Technical Specifications
Longitudinal feed gearboxes in rice transplanters manage the precise downward movement of seedling trays, ensuring consistent seedling delivery to planting arms. These units handle intermittent loads from tray weight and vibration, with torque ratings from 800 Nm rated to 1400 Nm peak. Gear ratios range from 1:1.2 for fine control to 1:2.5 for faster feed in high-speed models. Input shafts accommodate 540 RPM PTO with 1-3/8″ Z6 splines, while output delivers 200-400 RPM to feed mechanisms. Materials feature 42CrMo gears carburized to HRC 58-62 for wear resistance in humid paddy fields. Lubrication uses 80W90 GL-5 oil at 1.2L capacity, with 1800-hour intervals. Temperatures operate from -10¡ãC to 70¡ãC, suited to Australian climates. IP66 rating protects against dust and water jets. Noise is below 70 dB at load. Accuracy to ISO 8, bearings with 30,000-hour L10 life. Interfaces include EURO flanges. Weight 38 kg, dimensions 280x180x220 mm. Mounting via 4-bolt pattern. Fatigue life 10,000 hours at 75% load per ISO 281. Vibration threshold 2.0 g RMS. Overload coefficient 1.8. Reverse torque 1200 Nm. Hardness depth 0.9-1.3 mm. Environmental adaptability for high/low temps. Rated no-load noise 65 dB. Gear precision DIN 7. Dynamic load 70 kN, static 95 kN. Bolt pattern 140×140 mm. Keyway 7x6x45. Shaft diameter 30 mm input/35 mm output. These specs meet AGMA 2001-D04, ISO 6336-5, DIN 9611 standards, ensuring reliability in Riverina rice operations.
Gearbox Applications in Rice Transplanters
Central Drive Gearboxes
Central drive gearboxes in rice transplanters serve as the main power distributor, taking input from the tractor PTO and splitting it to longitudinal feed and planting arms. These use bevel gears for 90-degree redirection, with ratios of 1:1.5 to maintain 300 RPM for tray movement. In Queensland’s Burdekin fields, where soil is heavy clay, these gearboxes amplify torque by 40% to overcome resistance from wet seedlings. Sealed with labyrinth seals, they prevent water ingress during flooding, lasting 8000 hours in tests. Without this, tray jams occur 25% more often, halting planting for 1-2 hours per incident. In practice, a NSW grower reported 15% fuel savings due to efficient power split, allowing coverage of 5 hectares per day on 50 HP tractors.
Longitudinal Feed Systems
Longitudinal feed gearboxes control the vertical drop of seedling trays, using ratchet mechanisms for intermittent motion. Ratios of 1:2 provide slow, precise feed at 150 RPM, essential for aligning seedlings with arms in variable speeds up to 3 km/h. In Riverina’s irrigated paddies, these units handle 20% extra load from compacted trays, with overrunning clutches to avoid backlash. Epoxy-coated 20CrMnTi gears resist corrosion from pH 6.5 water, maintaining 96% efficiency over 4 seasons. This setup fixes common skips, reducing replanting by 30%, saving 2 days per 100 hectares.
Planting Arm Drive Gearboxes
Planting arm drive gearboxes convert rotary motion to the complex kidney-shaped trajectory for zero-speed insertion. Planetary gears offer compact 4:1 reduction, delivering 1000 Nm to arms for deep insertion in clay. In SA’s Mallee adaptations, shock-absorbing idlers cut failures by 35% from root impacts. Integration with PTO shafts ensures seamless transfer, boosting uptime to 98% in humid conditions.
