Common types of medium-sized disc harrows
| Type | Core Structure & Features | Advantages | Disadvantages | Ideal Application Scenarios |
|---|---|---|---|---|
| Three-Point Suspension Type (Most Common) | Attaches to the tractor's three-point hitch (Category Ⅱ, standard for 35–75 HP tractors); integral with the tractor during operation. |
- Compact design, small turning radius (suitable for narrow fields). - Quick attachment/detachment; easy to adjust tillage depth/angle via tractor hydraulics. - Low transportation height (no additional folding needed). |
- Limited working width (max ~2.5m for medium-sized models; wider widths increase tractor load).
- Less stable on rough terrain compared to semi-suspended types. |
Small-to-medium farms (5–30 hectares); fragmented fields; multi-scene operations (pre-sowing, post-plowing). |
| Semi-Suspended Type | Combined with a traction frame and partial suspension; front end connects to the tractor's hitch, rear end supported by wheels. |
- Larger working width (3.0–5.0m for medium-sized); higher operational efficiency. - Stable on uneven ground (rear wheels absorb shocks); reduces tractor frame stress. - Hydraulic folding for easy transportation (narrower width on roads). |
- Higher purchase cost than suspension types.
- Bulkier design; less flexible in small fields. |
Medium-to-large farms (30–50 hectares); large contiguous fields; high-efficiency soil preparation. |
| Pull-Type (Trailed Type) | Fully supported by its own wheels; connected to the tractor via a drawbar (no suspension integration). |
- Extremely wide working width (4.0–6.0m); suitable for large-scale operations. - Minimal impact on tractor performance (load borne by the harrow' s own wheels). |
- Poor maneuverability (large turning radius); not suitable for small/fragmented fields.
- Requires additional storage space (bulky when not in use). |
Large commercial farms (≥50 hectares); flat, contiguous land; single-purpose heavy-duty tillage (e.g., deep stubble incorporation). |
Power matching: The tractor power should be ≥ the lower limit of the recommended matching power for the disc harrow (such as 55-60HP for 1BJX-2.2 and at least 55HP for the tractor power, with a 10% margin to prevent overload);
Suspension capacity: The "lifting weight" of the three-point suspension of the tractor should be ≥ the self weight of the disc rake (such as the self weight of 520kg for 1BJX-2.4, and the lifting weight of the tractor should be ≥ 600kg to avoid lifting difficulties).
The thickness of the harrow blade of medium-sized disc harrows is usually about 4mm. You can choose thicker 6mm blades if conditions permit, as they have a longer service life. For bearings, sealed and maintenance-free radial thrust ball bearings are preferred.
The 1BJX - 5 model is equipped with 6 times the filter sealing ring, which can effectively reduce bearing wear.
Rationality of frame and auxiliary structures: The frame should be sturdy to withstand the impact during operation. It is better to have mud scraping devices and combing spring teeth.
In addition, hydraulic adjustment devices can simplify the operation of adjusting the deflection angle and folding during transportation.
| Farm Scale | Soil Type | Core Operation | Recommended Type Combination |
|---|---|---|---|
| Small (<10ha) | Loam/sandy loam | Pre-sowing leveling | Three-point suspension + double-row staggered + smooth disc + manual adjustment. |
| Medium (10–30ha) | Loam/clay loam | Multi-purpose (plow + stubble + sowing) | Three-point suspension/hydraulic adjustment + double-row staggered + mixed discs (notched + smooth). |
| Large (≥30ha) | Clay/heavy soil | High-efficiency tillage | Semi-suspended/hydraulic adjustment + cross-row staggered + notched/concave discs. |
| Niche Needs | Orchards/stony fields | Inter-row tillage/residue incorporation | Orchard-specific narrow model / stone-resistant model + notched discs. |
Common type for general-purpose use is the three-point suspension, double-row staggered, smooth-disc harrow with manual/hydraulic adjustment (e.g., 1BJX series).
For specialized needs, prioritize modifications like notched discs (residue), narrow width (orchards), or hydraulic adjustment (large-scale operations) to match your farm's unique conditions.
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| Model | Medium-sized Disc Harrow 1BJX-1.5 | Medium-sized Disc Harrow 1BJX-1.7 | Medium-sized Disc Harrow 1BJX-2.0 | Medium-sized Disc Harrow 1BJX-2.2 | Medium-sized Disc Harrow 1BJX-2.4 | Medium-sized Disc Harrow 1BJX-2.5 |
|---|---|---|---|---|---|---|
| Working Width (mm) | 1400 | 1600 | 1800 | 2000 | 2300 | 2500 |
| Working Depth (mm) | 140 | |||||
| Disc Dia (mm) | 560 | |||||
| Disc Qty | 14 | 16 | 18 | 20 | 22 | 24 |
| Weight (kg) | 340 | 400 | 434 | 470 | 590 | 730 |
| Tractor Power (hp) | 30 | 45 | 50 | 55-60 | 65 | 80 |
| Linkage | CATⅡ 3-point Mounted | |||||
