Casing Rotator Casing Oscillators Casings up to 3000 Special Hammer Grab Chisels Interlocking Tremie Pipes
RDM/RDM-M Hydraulic Casing Rotator Type RDM-M Hydraulic Casing Rotator Type RDM A A Z H2 H1 H2 H1 S Hub Y L D C 2400-3400 A B A E B F C L M Technical Data Type RDM und Type RDM-M A LxB C D E F H1/H2 K M S Max./min. casing dia Length x width Min. spacing Width Min. spacing Height min. / max.
Hydraulic Casing Rotator RDM/RDM-M General Remarks RDM-M 2000 in operation The hydraulic full 360 degree turning casing rotators are economically used to construct bored piles with the full casing method under hard soil conditions. The continuous cutting of the hard ground guarantees a boring speed satisfying today's requirements, even for compressive resistance of up to 2500 kg/cm2.
VRM Hydraulic Casing Oscillators N O P M L K J H C I G D A B E F Technical Data Stroke Lifting force Clamping force Rotation angle Torque Operating pressure Travel of casing Weight A Max. casing diameter B Width of machine C Length of machine D Min.
VRM Hydraulic Casing Oscillators General Remarks The hydraulic casing oscillators have been designed in accordance with the latest technical know-how. Extremely sturdy construction guarantees cost-effective use on site. By means of exact statical calculations in conjunction with higher quality material, an optimum conformity of loads, weight and material strength is achieved.
Casing Joint Technical Data 1 7 ∅ D1 ∅ D2 s 4 6 H h 8 5 3 1. Female Part 2. Male Part 3. Locating Key 4. Conical Ring 5. Threaded Ring 6. Bolt 7. Sealing 8.
Casings and Accessories General Remarks The casings are designed to create cased holes down to a depth of 35 m. Especially for the con struction of bored piles by rotary drilling rigs precisely fitting casing joints guarantee a fast placement and bolting of the casings as well as ideal power transmission.
Adapter Technical Data L (upon request) 290 ∅D D 546 626 606 626 646 666 706 716 726 756 806 886 906 1006 1086 1186 1206 1256 1306 1506 1806 2006 Nominal diameter 540/478 620/558 600/520 620/540 640/560 660/580 700/620 710/630 720/640 750/670 800/720 880/800 900/820 1000/920 1080/1000 1180/1100 1200/1120 1250/1170 1300/1220 1500/1420 1800/1720 2000/1910 Quantity of locking bolts 2 2 2 2 2 2 2 2 2 4 4 4 4 4 4 4 4 4 4 6 5 5 Reinforced female part with quick locking bolts
Bottom Casing General Remarks Cutting shoes can be supplied with half-casing connection or as weld-on type.
Lifting Device General Remarks The lifting device enables a quick assembly and dismantling of the casings without damaging the conical rings.
Casing Funnel General Remarks The casing funnel serves as protection for the casing joint and facilitates the insertion of the drilling tools.
HD Casings General Remarks For a diameter of up to 1500 mm we recommend double-walled casings. For weight reasons single walled casings can be used for larger diameters. The bottom casings would always be double-walled.
Casings and Accessories HD General Remarks Heavy Duty Design (Patents in many countries) Because of the further development of hydraulic casing oscillators (type VRM) and the new development of hydraulic full 360 degree turning casing rotators (type RDM) we are now in a position to sink bored piles into depths of 100 m. In order to meet the greater demands facing casing columns operating at such depths, »heavy duty type« casings have been developed.
HD Bottom Casing General Remarks Cutting shoes can be supplied with half-casing connection or as a weld-on shoe.
HD Casing Joint Technical Data ∅ D1 ∅ D2 B s1 s2 Fitting for double walled casings 2 3 H1 3 H2 5 Z 7 1. Female Part 2. Male Part 3. Locating Key 4. Conical Ring 5. Threaded Ring 6. Schraube Bolt 7. Sealing 8.
Lifting Device HD General Remarks The lifting device enables a quick assembly and dismantling of the cas ings without damaging the threaded rings.
