JUNTTAN Introduction section
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1. INTRODUCTION SECTION
The Junttan PM 20L piling rig is designed for pile driving. Maximum
pile length is 18 m. The construction of the machine is a rotating
machinery deck with leader on crawler-mounted undercarriage. The
piling leader consists of a leader, basic leader and optional leader
extension. The bottom of the leader is connected with the cross joint
to the horizontal slide. These allow vertical and horizontal
positioning of the leader. The lateral inclination cylinders and the
forward/backward inclination cylinder control the inclination of the
leader through the upper slide. The leader slides axially in relation to
the basic leader.
There are two winches at the rear of the machinery deck. The winch
on the right is hammer winch and the left one is pile winch. The
ropes of the winches run through sheaves in the upper slide and
cathead to the front of the leader.
The leader lift device lifts and lowers the leader from and to the
transport position.
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