Why is Adjustable Scaffolding Steel Props Better?

What is Scaffolding Prop

Scaffolding props, also known as adjustable props or shoring props, formwork props, construction props, shuttering jacks, building props, post shores, adjustable steel props, shoring posts, telescopic props, adjustable scaffolding jacks, shuttering jacks, shuttering props, etc., are temporary vertical supports used in construction to support structures, such as formwork, scaffolding, slabs, foundations.

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In construction and engineering, the adjustable scaffolding props temporarily hold up weight and ensure stability during construction and renovation.

For example, when adjustable scaffolding props are used in formwork, they support concrete formwork structures (like slabs, beams, walls, and columns) while concrete is pouring and forming; they can not be removed before the concrete is sufficiently cured and strong.

Key Components of Scaffolding Props

1. Prop Outer Tube: This is the big tube of the scaffolding props, usually with threaded parts(welded or threaded directly).
2. Prop Inner Tube: Smaller tube slides inside of the outer tube, typically with holes on for fixing a prop height in construction.
3. Prop Sleeves: Props sleeves are part of the prop outer tube but with screw threading
4. Prop Nuts(Cups): Cast or forged prop accessories with a handle assembled on the prop sleeves and used to turn up and down on the screw sleeve that adjusts the scaffold props slightly. 
5. Prop Base Plate: Flat plate at the bottom of the scaffolding prop. Typically welded on the outer tube of the props.
6. Prop Head Plate: Top part of the scaffolding props. The head part of the props can be a flat plate (top plate), U head or fork head, cross head, etc.
7. Prop Lock Pins: G Pins or Straight Pins of the Props. Used to be inserted into the inner tube holes of the Scaffolding Props that fix the scaffolding props at a required height in construction and shoring.

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Applications of Scaffolding Props

1. Formwork Support:
   • Scaffolding props are commonly used to support formwork during concrete pouring. They hold the moulds or forms in place until the concrete has set and gained enough strength to support itself.
2. Shoring:
   • Props are used for shoring purposes to support existing structures temporarily. They are often employed when repairs or renovations are needed on walls, ceilings, or floors that require additional support to prevent collapse during the construction work.
3. Scaffolding Systems:
   • In scaffolding, props are used to support working platforms or walkways, ensuring the safety and stability of workers on elevated surfaces.
4. Bridge Construction:
   • Scaffolding props are often used for supporting beams and deck forms in bridge construction.
5. Underpinning and Foundation Work:
   • Props can temporarily support structures during foundation repairs or excavating around existing foundations.

Types of Scaffolding Props

There are several types of scaffolding props designed to meet various loading bearing and height adjustment requirements:

Adjustable Steel Props

Adjustable steel props are the most common scaffolding props made of high-strength steel sections and structures of tubes, plates, nuts, pins, etc. They are durable, strong, and versatile.

Features: 

1. Take high load
2. Telescopic for versatile construction
3. Durable with a long lifespan
4. Cost Effective
5. Easy to transport

Recommended Read: Adjustable Steel Props

Single Piece Steel Props

1. These props are fixed in height and can not be adjusted
2. Typical used for low load application and in situations where height variations are not a requirement

Adjustable Aluminium Props

1. Adjustable scaffolding props made of aluminium profiles.
2. Lightweight props with large outer and inner tubes. These telescopic props are used as an alternative to adjustable steel props, designed for applications that need to reduce the weight of the adjustable prop while keeping high bearing for construction. (Peri and Doka Props)
3. Easy handling
4. Easy assembly and dismantle

Push Pull Props

An adjustable scaffolding prop designed to support structures at any angle is typically used for wall formwork systems to support the vertical wall formworks from the side. There are double and single push-pull props for construction. Double push-pull support the wall formwork panels simultaneously at higher and lower positions.

Recommended Read: Push Pull Props

Trench Struts

A type of adjustable scaffolding prop designed to do horizontal support during trenching and construction with a clawed-shaped base and head plates, which is better for trench work.

Recommended Read: Trench Struts 

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Steel vs. Aluminium Scaffolding Props

Steel or aluminium props are scaffolding prop types divided according to the raw material used. Steel props are made of steel scaffold tubes, called telescopic steel props, adjustable steel props, etc. Aluminium props are made of aluminium tubes.