HD Casing Funnel General Remarks The casing funnel serves as protection for the casing joint and facilitates the insertion of the drilling tools.
Single/Double Rope Pulley Grab L 770-1460 SK/SZ Single Rope Double Rope Pulley Grab Pulley Grab Chandelier 930 930 1200 Grab body 1200 Body Extension L L Lower part Lower part � 770 � 770 � 970 � 1070 � 1290 � 850 � 1050 � 1360 � 1170 � 1460 � 890 Technical Data Type L770 SK L770 SZ L850 SK L850 SZ L890 SK L890 SZ L970 SK L970 SZ L1050 SK L1050 SZ L1070 SK L1070 SZ L1170 SK L1170 SZ L1290 SK L1290 SZ L1360 SK L1360 SZ L1460 SK L1460 SZ 18 Casing diameter mm 880/800 · 900/820 980/90
Special Hammer 600-3000 Grab for Bored Piles mm General Remarks Robust free-fall grab with high closing force especially suitable for boring in detritus soils and for water-logged pile foundations. The pulleys are equipped with oil-filled maintenance-free life-time bearings.
Single/Double Rope Pulley Grab Single Rope Double Rope Pulley Grab Pulley Grab with teeth with teeth L 1350-2100 RK/RZ Chandelier Grabbody L L 1650 Jaw rods 1860 mm Jaw rods 1700 mm 1650 1800 2100 Technical Data Type L1350 RK L1350 RZ L1650 RK L1650 RZ L1800 RK L1800 RZ L2100 RK L2100 RZ 20 Casing diameter mm 1500/1420 · 1500/1400 1800/1720 · 1800/1700 200/1910 · 2000/1880 2500/2400 · 2500/2380 Length mm 5620 5080 5760 5220 5780 5240 5960 5420 Jaw capacity l 800 900 110 1300 We
Single/Double Rope Pulley Grab Single Rope Double Rope Pulley Grab Pulley Grab L 490-890 SK/SZ Chandelier Grab body Body Extension L L Lower part Lower part � 490 � 490 � 640 � 770 � 530 � 690 � 850 � 590 � 890 Technical Data Type L490 SK L490 SZ L530 SK L530 SZ L590 SK L590 SZ L640 SK L640 SZ L690 SK L690 SZ L770 SK L770 SZ L850 SK L850 SZ L890 SK L890 SZ Casing diameter mm 600/520 · 620/540 620/558 · 640/560 · 660/580 700/620 · 720/640 750/670 800/720 880/800 · 900/820 980/900 1000/920
Single/Double Rope Pulley Grab L 2350-2750 RK/RZ Single Rope Double Rope Pulley Grab Pulley Grab with teeth with teeth Chandelier Grab body with jaw rods L L 2350 2350 2750 Technical Data Type L2350 RK L2350 RZ L2750 RK L2750 RZ 22 Casing diameter mm 2500/2400 · 2500/2380 3000/2840 Length mm 6970 6435 7140 6605 Jaw capacity l 2500 4500 Weight kg 17700 17375 18865 18540
Single/Double Rope Pulley Grab Single Rope Double Rope Pulley Grab Pulley Grab Chandelier L 1350-2250 SK/SZ Grabbody L Jaw rods 1860 mm L Jaw rods 1700 mm 1350 1350 1800 1650 1650 2250 2100 Technical Data Type L1350 SK L1350 SZ L1650 SK L1650 SZ L1800 SK L1800 SZ L2100 SK L2100 SZ L2250 SK L2250 SZ Casing diameter mm 1500/1420 · 1500/1400 1800/1720 · 1800/1700 2000/1910 · 2000/1880 2500/2400 · 2500/2380 2500/2400 · 2500/2380 Length mm 5480 4940 5630 5090 5690 5150 5810 5270
HLKG/HLKG“CD” Hydraulic Spherical Grab General Remarks Technical Data The Hydraulic Spherical Grab type HLKG is used on jobs, where drilling has to be carried out free of vibrations and/or where partially cased or uncased drilled shafts are to be produced. The high deadweight in conjunction with the high closing force ensures a high efficiency. The hydraulic turning device enables the grab to be turned 100° to ensure a calibration of the borehole.
