RAKING BRIDGE RECTANGULAR

Bridge frame:

• Hot rolled profiles with transverse and diagonal profiles;
• Hand railings:

• Upper bar, height 1,10m above tread;
• Intermediate bar at half height;
• Plinth, height 150mm, according to ARAB.

Wheel box: 

• 4 guiding wheels each mounted on self-aligning ball bearings,
• dust- and waterproof;
• 4 side guide wheels to guide the bridge along the tank walls;
• All wheels are coated with the durable Vulkollan.

Drive unit:

• 2 of the supporting wheels are driven.
• Motor-gearbox :
• Hollow shaft motor;
• Closed gearbox filled with oil;
• Hermetic motor IP55;
• Isolation class F;
• Mounted on the outside of the bridge.

Bottom scrapers 

• Triangles suspended on the bridge;
• Angled pulling profiles, attached to the bottom scrapers;
• Bottom scraper blades with adjustable height;
• Suspended by stainless steel cables to the cable drums.

Surface scrapers: 

• Suspended to the triangular profiles.

Drive system scrapers: 

• Hollow shaft gearbox motor, oil filled, motor IP55;
• Isolation class F;
• Fitted with electrical brake motor;
• Cable drums with grooved surface;
• All bearings can be greased from the surface of the bridge.

Materials: 

• Bridge: steel, with surface protection:

• Sandblasting SA 2 ½;
• Zinc spraying;
• Epoxy painting 2 layers;
• Surface finish: 2 component polyurethane paint;
• Standard color: Emerald green, RAL6001

• All parts in contact with water:  AISI 304

Electrical equipment: 

• All limit switches: type inductive proximity switches;
• Complete electrical control box with contactors, fuses, automatic switches, signal lamps;
• Complete wiring on the bridge;
• Electrical supply line.