Farrat Levalators improve large, precision and long bed machinery performance by increasing alignment accuracy, rigidity and stability as the most accurate method of precision alignment.
Large machines generally need good foundations both to reinforce the machine bed and to reduce vibration by mass damping. Farrat Levalators are the vital connection between machine and foundation enabling machine and foundation to become one unit. A machine on weak supports may as well not have a foundation.
They can be fully grouted in, thus achieving a virtually built-in or encastré support which considerably increases the stiffness of the machine base and creates a complete machine foundation integration.
Farrat Levalator Range
Farrat Levalators overcome all the deficiencies of jackscrew support. Jackscrews are generally inadequate for large machine support as they are only virtually pivot supports and are therefore not stiff enough either horizontally or vertically. They distort under excessive loads thus limiting hold down bolt tension and create localised stressing in both machine bed and support plate.
Our Levalators consist of a high grade cast iron basebox machined on the inside to support the screw driven fully machined lower wedge (high grade cast iron) which in turn elevates the fully machined steel top wedge.
A fully machined spherical disc sits in a spherical recess on the top surface of the steel wedge providing a spherical seating to correct misalignment and complex angles between machine and foundation.
Auxiliary levelling screws in the basebox enable Levalators to be aligned in installations where Levalators are pre grouted prior to machine installation.
Load Capacity
| Ref | Max Ultimate Load (kN) | Max Share Machine Weight (kN) | Max Lifting Capacity (kN) | Adjustment Torque (Nm/10kN) | Height Adjustment p/full turn (mm) | Height Adjustment p/full turn (mm) | Vertical Stiffness (N/µm) |
| LA4 | 240 | 40 | 80 | 4 | 100 | 0.40 | 2,500 |
| LA8 | 400 | 80 | 160 | 7.7 | 115 | 0.25 | 6,500 |
| LA16 | 600 | 160 | 200 | 8.9 | 200 | 0.25 | 8,000 |
Dimensions
| Ref | L (mm) | L1 (mm) | L2 (mm) | B1 (mm) | B2 (mm) | B3 (mm) | W (mm) | H-mid (mm) | H-min (mm) | H-max (mm) | Adjustment (mm) |
| LA4 | 247 | 119 | 128 | 156 | 135 | 128 | 18 | 75 | 69 | 81 | ±6.0 |
| LA8 | 305 | 145 | 160 | 210 | 185 | 170 | 23 | 82 | 76 | 88 | ±6.0 |
| LA16 | 370 | 180 | 190 | 260 | 230 | 210 | 26 | 84 | 78 | 90 | ±6.0 |
To achieve the greatest support / stiffness for a machine, the WL-LE without pads is recommended.
Features & Benefits
- Precision alignment for machines
- Rigid support for maximum machine bed stiffness
- Total machine-to-foundation integration
- Low overall height to ensure a low machine centre of gravity
- Systemised and predictable precision machine installation
- Precision adjustment to obtain very fine alignment
- High bolt tensions without bed distortion
- Micro-meter type height adjustment range of 12mm
- Facility to carry out subsequent alignment readjustments
- For machines with significant changes in load distribution
- No horizontal forces applied when adjusting
- High ratio of lifting force to adjustment torque
- Developed and manufactured in the UK by Farrat
Machinery Applications
Long Bed machine tools, Roll Grinders, Lathes Plano-millers and Grinders, Machining centres, Turbomachinery, Steam Turbines, Gas Turbines, Rolling Mills and Large Process machinery.
Need help with your Application?
By their very nature, industrial machinery and equipment will generate shock and vibration which can affect the performance of the machine itself as well propagate through the ground to disturb operators, surroundings such as floors and foundations, building structures, offices and neighbouring residents and businesses etc. Working closely with a trusted global network of industrial distributors and original equipment manufacturers, we have provided solutions to all manner of industrial applications, from full automotive production lines to individual machine tools and HVAC equipment, power presses, roll grinders and printing presses. To find out which Farrat solution is most suitable to your machine, Click Here to view our Industrial Application Guides.
Alternately, our application engineers will be glad to recommend you the optimum levelling solution for your machine application. Complete the form below to submit a technical enquiry to our team.
