BG 25 (BT 70)

The BG 25 BT 70 rotary drilling rig is ideally suited for:

Drilling cased boreholes (installation of casing by rotary drive or optionally by hydraulic oscillator – both are powered by the drilling rig)
Drilling uncased deep boreholes that are stabilized by drilling fluids
Drilling boreholes with long hollow stem augers (CFA system), with or without kelly extensions
Displacement piles
The base carrier BT 70 is designed and built by Bauer Maschinen

Rotarty Drive KDK 250 K	Metric		Standard
Torque	237	kNm	174,811	lbs-ft
Max Speed of Rotation	30	rpm	30	rpm
Crowd System
Chain Winch
Crowd Force Push	260	kN	58,450	lbf
Crowd Force Pull	260	kN	58,450	lbf
Stroke (kelly bar system)	8145	mm	26.9	ft
Max. Stroke of Sledge	15900	mm	52.5	ft
Crowd Cynlinder
Crowd Force Push	185	kN	41,590	lbf
Crowd Force Pull	260	kN	58,450	lbf
Stroke (kelly bar system)	6700	mm	22.1	ft
Max. Stroke of Sledge	15650	mm	51.6	ft
Main Winch
Line Pull (1st Layer) Effective	200	kN	44,962	lbf
Line Pull (1st Layer) Nominal	250	kN	56,202	lbf
Rope Diameter	28	mm	1.1	inch
Rope Length	90	m	295.3	ft
Max. Line Speed	85	m/min	278.9	ft/min
Auxiliary Winch
Line Pull (1st Layer) Effective	80	kN	17,985	lbf
Line Pull (1st Layer) Nominal	100	kN	22,481	lbf
Rope Diameter	20	mm	0.79	inch
Rope Length	50	m	164.1	ft
Max. Line Speed	47	m/min	154.2	ft/min
Max. Pile Diameter Crowd Winch	1700	mm	5.6	ft
Max. Pile Diameter Crowd Cylinder	1900	mm	6.3	ft
Drilling Depth Standard	25.1	m	82.4	ft
Drilling Depth Max.	57.3	m	188	ft
Base Carrier			BT 70
Engine			CAT C 7
Rate Output ISO 3046-1	205	kW@1800	275	hp@1800
Hydraulic Power Output	146	kW	196	hp
Hydraulic Pressure	320	bar	4,641	psi
Operating Weight	77	t	169,785	lbs
Overall Height	22.8	m	74.8	ft

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