China Steel Prop Manufacturers Suppliers Factory - Wholesale Steel Prop Made in China

Steel Prop Manufacturer for Formwork and Shoring

How to choose the right steel prop for your working height, load and order size? Our range includes light-duty models, heavy-duty supports, Acrow props, push-pull braces and other accessories like pin, nut...etc.

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How to Choose Your Prop?

Adjustable steel props consists of an inner tube, an outer tube and a height adjustment part. They provide temporary support below formwork or other structures. While a vertical slab support and a brace used to align wall formwork need different designs.

Light Duty Props

The light-duty props range includes 40/48 mm and 48/56 mm with inner/outer tube combinations, with several adjustment ranges.
Choose the type against the required load at the actual working height. Light duty steel props

Acrow Props

Acrow props are named as Size 0, size 1, size 2, size 3 or size 4. You can tell us the size number together with your required closed and extended lengths. Dimensions can be different between suppliers.

Heavy Duty Props

For projects that need a higher rated load, need choose heavy-duty configurations. The regular range includes 48/60 mm tube combinations and extended models up to 6.0 m. Longer supports need confirm the complete design, wall thickness and load data before choosing a prop type for a tall support projects. Heavy-duty Props specification

Push Pull Props

Formwork push pull props help align and brace wall or column formwork. Their end connections and adjustment swivel system are designed for a vertical floor support.
You need know the panel connection details, required length and design loads when requesting a quote. This helps us identify the correct brace and fixing arrangement.

Size 0 Acrow Props
Our Acrow props have many sizes, including Size 0 (the shortest), Size 1, Size 2, Size 3, and Size 4.
The adjustable range for Size 0 Acrow props spans from 1.05 meters to 1.8 meters.
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Size 1 Acrow Props
Size 1 Acrow Props are adjustable, open from 1.76 meters to 3.13 meters in length. The material is Q235 high quality steel, and the diameter is 48mm. They providing strength and stability to hold...
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Size 2 Acrow Props
Acrow Prop Size 2 is from 1.98 meters (collapsed) to 3.36 meters (fully extended).
Size 2 acrow props are primarily used as temporary supports for various tasks, such as ceiling support,...
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Size 3 Acrow Props
The acrow prop size 3 is from 2.59m to 3.97m, and it’s adjustable.
We offer acrow props in multiple specifications for temporary support needs in load-bearing walls, ceilings, and other...
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Size 4 Acrow Props
Our Acrow props including Size 0 (the shortest), Size 1, Size 2, Size 3, and Size 4, each size is for different construction needs.
We offer acrow props in multiple specifications for...
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Light Duty Shoring Post
Light Duty Shoring Post is used in light load temporary support. It is widely used for slab formwork, ceiling support, and residential buildings. The structure is simple but strong.
This...
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Medium Duty Shoring Post
Medium Duty Shoring Post can afford load capacity compared to light duty models. It is suitable for slab formwork, beam support, and general shoring applications. Also it can have height control...
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Heavy Duty Shoring Post
Heavy Duty Shoring Post is special for high load and demanding construction project. It is mainly used for heavy formwork, bridge construction, infrastructure projects, and high-rise buildings....
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U Head Shoring Post
U Head Shoring Post have a U-shaped head to support beams, timber, or steel girders. It is widely used in slab formwork and beam formwork systems.
The U Head Shoring Post can keep beams...
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L Head Shoring Post
L Head Shoring Post has an L-shaped top head for edge support and special formwork applications. It is suitable for wall formwork, edge beams, corner structures, and custom construction...
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Push Pull Props
Push Pull Props are adjustable steel props used for pushing and pulling formwork panels. One end connects to the structure, while the other fixes to the ground or slab. They are mainly applied in...
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Prop Nut
The Scaffolding Prop Nut With Handle is for height adjustments in scaffolding systems. This product can lock the steel props into place. The material is Q235 or QT450-10 high-strength steel or...
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Compare Sizes and Specifications

The table below shows selected dimensions from Irontrix’s published range.

Product range	Closed–extended length	Inner / outer tube diameter	Listed wall thickness options
Short light-duty	0.6–1.1 m	40 / 48 mm	1.5–2.5 mm
Short light-duty	0.8–1.4 m	40 / 48 mm	1.5–2.5 mm
Light-duty	1.6–2.9 m	40 / 48 mm	1.5–2.5 mm
Light-duty	1.8–3.2 m	40 / 48 mm	1.5–2.5 mm
Light-duty	2.0–3.6 m	48 / 56 mm	1.5–2.5 mm
Light-duty	2.2–4.0 m	48 / 56 mm	1.5–2.5 mm
Heavy-duty	2.0–3.5 m	48 / 60 mm	1.5–4.0 mm
Heavy-duty	3.0–5.0 m	48 / 60 mm	1.5–4.0 mm
Extended heavy-duty	3.5–6.0 m	48 / 60 mm	1.5–4.0 mm

For complete formwork props specifications, include the steel grade, individual tube thicknesses, plate size, pin diameter, thread details and finish. If you are matching an existing product, need discuss with our engineer for specifications. Contact Engineer

Check Capacity at Your Working Height

The load carrying capacity of steel props depends on the model and how long it is extended. A support may carry less load near full extension than at a shorter height.

