Watch the Rolmako U614 sub soiler in action!

Rolmako U614 subsoiler with V-shaped frame

The V-frame subsoiler is designed for optimal soil penetration

The specialized V-shaped frame enables operation with reduced power requirements. The leading tines initiate the soil loosening process, making it easier for subsequent tines to perform their task with less power. The Rolmako U 614 subsoiler is compatible with tractors ranging from 160 to 310 HP. It comes in working widths of 3 and 4 meters, featuring 6 and 8 working elements, respectively. The maximum working depth is 45 cm, with a recommended depth approximately 10 cm below the target soil layer. The minimum power requirement per tine is 30 HP, contingent on working depth and local soil conditions. The device is available with both screw and hydraulic overload protection variants. The Rolmako U 614 subsoiler effectively breaks up deeper soil layers, prevents compaction, and promotes optimal root growth. Engineered to withstand challenging soil conditions and to leverage the capabilities of modern tractors, it features robust frame reinforcements and a solid three-point suspension tower. The V-shaped frame ensures exceptional stability and effective distribution of mechanical stress. Designed to meet user demands, the subsoiler offers adjustable tine spacing for compatibility with various agricultural tractors. In loosened soil, air and water infiltration is enhanced, and plant rooting is facilitated.

Water infiltrates soil layers with greater ease

The U 614 subsoiler is equipped with a V frame constructed from a highly durable, thick-walled profile measuring 200 mm x 100 mm with an 8 mm wall, ensuring its capability to handle all field conditions. The reliable hydraulic system from other Rolmako subsoilers has been integrated into the frame of the U 614 subsoiler with a V frame. The nitrogen pressure in the hydraulic accumulators has been adjusted to the resistance created by the Michel tines in the ground. Utilizing a subsoiler with a curved Michel tine is recommended for compact soils that require enhanced porosity while maintaining an intact surface structure. This working element improves soil circulation and oxygenation, promoting root growth and plant development. Unlike traditional cultivators with straight tines, the subsoiler with a Michel tine breaks up the soil with less resistance, preserving the ground surface. Furthermore, using a subsoiler with a curved working element can reduce water demand by approximately 10% if additional field irrigation is applied. For optimal results, employ a subsoiler with a bent Michel tine on loose soil (neither extremely dry nor wet). The soil structure created by this subsoiler reduces the need for annual subsoiling. Subsequent procedures will only be necessary when the soil becomes too compacted for sowing or water pools form due to compacted paths under tractor wheels. This device is ideal for no-plough cultivation technology.

Rolmako U614 soil loosening implement with V-frame design

Two safety systems – Rolmako U614 subsoiler

Smooth operation without the need to replace overload screws

The U 614 subsoiler is available with two types of protection: basic screw protection or hydraulic NON-STOP, redesigned for V-frame needs. Its overload protection adapts to cultivation conditions by regulating the force needed to deflect the tine upon encountering an obstacle. The subsoiler is designed for full simultaneous subduction of several tines, preventing damage from large soil obstacles. It allows the obstacle to be overcome with a gentle tine return, thus avoiding it. Machines with four or more tines feature two hydro-accumulators to protect against damage. The U 614 series subsoilers are equipped with hydraulic protection, combining the strength of solid welded structures, ease of use, and minimal maintenance, enhancing user comfort. The hydraulic accumulators absorb excessive energy on the tine, allowing the subsoiler to bypass obstacles without user intervention. Hydraulic pressure can be adjusted to field conditions. The hydraulic safety device ensures smooth operation and overload protection. The photo shows the machine with an optional beam with lighting. In the Rolmako U 614 V-frame subsoiler, working depth is set using front double support wheels adjusted with a turnbuckle, not the tractor's three-point linkage. Any type of tillage roller can be used with the U 614 subsoiler, providing better stability and cultivation effect. The tillage roller, selectable from the Rolmako offer, aids in soil compaction, maintaining working depth, breaking up clods, and evening the field surface.

The impact of subsoiling on soil structure

Machine construction

1. Rear LED lighting beam

Machines traveling on public roads must be equipped with road lighting.

2. Three-point linkage

The massive suspension system serves as a supporting element of the mulching harrow. The solid tower of the three-point suspension system makes the machine durable and resistant to loads.

