|
Artículo
|
Valor
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Unidad
|
|
Modelo
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SR250
|
-
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|
Par máximo de salida
|
250
|
kN·m
|
|
Diámetro máximo de perforación
|
2300
|
mm
|
|
Profundidad máxima de perforación (barra Kelly de fricción)
|
69
|
metro
|
|
Profundidad máxima de perforación (barra Kelly entrelazada)
|
54
|
metro
|
|
Velocidad del cabezal giratorio
|
6–28
|
rpm
|
|
Fuerza máxima de la multitud
|
208
|
kN
|
|
Fuerza máxima de extracción
|
256
|
kN
|
|
Peso operativo
|
74000
|
kg
|
|
Potencia nominal del motor
|
242 @ 2000
|
kW/rpm
|
|
Capacidad de elevación del cabrestante principal
|
256
|
kN
|
|
Tipo de chasis
|
Chasis de orugas retráctil
|
-
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|
Norma de emisiones
|
Etapa III de la UE / Nivel 3 de la EPA
|
-
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Perforadora rotativa SANY SR250 con descarga automática de tierra
Descripción
Descripción detallada
Descripción
Strong rock penetration and wide geological coverage
250-260 kN · m torque+high pressure, stable drilling into 30-50 MPa moderately weathered rocks (limestone, sandstone), fast footage in pebble/sand layers.
Standard configuration includes a high-strength drilling rod with a diameter of 440 mm, good torsional rigidity for deep holes (50-70 m), and a verticality of ≤ 1/200.
High efficiency, fast pile completion
The main winch quickly merges and lowers at high speed, reducing drilling/unloading time by 25% and single pile cycle by 15% compared to the same level.
Isuzu/Cummins 242 kW+Kawasaki Hydraulic, with smooth composite action, φ1.8–2.3 m、 The efficiency of piles with a depth of 40-60 meters is outstanding.
Good stability and sufficient safety
Reinforced telescopic chassis+truss type anti vibration mast, low center of gravity, stable construction on soft foundation/steep slope, strong anti overturning ability.
Double rotary reducer, with locked rotation and no shaking during rock drilling; The mast is supported by a large angle oil cylinder and double buffering to protect the drill rod and power head.
Equipped with 360 ° monitoring, one click vertical adjustment, bottom protection, and automatic pulse pressure rock breaking.
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