Product Overview
In the demanding world of mining and minerals, the Flender H3SH13 serves as a vital component in high-torque drive trains. Designed for 132kW power throughput, this unit utilizes three stages of high-precision helical gearing to achieve the slow output speeds necessary for primary conveyors, feeders, and processing equipment. The H3SH13 is built using high-alloy case-hardened steel gears, which are flank-ground to minimize friction and noise. Its torsion-resistant housing is specifically designed to absorb the shock loads and vibrations typical of underground and open-pit mining environments, providing a stable foundation for long-term power transmission.
Technical Parameter Table
| Technical Parameter | Specification Detail |
| Rated Input Power (Pn) | 132 kW |
| Nominal Torque (T2n) | 80,000 Nm |
| Reduction Stages | 3 (Helical) |
| Output Shaft Diameter | 180 mm / 190 mm |
| Center Distance | Optimized for Size 13 Frame |
| Housing Grade | GJS Nodular Cast Iron (Mining Grade) |
| Efficiency Rating | Approx. 94.5% |
| Unit Weight | ~1,980 kg |
H3SH13 Mining Specifics
Mining-Grade Housing Rigidity: The Size 13 casing features extra-thick internal ribbing designed to prevent housing distortion under 80,000 Nm peak torque loads, ensuring perfect tooth alignment in rugged terrain.
Triple-Stage Thermal Dispersion: By distributing the 132kW energy across three gear meshes, the H3SH13 spreads thermal friction over a larger surface area, reducing the risk of oil film breakdown during continuous high-load cycles.
Taconite-Ready Sealing: This model is designed for seamless integration with Taconite labyrinth seals, which use a grease-filled barrier to prevent abrasive mining dust (silica, coal, or ore) from entering the oil sump.
Mining Drive Accessories & Modular Solutions
Integrated Backstop Protection
For inclined conveyor systems, the H3SH13 can be fitted with an internal, maintenance-free backstop. This centrifugal-lift-off design allows the gearbox to rotate freely in the drive direction but locks instantaneously in the event of a power failure, preventing dangerous load roll-back.
External Oil Cooling Systems
In high-ambient mining environments, the H3SH13 is often paired with a shaft-driven mechanical fan or an integrated oil-to-water cooling coil. These options significantly boost the thermal limit of the unit, allowing it to maintain the 132kW output without exceeding safe operating temperatures for the lubricant.
Related Model Reference Table
| Model Code | Nominal Power | Shaft Type | Primary Use Case |
| H3SH12 | 90 - 110 kW | Solid Shaft | Secondary Conveyors |
| H3DH13 | 132 kW | Hollow Shaft | Shaft-Mounted Drive |
| B3SH13 | 132 kW | Right-Angle | Perpendicular Feeders |
| H3SH14 | 160 - 200 kW | Solid Shaft | Primary Crushers |
Industry Applications
Surface Mining: Main drive for high-capacity overland conveyors and reclaimers.
Underground Mining: Drive units for heavy-duty apron feeders and bucket elevators.
Mineral Processing: Powering large-scale thickeners, agitators, and horizontal mill auxiliary drives.
Material Handling: Reliable transmission for stackers and ship loaders in mining ports.
FAQ
1. Is 132kW the maximum power the H3SH13 can handle?
132kW is the nominal rating for the frame. Depending on the service factor required for your specific mining application and the gearbox ratio, the peak input power may vary. We recommend a full technical verification for shock-heavy applications.
2. What is the advantage of triple reduction for mining?
Mining machines often need to move heavy loads at very slow speeds. Triple reduction (H3) provides the high ratios (up to 112:1) needed for this while maintaining much higher mechanical efficiency and reliability than using smaller gear units at their thermal limits.
3. Does the H3SH13 require a forced lubrication pump?
For most horizontal mining applications, splash lubrication is sufficient. However, if the unit is installed on an incline or at very low input speeds, we can integrate a motor-driven or shaft-driven oil pump to ensure the upper bearings remain lubricated.
4. How is the H3SH13 protected from corrosion in underground mines?
Every unit is finished with a high-durability epoxy coating and the internal components are treated with a VCI (Volatile Corrosion Inhibitor) oil. For highly corrosive environments, we can provide specialized multi-layer paint systems.
5. What is the standard oil change interval for this size?
Under normal mining operations, we recommend mineral oil changes every 5,000 hours. If high-performance synthetic oil is used, this interval can be extended up to 15,000 hours, depending on the average operating temperature.
6. Can the H3SH13 be used with a VFD (Variable Frequency Drive)?
Absolutely. The H3SH13 is fully compatible with VFD-controlled motors. At very low speeds, however, we should check if the cooling capacity or lubrication needs to be supplemented.
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