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JVR280D旋挖鉆機

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主卷揚布置在桅桿的最下部，十分便于觀察走繩；采用雙折線繩槽卷筒，使各層之間的負荷均勻分布，大大延長了鋼絲繩的使用壽命，提高施工安全性。
Main winch located at the bottom of the drilling mast which offer good angle foe checking line’s work. Unique design in the line roll could prolong the use life of the steel line and also enhance the construction safety.
液壓系統使用先進的負載反饋技術，可使流量按需分配到系統各個工作裝置，實現各種工況下的最佳匹配，泵、馬達、閥、油管及管接頭均采用進口產品，確保高可靠性。
Hydraulic system adopts advanced load-feedback technology. Realizing hydraulic liquidity allocate to different parts according to the operation demand. Top key parts guarantee high reliability, such as pump, motor, valve, pipe and joint come from international top brands.
CAT336D底盤和上車，履帶間距在3000-4300mm之間調整，將卡特配重后移，增加配重重量，提高整機的穩定性和可靠性。
Configuring CAT336D undercarriage and up structure. The crawler could adjust between 3000mm and 4300mm. The customers could backward the counterweight and increase its weight also for improving the stability and reliability.
采用新材料加強型桅桿結構，結合合理施工工法，可強勁高效入巖。
Using new materials to enhance the mast structure, it can drill into rock efficiently by adopting a reasonable construction method.

機型 Model

JVR280D

最大輸出扭距 Max. output torque (KN.m)

280

最大鉆孔深度 Max. drilling depth (m)

85

最大鉆孔直徑 Max. drilling diameter (mm)

2500

發動機生產廠家 Engine brand

CAT

發動機型號 Engine model

C-9電噴 EFI

發動機功率 Engine power (KW)

261

主泵流量 Main pump flow rate

2×280 L/min@1800rpm

底盤型號 Undercarriage model

CAT336D

牽引力 Traction force (KN)

510

鉆孔轉速 Drilling speed (rpm)

6 - 27

最大加壓力/起拔力 Max. crowd push force (KN)

185 / 200

加壓系統行程 Stroke of sledge (mm)

5200

主卷揚提升力（第一層）Main winch pull (1st layer)

265

主卷揚繩直徑 Main winch wire rope dia. (mm)

Φ32

主卷揚提升速度 Max. main winch line speed (m/min)

65

副卷揚提升力（第一層）Aux. winch line pull (1st layer) (KN)

110

副卷揚繩直徑 Aux. winch wire rope dia. (mm)

Φ20

副卷揚提升速度 Aux. winch line speed (m/min)

70

工作狀態設備寬度/高度 Overall width in drilling position (mm)

4300 / 23058

運輸狀態設備長度/寬度/高度 Overall L/H/W transport position (mm)

16200 / 3000 / 3470

總重量（含鉆桿）Total weight (t)

80
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