  Pointwise zero velocity helicity density is shown not to prevent steady flows
from acting as kinematic dynamos. We present numerical evidences that such
flows can generate both small-scale magnetic fields as well as, by the magnetic
$\alpha$-effect or negative eddy diffusivity mechanisms, large-scale ones. The
flows are constructed as curls of analytically defined space-periodic steady
solenoidal flows, whose vorticity helicity (i.e., kinetic helicity) density is
everywhere zero.
