Steel Prop
BRAND: Promisteel
STANDARD: Q235 Carbon Steel
SURFACE TREATMENT: galvanized, painted, or powder-coated surfaces
ADJUSTABLE HEIGHT: 1.6m to 5.0m (customizable)
Terms of Payment: L/C, T/T
Promisteel's adjustable steel prop is a support device widely used for supporting the vertical direction structure that adapts to the vertical support of the slab formwork of any shape. It is simple and flexible, and the installation is convenient, being economical and practical. The steel prop takes up little space and is easy to store and transport. is a strong, dependable, and reusable support tool designed for vertical load-bearing applications in construction.
Specification

From the above picture. There are 3 different types of shoring jack props. Middle East-type acrow prop, Italian-type acrow prop, and Spanish-type acrow prop.
|
Middle East Type Prop |
||||
|
Adjustable Height |
Inner Tube OD |
Outer Tube OD |
Thickness |
Surface Treatment |
|
1800-3200 |
48 |
60 |
1.8/2.0/2.2/2.5/3.0 |
Powder-Coated/ Electric galvanized/Painted |
|
2000-3500 |
48 |
60 |
1.8/2.0/2.2/2.5/3.0 |
|
|
2200-4000 |
48 |
60 |
1.8/2.0/2.2/2.5/3.0 |
|
|
2800-5000 |
48 |
60 |
1.8/2.0/2.2/2.5/3.0 |
|
|
Italian Type Prop |
||||
|
Adjustable Height |
Inner Tube OD |
Outer Tube OD |
Thickness |
Powder-Coated/ Electric galvanized/Painted |
|
1600-2900 |
48 |
56 |
1.6/1.8/2.0/2.2 |
|
|
1800-3200 |
48 |
56 |
1.6/1.8/2.0/2.2 |
|
|
2000-3600 |
48 |
56 |
1.6/1.8/2.0/2.2 |
|
|
2200-4000 |
48 |
56 |
1.6/1.8/2.0/2.2 |
|
|
Spanish Type Prop |
||||
|
Adjustable Height |
Inner Tube OD |
Outer Tube OD |
Thickness |
Surface Treatment |
|
1600-2900 |
40 |
48 |
1.6/1.8/2.0/2.2 |
Powder-Coated/ Electric galvanized/Painted |
|
1800-3200 |
40 |
48 |
1.6/1.8/2.0/2.2 |
|
|
2000-3500 |
40 |
48 |
1.6/1.8/2.0/2.2 |
|
|
2200-4000 |
40 |
48 |
1.6/1.8/2.0/2.2 |
|

Base Plate
The popular types for base plate and top plate are flower plate and square plate. Common sizes are 120*120mm, 150*150mm, and 140*140mm with a thickness of 3-8mm.
Screw Part
There are two kinds of threading parts. One has a welding joint and the other one doesn't have a welding joint, which is screwing directly on the outside tube.


Nut Coupler
The wing nut coupler is frequently used in heavy-duty steel props, while the cup nut is common in light-duty steel props. Usually the cup nut steel props have the tube size 48/56mm.
Smooth welding lines
We have 5 auto welding lines in production; all props are welded with solid and smooth welding lines. During the in-line production process, our QC will detect the lack of welding.

Key features
Material Quality
Made from high-strength Q235 steel, ensuring durability and load-bearing reliability.
adjustability
The easy screw-threaded design allows height adjustment to suit various structural needs.
Load Capacity
High load-bearing strength suitable for slab formwork and vertical shoring.
Corrosion Resistance
Available with pre-galvanized or hot-dip galvanized finish for superior protection in harsh environments.
Safety & Locking
Secure locking pins and a nut system ensure safety during setup and operation.
customizable Design
Sizes and thickness can be tailored to meet specific project requirements.
Packaging & Logistics
Packaging: Standard export packing; steel props are bundled with steel straps or packed on pallets.
Minimum Order Quantity (MOQ): 20 tons
Logistics: Reliable shipping solutions with fast delivery for global customers.




Quality Assurance & Certifications
✅ Raw Material Control-Premium Q235 steel tested for strength and durability
✅ Precision Manufacturing-Advanced production lines with strict dimensional control
✅ Certified Testing-Third-party inspection (e.g., SGS) to meet industry standards
✅ Eco-Friendly Production-Manufactured in compliance with environmental regulations
Why Choose Promisteel's Steel Prop?
High-quality steel tubes ensure its high loading capacity.
Various finishes are available, such as hot-dipped galvanization, electric galvanization, powder coating, and painting.
The special design prevents the operator from hurting his hands between the inner and outer tubes.
The inner tube, pin, and adjustable nut are designed to be protected against unintentional disengagement.
With the same size of the plate and base plate, the prop heads (fork heads) are easy to insert in the inner tube and outer tube.
The strong pallets ensure the transportation is easy and safe.
Applications
Building construction-Slab support and temporary shoring
Infrastructure-bridge, tunnel, and highway projects
Renovation-Temporary structural support


FAQ
Q: How do I adjust the height of Italian-type steel props?
A: Italian-type steel props are designed with an adjustable thread and slot hole, allowing you to change their height to suit your construction needs easily.
Q: What types of construction projects are Italian-type steel props suitable for?
A: Italian-type steel props are suitable for many projects, including supporting concrete formwork, beams, slabs, and other vertical loads in the construction industry.
Q: How can I maintain and extend the lifespan of Italian-type steel props?
A: Regular maintenance, such as cleaning and lubricating the adjustable parts, can help extend the lifespan of Italian-type steel props. Proper storage and handling are also essential.
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