Set of EcoTerra support wheels (2 pcs) for Grand Max spring harrows

Support Wheels — Stability, Efficiency, and Fuel Savings

The support wheel kit for Grand Max EcoTerra spring harrows (2 pcs) is equipped with wide, European-made support wheels, specially designed for reliable operation in field conditions.

This is a functional accessory intended to increase the precision and stability of EcoTerra and EcoTerra Striegel spring harrows manufactured by Grand Max Agro.

The kit is designed for installation on harrows with a linear spring layout and ensures uniform working depth, improved adaptation to field terrain, and maximum efficiency of mechanical weed control.

Technical Specifications of the Wheels:

• Diameter — 420 mm

• Tire size — 18×8.5

• Wheel width — 215 mm

Thanks to their increased width, the support wheels evenly distribute the load on the soil, helping to prevent compaction even when working on wet and light soils.

The wide profile ensures machine stability and high passability without compromising the agronomic properties of the soil.

Why It Is Important to Use a Harrow with Support Wheels

Installing the support wheel kit significantly improves the operational efficiency of the spring harrow:

✔ the harrow rolls over the field instead of being dragged, reducing resistance;
✔ reduces the load on the tractor’s three-point hitch;
✔ lowers traction force requirements;
✔ decreases fuel consumption;
✔ improves terrain following;
✔ prevents the implement from sinking;
✔ eliminates soil compaction;
✔ preserves the structure of the topsoil.

Thanks to the wide wheels, the harrow moves smoothly without jerks, which positively affects processing quality and structural durability.

Wide Wheels — No Soil Compaction

One of the key advantages of this kit is the increased width of 215 mm, which:

• reduces ground pressure;

• prevents rut formation;

• eliminates compaction of the root zone;

• maintains proper water and air exchange in the soil;

• improves plant development conditions.

This is especially important when growing soybeans, corn, sunflower, and cereal crops, where soil condition directly affects yield.

Harrows Where Wheel Installation Is Mandatory

✔ Mandatory Installation of Support Wheels:

For models:

• EcoTerra Striegel 3.0

• EcoTerra Striegel 6.0

• EcoTerra Striegel 9.0

Striegel harrows operate during early crop growth stages and require extremely precise depth control. Without support wheels, it is impossible to ensure:

• stable spring operation;

• gentle treatment of seedlings;

• uniform pressure on plants;

• high-quality mechanical weed control.

Therefore, for EcoTerra Striegel models, the two-wheel support kit is a mandatory configuration element.

Harrows Where Wheel Installation Is Recommended

✔ Recommended Installation:

For models:

• EcoTerra 3.0

• EcoTerra 6.0

• EcoTerra 9.0

On standard EcoTerra spring harrows, support wheels are not mandatory but strongly recommended when:

• working on large areas;

• operating on uneven fields;

• using high working speeds;

• using 500 mm springs;

• performing intensive mechanical weeding.

Under these conditions, the wheels significantly improve machine stability and economic efficiency.

Economic Benefits of Using Support Wheels

Using the kit allows you to:

✔ reduce fuel consumption;
✔ decrease tractor load;
✔ reduce spring wear;
✔ minimize frame damage;
✔ increase productivity;
✔ reduce the number of repeated passes.

As a result, the support wheel kit pays for itself quickly and increases the overall profitability of harrow operation.