Design conveyor drives with clear, practical inputs only. See power breakdown and safety margins instantly. Download reports, compare scenarios, and plan reliable operations now.
Enter known conveyor parameters. Use realistic factors for duty, alignment, and material behavior.
Use this sample to verify outputs and understand the input ranges.
| Case | L (m) | H (m) | v (m/s) | Q (t/h) | Belt (kg/m) | f | SF | η (%) | Motor (kW) |
|---|---|---|---|---|---|---|---|---|---|
| Aggregate incline | 60 | 6 | 1.6 | 180 | 18 | 0.03 | 1.25 | 92 | ≈ 20–30* |
This calculator uses a practical, transparent power balance. Symbols:
Motor power is driven by three contributors: rolling resistance, elevation lift, and startup acceleration. In this calculator, length and belt speed shape rolling power, while throughput and lift height control lift power through the mass flow rate. For screening designs, keep units consistent and start with realistic site targets for capacity (for example 100–500 t/h), belt speed (about 1.0–2.5 m/s), and lift (0–20 m).
The friction factor aggregates idler rolling resistance, belt flexure, and alignment losses. Well-maintained, lightly loaded conveyors may fall near 0.02–0.03, while dusty environments, poor idlers, or heavy loading can push 0.04–0.06. If your calculated friction power dominates, inspect idlers, loading zone sealing, and belt tracking before upsizing the motor.
Throughput converts to mass flow ṁ and then to material load per meter Wm. Higher belt speed reduces Wm for the same capacity, which can lower rolling resistance, but speed increases friction power through P = F×v. Lift power scales directly with ṁ×H. For example, increasing lift from 6 m to 12 m doubles the lift component at the same capacity.
Short acceleration times raise startup power because kinetic energy must be delivered faster. Typical soft-start times of 8–20 seconds reduce peak demand compared with hard starts. Apply service factors when starts are frequent, material is sticky, or the conveyor feeds critical processes. The calculator also adds a 15% selection margin to suggest a standard motor size for procurement.
Export results to CSV for quick comparisons across alternatives such as higher speed, reduced lift, or upgraded idlers. Use the PDF summary for design notes and approvals. When the conveyor operates downhill (negative lift), confirm braking or regeneration requirements because lift power becomes negative and control strategy matters.
It estimates screening-level motor shaft power by combining rolling resistance, lift power, and startup acceleration, then applying accessories allowance, service factor, and efficiency to suggest a practical motor rating.
No. It depends on idler quality, belt condition, alignment, loading zone sealing, and contamination. Start with 0.02–0.05 and refine using plant history, commissioning measurements, or manufacturer resistance data.
Speed affects material mass per meter and also multiplies resistance force to create power. Raising speed can reduce belt loading but increases power for the same resistance force, so the net effect varies.
Use 5–15% for typical scrapers, seals, skirtboards, and plows. Choose higher values for aggressive sealing, high moisture, or heavy-duty cleaning equipment that adds drag.
Use 1.1–1.3 for steady duty, higher for frequent starts, shock loading, or poor control of feed conditions. Always confirm with site duty cycle and drive vendor recommendations.
Yes. A negative lift reduces lift power, but downhill systems may need braking or regenerative drives. Treat negative results as a flag to review controls and safety, not as a final motor selection.
Use it for early design and comparisons. For final procurement, validate with detailed resistance calculations, belt and idler data, gearbox selection, starting method, and safety requirements per your project standards.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.