3. V-frame construction

The specialized alignment of the tines on the V-frame guarantees superior penetration into the soil, regardless of its hard or compacted condition. This enhances soil flow and optimizes the tractor's power requirements.

4. Adjusting of the working depth

Four support wheels maintain the predetermined working depth, with stepless adjustment facilitated by an adjusting screw.

5. Michel's deflected tine

The bevel of the working element ensures optimal penetration angle and stability during operation.

6. PREMIUM working elements

The machine employs internationally recognized soil cultivation systems, utilizing readily available high-quality components from specialized suppliers.

7. Cemented Carbide

Sintered carbide-equipped working elements are recommended for heavy loads on large-area farms or in services cultivating non-stony soils. Carbide plates can extend the operating time of subsoiler working elements by up to seven times.

8. Screw or hydraulic tine protection

Traditional shear bolt or hydraulic with adjustable force required to deflect the tine.

9. Hydraulic accumulator

The load threshold at which the tooth deflects is contingent upon the accumulator utilized. The nitrogen within the accumulator compresses, permitting the oil in the machine system to flow into the oil tank, and subsequently releases it once the overload is alleviated.

10. Frame prepared for tillage roller mounting

To enhance the effectiveness of a working pass, the machine can be equipped with a tillage roller available from the manufacturer.

11. Solid oversized machine frame

The solid frame construction is the most critical element of the cultivation machine. The substantial amount of steel used in its construction makes these robust tools capable of utilizing the high power of modern agricultural tractors, ensuring many years of operation on the farm.

12. Quality steel

Achieving a high-quality final product necessitates the use of superior metallurgical materials; therefore, in manufacturing the agricultural machine frame, we utilize fine-grained Swedish steels S500MC and S700MC.

13. Laser processing of sheets, tubes, and profiles

The application of laser techniques in the production of agricultural machinery facilitates precise cutting in high-quality, hard sheets, where conventional chip drilling methods are challenging and costly.

14. Steel shot blasting and powder coating

Proper preparation of machine parts combined with powder coating ensures a durable and robust coating. Additional maintenance and complicated care are unnecessary.

Subsoiling is a key practice – U614 with V-frame by Rolmako

Equipment

standard

V-shaped frame built from a rectangular profile 200x100x10mm, Michel tine, screw or hydraulic overload protection, four support wheels.

Equipment

optional

Reinforced chisel – pad welding
Front reflective plates (mounted machines)
Rear LED lighting beam
Tillage rear roller

Most frequently chosen accessories

Cultivation tools

Michel's deflected tine
Hydraulic overload protection

Rolmako U614 subsoiler with Michel curved tine

Michel's deflected tine

Rolmako offers a range of subsoiling machines with various versions of working elements. MICHEL type tines equip subsoilers with the symbols U 608 (MICHEL small version), U 614, and U 619. The new series of subsoilers features optimized geometry of the working elements, enhancing soil substrate loosening without negative effects and positively impacting the soil structure. The subsoiler tine, with its curved structure, is specially designed for smooth, gradual soil penetration. Offering minimal resistance, it effectively loosens the soil, ensuring adequate access to water and air for crops. The curved tine shape allows better soil penetration and breaks deep hard coatings, improving moisture retention. The undercut soil is slightly lifted and then returned to its place, achieving better loosening compared to classic straight tines. The tine shape ensures uniform surface cutting over the entire working width. The double-sided chisel extends the working element's service life. Made of high-quality boron steel with a hardness of 50 HRC, the tines are designed for optimal soil loosening efficiency while maintaining low power requirements. The variety of combinations of Rolmako subsoilers with the MICHEL tine makes them the most comprehensive offering on the market.

Hydraulic overload protection

The U 614 subsoiler's simple and unique technical solutions ensure precise operation, user-friendly functionality, and high efficiency. In the version with hydraulic protection, each subsoiler tine is equipped with a hydraulic cylinder connected to an accumulator via cables. The accumulator maintains a specific force for the tine's release upon encountering an obstacle. When the subsoiler hits a stone, hydraulic oil flows to the accumulator, causing the cylinder to close and return to its working position after bypassing the obstacle. Hydraulic overload protection allows for adjustment of the tine's release force by simply increasing or decreasing the pressure. The large-capacity hydraulic accumulator absorbs all substantial impacts affecting the machine.

