Mounted stubble cultivator URASI

mountedwith hydraulic adjustmentwith harrow

Overview

• Precision scalper ideal for surface stubble removal and shallow, non-inverting soil preparation.
• The URASI integrates into regenerative agriculture and soil conservation workflows to rebuild organic matter and restore biodiversity in degraded soils.

Benefits

• Supports soil regeneration and fertility by increasing organic matter production.
• Improves water percolation and retention and enhances run-off water quality.
• Preserves biodiversity and strengthens ecosystem health and resilience.
• Contributes to soil carbon return to compensate agricultural CO2 emissions.
• Promotes vertical soil structure for deeper aeration, better water uptake and reduced surface waterlogging.

Availability

• Available widths: from 4.30 m to 6.00 m.

THE FRAME

• Three-point hitch compatible with clevis Nos. 3/4 and pin Nos. 3/4, anti-rotation third point designed to ISO 730 tractor hitch standard.
• Double 180×80 mm rectangular welded tube frame for stiffness and long service life.
• Four 70 mm square tine carriers in high-tensile steel for chassis strength under intensive use.
• Four integrated parking stands on the extensions (two front, two rear) for stability.
• Two cylinders front and two rear for folding extensions to distribute loads and limit chassis flexing.
• Hydraulic folding to 3.00 m in two parts with hydraulic safety features.
• Levellers behind the last row of tines with three positions to adapt to conditions.
• One pair of wheels front and two pairs rear (584×236 mm) with independent hydraulic adjustment for even wheel settings.
• Indicators and lighting included to CE standards.

FOLDING FRAME – table of recommended values
FOLDING FRAME
Width (m): | 3 | 4.30 | 5.30 | 6.00
Inter-tine spacing (mm): | 170 | 170 | 170 | 170
Number of tines: | 17 | 25 | 31 | 35
Power requirement (hp): | 120 | 150 | 160 | 180
Weight (kg) *: | 1210 | 3010 | 3230 | 3450
* Depending on equipment (value with a comb harrow on three bars)

Strong points / Performance

• Surface working depth from 3 cm; tine working depth typically 3–8 cm at ~12 km/h.
• Tine distribution over four rows and high under-chassis clearance ensure high flow rate and reduced clogging for consistent residue breakdown.
• Effective at scalping straw, eliminating volunteers and preparing false seedbeds without disturbing soil organic structure.
• Designed to support reduced use of crop protection products while preparing cover crops and green manure.

TINES

• 80 × 12 mm tines with back spring: increased resistance and limited vibration for consistent coulter working depth.
• Under-chassis clearance 650 mm to handle high residue flow without jamming.
• Tine pitch 170 mm with 250 mm coulters; 80 mm cutting area to scalp the full working width.

THE EQUIPMENTS

• Comb harrow: Ø13 mm on three bars with hydraulic adjustment; height hydraulically or mechanically adjustable and retractable.
• Hydraulic locking valves on adjustment cylinders to retain settings over time.
• Comb spacing 450 mm (for 150 mm pitch) for intensive work while retaining optimum flow rate.
• Comb pivots mounted on polyacetal rings to avoid metal-to-metal contact and reduce wear.
• Pivot-mounted harrow arms with thick, maintenance-free polyacetal rings.
• Hydraulic angle-of-attack adjustment to match residue volume.
• Adjustment synchronization via 50/50 flow divider for uniform extension settings.
• Optional seeding kit: single metering unit with ventilation and 40-output distribution head located at the center of the chassis; chain/cable tensioning on drop pipes.

OPTIONS

• Pair of lateral deflectors to reduce sideways projections from outer tines.
• Carbide coulters for intensive use in abrasive soils.

CONTROL

• Single control box required for all hydraulic adjustments (wheels and three rows of combs) for simplified operation.
• Separate hydraulic front and rear wheel adjustment to maintain consistent working depth across the full width.

Specifications

• Model name: URASI
• Available widths: 4.30–6.00 m (foldable configurations shown in table)
• Inter-tine spacing: 170 mm
• Number of tines (examples): 17 / 25 / 31 / 35
• Power requirement (examples): 120 hp, 150 hp, 160 hp, 180 hp depending on width
• Weight (examples): 1 210 kg; 3 010 kg; 3 230 kg; 3 450 kg depending on equipment
• Under-chassis clearance: 650 mm
• Tine working depth: 3–8 cm (recommended speed ~12 km/h)
• Comb harrow: Ø13 mm on 3 bars, comb spacing 450 mm
• Tines: 80 × 12 mm with back spring; coulters 250 mm; cutting area 80 mm
• Wheels: 1 pair front, 2 pairs rear Ø584×236 mm; independent hydraulic adjustment
• Frame: double 180×80 mm rectangular welded tube; hydraulic two-part folding to 3.00 m transport width