The U 602 subsoilers offered by Rolmako are available with two, three, four, five, or seven tines. The working elements feature a 30 mm thick plough beam with a welded hardened rod of 30 mm diameter, protecting against excessive wear, and a wear-resistant HARDOX chisel. This design ensures easy tine insertion into the ground and extended service life. The subsoiler's working element is compatible with drainage ball retrofitting. Standard tines are secured with a bolt that breaks upon encountering obstacles hidden in the soil. A non-stop version with hydraulic overload protection is also available, where an actuator coupled with a hydraulic-gas accumulator serves as the safety device. The force changes according to the system pressure, causing the working element to rise. The entire assembly is mounted on a frame equipped with a three-point suspension system. At the customer's request, the manufacturer can install a tubular, toothed packer, or twin disc roller.
Designed to disrupt the plow sole and enhance soil structure
Economical cultivation to save time and money
The Rolmako U 602 subsoiler divides soil into deeper layers, prevents compaction, and positively affects root management. Designed to meet the demands of hard soil and modern tractor capabilities, Rolmako subsoilers feature numerous frame reinforcements and a robust three-point suspension tower, ensuring durability and load resistance. The subsoiler can be equipped with a coupling for attaching another device, suitable for tractors with a large lifting capacity on the rear linkage. This combination allows for two operations in a single pass, optimizing cultivation and achieving superior results. One available option, the Twin Disc roller, enhances soil quality and maintains the set working depth. In already loosened soil, access to air and water is improved, facilitating plant root development.
Smooth operation with non-stop hydraulic protection
Overload protection for the subsoiler enables adjustment to cultivation conditions by regulating the force required to deflect the tine when encountering an obstacle. The subsoiler is designed to facilitate the simultaneous lifting of several tines, preventing damage from large stones in the soil. It allows for smooth tine return, resulting in obstacle avoidance. Machines with four or more tines are equipped with two hydro-accumulators to protect the subsoiler from damage. In the U 602 model, a 300 mm wide cutting chisel can be ordered in addition to the standard 100 mm wide chisel. High-quality components and continuous hydraulic protection enable the subsoiler to be operated without wasting time replacing safety bolts. Subsoilers equipped with a coupler for accompanying machine can be combined with various machines and rollers.
Machine construction
1. Rear LED lighting beam
2. Three-point linkage
3. Frame construction available in two variants
4. Subsoiler tine
5. Drainage balls
6. Screw or hydraulic tine protection
7. Hydraulic accumulator
8. Tillage roller
9. Working depth adjustment
10. Solid oversized machine frame
11. Quality steel
12. Laser processing of sheets, tubes, and profiles
13. Steel shot blasting and powder coating
- The frame consists of a square profile frame 140x140x10 mm, plough beam with a thickness of 30mm with a welded hardened roll of 30mm diameter and hardwearing chisel 100 mm HARDOX, tines are protected against excessive overload with a shearing bolt or equipped with a hydraulic Non-Stop protection.
- Twin Disc Roller 3,0 m with tractor three-point linkage
- Straight tine with a 300 mm chisel
- Supporting wheels
- Drainage balls
- Front reflective plates
- Rear LED lighting beam
- Maintenance-free roller bearing unit
- Pipe roller Ø500 mm
- Packer cogged roller Ø 460 mm
- Twin Disc Roller Ø470 mm
- String roller with flat bars Ø 460 mm
- String roller with cogged bars Ø 460 mm
- Tubular-ring roller Ø 450 mm
- Crosskill roller Ø 400/500 mm
- Ring roller Ø 500/600 mm
- Spring roller Ø 470/550 mm
- Rubber roller Ø 500 mm
- Roller of steel rings 48-52HRC Ø 600 mm
- T-ring roller Ø 500/600 mm
- U-ring roller Ø 540 mm
- Prismatic roller ORION Ø 500 mm
- Tandem spiky roller
Most frequently chosen accessories
Cultivation tools
Subsoiler tine
The standard tine with a 100 mm chisel can be replaced with a newer model with a width of 300 mm. The beam is equipped with two replaceable covers, and the entire assembly is made of hardened boron steel. The chisel, together with the side undercutters, constitutes one working element. The beam includes holders for the installation of drainage balls. The tine's attack angle allows for smooth and trouble-free entry into the ground. Hardened sleeves in the tine holders and beams prevent the holes from breaking. The working element is secured against overload with an M20 screw. In the version with hydraulic protection, a gas accumulator ensures smooth operation. The symmetrically arranged tines of the U 602 subsoiler, unlike V-shaped machines, allow for better loosening of the soil due to the positioning of the working elements on one beam. The soil is moved simultaneously over the entire width of the crop. The top layer of soil is not mixed, and plant residues remain on the surface, as before the subsoiler passed. This protects the cultivation surface against erosion and adverse weather conditions.