For example, if your required support height is 3.2 m, check the permitted load at 3.2 m. A rating shown only for 2.0 m doesn’t answer the question.

Information need check	What it tells you
Exact model and size	Whether the data matches the product being supplied
Working height	Which part of the load table applies
Working load	The allowed load under the stated conditions
Installation conditions	Required restraint, orientation and support details

A maximum test load is not a permitted working load. Ask for the model-specific data and let your project designer check the layout, supporting surface and loading.

The steel prop load capacity and weight guide explains the terms used in load tables.

Steel Prop Parts and Accessories

If you need to buy complete supports, replacement parts or components for assembly, please send your parts list with dimensions and quantities. We can review a parts-only enquiry or include matching accessories with your steel shoring props.

Prop Nuts and Cup Nuts
The prop nut turns on the threaded sleeve to make small height adjustments. Cup nuts and handled nuts have different shapes, so match the thread instead of see the appearance.You need to know thread diameter and pitch, nut height, handle design and quantity before place the order. Request prop nut and cup nut prices

Threaded Prop Sleeves
The sleeve provides the threaded section used by the adjustment nut. Its dimensions must match both the nut and the outer tube connection.

G-Pins and Straight Locking Pins
The locking pin locates the inner tube at the selected adjustment hole. Pin shape, diameter and usable length must match the prop design.Most have 12mm or 14mm. Enquire about replacement prop pins

Top Plates and Base Plates
The top and base plates form the bearing surfaces at each end of a support. Markets usually have square base and flower base. The plate dimensions need match the tube size. Include length, width, thickness, centre-hole size and fixing-hole positions.

Inner and Outer Tubes
The inner tube slides inside the outer tube to set the support length. You need consider :Tube diameter, wall thickness, length and hole positions.
For inner tubes, include the hole diameter and spacing. For outer tubes, include the sleeve connection and base details, and state whether the quotation should cover bare tubes or finished assemblies.

U-Heads for Props
A U-head provides a seat for a compatible H beam. When ordering U head steel props, confirm whether the head is welded to the prop or supplied as a removable attachment.
Send the beam width, required head depth, plate thickness and spigot or fixing dimensions. If your support system requires a threaded head instead, then you need a separate adjustable U-head jack range.

Four-Way Fork Heads
A four-way fork head locates compatible formwork beams at the top of the support. The head layout should match the beam arrangement and the connection below it.
You need also consider the size of H20 timber beams in the same enquiry so the head and beam dimensions can be compared together. Enquire about fork heads

Steel Prop Tripods
A tripod clamps around the support to help hold it upright during assembly. And the folding design also makes it easier to store.Common sizes include 600, 750 and 800 mm heights, with clamps for 48–60 mm prop tubes, mainly used to hold steel props upright during slab and beam formwork assembly.
Match the clamp to the outer tube diameter and confirm the leg dimensions and locking mechanism.

The Surface Treatment

The prop coating affects the appearance, corrosion protection and purchase price. Irontrix’s listed options include pre-galvanized material, electro-galvanizing, hot-dip galvanizing and powder coating.

01.

Pre-galvanized

Steel tubes are made from galvanized strip, then cut and welded into props. Exposed cut edges and welded areas receive local coating repair.

02.

Electro-galvanized

Fabricated steel parts are cleaned and placed in an electrolyte bath. An electric current deposits a thin layer of zinc on the surface.

03.

Hot-dip galvanized

Fabricated steel parts are degreased, pickled and fluxed, then dipped in molten zinc. After cooling, the coating and thread fit are checked.

04.

Powder-coated

Steel surfaces are cleaned and pretreated. Dry powder is sprayed onto the parts using an electrostatic charge, then cured in an oven to form a protective coating.

Related Products for Your Order

If you are buying steel props for construction alongside other formwork materials, the following ranges can be considered for a combined purchase.

H20 Timber Beams

H20 timber beams support the formwork panels above the steel props. They sit on suitable U-heads or fork heads and can be used as main and secondary beams.

The standard beam height is 200 mm, with an 80 mm flange width. Different lengths can match the formwork layout easier.

Item	Common Dimensions
Overall height	200 mm
Flange width	80 mm
Flange thickness	40 mm
Web thickness	27 mm
Beam lengths	1.8, 2.45, 2.65, 2.9, 3.3, 3.6, 3.9, 4.5, 4.9 and 5.9 m

Adjustable U-Head Jacks

Adjustable U-head jacks support timber or steel beams at the top of a compatible shoring system. Turning the nut raises or lowers the head to help set the formwork level.

