IMT, MAIT lock type Kelly bar, Full interlocking kelly bar

Full-interlocking Kelly bar

全锁扣加压钻杆

Full-interlocking Kelly bar is composed of three weld-on ribs with continuous concave and convex keys (see chart) During the drilling process, the downward thrust is transmitted to drill bucket directly by rotation power of Rotary head inner ribs and Kelly bar outer ribs at any time . This type of Kelly bar is the best one of transferring pressure at present , especially for hard ground and frozen oil layer construction. In the drilling process , every continuous steps can form pressure point to reduce wear and tear of local pressurization key lines, also to avoid the stick problem that Kelly pipe is deformation always in a part pressurization. When drilling progress, driving the inner convex concave tooth key and the outer convex concave tooth key uniformly forms good engagement, the advantage is force uniform, not easy to stick pipe, particularly to improve work efficiency . It has gotten high praise from home and abroad rotary rig user.
This type Kelly bar has applied for patent, the patent No. is 201420542679.2.

全锁扣加压钻杆是由三组带凹凸齿的键条等分组合而成（见图所示）。

全锁扣加压钻杆在钻孔过程中动力头旋转的内键与钻杆外键可以随时随处形成锁扣加压，直接将动力头上的加压力通过钻杆的凹凸齿直接全力传送到钻头上，目前这种钻杆传递加压力是最好的, 特别是对坚硬的地层及冻土层的施工。

在钻进过程中对钻杆每个部位都可以形成加压点，减少对始终局部受加压齿键条的磨损，也避免了钻杆始终在某一部位加压易造成管壁变形卡钻的难点，用时驱动内键均布的凹凸齿键与外凹凸齿键形成良好的啮合，在加压的部位形成多点加压，受力均布稳定不易卡钻，尤为提高工作效率，从而得到很多旋挖用户的好评。

该钻杆已申请专利，专利号：201420542679.2

New High -efficency Full-Interlocking Kelly Bar

New High -efficency Full-Interlocking Kelly Bar

 新型高效全锁扣钻杆

New High -efficency Full-Interlocking Kelly Bar is composed of interlocking Kelly bar and full interlocking  Kelly bar. It’s our leading procucts.

The first section is ordinary interlocking type,internal keys of inner sections are composed of three groups of pressure stage. The outer keys are consisted of  three- piece of three group of concave - convex pressure stage.

This type kelly bar is based on domestic rig configuration and condition demand, combined with the home and abroad advanced manufacture technology, supporting domestic and foreign rotary piling rig.Adope high-strength alloy steel and wear-resistant alloy strip,take special process to the pressure point,kelly box head ,stop ring and other wearing spares,to make sure the durability and reliability of kelly bars.This kind of kelly bar is especially suitable for hard layer,frozen layer,pebble layer.With the advantage of large downward transmission pressure ,small pressure loss,fast transmission speed.

This type Kelly bar has applied for patent, the patent No. is 201420542676.9

新型高效全锁扣钻杆 是由普通机锁钻杆与全锁扣钻杆组合简化合成,为我公司的主打产品。

该钻杆第一节为普通机锁钻杆形式，里面几节内键是由三组加压台阶组成，外键由三段三组凹凸形式的加压台阶组成。

新型高效全锁扣钻杆 是根据国内钻机配置需要和工况需求，结合国外钻杆的加工设计工艺制造，配套于国内外各种大型旋挖钻机。该钻杆采用高强合金管材，耐磨合金键条，并对加压点，方头，挡环等易损件作特殊工艺处理，确保钻杆的可靠性和使用性。该钻杆适合于坚硬的岩石底层，冻土层，鹅软石层，钻杆的向下传递加压力大，压力损失小且传递速度快。

该钻杆已申请专利，专利号：201420542676.9  （新型高效耐用机锁钻杆）

JTHL is a professioanl Kelly bar manufactory which founded in 2004 year, the main

workshop located in Daxing district, Beijing. The branch workshop located in Shouguang city, Shandong province, China. Which specialized in producing Kelly bar , Refurbished used drilling rig. Drilling rig spare parts, like gaerbox, motor, swivel joint, etc. 

The advantages of our Kelly bar ,such as low weight,high strength,high abrasion-resistance, highly-reliability are safeguarded technology by superior process, advanced machining equipments and special fixtures. Especially the patent technology bigeger lock Kelly bar is specially for strong hard rock layer, higher drilling working efficiency, more resistant to wear and tear.Normal standard dimension replacement spare parts as ready stock to ensure quickly delivery time.

Till now we have dozens of technical patents, ISO9001:2008 certifications, SGS. 35 production proprietary technologies . And we have dealer in Hunan province, middle agent in Singapore, UAE, Thailand. End customer in Colombia, Malaysia, Egypt, Vietnam, Pakistan, etc.

We sincerely to supply you with good quality and professional technology.

