Jaw crusher and crushing plant

A jaw crusher comprising:

• frame side walls;
• a rear end connected to the side walls;
• an eccentric supported by the side walls;
• a pitman supported by the eccentric;
• a toggle plate connected between the pitman and a middle section of the rear end comprising a cross wall;
• an upper rear cross beam fixed to the side walls, the upper rear cross beam comprising a substantially vertical wall and substantially horizontal ribs connected to said vertical wall;
• and
• a lower rear cross beam fixed to the side walls, the lower rear cross beam comprising a substantially vertical wall and substantially horizontal ribs connected to said vertical wall,
• wherein the rear end comprises a rear end support connected to the cross wall and located on a center plane of the cross section of the rear end, the rear end support being formed as a beam which is integrated to the cross wall.

A crushing plant comprising:

• a body;
• a jaw crusher mounted on the body and comprising jaw crusher side walls, a rear end connected to the side walls, an eccentric supported by the side walls, a pitman supported by the eccentric, a toggle plate connected between the pitman and a middle section of the rear end comprising a cross wall, wherein the rear end comprises a rear end support connected to the cross wall and located on a center plane of the cross section of the rear end, wherein:
• the rear end support is formed as a beam or return rod supports integrated to the cross wall,
• the crusher comprises an upper rear cross beam fixed to the side walls of the crusher,
• the upper rear cross beam comprising a substantially vertical wall and substantially horizontal ribs connected to said vertical wall,
• the crusher comprises a lower rear cross beam fixed to the side walls of the crusher, and
• the lower rear cross beam comprising a substantially vertical wall and substantially horizontal ribs connected to said vertical wall.