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Rotary Tiller Gearbox TLZ292A | 540 RPM Tractor PTO Drive Unit
Heavy-Duty Agricultural Transmission • 47.8 kW Capacity • 1525 Nm Output
The Core of Mechanical Tillage
In high-intensity agricultural environments, the Rotary Tiller Gearbox serves as the critical mechanical bridge between a tractor’s power plant and the soil-engaging implements. Specifically, the TLZ292A functions as the primary central tiller transmission box. Its fundamental engineering role is to take the high-velocity, longitudinal rotational energy from the tractor’s Power Take-Off (PTO) shaft and execute a precise 90-degree directional shift, simultaneously reducing the RPM to multiply the torque output.
Unlike generic consumer-grade gearboxes, this industrial-grade unit is designed to handle the violent shock loads associated with virgin soil cultivation, rock impacts, and dense root systems. By dropping the input speed through a calculated 1.86 reduction ratio, it ensures the tiller blades rotate at the optimal velocity—fast enough to pulverize clods and mix fertilizers uniformly into the seedbed, but controlled enough to prevent the total destruction of soil structure (dusting). As a trusted Agricultural Gearbox Supplier, we manufacture the TLZ292A to eliminate mid-season catastrophic drive failures, ensuring continuous, profitable uptime for large-scale farming operations.
[ Rotary Tiller Gearbox Diagram Insertion Area ]
*Dimensional layout illustrating the 1″ 3/8 Z6 input spline (Shaft X) and 42x48mm output spline (Shaft Z) relative to the HT200 housing.*
Precise Operating Specifications
The following kinematic and dimensional data outlines the exact operational envelope of the TLZ292A, engineered specifically for Category 1 and Category 2 three-point hitch rotary tillers.
| Engineering Parameter | Rated Value / Designation |
|---|---|
| Gear Ratio (i) | 1.86 : 1 |
| Nominal Input Speed (N1) | 540 RPM |
| Max Input Power (P1) | 47.8 kW (Equivalent to ~64 Mechanical Horsepower) |
| Rated Output Torque (M2) | 1525 Nm |
| Input Shaft Specs (Shaft X) | 1″ 3/8 Z6 (Standard 6-Spline Agricultural PTO) |
| Output Shaft Specs (Shaft Z) | 42 mm × 48 mm (Heavy-Duty Spline) |
Metallurgical & Mechanical Advantages
Massive Torque Density (1525 Nm)
While standard gearboxes fail under the stall conditions of compacted clay, this unit delivers an immense 1525 Nm of continuous output torque. This allows the blades to maintain momentum, slicing through heavy sod and subterranean root networks without bogging down the 47.8 kW tractor engine.
HT200 Cast Iron Architecture
The external housing is cast from high-strength HT200 grey iron. Unlike fabricated steel, the graphite flakes within the cast iron matrix absorb high-frequency vibrations from the tines. Furthermore, it boasts exceptional thermal conductivity, dissipating the extreme internal heat generated by the bevel gears to prevent gear oil degradation.
20CrMnTi Precision Hardened Gears
The internal gears and gear shafts are forged from 20CrMnTi alloy steel. Through a rigorous gas carburizing and quenching process, the gear teeth achieve a surface hardness of 56-62 HRC for unmatched wear resistance, while the core remains ductile enough to absorb sudden impact shocks without shattering.
20,000-Hour Benchmark Lifespan
Equipped with premium C&U bearings and multi-lip KSK oil seals to lock out agricultural dust and moisture, the core metallic components of this reducer are engineered for a service life exceeding 20,000 hours under correct operational parameters and routine fluid maintenance.
Critical Agricultural Applications
The specific 1.86 ratio makes this Kotak Gigi Pengolah Tanah Putar ideal for implements requiring aggressive soil engagement. It is extensively deployed in:
- Primary Seedbed Preparation
Drives L-shaped or C-shaped blades to slice, lift, and mix the soil horizon, ensuring optimal aeration and moisture retention for sensitive crop germination. - Stubble & Cover Crop Incorporation
Provides the extreme torque required to chop post-harvest corn stalks, wheat stubble, or green cover crops and blend them deeply into the topsoil to accelerate biological breakdown. - Orchard & Vineyard Weed Management
Serves as an eco-friendly mechanical alternative to chemical herbicides, ripping weed root systems from the inter-row pathways without damaging the primary crop.
Complete Ag-Power Drivetrain Solutions
A gearbox cannot operate in isolation. To guarantee maximum safety and efficiency from the tractor’s flywheel to the tiller tines, we supply a fully integrated suite of matching power transmission hardware:
Agricultural PTO Shafts
Engineered to mate perfectly with the 1″ 3/8 Z6 input spline. These telescopic shafts feature hardened universal joints to accommodate the dynamic lifting and lowering angles of the 3-point hitch during headland turns.
Slip Clutches & Shear Bolt Yokes
Crucial insurance for your drivetrain. If the tiller encounters a massive subsurface rock, the friction plates will slip (or the calibrated shear bolt will cleanly snap), severing the power link before the 1525 Nm torque can shatter the gearbox’s internal teeth.
Side Gear / Chain Drives
Once the central gearbox redirects the power laterally, our robust side-mounted roller chain systems or secondary gear trains carry the rotational force smoothly downward to the actual horizontal rotor shaft holding the tines.
Forged Tiller Blades
High-carbon steel C-type and L-type rotary blades that bolt to the rotor. Matched to the output RPM of the gearbox to ensure optimal cutting velocity without premature dulling.
Expert Technical FAQ
1. Is this a suitable Rotary tiller gearbox replacement for Comer?
Yes. The TLZ292A is explicitly reverse-engineered as a direct drop-in replacement of Comer code TLZ292A gearbox. It seamlessly matches the 1.86 ratio, bolt-hole patterns, and 6-spline input configuration.
2. How does the 540 RPM tractor PTO rotary tiller gearbox ratio work?
The 1.86:1 reduction ratio takes the tractor’s standard 540 RPM PTO speed and slows it down to approximately 290 RPM at the output shaft. This specific speed maximizes torque (1525 Nm) while maintaining enough blade velocity to cleanly cut plant roots.
3. What type of lubrication is required for the HT200 cast iron housing?
The gearbox requires heavy-duty EP (Extreme Pressure) gear oil, typically SAE 80W-90 or 85W-140 depending on your ambient climate. Units are shipped dry; you must fill to the indicated sight-glass level before engaging the PTO.
4. Can this agricultural gearbox run in a counter-clockwise direction?
The internal bevel gears and bearing preloads are optimized for standard tractor rotation (clockwise when facing the tractor PTO). Sustained reverse operation can compromise the KSK oil seals and induce premature gear face pitting.
5. What maintenance guarantees the 20,000-hour life expectancy?
Perform an initial oil drain and flush after the first 50 hours to remove metallic break-in particles. Subsequently, replace the gear oil annually or every 500 operating hours. Keep the breather plug free of caked mud to prevent internal pressure blow-outs.
Secure Your Supply Chain with Premium Ag-Drives
Do not let inferior transmission components bottleneck your agricultural machinery. Whether you require a high-volume batch of the TLZ292A or a fully customized OEM gearbox based on your specific blueprints, our factory delivers uncompromising quality at wholesale pricing.
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