Product Description
Product details
Features
- For unstepped shafts
- Single seal
- Balanced
- Independent of direction of rotation
- Encapsulated rotating spring
Advantages
- Especially designed for solids containing and highly viscous media
- Springs are protected from the product
- Rugged and reliable design
- No damage of the shaft by dynamically loaded O-Ring
- Universal application
- Variant for operation under vacuum available
- Variants for sterile operation available
Operating range
Shaft diameter:
d1 = 18 … 100 mm (0.625″ … 4″)
Pressure:
p1*) = 0.8 abs…. 25 bar (12 abs. … 363 PSI)
Temperature:
t = -50 °C … +220 °C (-58 °F … +430 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Axial movement: ±0.5 mm
* An integral stationary seat lock is not needed within the permissible low pressure range. For prolonged operation under vacuum it is necessary to arrange for quenching on the atmospheric side.
Materials
Seal face: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
Seat G16: Silicon carbide (Q1)
Recommended applications
- Pharmaceutical industry
- Power plant technology
- Pulp and paper industry
- Water and waste water technology
- Mining industry
- Food and beverage industry
- Sugar industry
- Dirty, CZPT and solids containing media
- Thick juice (70 … 75 % sugar content)
- Raw sludge, sewage slurries
- Raw sludge pumps
- Thick juice pumps
- Conveying and bottling of dairy products
| ITEM | PART NO. TO DIN 24250 |
DESCRIPTION |
| 1.1 | 472/473 | Seal face |
| 1.2 | 485 | Drive collar |
| 1.3 | 412.2 | O-Ring |
| 1.4 | 412.1 | O-Ring |
| 1.5 | 477 | Spring |
| 1.6 | 904 | Set screw |
| 2 | 475 | Seat (G16) |
| 3 | 412.3 | O-Ring |
| d1 | d3 | d6 | d7 | d8 | dm | l1K | l3 | l5 | l6 | l7 | l18 | l19 | l111) | l122) | l13 | l38 | l39 | f | mx |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 32 | 27 | 33 | 3 | 26.0 | 37.5 | 30.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 39.5 | 35.5 | 28.5 | 17.0 | 9.0 | 3.0 | M4 |
| 20 | 34 | 29 | 35 | 3 | 28.0 | 37.5 | 30.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 39.5 | 35.5 | 28.5 | 17.0 | 9.0 | 3.0 | M4 |
| 22 | 36 | 31 | 37 | 3 | 30.0 | 37.5 | 30.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 39.5 | 35.5 | 28.5 | 17.0 | 9.0 | 3.0 | M4 |
| 24 | 38 | 33 | 39 | 3 | 32.5 | 40.0 | 33.0 | 2.0 | 5 | 9 | 15.0 | 7.0 | 42.0 | 38.0 | 31.0 | 17.0 | 9.0 | 3.5 | M5 |
| 25 | 39 | 34 | 40 | 3 | 33.5 | 40.0 | 33.0 | 2.0 | 5 | 9 | 15.0 | 7.0 | 42.0 | 38.0 | 31.0 | 17.0 | 9.0 | 3.5 | M5 |
| 28 | 42 | 37 | 43 | 3 | 36.5 | 42.5 | 35.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 45.0 | 40.0 | 33.0 | 17.5 | 9.5 | 3.5 | M5 |
| 30 | 44 | 39 | 45 | 3 | 38.5 | 42.5 | 35.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 45.0 | 40.0 | 33.0 | 17.5 | 9.5 | 3.5 | M5 |
| 32 | 47 | 42 | 48 | 3 | 41.5 | 42.5 | 35.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 45.0 | 40.0 | 33.0 | 17.5 | 9.5 | 3.5 | M5 |
| 33 | 47 | 42 | 48 | 3 | 41.5 | 42.5 | 35.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 45.0 | 40.0 | 33.0 | 17.5 | 9.5 | 3.5 | M5 |