Our company is based on the ''Conduct myself faithfully,Concentrate on work'' as the principle, based on the spirit of "Customer-orientated" service attitude, and '' Honesty , Pioneering ,Innovative and Pragmatic'' as the business management philosophy. Aiming to imporve technology of piling rig kelly bars constantly. Continuously improve the localization work of piling rig maintenance and spares.Continuously imporve product quality. We strive to provide customer with the first-class management , advanced manufacturing technology, professional maintenance technology and after-sale service , and hope to be best cooperation partner with all the rotary piling rig customers.

Kelly bar factory

JTHL is a professioanl Kelly bar manufactory which founded in 2004 year, the main

workshop located in Daxing district, Beijing. The branch workshop located in Shouguang city, Shandong province, China. Which specialized in producing Kelly bar , Refurbished used drilling rig. Drilling rig spare parts, like gaerbox, motor, swivel joint, etc.

The advantages of our Kelly bar ,such as low weight,high strength,high abrasion-resistance, highly-reliability are safeguarded technology by superior process, advanced machining equipments and special fixtures. Especially the patent technology bigeger lock Kelly bar is specially for strong hard rock layer, higher drilling working efficiency, more resistant to wear and tear.Normal standard dimension replacement spare parts as ready stock to ensure quickly delivery time.

Till now we have dozens of technical patents, ISO9001:2008 certifications, SGS. 35 production proprietary technologies . And we have dealer in Hunan province, middle agent in Singapore, UAE, Thailand. End customer in Colombia, Malaysia, Egypt, Vietnam, Pakistan, etc.

We sincerely to supply you with good quality and professional technology.

Our company is based on the ''Conduct myself faithfully,Concentrate on work'' as the principle, based on the spirit of "Customer-orientated" service attitude, and '' Honesty , Pioneering ,Innovative and Pragmatic'' as the business management philosophy. Aiming to imporve technology of piling rig kelly bars constantly. Continuously improve the localization work of piling rig maintenance and spares.Continuously imporve product quality. We strive to provide customer with the first-class management , advanced manufacturing technology, professional maintenance technology and after-sale service , and hope to be best cooperation partner with all the rotary piling rig customers.

JTHL is a professional Kelly bar manufacturer, Refurbished used drilling rig, drilling buckets, drilling auger, Casing tube, Tremie pipe www.kelly-bar.com There are lots of model of drilling tools, it depends on the bore d hole diameter, the soil layer condition,and so on. The basic model of drilling tools. Drilling Buckets Drilling buckets, it can be rock drilling buckets, applicable for gravel, pebble, highly or medium weathered rock. Or the soil drilling buckets, applicable for silt, gravel,clay and highly weathered rock. double open or single open drilling buckets, double bottom gate or single bottom gate drilling buckets,the drilling buckets with bullets or soil drilling teeth, with or without center pin drilling buckets. Drilling Auger According to the soil layer condition , it can be rock drilling auger with bullets,location by pilot double or single spiral, applicable for medium weathered rock, bedrock; or the soil drilling auger with drilling teeth, Usually it should be straight auger type, better for carry soil.applicable for clay,high-weathered layer, gravel layer. Core barrel Core barrel can be with bullet teeth,with roller bits, or can be with double shell, actually it can be several models based on the customers need. Open type bucket Large inlet of soil, open shell design, easy to drum spoil so increase the drilling efficiency.applicable for clay,slit, highly weathered rock. More details you need , please search www.kelly-bar.com or email kelly-bar@hotmail.com amy@chianjthl.com MB;86-18210143398

Morning, Your best choice of kelly bar for your#drilling rig.

Interlocking or friction kelly bar ？ www.kelly-bar.com 

Contact me: 

Mobile/Whatsapp/Wechat:+86 18210143398

Email: kelly-bar@hotmail.com

wechat / QQ: 863164582

Website:www.kelly-bar.com

Quick Details

• Place of Origin:BEIJING, China (Mainland)
• Brand Name:JTHL
• Material:35CrMo 27SiMn Q345B under quenched-tempered heat reatment
• Application:Bauer Sany XCMG MAIT XCMG CASAGRANDE IMT LIEBHERR CMV NCB ZOOMLION MAIT SOILMEC SUNWARD Rotary Drilling Rig ETC..
• Delivery:Sea kelly bar shipping
• Condition:100%new kelly bar
• Warranty time:12 Months , kelly bar warranty time
• Type:INTERLOCKING KELLY BAR / FRICTION KELLY BAR / MIX - LOCK KELLY BAR
• Color:Customer Required , kelly bar color
• Kelly bar Pipe:High Alloy Seamless Steel Pipe , kelly bar materials
• Certification:ISO9001:2008 SGS , kelly bar quality
• Drilling Depth: 20m to 130m , kelly bar depth

Welding workshop --- JTHL KELLY BAR

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