LEFFER
STAHLBAU - APPARATE- UND MASCHINENBAU - LEICHTBAU - MONTAGEN
Stahl- und Apparatebau Hans Leffer GmbH & Co. KG
⋅
Postfach 20 03 60
⋅
66044 Saarbrücken
Ust-IdNr.:DE 814736552
40-010137
Hausanschrift:
Telefon
+49
-
6897-793-0
Bankverbindungen:
Pfählerstraße 1, Dudweiler, 66125 Saarbrücken / Deutschland
Telefax
+49-6897-793 330
Landesbank Saar Girozentrale, Saarbrücken
+49-6897-793 217
Nr. 5182-001
(BLZ 590 500 00)
Briefanschrift:
Bayerische Hypo- und Vereinsbank AG, Mannheim
Postfach 20 03 60, 66044 Saarbrücken / Deutschland
Nr. 7 002 580
(BLZ 670 201 90)
Express-Station:
Handelsregister Saarbrücken HRB 4398
Geschäftsführer: Hans G. Leffer, Georg Leffer
Hauptbahnhof, 66111 Saarbrücken / Deutschland
19
L
H
The center rod which stabilizes the clamping collar is attached to the rear link of
the clamping collar by a cardan joint and to the stabilator by the center bolt.
To compensate the difference of length during oscillating, the stabilator is
mounted movable to the base frame by two guiding blocks, which are also
transferring the torque to the base and consequently to the excavator attachment.
The two lifting cylinders can be operated individually, to make it possible to
adjust the casing to the right or left.
Both cylinders are equipped with spherical bearings on the piston and the rod -
side. This design guarantees the full movability of the clamping collar during
boring.
stroke
: 600 mm 23
41
/
64
”
piston- Ø
: 220 mm 8
21
/
32
”
rod- Ø
: 170 mm 6
11
/
16
”
The stroke of the oscillating cylinders and so the oscillating angle is controlled
by a 4/2-valve on the left hand oscillating cylinder.
The point of switching and so the stroke of the oscillating cylinders, is given by
two stop ends. These stop ends are factory – set!
The base frame is equipped with a retaining device, which consists of two
retaining cylinders and a ring segment.
These two retaining cylinder are operated simultaneous to press the ring segment
onto the casing while the clamping collar is opened during extracting of casings.
stroke
: 110 mm 4
21
/
64
”
piston- Ø
: 140 mm 5
1
/
2
”
rod – Ø
: 110 mm
4
21
/
64
”
