Farrat Jackmounts and Captive Jackmounts offer a simple secure and economical means of supporting and installing machinery suited to jackscrew support.
Manufactured in the UK by Farrat, our Jackmounts and Captive Jackmounts have been used for decades in thousands of applications around the world. Jackmounts should not be used under machines with strong vertical or horizontal shock forces (consider Isomounts, Wedgemounts or Isolated Foundations instead).
Farrat Jackmount and Captive Jackmount Range
Farrat Jackmounts
Available in three options:
- Freestanding (F)
- Freestanding + Screw Assembly
- Bolt-On with Screw Assembly
(A variety of baseplate shapes, sizes, colours and optional AV Pads upon request).
AV Pad Grades
| Mounting | Application | AV Pad Grade | AV Pad Material | AV Pad Thickness |
| Soft | Vibration sensitive equipment, i.e. Measuring, Testing, Optical & Laboratory equipment | -50 | NBR50-10P2 | 10 |
| Elastic | Active shock & vibration, i.e. Injection Moulding and Packaging machines | -70 | NBR70-10P2 | 10 |
| Very Stiff | Very stiff with damping, i.e. Lathes, Grinders and Transfer machines | -90 | SG10-P2 | 10 |
Load Capacities & Dimensions
| Part ref | Max Load for Av Pads (Kg) -50 | Max Load for Av Pads (Kg) -70 | Max Load for Av Pads (Kg) -90 | Base D (mm) | Base H (mm) | Base material | Variant | Cone Diameter (c) | Screw Sizes |
| 060* | 150 | 300 | 500 | 70 | 25 | Cast Iron 250 | FS(+SA),BO(+SA) | 20 | M10 M12 M16 |
| 080* | 250 | 500 | 1,000 | 90 | 25 | Cast Iron 250 | FS(+SA),BO(+SA) | 22 | M10 M12 M16 M20 |
| 100* | 400 | 800 | 1,400 | 110 | 25 | Cast Iron 250 | FS(+SA),BO(+SA) | 26 | M12 M16 M20 M24 |
| 120* | 550 | 1,100 | 2,000 | 130 | 27 | Cast Iron 250 | FS(+SA),BO(+SA) | 26 | M12 M16 M20 M24 |
| 130* | 650 | 1,300 | 2,400 | 140 | 27 | Cast Iron 250 | FS(+SA),BO(+SA) | 28 | M12 M16 M20 M24 |
| 170* | 1,100 | 2,200 | 4,000 | 180 | 27 | Cast Iron 250 | FS(+SA),BO(+SA) | 32 | M16 M20 M24 |
| 200* | 1,600 | 3,200 | 5,600 | 210 | 35 | SG500 | FS(+SA),BO(+SA) | 40 | M16 M20 M24 |
Farrat Captive Jackmounts
Farrat Captive Jackmounts with an integrated tilting screw. Integrated pendulum screw with up to 5º tilt in all directions.
Available as Zinc plated or Stainless Steel.
AV Pad Grades
| Mounting | Application | AV Pad Grade | AV Pad Material | AV Pad Thickness |
| Soft | Vibration sensitive equipment, i.e. Measuring, Testing, Optical & Laboratory equipment | -50 | NBR50-10P2 | 10 |
| Elastic | Active shock & vibration, i.e. Injection Moulding and Packaging machines | -70 | NBR70-10P2 | 10 |
| Very Stiff | Very stiff with damping, i.e. Lathes, Grinders and Transfer machines | -90 | SG10-P2 | 10 |
Load Capacities & Dimensions
| Part ref | Max Load for Av Pads (Kg) -50 | Max Load for Av Pads (Kg) -70 | Max Load for Av Pads (Kg) -90 | Base D (mm) | Base H1 (mm) | Base material | Tilt in all directions |
| 060* | 150 | 300 | 400 | 70 | 25 | Cast Iron 250 | 5º |
| 080* | 250 | 500 | 800 | 90 | 25 | Cast Iron 250 | 5º |
| 100* | 400 | 800 | 1,200 | 110 | 25 | Cast Iron 250 | 5º |
| 120* | 550 | 1,100 | 1,700 | 130 | 27 | Cast Iron 250 | 5º |
| 130* | 650 | 1,300 | 2,000 | 140 | 27 | Cast Iron 250 | 5º |
| 170* | 1,100 | 2,200 | 3,4000 | 180 | 27 | Cast Iron 250 | 5º |
| JMSP | -50 | -70 | -80 | D | H1 | - | - |
| 60* | 150 | 300 | 400 | 60 | 25 | Stainless Steel 304 | 5º |
| 80* | 250 | 500 | 800 | 80 | 25 | Stainless Steel 304 | 5º |
Pendulum Screw Dimensions
PSP = Bright zinc plated mild steel pendulum screws (with 2x Hex nuts & 2x Washers)
PSS = Stainless steel 304 pendulum screws (with 2x hex Nuts & 2x Washers)
| Screw Type | Size & Pitch | Spanner (A/F) | H2 (mm) | H3 Length (mm) | H3 Length (mm) | H3 Length (mm) |
| PSP or PSS | M10x1.5 | 17 | 21 | 94 | - | - |
| PSP or PSS | M12x1.75 | 19 | 23 | 90 | 140 | - |
| PSP or PSS | M16x2.0 | 24 | 25 | 90 | 140 | - |
| PSP or PSS | M20x2.5 | 30 | 32 | 90 | 140 | - |
| PSP or PSS | M24x3.0 | 19 | 23 | - | 150 | 200 |
Farrat Jackmount Accessories Range
Farrat Bolt-On Screw Assemblies
Screw Assemblies are offered as an option for the Bolt-On Jackmount.
Material: Zinc plated mild steel.
Alternative screw lengths available on request.
Screw Assemblies (SA)
| Size & Pitch | S (mm) | H (mm) | D (mm) | T (mm) | L: Avaliable (mm) |
| SA M10x1.5 | 8 | 10 | 30 | 5 | 80 |
| SA M12x1.75 | 8 | 10 | 30 | 5 | 100 |
| SA M16x2.0 | 11 | 10 | 40 | 6 | 150 |
| SA M20x2.5 | 13 | 10 | 40 | 6 | 180 |
| SA M24x3.0 | 18 | 10 | 50 | 8 | 180 |
Features & Benefits
- Enables excellent, stable seating on uneven floors
- High vibration damping to improve machine performance, reduce
- machine wear and lower noise levels
- Reduce shock transmission to and from the machine
- Captive Jackmounts have a high friction grip so machines don’t move
- Factory layout flexibility (no bolting down or grouting)
Machine Applications
General machine tools, Scanning and X-ray machines, Conveyors, Lathes, Food, Drink and Pharmaceutical equipment, Transfer machines and Grinding machines.
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.