Benefits of soil aeration with a subsoiler

Advantages of subsoiling with Rolmako tillage equipment

The primary properties

The concept of the Rolmako U 614 subsoiler with a V frame
Destiny
When should a subsoiler be used?
Advantages of subsoiling
Supporting wheels
Various configurations available
Oversized agricultural structures
Steel providing an advantage

Destiny

The subsoiler is engineered to break and loosen the soil to enhance its physical and biological properties. It loosens the layer of soil not reached by plowing, allowing better percolation and aeration, which fosters plant root development. Subsoiling reduces the depth of plowing for several consecutive years, resulting in significant fuel and time savings. It also moves fertilizers to deeper soil layers. This procedure is necessitated by water stagnation in fields during spring. For effective soil crumbling, subsoiling must be done when the soil is relatively dry. Excessive soil moisture leads to smearing rather than crumbling.

Concept of the U614 subsoiler – V-frame design

The concept of the Rolmako U 614 subsoiler with a V frame

- Working elements arranged in a V configuration
- Enhanced development of vegetation in the lower soil layer
- Capability to operate under all conditions, including wet areas
- Facilitated root penetration
- Increased yields
- Superior quality of the device
- Minimal number of adjustment points
- High efficiency and quality of work
- High machine throughput
- Support wheels with adjustable working depth
- Michel-type working elements with low working resistance
- Frame secured with a shear bolt or hydraulic piston
- Universal frame expandable from 3 m to 4 m
- Expected work effect achieved at a speed of 3 - 7 km/h.

When should a subsoiler be used?

Soil undergoing continuous technological processing (ploughing, machine transport, harvesting) becomes increasingly compacted, preventing water penetration to lower layers. Excessive compaction leading to water stagnation indicates the necessity of a subsoiler to loosen deeper soil layers. Rolmako offers a comprehensive range of machines designed to address excessive water retention on the field surface efficiently. The robust and durable main frames are the hallmark of all Rolmako subsoilers. Utilizing the U 614 subsoiler enhances the soil's microclimate by retaining more moisture and improving ventilation, resulting in better crop yields. The subsoiler's operation ensures water absorption into the soil, promoting healthy and stable crop growth. Rolmako subsoilers are available in multiple varieties, featuring various tine types and overload protection, with distinct supporting frame structures.

Benefits of subsoiling with the Rolmako U614

Advantages of subsoiling:

- Increased yields
- Improved root development
- Enhanced water management through better soil permeation and greater water retention
- Mitigation of fungal disease risks
- Potential for earlier sowing
- Decreased soil pollution
- Reduced pre-winter ploughing costs by shallowing
- Positive impact on future crop cycles.

Ząb odgięty typu Michel

Rolmako proponuje całą gamę maszyn do głęboszowania w różnych wariantach elementów roboczych. W zęby typu MICHEL są wyposażone głębosze o symbolu U 608 (wersja MICHEL small), U 614 oraz U 619. Nowa seria spulchniaczy otrzymała zoptymalizowaną geometrię elementu roboczego, który wchodząc w podłoże ziemi rozluźnia ją bez negatywnych skutków, pozytywnie oddziałując na strukturę gleby. Ząb głębosza o zakrzywionej strukturze posiada specjalną konstrukcję, która pozwala na płynne, stopniowe wnikanie w strukturę ziemi. Stawiając stosunkowo niewielkie opory doskonale spulchnia glebę zapewniając odpowiedni dostęp wody oraz powietrza uprawom. Dzięki zakrzywionemu kształtowi zęba głębosz może lepiej penetrować ziemię i rozbić głęboko twardą powłokę, dzięki czemu gleba będzie lepiej trzymać wilgoć. Podcięta ziemia jest lekko unoszona w górę, następnie wraca na swoje miejsce. Gleba jest lepiej spulchniona w porównaniu z klasycznymi prostymi zębami. Kształt zęba zapewnia jednolite przecięcie jej powierzchni na całej szerokości roboczej. Dwustronne dłuto pozwala wydłużyć okres eksploatacji elementu roboczego. Zęby wykonane są z wysokogatunkowej stali borowej o współczynniku twardości 50 HRC. Jego kształt został zaprojektowany tak, aby umożliwiał jak najlepszy efekt spulchniania gleby przy jednocześnie niskim zapotrzebowaniu na moc. Różnorodność kombinacji głęboszy Rolmako z zębem Michel czyni z nich najbardziej kompletną ofertę na rynku.

