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Stabilization with lime or cement turns native soils into high-quality material right on site ("mix in place") and provides a significantly more long-lasting resistance to water, frost, contraction and expansion.
Types of Applications:
- Walkway, street and road substructures
- Development of new industrial areas, parking lots or sports fields
- Preparing and sealing landfills
Binding agents and additives can be blended using soil stabilization grinders that have their own drive system (self-propelled) or are towed by powerful tractors (attachment grinders).
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| SBF 24 L: New road construction in Brazil |
Attachement or Self-Propelled Stabilizers?
Towed attachment mixers offer a wide range of advantages:
- Significantly lower investment outlays (tractor + grinder)
- Tractor is available for other jobs
- Less fuel costs
- Avoids unwanted compaction caused by driving over the processed material
- Greater maneuverability and easier to transport
Up till now the price you had to pay for these benefits was a markedly lower standard of operation depth and mixing performance.
These new generation of Stehr attachment stabilizers marks the first time that levels of performance have been reached that once were the mainstay of only the best self-propelled grinders:
600 mm (23.6") mixing depth with a cutting width of 2.400 mm (94.5")
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Stehr Mixer vs. the Competition (Self-Driving) | |
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The Stehr Stabilizer:
- Mixes more intensively and produces much finer grinding results
- Avoids undesirable compacting caused by driving over the "softened" material
- Delivers a greater grinding depth (max. 600 mm (23.6") even in solid ground)
New Drive Concept
Power from the tractor's PTO is transferred to the rotor through bilateral power belts, instead of the usual power-draining side spur gears. These belts turn at high rpm and yet only need to shift a relatively low amount of torque. We use low-loss planet gears to ensure that the build-up of torque occurs where it's needed: at the grinder rotor.
The side power-belt drive system has a very narrow construction compared to spur gears. This is an important feature, since the lower part of this side drive's housing is pulled through the soil. The narrower the side drive, the less energy is required.
Besides, every Stehr stabilizer has a comparatively large mixing room - very important for less power requirement.
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| SBF 24: rock-crushing rotor teeth with 25 mm shaft |
Comparison between SBF 24 and two competitive models
Requirements include a rear 1000 rpm PTO and creep-speed (V min = 300 - 400 m/hr) or "vario" transmission.
Engine Output: The specifications stated here are the minimum values. We recommend 160 hp (SBF 22 L), 180 hp (SBF 24 L) and 280 hp (SBF 24) for maximum operation depth in difficult soil conditions.
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NEW! Dust free strewing and milling |
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SBF 22 L Soil Stabilization Grinder Rotor Width 2200 mm (86.6") |
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SBF 24 L Soil Stabilization Grinder Rotor Width 2400 mm (94.5") |
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SBF 24 Soil Stabilization Grinder Rotor Width 2400 mm (94.5") |
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Options: water-spreading system |
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electronical tension tester |
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