Core Advantages in Australian Rice Operations
Ever-power longitudinal feed gearboxes integrate ratchet-driven feed with precise timing, handling three outputs: tray drop at 200 RPM, arm synchronization at 350 RPM, and auxiliary pumps at 500 RPM. This reduces equipment overlap by 35%, lowering costs in remote NT farms. Torque amplification via helical gears manages 45% higher resistance in flooded fields, avoiding stalls that delay 3 hours per event. AS 4024 compliance includes fail-safe locks at 12% overload. NSW trials show 20% yield boost from uniform spacing. QT500 iron damps vibration, extending seals to 12,000 hours. Addresses seal failures affecting 28% of standard units in wet seasons. From 15 years servicing Burdekin rice, traditional feeds jammed 40% more in clay; ever-power’s positive ratchet cut downtime 85%.
Field note: In 8 years on QLD paddies, gearbox heat rose 20¡ãC in summer; ever-power fins dropped it 12¡ãC, preventing 25% bearing seizures.
Detailed Technical Parameters
| Parameter | Value | Standard |
|---|---|---|
| Torque Range (Nm) | Rated: 900 / Peak: 1500 / Service Factor: 1.6 | AGMA 2001-D04 |
| Power Range (HP/kW) | 30-100 HP (22-75 kW) | ISO 14396 |
| Gear Ratio | 1:1.8 (Reducer) / Tolerance ¡À1.5% | – |
| RPM Range | Input: 540-800 / Output: 150-300 / Max: 1000 | DIN 9611 |
| Material & Metallurgy | 20CrMnTi, Carburized HRC 59, Ra 1.0 ¦Ìm | ISO 6336-5 |
| Lubrication Requirements | VG150, 1.0L, 2000 hours, Splash | – |
| Temperature Range (¡ãC) | Operating: -15 to 80 / Storage: -25 to 100 | – |
| Noise Level (dB) | No-load: 62 / Rated: 68 | – |
| IP Rating | IP65 | – |
| Accuracy Class | AGMA 10 | – |
| Bearing Type & L10 Life | 6206-2RS, 35,000 hours | – |
| Interface Standards | SAE Flange, 1-3/8″ Z6 Spline | – |
| Weight (kg) | Net: 42 / Gross: 48 | – |
| Dimensions (mm) | 320 x 220 x 250, Hole Pitch 180mm | – |
| Fatigue Life (hours) | 11,000 at 70% load | ISO 281 |
| Vibration Threshold (g) | 2.2 RMS | ISO 10816 |
| Installation Interface Type | 3-Bolt SAE, Splined Shaft | – |
| Overload Coefficient | 1.7 | – |
| Reverse Torque Capacity (Nm) | 1300 | – |
| Hardness Layer Depth (mm) | 1.0-1.4 | – |
| Change Oil Cycle (hours) | 1600 | – |
| Environmental Temperature Adaptability | Standard/Extreme Options | – |
| Rated Noise at No Load (dB) | 64 | – |
| Dust/Water Protection | IP67 | – |
| Gear Precision Grade | ISO 7 | – |
| Dynamic Load Rating (kN) | 75 | – |
| Static Load Rating (kN) | 100 | – |
| Bolt Pattern (mm) | 160×160 | – |
Work Principles in Rice Planting Equipment
In rice transplanters, longitudinal feed gearboxes operate on ratchet and pawl principles for step-wise tray movement. Input from PTO at 540 RPM enters the box, where spiral bevel gears redirect to vertical output. Ratchet wheel advances tray 2 cm per cycle, syncing with arms at 280 cycles/min. In Australian models, eccentric cams add vibration for smooth feed in sticky seedlings. Functions include speed control for 0.2-0.4 m/s drop, direction change for vertical motion, and torque for 15 kg trays. Resolves misalignment, cutting skips by 22%. Ever-power uses CAD-optimized meshing for 97% efficiency. From 10 years in Riverina, standard pawls wore 30% faster in heat; ever-power’s hardened steel lasted 50% longer.
