing spindle with a direct drive motor and automatic wheel balancing. There are three different wheel guards available which are supporting customer orientated solutions. When grinding crankshaft pin bearings, an important requirement is for the grinding wheel diameter of 600 mm to have enough clearance.
The control is a Siemens Sinumerik 840D sl with the SCHAUDT WOP-G software for crankshaft grinding including a user-oriented set-up interface. Roundness measuring and correction with Fenar L can be performed directly in the machine with evaluation via WOP-G. Also, the software controls the coolant pressures and flow at different stages in the crankshaft grinding process. Feeds and speeds are controlled via a larger number of grinding steps during one plunge. Special grinding cycles for grinding shoulders, faces and radii are also a feature of the WOP-G.
Two workhead alternatives are available for the CrankGrind. As a standard, the machine has a table-mounted spindle with a direct drive servomotor. After releasing the clamping, the workhead can easily be moved on an air cushion. As an option, the workhead can be equipped with a larger motor with higher torque capability. Both variations are also available on a sliding axis to facilitate fast automatic loading and unloading of crankshafts.
The clamping force of the standard sliding tailstock of the CrankGrind is continuously adjustable. The design has been optimized to provide stiffness for supporting the crankshaft alongside fast tailstock positioning. An optional tailstock can be designed as a second workhead axis for larger crankshaft components.
Three dressing unit options are available: integrated in the tailstock with straight dresser, integrated in the tailstock with cup dresser and table mounted with cup dresser using the entire grinding length of 650 mm (25.6").
The coolant application of the CrankGrind comes with main coolant nozzles, lower coolant nozzles and cleaning nozzles optimized for laminar stream and low consumption of coolant. Also available are frequency-controlled coolant pumps for less power consumption.
The grinding wheels can be conveniently changed from the back of the machine without the need to climb inside the machine. The design also allows for manual loading without the use of a pedestal in front of the machine. The machine can also be fully automated using the loader hatch incorporated in the roof of the machine.
For more information contact:
UNITED GRINDING North America, Inc.
510 Earl Blvd.
Miamisburg, OH 45342
937-859-1975
info@grinding.com
www.grinding.com
Southwest
TX - Eastern
Charles Harter
CJ Harter & Son Machinery Inc.
550 Westcott, Suite 375
Houston, TX 77007
713-227-7221
harterhou@sbcglobal.nex
AR, LA
Steve Wherry
Cardinal Machinery
7535 Appling Center Dr.
Memphis, TN 38133
901-377-3107
s.wherry@cardinalmachinery.com
www.cardinalmachinery.com
NM
Mike Geoffroy
The Geoffroy Company, Inc.
5910 S. University Blvd, C-18 #211
Greenwood Village, CO 80121
303-756-3684
TGCIdenver@comcast.net
Southeast
AL, MS, TN, FL - Panhandle Only
Steve Wherry
Cardinal Machinery
7535 Appling Center Dr.
Memphis, TN 38133
901-377-3107
s.wherry@cardinalmachinery.com
www.cardinalmachinery.com
VA, NC, SC, GA
David Chesnutt
Methods Machine Tools, Inc.
13607 South Point Boulevard
Charlotte, NC 28273
704-587-0507
dchesnutt@methodsmachine.com
www.methodsmachine.com
Northeast
NY - All Except NYC & Long Island
Gordon Britton
Britton Machinery Sales, Inc.
330 Castlebar Rd.
Rochester, NY 14610
585-721-4160
gbritton@brittonmachinery.com
PA - Western
Mark Henne
Marcus Machinery
106 Bellefield Court
Gibsonia, PA 15044
412-862-0803
mark.henne@marcusmachinery.com
www.marcusmachinery.com
WV
Art Seyler
Ellison Technologies
5333 Muhlhauser Rd.
Hamilton, OH 45011
513-874-2736
aseyler@ellisontechnologies.com
www.ellisontechnologies.com
DE, MD, NJ, PA - Eastern, NY - NYC & Long Island
Chris Cowan
Tuckahoe Trading
94 N. Hamilton St.
Doylestown, PA 18901
215-345-9275
chris@tuckahoetrading.com
www.tuckahoetrading.com
Midwest
MN, ND, SD, IA - Northern, WI - Western
Dan Hales
Hales Machine Tool Inc.
2730 Niagara Lane North
Plymouth, MN 55447
763-553-1711
dhales@halesmachinetool.com
www.halesmachinetool.com
NE, IA - Southern
Ken Erickson
Erickson Machine Tools
409 Market Ave.
Story City, IA 50248
515-733-4361
ken@ericksonmachine.com
www.ericksonmachine.com
WI - Eastern
Bob Stoltz
Merwin Stoltz Company
N52 W13325 Falls Creek Court
Menomonee Falls, WI 53051
800-923-6255
bstoltz@dgisupply.com
www.merwin-stoltz.com
MO
David Smith
CJ Smith Machinery Company
2275 Cassens Dr., Suite 123
Fenton, MO 63026
636-349-7757
dsmith@cjsmith-machinery.com
www.cjsmith-machinery.com
MO, KS, IL - Southern
Bill Enright
Dynamic Machine Tools LTD
84 Hubble Drive, Suite 200
O'Fallon, MO 63368
636-329-9734
benright@dynamicmachinetool.com
www.dynamicmachinetool.com
IN, IL - Northern
Chris Tauber
Integrated Machinery Systems
101 North Prospect Ave.
Itasca, IL 60143
630-250-8305
chris.tauber@imscnc.com
www.imscnc.com
KY
John Stephenson
Tri-S
3 North Shaw Lane
Fort Thomas, KY 41075
859-380-5909
trisjohn@fuse.com
KY, OH
Art Seyler
Ellison Technologies
5333 Muhlhauser Rd.
Hamilton, OH 45011
513-874-2736
aseyler@ellisontechnologies.com
www.ellisontechnologies.com
MI
Brad Contrucci
Tooling Systems Sales
1782 Apple Ridge Court
Rochester Hills, MI 48306
248-656-2035
bradc@tssgrinding.com
www.toolingsystemssales.com
West
AZ
Richard Adams
Adams Machinery
215 S. Rockford Dr., Suite 101
Tempe, AZ 85281
480-968-3711
dick@adamsmachineryaz.com
www.adamsmachineryaz.com
CA - Southern
Jay Davis
DMARK Corporation
10552 Humbolt St.
Los Alamitos, CA 90720
562-799-9010
jdavis@dmarkcorp.com
www.dmarkcorp.com
NV, CA - Northern
John Franchuk
Die Mold Machinery
300F Danville Boulevard #323
Alamo, CA 94507
925-831-0920
john@diemoldmachinery.com
www.diemoldmachinery.com
CO, WY - Eastern
Mike Geoffroy
The Geoffroy Company, Inc.
5910 S. University Blvd, C-18 #211
Greenwood Village, CO 80121
303-756-3684
TGCIdenver@comcast.net
MT, UT, ID - Southern, WY - Western
James Grisley
JM Grisley Machine Tools, Inc.
1485 South 300 West St.
Salt Lake City, UT 84115
801-486-7519
sales@jmgrisley.com
www.jmgrisley.com
OR, WA, ID - Northern
Gary Anderegg
Machine Toolworks, Inc.
14600 Interurban Avenue South
Tukwila, WA 98168
206-575-3390
ganderegg@machinetoolworks.com
www.machinetoolworks.com