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Torque Hinge Calculator

Industrial Torque Hinge Calculator

Industrial Torque Hinge Calculator

Hinge Axis (Rotation Center) Center of Gravity (CG) Gravity (mg) d (to CG) 0° → 90° Vertical

Side View: Torque = m × g × d (distance to centre of gravity). Maximum torque occurs at the horizontal (0°) position for flap covers.

Get a Quote for Matched Hinges →
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kg
mm
pcs
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⚠️ Side-opening doors: gravity does not create torque around a vertical hinge axis, so holding torque is not the governing factor. Select a hinge based on the desired damping feel and cycle life, or contact our engineers for a recommendation.
Required Torque per Hinge
0.00
N·m
Based on centre of gravity at the specified distance | Static holding-torque model with safety factor applied

How to Use This Calculator

  • 1. Select the Opening Type: “Top/Bottom Flap Cover” for horizontally-hinged covers, or “Side Opening Door” for vertical-axis doors.
  • 2. Enter Door/Cover Weight: total weight of the door or cover, including anything mounted on it, in kilograms (kg).
  • 3. Enter Distance to Centre of Gravity (d): horizontal distance from the hinge axis to the panel’s centre of gravity, in millimetres (mm). For a uniform flat panel, this is roughly half the panel length.
  • 4. Set Number of Hinges: total number of hinges supporting the door/cover (minimum 1).
  • 5. Set Safety Factor: 1.5 for normal use; 2.0 for high-cycle, vibrating, or safety-critical applications.
  • 6. The calculator computes the required holding torque per hinge in newton-metres (N·m) in real time.
  • ⚠️ Note: for side-opening doors, holding torque is not the governing factor (gravity does not create rotational torque around a vertical axis).

Want to understand the formula behind this calculator? Read our guide on how to calculate torque hinge requirements.