Forest Planting Machinery Soil Post Hole Digger Model: UO-WH-30

The UO-WH-30 is a three-point-hitch (3PT) soil post hole digger designed for tree planting and other agricultural digging tasks. It features interchangeable auger bits, adjustable digging depth (200–1000 mm), a digging diameter range of 20–100 cm (depending on auger), robust construction, compact dimensions (900 × 800 × 450 mm) and a nominal weight of about 170 kg.

The unit mounts on a standard 3-point hitch. Matched engine power depends on model/auger size: models with smaller augers (e.g., UO-WH-20/30/40) generally match tractors with 22–35 HP, while larger models (UO-WH-50/60/70/80) match 35–55 HP. Confirm your tractor's hitch category and PTO specs with the supplier before use.

It supports auger diameters from about 20 cm up to 100 cm (depending on the interchangeable bit selected). Working depth is adjustable between approximately 200 mm and 1000 mm to suit different tree sizes and planting requirements.

Yes — the digger uses exchangeable auger bits of various diameters. To change a bit, stop the tractor, disengage the PTO, secure the implement, remove the retaining pins/bolts (follow the operator manual for the correct procedure), fit the desired auger, and re-secure all fasteners before operating.

The machine performs best in loose to moderately compacted soils. Rocky ground, heavy gravel, or frozen soil can cause excessive wear, damage or reduced performance. For such conditions, pre-clearing rocks, using a specialized rock auger or selecting a more robust drilling solution is recommended.

Regularly inspect fasteners, guards and the PTO shaft. Grease bearings and pivot points before each day of use and periodically during long operations (manufacturer recommendations typically suggest greasing every 8–10 hours of use). Check gearbox oil level per the operator manual, inspect auger flights and edges for wear, and replace worn components as needed.

Always read the operator manual. Key precautions: shut off the tractor and disengage the PTO before adjustments or maintenance, keep bystanders clear, wear appropriate PPE (gloves, goggles, sturdy footwear), ensure the implement is properly mounted and fastened, and do not operate with damaged guards or components.

Mount the unit to the tractor's 3-point hitch, secure top link and lift arms with appropriate pins, connect and secure the PTO shaft with the correct safety shield in place, set the correct working angle and depth, and verify all connections are tight. Follow the product manual and your tractor's instructions for safe hitching and PTO connection.

The digger's compact dimensions are approximately 900 × 800 × 450 mm and its nominal weight is around 170 kg. Always secure the implement properly when transporting on trailers or handling with a loader.

Yes. While optimized for tree planting, it is suitable for other agricultural digging tasks such as installing posts and planting larger shrubs, provided the hole diameter and depth requirements fall within the unit's capabilities and soil conditions are appropriate.

Spare parts are typically available through the manufacturer or authorized dealers. When ordering, provide the model number (e.g., UO-WH-30) and part descriptions. Your supplier can advise on compatible augers, bearings, gears and gearbox parts.

Immediately stop the tractor and disengage the PTO. Secure the implement, inspect the auger for obstructions (roots, rocks, debris) and remove them safely. Check for damage or excessive wear before resuming. Do not try to clear the auger while it is rotating.

Warranty and service terms vary by seller and region. Check with the supplier or dealer at the time of purchase for specific warranty coverage, service plans and authorized service centers for the UO-WH-30 series.

Productivity depends on soil type, auger diameter, tractor power and operator skill. In favorable conditions (soft soil, appropriate auger) the machine can complete many holes per hour; larger diameters or difficult soils will reduce the rate. Contact your dealer for performance estimates based on local conditions.

PTO speed and exact settings are not specified in this summary. Consult the product operator manual or your dealer for recommended PTO rpm and gearbox settings for each auger size. Also verify your tractor's PTO compatibility before operation.