| 35 | 49 | 44 | 50 | 3 | 43.5 | 42.5 | 35.5 | 2.0 | 5 | 9 | 15.0 | 7.0 | 45.0 | 40.0 | 33.0 | 17.5 | 9.5 | 3.5 | M5 |
| 38 | 54 | 49 | 56 | 4 | 47.5 | 45.0 | 37.0 | 2.0 | 6 | 9 | 16.0 | 8.0 | 47.5 | 42.5 | 34.5 | 18.5 | 10.5 | 4.0 | M5 |
| 40 | 56 | 51 | 58 | 4 | 49.5 | 45.0 | 37.0 | 2.0 | 6 | 9 | 16.0 | 8.0 | 47.5 | 42.5 | 34.5 | 18.5 | 10.5 | 4.0 | M5 |
| 43 | 59 | 54 | 61 | 4 | 52.5 | 45.0 | 37.0 | 2.0 | 6 | 9 | 16.0 | 8.0 | 47.5 | 42.5 | 34.5 | 18.5 | 10.5 | 4.0 | M5 |
| 45 | 61 | 56 | 63 | 4 | 54.5 | 45.0 | 37.0 | 2.0 | 6 | 9 | 16.0 | 8.0 | 47.5 | 42.5 | 34.5 | 18.5 | 10.5 | 4.0 | M5 |
| 48 | 64 | 59 | 66 | 4 | 57.5 | 45.0 | 37.0 | 2.0 | 6 | 9 | 16.0 | 8.0 | 47.5 | 42.5 | 34.5 | 18.5 | 10.5 | 4.0 | M5 |
| 50 | 66 | 62 | 70 | 4 | 59.5 | 47.5 | 38.0 | 2.5 | 6 | 9 | 17.0 | 9.5 | 50.0 | 45.0 | 35.5 | 19.5 | 12.0 | 4.5 | M6 |
| 53 | 69 | 65 | 73 | 4 | 62.5 | 47.5 | 38.0 | 2.5 | 6 | 9 | 17.0 | 9.5 | 50.0 | 45.0 | 35.5 | 19.5 | 12.0 | 4.5 | M6 |
| 55 | 71 | 67 | 75 | 4 | 64.5 | 47.5 | 38.0 | 2.5 | 6 | 9 | 17.0 | 9.5 | 50.0 | 45.0 | 35.5 | 19.5 | 12.0 | 4.5 | M6 |
| 58 | 78 | 70 | 78 | 4 | 68.5 | 52.5 | 42.0 | 2.5 | 6 | 9 | 18.0 | 10.5 | 55.0 | 50.0 | 39.5 | 20.5 | 13.0 | 4.5 | M6 |
| 60 | 80 | 72 | 80 | 4 | 70.5 | 52.5 | 42.0 | 2.5 | 6 | 9 | 18.0 | 10.5 | 55.0 | 50.0 | 39.5 | 20.5 | 13.0 | 4.5 | M6 |
| 63 | 83 | 75 | 83 | 4 | 73.5 | 52.5 | 42.0 | 2.5 | 6 | 9 | 18.0 | 10.5 | 55.0 | 50.0 | 39.5 | 20.5 | 13.0 | 4.5 | M6 |
| 65 | 85 | 77 | 85 | 4 | 75.5 | 52.5 | 42.0 | 2.5 | 6 | 9 | 18.0 | 10.5 | 55.0 | 50.0 | 39.5 | 20.5 | 13.0 | 4.5 | M6 |
| 68 | 88 | 81 | 90 | 4 | 78.5 | 52.5 | 41.5 | 2.5 | 7 | 9 | 18.5 | 11.0 | 55.0 | 50.0 | 39.0 | 21.0 | 13.5 | 4.5 | M6 |
| 70 | 90 | 83 | 92 | 4 | 80.5 | 60.0 | 48.5 | 2.5 | 7 | 9 | 19.0 | 11.5 | 62.5 | 57.5 | 46.0 | 21.5 | 14.0 | 5.0 | M6 |
| 75 | 99 | 88 | 97 | 4 | 89.0 | 60.0 | 48.5 | 2.5 | 7 | 9 | 19.0 | 11.5 | 62.5 | 57.5 | 46.0 | 21.5 | 14.0 | 5.5 | M8 |
| 80 | 104 | 95 | 105 | 4 | 94.0 | 60.0 | 48.5 | 3.0 | 7 | 9 | 19.0 | 11.5 | 62.5 | 57.5 | 46.0 | 21.5 | 14.0 | 5.5 | M8 |
| 85 | 109 | 100 | 110 | 4 | 99.0 | 60.0 | 48.5 | 3.0 | 7 | 9 | 19.0 | 11.5 | 62.5 | 57.5 | 46.0 | 21.5 | 14.0 | 5.5 | M8 |
| 90 | 114 | 105 | 115 | 4 | 104.0 | 65.0 | 52.0 | 3.0 | 7 | 9 | 20.5 | 13.0 | 67.5 | 62.5 | 49.5 | 23.0 | 15.5 | 5.5 | M8 |
| 95 | 119 | 110 | 120 | 4 | 109.0 | 65.0 | 52.0 | 3.0 | 7 | 9 | 20.5 | 13.0 | 67.5 | 62.5 | 49.5 | 23.0 | 15.5 | 5.5 | M8 |
| 100 | 124 | 115 | 125 | 4 | 114.0 | 65.0 | 52.0 | 3.0 | 7 | 9 | 20.5 | 13.0 | 67.5 | 62.5 | 49.5 | 23.0 | 15.5 | 5.5 | M8 |
Product Photos:
HJ92N
HJ977GN
RisckyLi
Website: http://akman2006
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| Structure: | Single End |
|---|---|
| Pressure: | High Pressure Mechanical Seals |
| Speed: | High-Speed Mechanical Seal |
| Temperature: | High Temperature Mechanical Seal |
| Standard: | Standard |
| Balance: | Unbalanced |
| Customization: |
Available
| Customized Request |
|---|
Can screw jacks be integrated with advanced monitoring and feedback systems?
