Designed to disrupt the plow sole and enhance soil structure

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.



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

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. Frame construction available in two variants

The frame is consistently prepared for expansion with tillage rollers; the version with a coupler differs in construction.

4. Subsoiler tine

The standard 100 mm chisel tine can be replaced with a newer model featuring a 300 mm wide chisel tine.

5. Drainage balls

The subsoiler is ready for the installation of drainage balls.

6. Screw or hydraulic tine protection

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

7. 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.

8. Tillage roller

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

9. Working depth adjustment

Step adjustment allows the subsoiler to sustain a consistent working depth.

10. 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.

11. 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.

12. 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.

13. 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.







Equipment
standard
  • 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.
Equipment
optional
  • 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
Tillage rollers
optional
  • 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