China oil and gas information

Home > Product > Product > Drilling Products > Drilling Rig > SR Series Rotary Drilling Rig :SR250
SR Series Rotary Drilling Rig :SR250
Share to:
SR Series Rotary Drilling Rig :SR250
Contact Name: Chun Hui (Customer Manager)
Tel: 0086-10-60765906; 13381136726
Address: Sany Industrial Park, Cao Village, Nankou Town, Changping District, Beijing
View More Contact Details >

●  5-level anti-vibration technology absorbs drilling vibrational frequency all- directionally to guarantee high stability;
●  The special lubricating system makes sure that it can work in high-temperature environment. Rotary drive is available in three drilling modes-standard, low speed and big torque or high speed and small torque; spin-off is optional;
●  The removable key of rotary drive and symmetry structure design double its service life;
●  The main winch has highlights of touch-bottom protection, priority control and fast line speed;
●  Crowd cylinder has two operation modes---normal lifting and fast lifting to improve push efficiency;
●  Mast features automatic erecting, lying and vertical adjustment to ensure the accuracy requirements in construction;
●  Balance control system of the whole machine is available.

Main performancesUnitParameters
Overall heightmm21,627
Operating weightt74
Max. pile diametermm2,300
Max. pile depth(friction Kelly/inter-locking Kelly)m64/50
Rotary Drive
Max. output torquekN.m250
Speed of rotationrpm7~26
Crowd system
Crowd forcekN208
Line pullkN200
Main winch 
Line pull(1st layer)kN256
Rope diametermm32
Max. line speedm/min63
Auxiliary winch
Line pull(1st layer)kN110
Rope diametermm20
Max. line speedm/min70
Mast inclination

Notice:The above information is provided by members themselves who shall take full responsibility for the authenticity, accuracy and legitimacy of the information. COGI shall not be liable for that. To avoid the trading risk, please confirm the supplier's qualification and product quality before placing your order. Also, business license approved suppliers are recommended.