the chips flow between the plates of the refiner fig1 and 2 show a front view and a side view respectively of a stator or rotor plate segment 10 having an inlet section 12 and an outer section 14 an array of plate segments is arranged in an annulus on a refiner disk to form an annular refining plate the plate is mounted on a disk in a disk refiner a rotor plate faces a stationary stator plate with a refining gap between the plates the plate is formed of plate segments 10 arranged in an annular array on the disk the plate segments of a stator plate may have similar bar and groove features as an opposing rotor plates or the stator and rotor plates may have different bar and groove features the rotational direction for the rotor plate is typically counter clockwise the stator plate is typically stationary a refining gap is defined between the opposing stator and rotor plates the inlet section 12 is the feeding part of the plate the inlet section 12 feeds the incoming fibrous material to the outer refining section 14 preferably with minimal frictional energy and minimal work of the feed material the inlet section may include coarse bars 16 that feed the chip material to the outer section between the.