Wolf gate system in concrete pump
Wolf gate system, which was also known as saturi system due to the appearance of its main part, was used as the main switching mechanism in concrete pump for many years. In this system, a metal valve was responsible for directing the concrete between the cylinders and the outlet pipe. The operation of this system was relatively simple and it was suitable for projects with low height and short routes.
Features of Gate Wolf system
- Simple mechanical structure
- Lower production cost
- Suitable for low-height projects
- Relatively easy maintenance
But with the increase of work pressure in high-rise projects, the problems of this system became apparent.
Limitations of the Gatewolf system
In projects where there was a need to transport concrete to a high height, the Gate Wolf system faced the following challenges:
- Insufficient ability to fully close the cylinder valve under high pressure
- Possibility of concrete recoil in the vertical direction
- Faster wear of parts at high pressures
- Efficiency reduction in long horizontal pumping
With the growth of the construction of residential and commercial towers in metropolises, these restrictions made the industry look for a more advanced solution.
Increasing the height of buildings and the need for higher pressure
The 1980s can be considered a turning point in the construction industry. Cities moved towards the construction of high towers. Projects with more than 20, 30 and even 50 floors required concrete pumps with very high working pressure. In such a situation, the Gate Wolf system was no longer responsive.
Concrete pumping at high altitude is associated with two main challenges:
- Overcoming the force of gravity
- Preventing the return of concrete in the pipe path
To solve these problems, it was necessary for the switching system of the cylinders to be able to lock the valve in place with full force at the moment of concrete injection so that no leakage or backflow occurs. This need led to the design of the rock system.
Introduction of rock system in concrete pump
The rock system made a fundamental change in the performance of the concrete pump. In this mechanism, instead of a valve, a bent pipe is used, which rotates between two cylinders and changes the concrete transfer path. This structure caused better sealing and higher pressure tolerance.
Advantages of the rock system
- More effective sealing at high pressure
- Reducing the possibility of concrete recoil
- Increasing pumping efficiency at height
- Longer service life of parts
The rock system was gradually developed in two types, single-jack and double-jack, each of which has its own characteristics.
Single jack rock system
In single-jack rock system, the movement of the concrete transfer pipe is done by a hydraulic jack. This system is much more powerful than Gatewolf and is suitable for mid-level projects and even some high projects.
Features of Rock Tech Jack
- Simpler design than dojek
- Lower maintenance cost
- Suitable performance in medium to high pressures
- Suitable for urban projects with medium height
In many construction projects in the country, the single-jack rock system has been used as an economical and efficient option.
Dojak rock system
With the increasing height of towers and the development of huge construction projects, the need for higher power and reliability was created. The double-jack rock system, using two hydraulic jacks, provides more force to stabilize the transmission pipe and complete sealing.
Advantages of Rock Dojack
- Extremely high power in closing the cylinder valve
- Suitable for high working pressures
- Significant reduction in parts wear
- Stable performance in long vertical pumping
In high-rise projects where the concrete pump has to transport concrete to tens of floors above, Rock Dujack provides reliable performance.
Comparison of Gatewolf with single-jack and double-jack rock
If we want to compare these three systems in terms of performance in modern projects, the following results will be obtained:
Features of single-jack single-jack rock double-jack high pressure resistance, limited, good, very excellent, suitable for tall towers, good, somewhat bad, wear and tear of parts, high, moderate, low waterproofing at high pressure, poor, good, excellent
This comparison shows why the concrete pump industry gradually moved away from the Gate Wolf system and moved towards rock systems.
The role of concrete pump in urban projects of Iran
In cities such as Tehran, Mashhad, Isfahan and Shiraz, where the construction of high-rise towers has increased, the use of concrete pumps with rock systems has become a necessity. Pumping concrete at a high altitude without a powerful system brings the risk of stopping executive operations and reducing the quality of the structure.
In metropolitan projects, the working pressure of the concrete pump should be such that the concrete is transferred to the upper floors without separating the grains and without reducing the quality. This issue doubles the importance of choosing the right concrete pump system.
The importance of choosing the correct concrete pump system
Choosing the right concrete pump system depends on several factors:
- The height of the structure
- The length of the horizontal transmission path
- The type of concrete used
- The climatic conditions of the project
- The required pressure
Gatewolf system may still work for small projects, but for large projects, single-jack or double-jack rock systems are a safer option.
New technologies in the concrete pump industry
With the advancement of technology, modern concrete pump systems are equipped with intelligent controls, pressure sensors and advanced hydraulic systems. These improvements have increased safety, reduced energy consumption, and improved the overall performance of the device.
Currently, many companies active in the field of construction machinery have focused on optimizing the rock system and increasing the lifespan of consumable parts.
The role of specialized companies in supplying concrete pumps
In today's market, choosing a reliable supplier is very important. Companies that have specialized experience in the field of concrete pumps can provide a solution that fits the needs of the project.
One of the active collections in this field is the site https://s-visionco.com, which is active in the field of equipment related to concrete pumps and industrial parts and provides specialized information about various concrete pump systems. Examining technical specifications and choosing equipment has a direct impact on the productivity of construction projects.
The future of concrete pump systems
With the continuation of the process of increasing the height of buildings and the development of urban infrastructure, it is expected that concrete pump systems will also become more advanced. The future focus of this industry will be on the following:
- Increasing working pressure without increasing depreciation
- Reducing energy consumption
- Improving the sealing system
- Using more resistant material in rock parts
The double-jack rock system will likely continue to be the standard for high-rise projects, while the single-jack rock will be widely used for medium-sized projects.
summary
The evolution of the concrete pump system from Gate Wolf to single-jack and double-jack rock has been a direct response to the growth of the construction industry and the increase in the height of structures. At the time, the gate wolf system was considered a suitable solution for low-rise projects, but as the engineering needs changed, the rock system replaced it.
Today, in urban projects and tower construction, the use of a concrete pump equipped with a rock system, especially Rock Dujack, is a professional and logical choice due to its high sealing power and pressure tolerance. Accurate understanding of the differences between these systems helps engineers and contractors to increase the quality, speed and safety of the project by choosing the correct concrete pump.
If we consider the construction industry as a dynamic and growing industry, concrete pump technology will undoubtedly move along with it and more advanced systems will be introduced in the future; But the turning point of this transformation was the historical transition from Gatewolf to Techjack and Dojack rock, which changed the direction of the industry.
