Here is the preview url to copy
+

https://www.fivesgroup.com/preview
Skip to main content

Cincinnati
Viking / RK

centerless grinding

When Cincinnati developed the centerless grinding process, the goal was to offer superior machine accuracy, reliability and ease of use. That’s exactly what Cincinnati centerless machines provide. With thousands of international customers, across numerous industries, the renowned Cincinnati centerless grinders set the standard for centerless grinding.

Superior rigidity and stiffness

Built on an epoxy granite or cast iron base, selected specifically for superior rigidity, vibration dampening, tight tolerancing and thermal characteristics, the Cincinnati Viking and RK centerless grinders are the stiffest machines available. High stiffness ensures optimum accuracy - even while achieving the fastest possible production and high stock removal rates.

Check out our Cincinnati Viking / RK flyer to learn more.

Download

 

    high precision for tight tolerances

    With the ability to grind to very tight tolerances, the Cincinnati Viking and RK grinders negate the need for multiple grind passes. In addition, long, round bars can be ground from beginning to end with the same tolerance. This helps eliminate waste and, ultimately, saves you time and money.

    High stiffness also enables these machines to achieve compensation adjustments of 0.001 mm. This level of precision means less wheel wear and a much better surface finish.

    A complete, automated solution for ultimate accuracy

    We can provide the expertise and the automation to make your production process as efficient as possible. We offer turnkey solutions that include components to automate your grinding operation, including infeed / outfeed systems and a gauging system.

    The Cincinnati Viking and RK can be integrated easily into new and existing product lines. In addition, they are compatible with a number of different control systems, including Landis 6400, Allen Bradley, Siemens and Fanuc.

    flexibility to GRIND A WIDE VARIETY OF MATERIALS

    The Cincinnati Viking and RK centerless grinding machines can use super-abrasive (CBN) as well as conventional wheels. This opens up the possibility to grind a wider variety of materials, including stainless steel, inconel and titanium.

    These machines are ideal for the grinding of high precision parts used in the medical and aerospace industries. They are also widely used in the automotive, agricultural, appliance, power tools and fluid power sectors.

    Additional key machine features include:

    • 0.001 mm machine resolution
    • Single screw swivel adjustment
    • Arranged for plunge-feed or through-feed operation
    • Anti-friction slide-way systems
    • ‘Twin-Grip’, dual support anti-friction spindle bearings
    • Thermally stable bed design
    • Best-in-class, 3,000,000+ lb/in static stiffness
    • Fast and easy set-up and wheel changeover    

    CONTINUAL AFTERMARKET SUPPORT

    In addition to building new machines, we provide after sales service as well as service of existing machines. Also, we can retool or refurbish existing machines, and pride ourselves on our after-market support. 

    specifications

     Cincinnati VikingCincinnati RK
    WORKING CAPACITY 

    Min. / Max. outer diameter

    1.2 - 80 mm

    12.7 - 152 mm

    grinding wheel 

    Sizes / width

    250 mm

    508 mm

    Max. / Min. OD

    450 / 300 mm

    610 / 431 mm

    Motor power

    15 / 30 kW

    37 / 55 kW

    Peripheral speed

    45 (60) m/sec

    45 (60) m/sec

    Regulating Wheel 

    Sizes / width

    250 mm

    508 mm

    Max. / Min. OD

    355 / 255 mm

    355 / 279 mm

    Motor power

    3.3 kW

    3.3 kW

    Operating speed

    10 - 600 rpm

    10 - 300 rpm

    Infeeds 

    Max. plunge infeed

    1,500 mm/min

    1,500 mm/min

    Min. plunge infeed

    0.1 mm/min

    0.1 mm/min

    Dimensions 

    Dimensions (W x D x H)

    3,100 x 2,700 x 2,300 mm

    3,300 x 2,800 x 2,700 mm

    Machine weight

    9,072 kg

    11,794 kg

     Cincinnati VikingCincinnati RK
    WORKING CAPACITY 

    Min. / Max. outer diameter

    0.05” - 3.2”

    0.5” - 6”

    grinding wheel 

    Sizes / width

    9.8”

    20”

    Max. / Min. OD

    17.7” / 11.8”

    24 “ / 17”

    Motor power

    15 / 30 kW

    37 / 55 kW

    Peripheral speed

    148 ft/sec

    148 ft/sec

    Regulating Wheel 

    Sizes / width

    9.8”

    20”

    Max. / Min. OD

    14” / 10”

    14” / 11”

    Motor power

    3.3 kW

    3.3 kW

    Operating speed

    10 - 600 rpm

    10 - 300 rpm

    Infeeds 

    Max. plunge infeed

    4.9 ft/min

    4.9 ft/min

    Min. plunge infeed

    0.004 in/min

    0.004 in/min

    Dimensions 

    Dimensions (W x D x H)

    10.2’ x 8.9’ x 7.6’

    10.8’ x 9.2’ x 8.9’

    Machine weight

    20,000 lb

    26,000 lb