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Dongying Xincheng Petroleum Technology Co., Ltd. was established in 2003 and located at the second oilfield of China—Shengli Oilfield. We have specialized technicians, senior engineers and professional marketing team. Our company is committed to develop, manufacture and supply a variety of oilfield equipments. Main products include : Petroleum equipments & tools such as drilling equipments, oil production equipments, oil pipes, wellhead equipments, downhole tools, well control equipments, cementing tools ,and petrochemicals etc.;
Besides, we also provide oilfield technology service and information automation service to our domestic and foreign customers.
Moreover, we have established a complete quality control system, all products& equipments are manufactured as per international standard and API standard.
Make/Break Unit/Bucking Unit in Oilfield
Introduction
Our makeup and breakout unit is a professional machine widely used in oilfield and mining industry for fast and accurate Makeup or Breakout of threaded connections on downhole tools and equipments.
The basic machine consists of a bed complete with a fixed headstock ,a movable tailstock that applies the torque,and a HPU with control console.
The make/break unit is safely and efficiently operated by one person.
The hydraulic control console can be wired to suit any power supply
Options and Accessories
--Bed length
A common bed length is 10’,other length are available
--Head and tailstock Beam Extension
Achieve any length as required
--Hydraulic support stands
--Hydraulic Push/Pull Assembly
A 48”stroke push/pull cylinder capable of 39,000ft-lbs pushing and 22,500ft-lbs pulling
Technical Specification:
Model Number | DXC 4 1/2”-25 | DXC 7 5/8”-25 | DXC 9 5/8”-40 | DXC 13 3/8”-55 | DXC 10”-70 |
Diameter Capacity-in | 2 3/8”- 41/2” | 2 3/8”- 7 5/8” | 2 3/8”- 9 5/8” | 2 3/8”- 13 3/8” | 2 3/8”- 10” |
Low gear Torque | 25KN.m(17,875ft-lbs) | 25KN.m(17,875ft-lbs) | 40KN.m(28,600ft-lbs) | 55KN.m(39,320ft-lbs) | 70KN.m(50,000ft-lbs) |
High gear Torque | 12KN.m(8,580ft-lbs) | 12KN.m(8,580ft-lbs) | 20KN.m(14,300ft-lbs) | 28KN.m(14,300ft-lbs) | 35KN.m(25,000ft-lbs) |
Low gear Speed | 11rpm | 10rpm | 8rpm | 6rpm | 3-8rpm |
High gear Speed | 50rpm | 30rpm | 16rpm | 12rpm | 8-12rpm |
Oil supply | 80-120L/min | 80-120L/min | 80-120L/min | 80-120L/min | 80-120L/min |
System Pressure | 12Mpa | 16Mpa | 16Mpa | 16Mpa | 16Mpa |
Base Unit Dimension(L×W×H) | 4500*1200*1200mm | 4500*1200*1500mm | 4500*1200*1600mm | 4500*1400*1600mm | 4500*1400*1600mm |
Base Unit Weight | 3500KG | 3300KG | 4500KG | 5500KG | 6000KG |
Console Dimension(L×W×H) | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm |
Model Number | DXC 20”-70 | DXC 13 3/8”-70 | DXC 18”-140 | DXC 18”-265 | DXC 24”-300 |
Diameter Capacity-in | 2 3/8”- 20” | 2 3/8”- 13 3/8” | 2 3/8”- 18” | 2 3/8”- 18” | 2 3/8”- 24” |
Low gear Torque | 70KN.m(50,000ft-lbs) | 70KN.m(50,000ft-lbs) | 140KN.m (100,600ft-lbs) | 265KN.m (190,000ft-lbs) | 300KN.m (214,500ft-lbs) |
High gear Torque | 35KN.m(25,000ft-lbs) | 35KN.m(25,000ft-lbs) | 70KN.m(50,000ft-lbs) | 6KN.m(4,000ft-lbs) | 0.7KN.m(500ft-lbs) |
Low gear Speed | 4rpm | 4rpm | 3-8rpm | 3-8rpm | 2-5rpm |
High gear Speed | 10rpm | 10rpm | 8-12rpm | 8-12rpm | 5-10rpm |
Oil supply | 80-120L/min | 80-120L/min | 80-120L/min | 80-120L/min | 80-120L/min |
System Pressure | 16Mpa | 16Mpa | 16Mpa | 16Mpa | 16Mpa |
Base Unit Dimension(L×W×H) | 4500*1500*2000mm | 4500*1400*1600mm | 4500*1400*1600mm | 4500*1400*1600mm | 4500*1400*2300mm |
Base Unit Weight | 7000KG | 6000KG | 7500KG | 8500KG | 10000KG |
Console Dimension(L×W×H) | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm | 2500*1200*1200mm |



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