Single/Double Rope Pulley Grab L 2170-2570 SK/SZ Single Rope Double Rope Pulley Grab Pulley Grab Chandelier Grab body with jaw rods L L 2350 2750 2170 2370 2570 Technical Data Type L2170 SK L2170 SZ L2370 SK L2370 SZ L2570 SK L2570 SZ Casing diameter mm 2500/2400 · 2500/2380 2800/2680 2800/2680 · 3000/2840 Length mm 6575 6040 6655 6125 6745 6210 Jaw capacity l 2500 3500 4500 Weight kg 17380 17055 18080 17755 18830 18505 25
LKG 0 Mechanical Spherical Grab Technical Data B B2 Guide Body L L1 L2 Lower part Set of jaws S B1 Casing Type L L1 L2 B B1 B2 S mm 880/800 900/820 1000/920 1180/1100/ 1200/1120 26 Weight Capacity kg l LKG 0-88 3700 4295 4545 600 670 740 785 5800 175 LKG 0-100 3700 4380 4700 600 900 870 890 6000 200 LKG 0-118 3700 4460 4815 600 1000 1040 1065 6750 230
Mechanical Spherical Grab 880-3200 mm General Remarks for bored piles 880 – 3200 mm diameter Double rope grab with high closing force especially suitable for vibration-free boring in semi-hard and hard soil conditions.
LKG 3 Mechanical Spherical Grab Technical Data B2 B Guide Body L L1 L2 Lower part Set of jaws S B1 Casing 28 Type L L1 L2 B B1 B2 S Weight Capacity l 970 2000/1880 LKG 3-200 4600 5700 mm 6100 1500 1770 1650 1810 kg 15050 2200/2080 LKG 3-220 4600 5800 6280 1500 1980 1900 2010 18200 1450 2500/2380 2800/2640 2800/2680 2980/2820 3000/2840 3200/3040 LKG 3-250 4600 6000 6615 1500 2290 2200 2310 19750 2250 LKG 3-280 4600 6125 6850 1500 2560 2460 2580 208
LKG 1 Mechanical Spherical Grab Technical Data B B2 Guide Body L L1 L2 Lower part Set of jaws S B1 Casing Type L L1 L2 B B1 B2 S mm 1180/1100/ 1200/1120 1300/1220 1500/1400/ 1500/1420 1800/1700 1800/1720 2000/1880 2000/1910 Weight Capacity kg l LKG 1-118 4700 5580 5655 870 1020 960 1080 8300 165 LKG 1-130 4700 5630 5745 870 1130 1060 1180 9700 230 LKG 1-150 4700 5745 5955 870 1350 1260 1380 11250 420 LKG 1-180 4700 5915 6285 870 1650 1560 1670 1
NW 150 - NW 250 Interlocking Tremie Pipes General Remarks Water-tight interlocking tremie pipes The tremie pipes can be supplied in all diameters and all lengths, also with charging funnel. Technical Data Charging funnel B Tremie pipes 250 mm , 2.
Type A - Type B Chisel General Remarks To drive casings through rock For the different rock conditions we offer two types of chisel: Type A: Cross chisel with additional tangential cutting edges for rock with a compression strength of less than 1500 kg/cm2. Type B: Round chisel with a cross inside for rock with a compression strength of more than 1500 kg/cm2. The teeth are made of high manganeze steel.
Due to improvement and engineering progress we reserve the right to change specifications without notice. Copyright © · #71006 · 1st Ed · 04/07 · kom DESIGN·1 GmbH München Stahl- und Apparatebau Hans Leffer GmbH & Co. KG P.O. Box 20 03 60, D-66044 Saarbrücken/Germany Tel.: +49 (0) 68 97-7 93-0 Fax: +49 (0) 68 97-7 93-330 info@leffer.de www.leffer.de Liebherr-Werk Nenzing GmbH P.O. Box 10, A-6710 Nenzing/Austria Tel.: +43 50809 41-0 Fax: +43 50809 41-499 crawler.crane@liebherr.com www.liebherr.