Steel scaffolding props are the most popular support jacks for the construction, shoring and shuttering. It can take more weight and load in the support, while the cost of steel props is much cheaper than aluminium props. That is why steel props nowadays are the best scaffolding props for construction.

Aluminium props are light in weight and easy to handle. Nowadays, formwork companies like Doka and Peri use aluminium props in some of their projects.
Steel is easily rusty if it is not protected from the surface. Thus, the steel props must be galvanized or painted for anti-corrosion.

Painted steel scaffolding props are finished with different colours (red, yellow, blue, green, etc.) of the painting on the surface for protection; it can last 1-5 years without rust if regular maintenance is done.

Galvanized steel props include three types:

1.  Hot-dip galvanized steel props
2. E-galvanized steel props
3. Pre-galvanized steel props.

Among them, hot dip galvanized is the most durable type, lasting 10-25 years.

E-galvanizing scaffold prop is also called zinc-plated or cold-galvanizing props.  It has less zinc thickness than HDG props and can last 2-5 years.

Pre-galvanized steel props are also called GI steel props. It is made of premier galvanized steel scaffolding pipes. The welding line of the GI props needs extra paint for manufacturing protection. Pre-galvanizing can last 2-5 years as well.

Considering the cost and price, hot dip galvanized is the most expensive, while zinc-plated and pre-galvanized steel props are much cheaper.

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Acrow Props and Scaffolding Props

Acrow prop is also called acro jacks or acrows. It is a unique adjustable steel scaffolding prop popular in the UK and Europe. (“Acrow” is the name of Mr A. Acrowe, who created the acrow prop for construction.)

Sizes of the acrow props are 0#, 1#,2#,3#,4#. The following is the technical data for each size of acrow prop.

No.Acrow Prop SizesAdj RangeMax HeightBearing Weight
At Max Height1Acrow Prop Size 01.04m – 1.83m1.83m60 KN2Acrow Prop Size 11.75m – 3.12m3.12m38 KN3Acrow Prop Size 21.98m – 3.35m3.35m36 KN4Acrow Prop Size 32.59m -3.96m3.96m35 KN5Acrow Prop Size 43.20m – 4.86m4.86m26 KN

Recommended to Read: Acrow Props 

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Propping System and Scaffolding Props

Scaffolding props are a critical component of the propping systems in construction, formwork and shuttering.

In the propping system, adjustable scaffolding props are used together with components of formwork beams (including main beam and secondary beams), film face plywood, prop tripod, fixed U head and forkhead and formwork clips, prop bracing and strongboy, etc, to form the construction propping and shoring.

More than adjustable scaffolding props, scaffold systems and frames are often used in the propping system. The most used scaffolding for construction vertical support, Cuplock Scaffolding, Ringlock Scaffolding, Kwikstage Scaffolding, Frame Scaffolding, and Shoring Frames, are used a lot for the vertical support of the construction propping system.

Why are adjustable props more commonly used in the propping system than scaffolding?

Features of Adjustable scaffolding props

1. Adjustable and Versatile for Different Construction Heights
2. Offer extra support any time and any place when needed
3. Compatible with all scaffolding and formwork system
4. Quick and Easy Assembly
5. Move quickly without complicated dismantle
6. Take more load than regular scaffolding

Adjustable Props Better Than Scaffolding in Construction Propping

1. Easy Setting Up: When scaffolding is used for vertical propping in formwork and construction, they must assemble essential scaffold parts of scaffold standards, ledgers, braces, etc.  Adjustable propping is used singly in support.
2. Easy Adjust to Different Heights: When using adjustable props, you need to lock the inner tube at a height and then slightly adjust by turning up and down the prop nut to reach the exact construction height.  Scaffolding is not as simple like this, you need to erect or dismantle extra scaffold standards, ledgers for different construction heights.
3. Easy to Move: Adjustable props are easy to move to any place wanted in the construction propping. In comparison, moving scaffolding must be dismantled first or at least move the whole scaffolding frame, which takes more time and is more complex.

For the above reasons and features, adjustable props are better used in construction propping systems.

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How to Choose the Right Scaffolding Props?

Choosing the right scaffolding props for your construction shoring by two steps:

1. Check the height range of your construction support; what is the minimum height, and what is the maximum height
2. How much weight(load capacity) do the scaffolding props need to take in propping?

For example, if you want a support construction at a max height of 4m. You can select 2.2-4m scaffold props. If you support concrete with a max height of 5.5m, you can choose 3-5.5m adjustable props.

