Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both at home and abroad, we can produce first-class kelly bar which can be compared favorably with the imported ones. The features of UNIMATE kelly bar are as follows: Adopt the advanced technology of 6-key design in the world and standard modular design. Equipped with advanced processing facilities, workmanship and manufacturing equipments, UNIMATE kelly bar enjoys a low weight, high strength, high straightness of single bar, thinner tube, smaller inter-tube distance and good abrasion resistance. The raw materials are either imported from Germany like the high abrasion resistance materials, or from Chinese top manufacturer such as the seamless steel tube with alloy. All the tubes made in China are specially made seamless alloy tube, which guarantees the accuracy of the sizes, location, physical properties and easy welding. The small-diameter tubes undergo reheat treatment. The friction kelly bar can be used under full torque. All the outer keys have undergone special heat treatment; therefore, they possess higher hardness, higher flexibility and excellent welding properties, which provide higher abrasion resistance to the keys. There are mainly two types of Kelly bars: 1-Interlocking Kelly Bar 2-Friction Kelly Bar Friction Kelly Bar Friction Kelly bars are used with piling rigs for drilling in silt, clay and less dense sand and gravel. The Friction Kelly bars manufactured by Unimate are un-lockable with drive keys on each section. Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose. Steel pallet, wooden case.
Kelly bar is the key part of a drilling machine, and its quality directly affects the performance of the whole machine. The main purpose of kelly bar is to transfer the torque of rotary drive and crowd pressure of the crowd system to the drilling tool. Based on the rich manufacturing experience and by absorbing the advanced technology both at home and abroad, we can produce first-class kelly bar which can be compared favorably with the imported ones. The features of Unimate kelly bar are as follows: Adopt the advanced technology of 6-key design in the world and standard modular design. Equipped with advanced processing facilities, workmanship and manufacturing equipments, UNIMATE kelly bar enjoys a low weight, high strength, high straightness of single bar, thinner tube, smaller inter-tube distance and good abrasion resistance. The raw materials are either imported from Germany like the high abrasion resistance materials, or from Chinese top manufacturer such as the seamless steel tube with alloy. All the tubes made in China are specially made seamless alloy tube, which guarantees the accuracy of the sizes, location, physical properties and easy welding. The small-diameter tubes undergo reheat treatment. The friction kelly bar can be used under full torque. All the outer keys have undergone special heat treatment; therefore, they possess higher hardness, higher flexibility and excellent welding properties, which provide higher abrasion resistance to the keys. There are mainly two types of Kelly bars: 1-Interlocking Kelly Bar 2-Friction Kelly Bar Interlocking Kelly Bar Interlocking Kelly bars are used with piling rigs for drilling in dense sand and gravel and weak to strong rock. The Interlocking Kelly bars manufactured by Unimate can be fully locked by mechanical locking system on each section. Kelly bars can be equipped with specially designed springs or pressure plates for shock absorbing purpose. Steel pallet , wooden pallet.
Foundation equipment supply (fes) kelly bars may be made in friction type and locking type, in 3, 4, 5 or 6 elements for some special occasion. For sake of common application, the external diameter is designed to be in universal dimension, such as 273mm, 299mm, 340mm, 377mm, 406mm, 419mm, 440mm, 470mm, 508mm, etc. High strength steel tube material is picked and heat-treated to arrange production, which enables the kelly bars to work well under maximum torque of the torque output. Kelly keys and guides inside kelly joints are made in highly wear-resistant material for a prolonged maintenance time. Special toolings are set up to ensure the straightness of tubes during welding process.