Hydraulic protection
The U 602 subsoiler's simple and unique technical solutions ensure precise operation, ease of use, and high efficiency. In the hydraulic protection version, each subsoiler tine is equipped with a hydraulic cylinder. The actuators are connected by cables to an accumulator, which maintains a specific force for the tine's release upon encountering an obstacle. When encountering an obstacle, hydraulic oil flows to the accumulator, causing the cylinder to close and return to the working position after bypassing the obstacle. Hydraulic overload protection allows for adjustment of the tine's release force by increasing or decreasing the pressure. The large-capacity hydraulic accumulator absorbs all significant impacts on the machine.
Twin Disc Roller Ø470 mm
Optionally, the machine can be equipped with a rear roller, allowing depth control of cultivation work. Besides traditional rollers like pipe or Packer, an aggressive roller with two rows of 470 mm wavy discs is also available. These discs cut crop residues, crush clods, cover stubble with soil, and level the field surface after subsoiling. The cutting disc section conditions the soil and increases work efficiency.
The primary properties
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.
The concept of the Rolmako U 602 subsoiler
- Working elements positioned on one beam
- Improved vegetation development in the lower soil layer
- Capability to operate in all conditions, including wet areas
- Facilitated root penetration
- Enhanced yields
- Superior device quality
- Minimal adjustment points
- High work efficiency and quality
- High machine throughput
- Two versions of working elements
- Frame secured with a shear bolt or hydraulic piston
- Optional coupling for accompanying machine
- Preparation for drainage balls
- Various types of finishing rollers
- Optimal work performance at speeds 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.
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
Subsoiler tine
The standard tine with a 100 mm chisel can be replaced with a newer model with a width of 300 mm. The beam is equipped with two replaceable covers, and the entire assembly is made of hardened boron steel. The chisel, together with the side undercutters, constitutes one working element. The beam includes holders for the installation of drainage balls. The tine's attack angle allows for smooth and trouble-free entry into the ground. Hardened sleeves in the tine holders and beams prevent the holes from breaking. The working element is secured against overload with an M20 screw. In the version with hydraulic protection, a gas accumulator ensures smooth operation. The symmetrically arranged tines of the U 602 subsoiler, unlike V-shaped machines, allow for better loosening of the soil due to the positioning of the working elements on one beam. The soil is moved simultaneously over the entire width of the crop. The top layer of soil is not mixed, and plant residues remain on the surface, as before the subsoiler passed. This protects the cultivation surface against erosion and adverse weather conditions.
Hydraulic overload protection
The U 602 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.
Twin Disc double disc roller
Optionally, the machine can be equipped with a rear roller, enabling control over cultivation depth. Traditional rollers, such as Pipe or Packer, are available as well as an aggressive roller with two rows of 470 mm wavy discs. These discs cut crop residues, crush clods, cover stubble material with soil, and level the field surface post-subsoiling. This section enhances soil condition and improves the efficiency of the subsoiler's performance.
Coupler for accompanying machine
The subsoiler features a coupling for integration with the cooperating machine. This configuration allows for subsoiling in conjunction with a disc harrow and other devices outfitted with a three-point tractor hitch. The machine depicted in the photos combines a subsoiler with a compact disc harrow, offering a working width of 3.0 meters and equipped with a heavy rubber roller. The combined machine weight is 1800 kg. The disc harrow roller ensures operational stability and maintains the predetermined depth of cultivation. The subsoiler loosens the soil beneath the plowing depth, while the discs handle post-harvest processing.
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.
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.
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.