The U-shaped plate provides a seat for the beam. Its opening must fit the beam arrangement, including any beams placed side by side.

Item	Common Size Options
Stem diameter	30, 32, 34, 38 or 48 mm
Listed jack lengths	400, 600, 750 or 900 mm
U-head width	Approximately 120–180 mm
Plate thickness	4–8 mm

Base Jacks and Screw Jacks

Base jacks support the bottom of Ringlock, Cuplock and frame scaffolding. The threaded stem allows adjustable height changes, while the flat plate transfers the load to a suitable supporting surface.

These are useful additions for buyers stocking both steel props and scaffold systems. They are separate components, not replacements for the welded bottom plate of a standard prop.

Item	Common Size Options
Stem diameter	30, 32, 34, 38 or 48 mm
Listed jack lengths	400, 450, 600, 750 or 900 mm
Base plate size	120 × 120, 150 × 150 or 200 × 200 mm
Plate thickness	4–8 mm

Ringlock and Cuplock Systems

Ringlock and Cuplock connect vertical standards with horizontal ledgers and diagonal braces. They form connected support bays, with suitable U-head jacks above and base jacks below.

Both systems offer several component lengths. This allows buyers to select the bay dimensions and vertical sections required by the support design.

Component	Ringlock Common Sizes	Cuplock Common Sizes
Standard lengths	0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 m	0.5, 1.0, 1.5, 2.0, 2.5 and 3.0 m
Ledger lengths	0.73, 1.09, 1.57, 2.07, 2.57 and 3.07 m	0.6, 0.9, 1.2, 1.5, 1.8 and 2.5 m
Common tube outside diameter	48.3 mm	48.3 mm
Common connection spacing on standards	500 mm	500 mm

Manufacturing and Inspection

Irontrix is a formwork props manufacturer based in Tianjin, China. Our published production process covers tube cutting, hole punching, threading, welding, finishing and assembly.

For buyers, the useful evidence is specific to the product being ordered. Agree the inspection requirements with the specification, including which dimensions and documents must be recorded.

Inspection area	Details to check
Tubes	Material identification, diameter and wall thickness
Plates and holes	Dimensions, hole positions and fit
Welds	Joint quality against the agreed requirements
Adjustment mechanism	Thread engagement, movement and pin fit
Finish	Surface condition and specified coating checks
Finished unit	Length, assembly and unit weight

If your purchase requires EN 1065 documentation, state this before ordering. Also for an OEM steel prop , please send your logo or requirements.

Packing and Container Loading

Packing should make the order easy to unload, count and store. Irontrix offers palletized and bundled packing, with steel strapping and protection beneath the straps where specified.

Confirm the following details with your quotation:

Number of units per bundle or pallet.

Package dimensions and gross weight.

Packing method for loose heads, tripods and spare parts.

Labels showing the model and quantity.

Handling access for the unloading equipment.

Loading photographs and the final packing list.

Frequently Asked Questions

Q: Are Telescopic Steel Props the Same as Adjustable Props?

A: The terms often describe the same type of support. Telescopic steel props use sliding inner and outer tubes, with a mechanism for setting and fine-adjusting the length.
Compare the actual specification rather than relying on the product name. Different designs may have different capacities, threads and head connections.

Q: How Do I Choose a Size?

A: Start with the required prop length after allowing for the heads, beams and other components in the support arrangement. Then check the permitted load at that length and the installation requirements.
The floor-to-floor height alone is not the required prop length. Send the support drawing if you are unsure which dimension to use.

Q: How Do I Find Out How to Use Steel Props?

A: Use the instructions for the exact model together with the project’s temporary support design. They should cover the supporting surface, pin and nut engagement, restraint, inspection and removal sequence.
Have trained personnel assemble and inspect the supports. Do not replace a model-specific procedure with a generic installation description.

Q: Can I Order Parts Without Complete Units?

A: Send a list of the parts, quantities and matching dimensions. We can review a separate component enquiry or include spare parts with a complete-unit order.

Q: Can I Combine Props and Accessories in One Shipment?

A: Yes, props and compatible accessories can be planned as a mixed order. Share the full list so package quantities, weights and loading space can be checked together.

Send Your Enquiry

Tell us what you need to support, the required height, the quantity and the destination. Add a drawing, sample details or your current specification if you have one.
Request your quote or message us on WhatsApp.
Email: info@irontrix.com
WhatsApp / WeChat: +86 136 2201 2720

Send Inquiry Now

As one of the most professional steel prop manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to wholesale bulk durable steel prop made in China here from our factory. Contact us for more details.