China Professional China Wear Resistance Spiral Shaft lead screw shaft

Product Description

Product Description

Flat Rock Auger, Butterfly Rock Auger, Drilling Rock Auger

Continuous Flight Augers or CFA is suitable for circulation-free drilling of boreholes with small diameter and deep depths above ground water level.
CFA consists of auger bit and spiral kelly bar.
CFA is equipped with different types of hexagonal coupling depending on the type of soil being drilled, drilling method being used and also the drilling diameter.

There are 3 categories of Flat or Butterfly Rock Auger:
A) Single-cut Single-spiral Auger
B) Double-cut Single-spiral Auger
C) Double-cut Double-spiral Auger
Drilling Diameter Range: 500~2500mm

Main Applications:
1. The Single Cut and Double Cut Augers are suitable for drilling in weak fractured rock and very dense sand and CHINAMFG (Less than 5 MPa)
2. Double Cut Augers are mainly used for bigger diameter uncased boreholes and secant piles
3. Double Cut Auger without rock pilot are recommended for fractured rock or moderately weak to moderately strong rock (5~50 MPa)
4. Single Spiral provides high drilling speed, easy cleaning and low rotary resistance
5. Double spiral has better guiding property and efficient carrying-soil capability, but high rotary resistance
Compared with conical auger, flat auger has better guiding property, better carrying-soil capability, but higher rotary resistance

Detailed Photos

Company Profile

Forens, founded in early 2000, is specialized in manufacturing bridge bearing, bridge expansion joint, building expansion joint, and construction bearing. Our company has a registered capital of 8, 800, 000 us dollars, it covers an area of 50, 000 square meters, with a construction area of 20, 000 square meters, there are 200 staff now in our company.
Forens is a modern enterprise which has a leading technology in China, and the advanced production equipment, perfect testing equipment.
It has passed the ISO9001: 2008 international quality system certification and ISO14001: 2004 environmental management system certification.
We have a strong technical force and a professional installation team, perfect after-sales service in our company. Over many years, our products have been widely used in highway, railway bridges, public buildings, etc. We have also successfully take participate in many national key projects and many landmark project. Such as: Xihu (West Lake) Dis. international airport, ZheJiang capital international airport and HangZhou international airport, HangZhou international airport, HangZhou international airport; ZheJiang maglev, ZheJiang light rail, light rail ZheJiang , HangZhou metro; ZheJiang CZPT hub, and HangZhou 6 broad river bridge, ZheJiang HangZhou xiangjiang river bridge, HangZhou tianxingzhou yangtze river bridge, zHangZhoug HangZhouajian bridge.

Delivery&Shipping

1.Safety package, Three steps of packages,pearl cotton,carton and plywood for the transportation
2.100% test before delivering (ensure the quality)
3.Item shipped in about 15-30 working days against payment depends on the quantity 
4.Tracking number will be sent to you as soon as we ship the product 
 

Our Service

FAQ

FAQ(Frequently Asked Questions)
1. You are a trading company or manufacturer?
  -We are manufacturer, and have our own factory.
2. What certificate do you get?
  – ISO9001-2008.
3. What is your MOQ?
  -100m.
4. What is your delivery time when making mass production?
  -About 15 days, the actual time depends on your order quantity.
5. Can you do OEM?
  -Yes, we can. OEM is welcomed.
6. What is your sample policy?
  -We offer free samples, and the buyer takes responsibility of the express charge.
7. How long will it take to prepare samples?  
 -About 3-4 working days.

After-sales Service: Online Technical Support
Warranty: 5years
Type: Rotary Drill Rig
Application: Drilling Machine
Certification: CE, ISO9001: 2000
Condition: New
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Customization:
Available

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screw jack

How do screw jacks ensure controlled and synchronized movement in multi-jack systems?

Screw jacks are capable of ensuring controlled and synchronized movement in multi-jack systems through various mechanisms and techniques. These systems are commonly used in applications where multiple screw jacks need to work together to lift or position a load. Here’s how screw jacks achieve controlled and synchronized movement in multi-jack systems:

  • Mechanical Synchronization: Screw jacks can be mechanically linked in a multi-jack system to ensure synchronized movement. This can be achieved through the use of rigid couplings, connecting rods, or gear mechanisms that interconnect the input shafts of individual screw jacks. As a result, when one screw jack is operated to lift or lower the load, the mechanical linkage transfers the motion to the other screw jacks, causing them to move in sync. This ensures that all jacks contribute proportionally to the load and maintain a consistent lifting height.
  • Electrical Synchronization: In addition to mechanical synchronization, screw jacks can also be electrically synchronized in multi-jack systems. This is typically achieved through the use of motorized screw jacks controlled by a centralized control system. Each motorized screw jack is equipped with position sensors or encoders that provide feedback on their current position. The control system receives this feedback and adjusts the motor speed and direction for each screw jack to ensure synchronized movement. Electrical synchronization enables precise control and allows for adjustments to be made dynamically, compensating for any variations in load distribution or environmental conditions.
  • Load Sharing Mechanisms: In multi-jack systems, load sharing mechanisms can be employed to distribute the weight evenly among the screw jacks. Load sharing mechanisms can include load sensors or load cells that measure the individual loads on each jack. The control system then adjusts the lifting force applied by each screw jack to ensure equal distribution of the load. This prevents overloading of any individual jack and promotes balanced movement in the system.
  • Position Feedback and Control: Screw jacks in multi-jack systems can be equipped with position feedback devices, such as linear encoders or limit switches, that provide information on the position of the load. This feedback is used by the control system to precisely control the movement of the screw jacks, ensuring that they reach and maintain the desired positions. By continuously monitoring the position feedback, the control system can make adjustments to keep the jacks synchronized and maintain the desired level of control.
  • Control System Integration: A centralized control system can be used to integrate and coordinate the operation of multiple screw jacks in a multi-jack system. This control system can utilize programmable logic controllers (PLCs) or computer numerical control (CNC) systems to manage the movement, synchronization, and safety aspects of the screw jacks. The control system enables precise control, real-time monitoring, and the implementation of safety features, enhancing the overall performance and reliability of the multi-jack system.