Yes, screw jacks can be integrated with advanced monitoring and feedback systems to enhance their functionality, control, and safety. The integration of monitoring and feedback systems allows for real-time data acquisition, analysis, and precise control over the operation of screw jacks. Here’s how screw jacks can be integrated with advanced monitoring and feedback systems:
- Sensors and Load Cells: Sensors and load cells can be installed in screw jacks to measure parameters such as force, torque, displacement, or position. These sensors provide real-time feedback on the performance and condition of the screw jack, allowing for precise control and monitoring of the applied load or position.
- Position Encoders: Position encoders can be used to measure the position and movement of the screw jack accurately. By integrating position encoders, the exact position of the screw jack can be monitored and controlled, enabling precise positioning and automation in various applications.
- Control Systems: Advanced control systems, such as programmable logic controllers (PLCs) or computer numerical control (CNC) systems, can be connected to screw jacks. These control systems receive data from the sensors and load cells and use algorithms to calculate the required input commands for the screw jacks. By integrating control systems, precise and automated control over the screw jacks can be achieved.
- Human-Machine Interface (HMI): HMIs can be used to provide operators with a user-friendly interface to monitor and control the screw jacks. Through an HMI, operators can visualize real-time data, set parameters, and make adjustments as needed. This enhances the ease of operation and allows for efficient monitoring and control of the screw jacks.
- Data Logging and Analysis: Integration with advanced monitoring and feedback systems enables the collection and logging of data from the screw jacks. This data can be analyzed to identify patterns, trends, or anomalies, providing insights into the performance, efficiency, and maintenance requirements of the screw jacks. Data analysis helps optimize the operation, predict failures, and schedule maintenance tasks proactively.
- Safety Systems: Advanced monitoring and feedback systems can contribute to the safety of screw jack operations. By integrating safety features such as limit switches, emergency stop buttons, or overload protection systems, potential risks or malfunctions can be detected and appropriate actions can be taken to prevent accidents or damage.
By integrating screw jacks with advanced monitoring and feedback systems, precise control, automation, data-driven decision-making, and enhanced safety can be achieved. This integration is particularly beneficial in applications where accuracy, repeatability, and real-time control are critical, such as in industrial automation, robotics, material handling, and assembly processes.
How do screw jacks ensure smooth and controlled linear movement of loads?
Screw jacks are designed to ensure smooth and controlled linear movement of loads. They employ several mechanisms and features that contribute to this capability. Here are some ways in which screw jacks achieve smooth and controlled linear movement:
- Threaded Screw and Nut Mechanism: Screw jacks consist of a threaded screw and a matching nut. The screw is rotated using a handle or a motor, causing it to move linearly through the nut. The thread geometry allows for smooth and controlled movement as the screw advances or retracts. The precision of the screw thread ensures that the load moves linearly without jerks or sudden changes in speed.
- Low Friction and High Efficiency: Screw jacks are designed to minimize friction and maximize efficiency. The components of the screw jack, such as the screw, nut, and bearing surfaces, are manufactured with smooth and precise finishes. This reduces frictional forces and minimizes energy losses during operation. The low friction characteristics enable smooth movement and ensure that a significant portion of the input force is translated into lifting or lowering the load.
- Load Distribution and Stability: Screw jacks are designed to distribute the load evenly across the screw thread and nut. This ensures that the load is supported and guided in a stable manner during linear movement. The load-bearing components of the screw jack, such as the housing and base, are constructed to provide adequate strength and rigidity, minimizing deflection and maintaining stability throughout the lifting or lowering process.
- Anti-Backlash Mechanisms: Backlash refers to the slight axial movement or play that can occur between the screw and the nut in a screw jack. To minimize backlash and ensure precise control, screw jacks often incorporate anti-backlash mechanisms. These mechanisms, such as preloading springs or adjustable backlash nuts, reduce or eliminate any free movement, allowing for more accurate and controlled linear motion of the load.
- Overload Protection: Screw jacks may include overload protection features to prevent damage or failure in the event of excessive loads or unexpected conditions. These features can include mechanical stops, shear pins, or overload clutches that disengage or limit the load-carrying capacity of the screw jack when predetermined limits are exceeded. Overload protection mechanisms contribute to the safe and controlled movement of loads.
By employing a threaded screw and nut mechanism, minimizing friction, ensuring load distribution and stability, incorporating anti-backlash mechanisms, and providing overload protection, screw jacks enable smooth and controlled linear movement of loads. These features make screw jacks suitable for a wide range of applications where precise positioning, lifting, or lowering with controlled speed and stability is required.
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.
editor by CX 2024-03-30