Hydrauliczne zabezpieczenie przeciążeniowe

Proste i unikalne rozwiązania techniczne głębosza U 602 zapewniają precyzyjną pracę, łatwą obsługę i wysoką wydajność. W wersji z zabezpieczeniem hydraulicznym każdy ząb głębosza zaopatrzony jest w cylinder hydrauliczny. Siłowniki przewodami połączone są z akumulatorem, który odpowiada za utrzymanie określonej siły uchylenia się zęba przed przeszkodą. Kiedy głębosz natrafia na przeszkodę olej hydrauliczny przepływa do akumulatora. W ten sposób następuje zamknięcie się cylindra, który po ominięciu przeszkody wraca do pozycji roboczej. Hydrauliczne zabezpieczenie przeciążeniowe umożliwia regulację siły wyzwolenia zęba. Wystarczy zwiększyć lub zmniejszyć ciśnienie. Akumulator hydrauliczny o dużej pojemności przejmuje wszystkie duże uderzenia oddziałujące na maszynę.

Supporting wheels

The subsoiler maintains a fixed position relative to the field, and the tines from all sections cultivate the soil at a set working depth regardless of the three-point linkage or roller position settings. This is primarily due to a special support wheel system, available as standard. Additionally, the device can be equipped with an optional rear roller, ensuring more even operation by providing an additional point of support for the force.

Coupling system for tillage equipment – Rolmako subsoiler

Sprzęg do maszyny uprawowej

Głębosz wyposażony jest w sprzęg do maszyny współpracującej. Umożliwia to głęboszowanie w połączeniu z broną talerzową oraz innymi urządzeniami wyposażonymi w trzypunktowy układ zwieszenia do ciągnika. Prezentowana na zdjęciach maszyna to kombinacja głębosza z kompaktową broną talerzową o szerokości roboczej 3,0 m doposażoną w ciężki wał gumowy. Masa maszyny podłączonej na wysięgniku głębosza to 1800 kg. Za stabilność pracy oraz utrzymanie zadanej głębokości uprawy odpowiada wał brony talerzowej. Głębosz spulchnia glebę poniżej głębokości orki, talerze wykonują prace związane z obróbką pożniwną.

Built from top-grade Swedish S500MC and S700MC steel

Steel offering a competitive advantage

Increasingly larger and more powerful agricultural tractors subject the structural elements of agricultural machinery to significant stress, pushing them to their operational limits. Modern agricultural structures are expected to demonstrate high resistance to loads and an extended service life. Achieving a high-quality end product necessitates the use of superior-quality steel in production. Accordingly, we utilize high-quality Swedish fine-grained steels S500MC and S700MC, as well as carbon and boron steels for heat treatment and the wear-resistant Hardox. The use of these high-quality steel products ensures our agricultural equipment is highly durable and capable of operating at high speeds with high surface efficiency.

Our farm machinery stands out for robust weight and strength

Oversized agricultural structures

Rolmako tillage machines distinguish themselves from competitors due to their superior weight. The company's development team designs agricultural equipment to endure the most challenging working conditions. Rolmako machines efficiently cultivate land in demanding regions worldwide without requiring additional loads. The substantial amount of steel in their construction makes these tillage tools robust, enabling the utilization of high-power modern tractors and ensuring long-term farm investment.

Match your ag equipment to field needs with multiple configurations

Various configurations available

Extensive export experience has enabled us to craft an offer aligned with customer expectations. Numerous configurations and additional agricultural equipment options allow us to adapt the device to specific field conditions. Years of dedicated efforts by Rolmako employees in enhancing the company's products ensure we deliver the highest quality products to the most remote regions, where they have proven effective in diverse soil systems.