By employing these mechanisms and techniques, screw jacks ensure controlled and synchronized movement in multi-jack systems. These systems find applications in various industries, such as heavy lifting, material handling, and industrial automation, where precise positioning and synchronized operation are critical requirements.

screw jack

Can screw jacks be customized or integrated into larger systems for specific uses?

Yes, screw jacks can be customized or integrated into larger systems to meet specific requirements and applications. Their modular nature and versatility allow for various customization and integration possibilities. Here are some ways screw jacks can be customized or integrated into larger systems:

  • Load Capacity Customization: Screw jacks can be customized to handle specific load capacities. Manufacturers can design and manufacture screw jacks with different load ratings to accommodate the requirements of a particular application. By customizing the load capacity, screw jacks can be optimized for lifting and supporting a wide range of loads, from light loads in precision applications to heavy machinery in industrial settings.
  • Mounting and Connection Options: Screw jacks can be customized to have different mounting and connection options. This allows for seamless integration into existing systems or specific applications. Manufacturers can provide various mounting configurations, such as flange mounts, base mounts, trunnion mounts, or clevis ends, to ensure easy installation and compatibility with the surrounding equipment or structures.
  • Stroke Length Customization: The stroke length of a screw jack can be customized to suit specific requirements. The stroke length refers to the distance the lifting screw travels during the jack’s operation. By customizing the stroke length, screw jacks can be tailored to the required vertical movement or extension needed in a particular application. This customization ensures optimal performance and efficiency in lifting or positioning tasks.
  • Specialized Materials and Coatings: Screw jacks can be customized with specialized materials or coatings to enhance their performance in specific environments. For example, in corrosive or harsh conditions, screw jacks can be manufactured using corrosion-resistant materials such as stainless steel or coated with protective finishes. This customization ensures the longevity and reliability of screw jacks in demanding applications.
  • Integration with Motorized Systems: Screw jacks can be integrated with motorized systems to automate the lifting and positioning processes. By adding electric or hydraulic motorization, screw jacks can be controlled and synchronized with other components or systems, providing precise and automated operations. This integration enables efficient and programmable movements, reducing manual labor and increasing productivity.
  • Control and Monitoring Integration: Screw jacks can be integrated with control and monitoring systems for enhanced functionality and safety. By incorporating sensors, limit switches, or feedback mechanisms, screw jacks can provide real-time feedback on position, load, or other parameters. This integration allows for accurate control, monitoring, and protection of the screw jack and the larger system it is a part of.

The customization and integration options for screw jacks make them highly adaptable to specific uses and applications. Manufacturers often work closely with customers to understand their requirements and provide tailored solutions that optimize the performance, efficiency, and reliability of screw jacks within larger systems.

screw jack

Can you explain the basic principle behind the operation of a screw jack?

The basic principle behind the operation of a screw jack is the conversion of rotational motion into linear motion. A screw jack consists of a threaded shaft, known as the screw, and a nut that engages with the screw’s threads. When the screw is rotated, it moves the nut linearly along its threads, resulting in linear displacement. Here are some key points regarding the basic principle of operation for a screw jack:

  • Rotational Motion: The operation of a screw jack begins with the application of rotational motion to the screw. This can be achieved through various means, such as manually turning a handle, using an electric motor, or employing hydraulic or pneumatic systems. The rotational motion is typically applied to the top end of the screw.
  • Threaded Shaft: The screw in a screw jack is a threaded shaft with helical grooves running along its length. The threads can be either square or trapezoidal in shape. The pitch of the screw refers to the distance traveled along the screw’s axis for each complete revolution. The pitch determines the linear displacement achieved per rotation.
  • Nut Engagement: The nut is a component that engages with the screw’s threads. It is typically a cylindrical or rectangular block with a threaded hole that matches the screw’s threads. The nut is free to move linearly along the screw’s length when the screw is rotated.
  • Linear Motion: As the screw is rotated, the nut moves along the screw’s threads, causing linear displacement. The direction and magnitude of the displacement depend on the rotational direction and the pitch of the screw. Clockwise rotation typically results in upward linear displacement, while counterclockwise rotation leads to downward displacement.
  • Mechanical Advantage: One of the advantages of a screw jack is its ability to provide a mechanical advantage. The pitch of the screw determines the distance traveled per revolution. By increasing the pitch or using multiple-start threads, the linear displacement achieved per rotation can be increased, allowing for the lifting or lowering of heavier loads with relatively less rotational effort.
  • Self-Locking: The friction between the screw and the nut helps to maintain the position of the load once the rotational force is removed. This self-locking characteristic of screw jacks allows them to hold loads in position without requiring continuous power or external braking mechanisms.

In summary, the basic principle behind the operation of a screw jack involves the conversion of rotational motion into linear motion. By rotating the screw, the nut moves along the screw’s threads, resulting in linear displacement. The pitch of the screw determines the distance traveled per revolution, and the self-locking nature of the screw and nut interface helps maintain the position of the load.

China Professional China Wear Resistance Spiral Shaft   lead screw shaftChina Professional China Wear Resistance Spiral Shaft   lead screw shaft
editor by CX 2023-12-10