Bridge cum walkway spanning the full length of the tank, 1000 mm wide
The hand railings would be 1 meter high
The walkway would be made of 5 mm chequered plates
Main drive head of worm gear type, capable of 8,000 to 35,000 foot pounds torque, driven by a Crompton make / your choive of motor and Premium / your choice of gear box
There shall be chain & sprocket transmission between gear box and Drive head
Overload protection device mounted on the drive head
Heavy duty vertical shaft suspended from the drive head
Two truss type torque rake arms fixed to either side of the shaft.Blades and scoops fixed to the rake arms
The rake arms shall carry the grit to the discharge pocket
Suitable number of inlet gates, adjustable type, will be provided on the inlet side of the tank to regulate the influent flow