You can also choose light-duty, medium-duty and heavy-duty props according to the weight-bearing requirement of your propping and construction.

Light Duty Adjustable Scaffolding Jacks Specifications

Inner TubeOD48.3×1.4-1.7mmOD48.3×1.8-2.0mmOD48.3×2.0-2.3mmOuter TubeOD60.3×1.4-1.7mmOD60.3×1.8-2.0mmOD60.3×2.0-2.3mm

Medium Duty Adjustable Scaffolding Jacks Specifications

Inner TubeOD48.3×2.4mmOD48.3×2.5mmOD48.3×2.7mmOuter TubeOD60.3×2.4mmOD60.3×2.5mmOD60.3×2.7mm

Heavy Duty Adjustable Scaffold Jacks Specifications

Inner TubeOD48.3×2.8-4.0mmOD60x3.0-4.0mmOD76x3.0-4.0mmOuter TubeOD60.3×2.8-4.0mmOD76x3.0-4.0mmOD80x3.0-4.0mm

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Formwork Types and Scaffold Props

Formwork is a system that creates temporary moulds in different shapes for concrete pouring. After the concrete, the construction slabs, columns, walls, and beams are formed.

Scaffolding props can work with all types of formwork systems. Include Steel Formwork, Aluminum Formwork, Plywood Formwork, Steel- Ply Formwork, and Plastic Formwork.

In construction, they work for different functions of formworks and shuttering, like Slab Shuttering, Beam Shuttering, Column Shuttering, Wall Shuttering, etc.

For more Adjustable Scaffolding Steel Propsinformation, please contact us. We will provide professional answers.

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FAQs

What are The Diameter of Scaffolding Props?

1. OD40mm Inner Tube, OD 49mm Outer Tube
2. OD48mm Inner Tube, OD56mm Outer Tube
3. OD48mm Inner Tube, OD60mm Outer Tube
4. OD59mm Inner Tube, OD71mm Outer Tube
5. OD63mm Inner Tube, OD76mm Outer Tube
6. OD71mm Inner Tube, OD83mm Outer Tube
7. OD77mm Inner Tube, OD89mm Outer Tube
8. OD87mm Inner Tube, OD99mm Outer Tube

How Do You Brace Scaffolding Props?

If you want bracing scaffolding props in construction to get the more stable and strong propping system, Wellmade can design the scaffolding props with lock pins. See the following bracing props in construction.

How to Make Scaffolding Props Stable?

If you want to make scaffolding props more stable and stable in standing, You can put a tripod to hold the scaffold props.

Do you manufacture scaffolding props with fork head, U head and cross head?

Yes. The top head of the scafolding props can be designed to U head, fork head and cross head for your needs.

What are the top and bottom plate sizes?

The most popular sizes for top and bottom plates are 120x120mm, 125x125mm, 100x100mm, 130x130mm, 140x140mm, 150x150mm, and 152x152mm. The thickness of the plates is 4mm to 10mm.

Are the top plate and bottom plates the same size?

Yes. Mostly, the top and bottom plates are the same size. Customized different sizes are available as well.

Why do the top plates of the props have central holes?

During construction, central holes on the top prop plates connect to the U head, fork head, and cross head.  You need to insert the spigots inside the holes to form the propping system for formwork shoring and support.

How many types of jack nuts are the scaffolding props?

There are three prop nuts for adjustable props:  cast iron, cast steel and forged. Among them, cast iron is the most common type, cheap and has significant output.

Cast steel and forged prop nuts are more expensive and need machinery inner screw threading before use with the props.

How many types of prop lock pins for the telescopic props?

The telescopic props have two lock pins: G Pin and straight pins.

Recommended Read: G Pins

What are the steel grades for the adjustable steel props

Adjustable steel props include three different steel grades. S235, S355 and 450 Steel.

S235 is the standard grade.

S355 is the higher steel grade. In comparison, 450 steel is the highest grade for the scaffold steel props.

What is the safety factor of the adjustable scaffolding props?

According to the Canadian CAN/CSA S269.2-16  and the USA ANSI/SSFI SH300- standards, the scaffolding prop safety factor is 3:1.

What are the popular heights of the adjustable scaffolding props?