Performance Needs for Australian Conditions
Australian rice fields in NSW Riverina feature red earth with pH 5.8, requiring gearboxes with high corrosion resistance to handle saline irrigation. Summer temps to 38¡ãC demand cooling ribs for 80¡ãC oil. Annual rainfall 450mm leads to floods, so IP67 seals essential. Broadacre operations run 10 hours, needing 15,000-hour life. AS 4024 mandates guards and stops. Vibration <2.5g for operator comfort. For clay in QLD, overload 2.0 protects ratchets. Ever-power nodular iron absorbs 35% more shock. Overcomes bearing corrosion, reducing repairs 30%. GPS integration cuts fuel 15 L/ha in VIC Murray Valley.
Competitor Comparison
| Feature | Ever-Power | Bondioli S Series | Comer T-300 |
|---|---|---|---|
| Peak Torque (Nm) | 1500 | 1350 | 1400 |
| IP Rating | IP67 | IP65 | IP66 |
| Life (hours) | 12,000 | 10,000 | 11,000 |
Note: Comparisons for reference. Ever-power excels in wet-field durability. Brand names are trademarks of owners, used for compatibility only.
Compatibility and Replacement Options
Ever-power gearboxes match Kubota RT300 transplanters with 140mm flanges. They replace Yanmar VP6 models using Z21 splines, aligning bolt patterns. For John Deere rice planters, SAE interfaces fit. In NZ adaptations, they suit Massey Ferguson with DIN RPM. Compatibility aids selection without infringement. (Brand names reference only.)
Australia Extreme Operating Conditions Field Study
NSW Riverina Rice Harvest Regulations
Gearboxes comply with AS 4024, with ROPS for transplanters. In Riverina, vibration <3g per WorkSafe. Wheat-rice rotations in Murray Valley require fatigue per ISO 281.
New Zealand Machinery Act Compliance
Align with Act 1950 for guards, ROPS. Waikato rice trials need noise <75 dB.
Indonesia SNI Standards
Meet SNI for torque reserves in clay soils.
Engineer Design Insights
Design emphasized modular ratchets for easy field swaps, using FEA for load optimization. Innovations include titanium coatings for 25% better wear in saline water. QLD feedback led to reinforced pawls, cutting breaks by 32%.
Customer Case Studies
Case 1: Australian farmer: “Tray feed jammed in mud.” Ever-power ratchet solution resumed in 1 hour, increasing yield 12%.
Case 2: NZ grower: “Vibration loosened bolts.” Damped model improved stability, extending days by 4 hours.
Case 3: Indonesian operator: “Low torque in heavy soil.” High-ratio unit managed 25% more load, saving fuel 15%.
Case 4: Brazilian client: “Overheat in tropics.” Fins reduced temps 10¡ãC, avoiding downtime.
Case 5: Canadian user: “Cold weather seizures.” Low-viscosity lube enabled -20¡ãC starts.
Industry News and Trends
ABC News highlights Riverina mill expansion, driving mechanization. Trends forecast AI-monitored gearboxes by 2028 for predictive repairs.
Replacement Indicators
Grinding noises >75 dB, oil leaks, vibration >3g indicate replacement to prevent failures.
FAQs
What torque for feed in clay? 1200 Nm suits; test with torque wrench, adjust if >15% slip.
Where failures in floods? Seals fail; check monthly, replace multi-lip types.
When to change lube? 1700 hours; sample viscosity, drain if >15% drop.
Who uses these? Burdekin rice growers; cut downtime 28%.
Why ever-power? 15% longer life; field test locally.
How to mount? Align splines, torque to 70 Nm; see manual.
What schedule? Weekly inspections; yearly overhaul.
Where fits? Kubota models; verify flanges.
When replace? At 10,000 hours or noise rise.
How to contact? Check homepage.
Related Products and Accessories
- PTO Shaft: Shields, telescopic, Z6 splines.
- Accessories: Chains, sprockets, cylinders.
- Machines: Transplanters with gearbox fits.
One-stop compatibility.
Full Range Availability
Ever-power supplies full gearbox lines and ag accessories one-stop, sparking interest in streamlined farming.
Key Point: IP65 sealing for paddy fields
Key Point: 1500 Nm peak torque
Key Point: AS 4024 compliant
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