Main Parameters

Spec. & Model

Length (mm)

Allowable Bending Moment (KNM)

Adjusting Angle

Beam Hardness （HB）

Monospar Load （KN）

Beam

Articulating Part

Top and Bottom

Left and Right

DJB600/470

600

52.5

30

≥7

≥3

300∽ 350

≥470

DJB800/420

800

≥420

DJB1000/300

1000

≥300

DJB1200/300

1200

≥300

Standard

Coal Industrial Standard of the PRC. MT30-2000 Metal Roof Bar

Use

DJB metal articulated room beam, together with single hydraulic prop or friction support, is used for roof support of working surface of ordinary materials.