Popular sizes of adjustable scaffolding props include 1.6-3m,1.8-3.2m, 2-3.5m, 2-3.6m, 2.2-3.9m, 2.5-4.0m etc. We can design for you free of the prop sizes as well.

How much weight can the light-duty scaffold props take?

According to the EN standard, there are five classes of adjustable steel props: Class A to Class E. Light duty scaffold props are Class A scaffolding props, including sizes of A25 to A40. It can take a load up to 20.4 KN.

Recommend to download: EN Standards.

How much weight can the medium-duty scaffold props take?

Class B of the EN standard steel props are the medium-duty scaffold props. Include sizes of B25 to B55. It can take a load of up to 27.2KN.

Recommend to download: EN Standards.

How much weight can the heavy-duty scaffold props take?

Class C to Class E are the heavy-duty scaffolding steel props. It can take a load up to 51 KN.

Recommend to download: EN Standards.

Conclusion

Wellmade is a global leader in adjustable scaffolding props. Offer quality assurances, competitive prices, and excellent support.

Heavy-duty steel props, also known as adjustable steel props or shoring props, are commonly used in construction and temporary support applications. These props are designed to provide vertical support and structural stability in various scenarios. In this news, I will discuss the features and benefits of heavy-duty steel props.

Features of heavy duty Steel Props:

1. Robust Construction:

Heavy-duty steel props are made from high-quality steel, ensuring their strength, durability, and load-bearing capacity. They are designed to withstand heavy loads and provide reliable support in demanding construction environments.

2. Adjustable Height:

Steel props are typically telescopic, allowing for easy adjustment of the height to accommodate different requirements. This adjustability is achieved through an internal screw mechanism that allows the prop to be extended or retracted as needed, providing flexibility in various applications.

3. Collapsible Design:

Steel props are collapsible, which means they can be folded down or disassembled for convenient storage and transportation. This feature allows for efficient use of space when not in use and makes them easy to transport to different job sites.

4. Safety Features:

Heavy-duty steel props often come with safety features such as locking pins or clips to secure the extended length and prevent accidental collapse. These features provide added safety for workers and ensure stability during use.

5. Load-Bearing Capacity:

Steel props are designed to support heavy loads, making them suitable for a wide range of applications. The load-bearing capacity varies depending on the specific model and size, allowing for customization based on project requirements.

Benefits of Heavy Duty Steel Props:

1. Strong Structural Support:

Heavy-duty steel props provide robust and reliable support for various construction applications. They can withstand heavy loads, ensuring the stability and integrity of temporary structures, formwork, or scaffolding systems.

2. Adjustable and Versatile:

The adjustable height feature of steel props allows for versatility in supporting different structures and formwork systems. They can be easily extended or retracted to achieve the desired height, accommodating varying project requirements.

3. Cost-Effective:

Steel props are a cost-effective solution for temporary support applications. They are generally more affordable than permanent structural support systems, offering a cost-saving option for construction projects that require temporary shoring or propping.

4. Easy Installation and Operation:

Shoring props are relatively easy to install and operate, making them suitable for quick and efficient deployment. Their collapsible design and adjustable height feature facilitate ease of handling and setup, reducing labor and time required for installation.

5. Enhanced Worker Safety:

Heavy-duty steel props contribute to improved worker safety on construction sites. They provide stable support for formwork, scaffolding, or temporary structures, minimizing the risk of collapses or accidents. Safety features such as locking pins or clips further enhance worker protection during use.

6. Reusability and Longevity:

Steel props are designed for durability and can be reused multiple times, making them a sustainable and cost-effective solution. With proper maintenance and care, they can withstand the rigors of construction environments, providing long-term value for multiple projects.

7. Adaptability to Various Environments:

Heavy-duty steel props are suitable for use in different environments and conditions. They can be used in applications ranging from residential construction to large-scale infrastructure projects. Their strength and adaptability make them versatile for a wide range of construction scenarios.

8. Complementary to Other Construction Systems:

Steel props can be used in conjunction with other construction systems, such as formwork, scaffolding, or temporary supports. Their compatibility with various systems allows for seamless integration and efficient construction processes.

Conclusion

In summary, heavy-duty steel props offer robust support and structural stability in construction applications. Their adjustable height, collapsible design, safety features, load-bearing capacity, and other advantages make them a versatile and cost-effective solution. From temporary shoring to formwork support, steel props provide the necessary strength and reliability to ensure successful construction projects.

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