Now Shenwei Kelly bars have been supplied to BAUER, SOLIMEC, IMT, CMV, MAIT, CASANGRADE ,TESCAR and other drilling rigs imported or locally-made, exported to many countries such as Germany, Malaysia ,Turkey, India, Russia, Ukraine all over the world. These kelly bars are successful used even in the toughest operating conditions. Our Services 1.After-sale and your any inquiried will be dealed within within 24 hours. 2.Desigened according to advanced Modular-element principle with six ribs laid on tubes. 3.The advantages of our Kelly bar, such as low weight, high strength, high abrasion-resistance, high-reliability are safeguarded. 4.Take use of alloy seamless tube imported from Germany Mannesmann or locally-made. Special hot-treatment enhances the material’s strength more than 800Mpa. 5.Ribs made of alloy hot-treated specially enjoy both high hardness and perfect welding performance, high abrasion-resistance leads to high-reliability. 6.Square-stub through forging and heat treating have excellent mechanical properties. 7.Small clearance and high-precision mating of the drill pipe ensure its good working order and service performance. 8.Steel pipes through shot blasting have high surface quality and fatigue strength. 9.Automatic welding equipment can reduce welding defects and promote the reliability of weld seam. 10.Fulfill the rotary drilling rig full torque operation. Company Information Xuzhou Shenwei Foundation Machinery Technology Co., Ltd is located in xuzhou city, jiangsu province in China, we are a leading manufacturer of rotary drilling rig Kelly bars in China. All products are designed by technicians and engineers with many years experience. Shenwei Kelly bar is known for it’s high strength, rigid construction, less maintenance and high durability. We have all kinds of steel pipe, advanced processing equipment and welding equipment, Strict quality control system. Our products can be used full torque.Patent technology specially made six sections kelly bar and five sections interlocking kelly bar significantly improved the rotating drill construction abilit. There are a lot of finished products and semi-finished products inventory in warehouse, production cycle is short, fast delivery.
The variable pitch gear box is an important part of the fan variable pitch system, its main function is to increase the torque of the variable pitch motor on the variable pitch bearing, drive the blade to change the blade pitch Angle at different wind speeds, so that the blade is in the best state of absorbing wind energy, and can drive the blade feathering brake when the wind speed exceeds the cutting wind speed, so as to ensure the machine to run efficiently and smoothly. The variable gear box transmission mechanism is composed of multiple planetary gear trains, usually 3 stages, and the planetary transmission form is NGW type.
Type: interlocking Out diameter:470mm Sections: 4 sections Each elements length: 23m Now Shenwei Kelly bars have been supplied to BAUER, SOLIMEC, IMT, CMV, MAIT, CASANGRADE ,TESCAR and other drilling rigs imported or locally-made, exported to many countries such as Germany, Malaysia ,Turkey, India, Russia, Ukraine all over the world. These kelly bars are successful used even in the toughest operating conditions. Our Services 1.After-sale and your any inquiried will be dealed within within 24 hours. 2.Desigened according to advanced Modular-element principle with six ribs laid on tubes. 3.The advantages of our Kelly bar, such as low weight, high strength, high abrasion-resistance, high-reliability are safeguarded. 4.Take use of alloy seamless tube imported from Germany Mannesmann or locally-made. Special hot-treatment enhances the material’s strength more than 800Mpa. 5.Ribs made of alloy hot-treated specially enjoy both high hardness and perfect welding performance, high abrasion-resistance leads to high-reliability. 6.Square-stub through forging and heat treating have excellent mechanical properties. 7.Small clearance and high-precision mating of the drill pipe ensure its good working order and service performance. 8.Steel pipes through shot blasting have high surface quality and fatigue strength. 9.Automatic welding equipment can reduce welding defects and promote the reliability of weld seam. 10.Fulfill the rotary drilling rig full torque operation. Company Information Xuzhou Shenwei Foundation Machinery Technology Co., Ltd is located in xuzhou city, jiangsu province in China, we are a leading manufacturer of rotary drilling rig Kelly bars in China. All products are designed by technicians and engineers with many years experience. Shenwei Kelly bar is known for it’s high strength, rigid construction, less maintenance and high durability. We have all kinds of steel pipe, advanced processing equipment and welding equipment, Strict quality control system. Our products can be used full torque.Patent technology specially made six sections kelly bar and five sections interlocking kelly bar significantly improved the rotating drill construction abilit. There are a lot of finished products and semi-finished products inventory in warehouse, production cycle is short, fast delivery.
