4U-120D Potato harvester

Advanced Technical Features 

I. High-Frequency Vibrating Digging System

Unlike traditional fixed shovels that increase tractor drag, the 4U-120D features a vibrating flat shovel.

• Advantage: The vibration breaks up the soil crust before the tubers reach the conveyor, reducing the "soil load" and allowing the tractor to operate at a higher gear, saving up to 15% in fuel costs.

II. Multi-Stage Cleaning & Sorting Chain

The conveyor system uses a reinforced grid-sieve design made from high-tensile carbon steel.

• Function: As the potatoes travel up the $2550 \text{ mm}$ frame, the sieve filters out clods, stones, and haulm (vines).

• Crop Protection: The bars of the sieve are often coated or spaced precisely to ensure that even thin-skinned "new potatoes" are not bruised or peeled during the transition.

III. Precision Depth Management

Equipped with independent depth-limiting wheels, the operator can maintain a consistent digging depth even on uneven terrain.

• Benefit: This prevents the shovel from going too deep (which wastes energy) or too shallow (which cuts the potatoes).

IV. Universal Power Compatibility

Designed with a standard 6-tooth or 8-tooth PTO spline and a Category II three-point hitch. It is compatible with a wide range of tractor brands, including John Deere, Massey Ferguson, Kubota, and local tractor models in regions like Bulgaria, Russia, and the Middle East.

Application Scenarios

The 4U-120D is not just a potato harvester; it is a multi-crop recovery machine:

• Potatoes: Ideal for both starch potatoes and table potatoes.

• Garlic & Onions: The flat shovel design is perfect for lifting bulbs without damaging the roots.

• Sweet Potatoes & Cassava: Handles larger tubers with ease due to the wide $1200 \text{ mm}$ throat.

• Medicinal Herbs: Suitable for harvesting root-based traditional medicines (e.g., Ginseng or Licorice) in sandy soils.

 Maintenance & Durability

To ensure long-term ROI for our clients, the 4U-120D includes:

• Self-Lubricating Bearings: Reduced maintenance intervals for the main drive shaft.

• Replaceable Shovel Tips: The digging shovel is modular; when it wears down after hundreds of acres, you only replace the tips, not the entire assembly.

• Anti-Corrosion Treatment: All steel components undergo a multi-stage painting process (Primer + Topcoat) to prevent rust in damp soil conditions.

Buying Guide: Shipping & Logistics

• Packaging: Compact knockdown (CKD) or semi-knockdown (SKD) packaging available to maximize container space.

• Container Loading: Approximately 8-12 units can fit into a 40ft HQ container, significantly lowering the per-unit sea freight for distributors.

• Lead Time: Standard production cycle is 15-20 days; we support custom OEM branding for large orders.