Rotary Harrows

Rotary Harrows for Tractors — Effective PTO-Driven Soil Cultivation

A rotary harrow (power harrow) is a PTO-driven tillage machine designed for intensive, active soil preparation. Unlike passive implements, rotating tines or blades break up clods, crumble and mix the soil to the desired depth, leaving a perfectly levelled seedbed in a single pass.

Applications

Seedbed Preparation

Rotary harrows are indispensable for spring and autumn pre-sowing work under cereals (wheat, maize, oilseed rape), vegetables and industrial crops. Simultaneously shredding crop residues, incorporating fertilisers and levelling the surface reduces field operation time and the number of tractor passes.

Clod Breaking and Field Levelling

The intensive action of rotary tines breaks up compact clods left after ploughing or rainfall. The result is an even, friable layer with a structure suitable for seed germination. Working depth adjustment (5–15 cm) allows cultivation intensity to be matched to the specific crop and current field conditions.

Rotary Harrow vs Disc Harrow — Key Differences

A disc harrow works passively — it cuts and shallowly mixes the soil but does not always adequately break up cloddy material. A rotary harrow, driven by the PTO, actively cuts and crumbles the soil regardless of its hardness and moisture. It delivers a more uniform result and performs better on heavy, clay soils and with large amounts of crop residues.

Technical Specifications

Motofarma.pl offers rotary harrows with working widths of 2.5–4.0 m and adjustable working depth of 5–15 cm, fitted with crumble rollers or packer rollers for simultaneous surface consolidation.

FAQ

What tractor power is needed for a rotary harrow?

Approximately 40–50 HP per metre of working width. A 3 m harrow requires a tractor of at least 120 HP.

Can a rotary harrow be used on stony soils?

Yes, but choose a model with tine protection (shear bolts or slip clutch) to protect the gearbox from damage.

Does a rotary harrow replace ploughing?

No — it is a secondary (pre-sowing) tillage tool. Ploughing remains necessary for deeper loosening and inversion of the soil.

Order a Rotary Harrow at Motofarma.pl

Choose proven tillage machines available from stock or to order. Call us on +48 506 971 987 for expert advice on the right width and configuration for your tractor.