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Now Shenwei Kelly bars have been supplied to BAUER, SOLIMEC, IMT, CMV, MAIT, CASANGRADE ,TESCAR and other drilling rigs imported or locally-made, exported to many countries such as Germany, Malaysia ,Turkey, India, Russia, Ukraine all over the world. These kelly bars are successful used even in the toughest operating conditions. Our Services 1.After-sale and your any inquiried will be dealed within within 24 hours. 2.Desigened according to advanced Modular-element principle with six ribs laid on tubes. 3.The advantages of our Kelly bar, such as low weight, high strength, high abrasion-resistance, high-reliability are safeguarded. 4.Take use of alloy seamless tube imported from Germany Mannesmann or locally-made. Special hot-treatment enhances the material’s strength more than 800Mpa. 5.Ribs made of alloy hot-treated specially enjoy both high hardness and perfect welding performance, high abrasion-resistance leads to high-reliability. 6.Square-stub through forging and heat treating have excellent mechanical properties. 7.Small clearance and high-precision mating of the drill pipe ensure its good working order and service performance. 8.Steel pipes through shot blasting have high surface quality and fatigue strength. 9.Automatic welding equipment can reduce welding defects and promote the reliability of weld seam. 10.Fulfill the rotary drilling rig full torque operation. Company Information Xuzhou Shenwei Foundation Machinery Technology Co., Ltd is located in xuzhou city, jiangsu province in China, we are a leading manufacturer of rotary drilling rig Kelly bars in China. All products are designed by technicians and engineers with many years experience. Shenwei Kelly bar is known for it’s high strength, rigid construction, less maintenance and high durability. We have all kinds of steel pipe, advanced processing equipment and welding equipment, Strict quality control system. Our products can be used full torque.Patent technology specially made six sections kelly bar and five sections interlocking kelly bar significantly improved the rotating drill construction abilit. There are a lot of finished products and semi-finished products inventory in warehouse, production cycle is short, fast delivery.
Now Shenwei Kelly bars have been supplied to BAUER, SOLIMEC, IMT, CMV, MAIT, CASANGRADE ,TESCAR and other drilling rigs imported or locally-made, exported to many countries such as Germany, Malaysia ,Turkey, India, Russia, Ukraine all over the world. These kelly bars are successful used even in the toughest operating conditions. Our Services 1.After-sale and your any inquiried will be dealed within within 24 hours. 2.Desigened according to advanced Modular-element principle with six ribs laid on tubes. 3.The advantages of our Kelly bar, such as low weight, high strength, high abrasion-resistance, high-reliability are safeguarded. 4.Take use of alloy seamless tube imported from Germany Mannesmann or locally-made. Special hot-treatment enhances the material’s strength more than 800Mpa. 5.Ribs made of alloy hot-treated specially enjoy both high hardness and perfect welding performance, high abrasion-resistance leads to high-reliability. 6.Square-stub through forging and heat treating have excellent mechanical properties. 7.Small clearance and high-precision mating of the drill pipe ensure its good working order and service performance. 8.Steel pipes through shot blasting have high surface quality and fatigue strength. 9.Automatic welding equipment can reduce welding defects and promote the reliability of weld seam. 10.Fulfill the rotary drilling rig full torque operation. Company Information Xuzhou Shenwei Foundation Machinery Technology Co., Ltd is located in xuzhou city, jiangsu province in China, we are a leading manufacturer of rotary drilling rig Kelly bars in China. All products are designed by technicians and engineers with many years experience. Shenwei Kelly bar is known for it’s high strength, rigid construction, less maintenance and high durability. We have all kinds of steel pipe, advanced processing equipment and welding equipment, Strict quality control system. Our products can be used full torque.Patent technology specially made six sections kelly bar and five sections interlocking kelly bar significantly improved the rotating drill construction abilit. There are a lot of finished products and semi-finished products inventory in warehouse, production cycle is short, fast delivery
