Farrat Isoblocs have been developed specifically for, although their use is not limited too, power presses to provide effective vertical and horizontal shock absorption, vibration isolation and damping as well as easy and precise levelling on a much larger scale than Isomounts.
Isobloc
Farrat Isoblocs are the ideal choice for shock and vibration mitigation with high loads.
Our Isoblocs provide a simple, economical and flexible solution to factory or plant room layout planning, enabling easy installation and movement of machines without the need for bolting down or grouting.
Isoblocs are manufactured from the highest quality powder coated steel and Farrat NBR isolation materials. The design has been continuously improved to ensure long term durability against mechanical degradation and chemical corrosion. This is proven with hundreds of worldwide industrial applications.
Farrat Isoblocs
Farrat Isoblocs are manufactured from the highest quality powder coated steel and Farrat NBR isolation materials.
The design has been continuously improved to ensure long term durability against mechanical degradation and chemical corrosion. This is proven with hundreds of worldwide industrial applications.
Load range from 7,500kg up to 50,000kg per mount.

Isobloc Size Range
Isobloc(ISO) | ISB Variants | Units | ISB 10 | ISB 25 | ISB 50 | |
---|---|---|---|---|---|---|
Max Load/Mount | -70 | kg | 7,500 | 18,000 | 36,000 | |
Max Load/Mount | -80 | kg | 10,000 | 25,000 | 50,000 | |
Cover | Length | Lc | mm | 285 | 434 | 675 |
Cover | Width | Bc | mm | 234 | 334 | 475 |
Rubber Base | Length | Lr | mm | 250 | 400 | 600 |
Rubber Base | Width | Bc | mm | 200 | 300 | 400 |
Overall Mount Height (unloaded) Max | Min | Hmin | mm | 87 | 87 | 150 |
Overall Mount Height (unloaded) | Hmax | mm | 109 | 109 | 180 | |
Height Adjustment | mm | 22 | 22 | 30 |
Isobloc (ISO) | ISB Variants | Units | ISB 10 | ISB 25 | ISB 50 |
---|---|---|---|---|---|
Vertical | -70 Ksv | kN/mm | 6.25 | 15 | 29 |
Horizontal | -70 Ksv | kN/mm | 2.3 | 5.5 | 10 |
Vertical | -80 Ksv | kN/mm | 9 | 22 | 42 |
Horizontal | -80 Ksv | kN/mm | 3.3 | 8 | 14 |
Damping Factor | - C/cc | - | 0.09 | 0.09 | 0.09 |
Ratio Dynamic to Static Modulus | - | - | 2.4 | 2.4 | 2.4 |
Zinc Plated Steel Grade 8.8 with 1 Nut & 1 Washer - Dimensions in mm | |||||||
For ISB variant | 10 | 10 | 10,25 | 25,50 | 25,50 | 50 | |
Threads | SH | M24 x 1.5 | M30 x 1.5 | M36 x 1.5 | M42 x 1.5 | M48 x 2.0 | M56 x 2.0 |
AF | mm | 17 | 24 | 27 | 32 | 36 | 41 |
Length - Lo* (to be specified) | mm | 170 | 170 | 220 | 220 | 220 | 220 |
Lengths - L1 | mm | 160 | 160 | 200 | 200 | 200 | 260 |
Features & Benefits
- Load capacity up to 50 tonnes
- Precision fine screw thread height adjustment
- Excellent, proven, vertical and horizontal shock and vibration isolation
performance - Machine installation without bolting down or grouting
Farrat Isobloc Selection
Select Mounts so that the below equation result is within the maximum load mount given in the table above. If the machine is made up of sections, calculate load per mount for each section:
Machine + Tooling + Workpiece Weight (Kg) / Number of Mounts
Order example (mount + screw assembly): ISB10-70 + SH30x1.5×170
Contact us
Please select the best route to suit your requirements. Whether you require technical help or you’d like to make a general enquiry. The team are here and always ready to support you.
UK & International Enquiries
Farrat Isolevel Ltd, Balmoral Road, Altrincham, Greater Manchester, WA15 8HJ, United Kingdom.
Telephone: +44 161 924 1600
Email: [email protected]
Monday – Thursday: 08:30 to 17:00
Friday: 08:30 to 16:00