Shoring jack

Shoring Jack: Adjustable Q235 Steel Prop for Slab Formwork and Deep Foundation Pits

Temporary support: Adjustable steel supports, made of Q235 steel by Hebei Xinjiuyi Construction Technology Co., Ltd. The shoring jack may be Heavy Duty or Light Duty, with inner tube diameters of 48 mm or 40 mm, outside tube diameters of 60 mm, 48 mm or 56 mm and wall thickness of between 1.6 mm and 4.0 mm. Usual lengths range from 1.7 m to 5 m. Surface options: Pre-galvanized, painting, powder coating, hot dip galvanised. Snap-type, weld-free connection for quick installation and disassembly. Dimensions, styles and colours available per your designs.

What Is a Telescopic Steel Prop?

A vertical temporary support is an adjustable steel prop, or telescopic steel prop, or Acrow prop. This site lists product, adjustable steel prop and Acrow prop as all names for the same sort of product.

The prop is made up of an inner tube, an outer tube, a nut with handle and a G-pin. The movable inner tube allows one item to be used across a variety of heights.

An alternative to wood shoring is the widespread use of steel props, and rapid height adjustment to aid save installation and takedown time.

For deep foundation pits, props may be used as part of the internal support system . “Resists water pressure and soil pressure and controls deformation by prestressing.

Shoring Jack Specifications

Compare models by slab height and load using the table. Each shoring jack should be chosen against the load table for its particular model, so tell us your needs before you buy.

Q235 Steel and Surface Treatment Options

The primary structure is built of Q235 steel. It has been designed for repeated on-site usage with props examined and maintained.

Select surface treatment based on the site condition and project duration:

• Pre-galvanized: a zinc-coated base alternative, usually used for dry or short-term applications.
• Painting: a paint coating on a galvanised foundation.
• Hot dip galvanised: A heavier zinc coating, commonly selected for damp or severe situations
• Powder Coating: Baked finish for attractiveness and surface protection.

Tell us about your site circumstances and we'll help you pick a finish.

Design Features on Site

The snap-type connection doesn’t need welding, so personnel can swiftly put up and take down props, keeping each floor cycle going.

The nut and handle enable precision height adjustment in the range of the prop. The regular standardised form also consumes minimal room on site.

Each product may be used again and again, therefore the cost per project can actually decrease with repeated usage. Stable support also helps ensure the stability of the formwork and the correctness of the completed structure.

Where This Prop Is Used

Concrete cures under prop which takes vertical stress off floor slabs and beams.

• Residential Towers: main slab formwork support for rapid floor cycling.
• Factories, bridges and tunnels: Heavy Duty props hold enormous reinforced concrete beams in height ranges.
• Deep foundation pits, subway stations, underground utility tunnels, massive commercial complexes with steel support systems and prestressed systems.
• Renovation and retrofitting: temporary support of load-bearing walls in tight locations inaccessible to big machines.

Load Capacity and Safe Use

The longer the inner tube the lower the load capacity. Always refer to the load chart for your model and identify ultimate load from safe operating load. Schedule the project to suit the safe working load.

Light Duty props are often used for lighter slabs and Heavy Duty props for heavier beam loads. Send us your slab thickness and height and we will assist you in choosing the proper kind.

Every shoring jack requires a sturdy, flat, load bearing foundation. A structural engineer should determine the buckling force before any horizontal usage.

What to Check Before You Buy?

A basic check list goes a long way to secure your project. Check with your provider on:

• Materials: Documents certifying the quality of Q235.
• Welding: quality of welds on base plates and top plates.
• Straightness and threads: straight tubes and threads that fit and turn smoothly.
• Coating: the coating thickness of the finish you have selected.
• Load testing: Your model’s compression test findings are ready.

If your project calls for certain standards or documentation, please tell us which ones and our staff will verify what we can provide for your order. Do not mix and match components of various brands in one support system.

Customization and Project Support

The company is located in the development zone of Xian County, Cangzhou City, Hebei. You may request bespoke measurements, styles and colours as per your designs and site needs.

The staff can also help out with design, solution planning, installation instruction and after-sales support. Same order might include steel formwork, floor edge protection or hoist safety gates.

Packaging

Props are packed in bundles for easy loading, transport and site handling.

FAQ

Q: Where does this prop belong?

A: Place it on a firm, level, load-bearing surface, such as a concrete slab or a wood sleeper. Do not place on loose ground, asphalt or debris which might cause settling or tip-overs.

Q: Is it safe to mix parts from different brands?

A: No. Incompatible shoring pieces may cause major failures. Use items that are interoperable and fulfil the same technical specs.

Q: How do you properly check a prop before use?

A: Check for bent tubes, broken welds, damaged threads, heavy corrosion and missing pins. Tag and discard any broken propeller. Retouch scratches on painted props. Keep threads on galvanised props clean and gently oiled.

Q: How long should I leave props on after laying concrete?

A: Never take them off too soon. Follow the cure schedule provided and wait for structural engineer approval for removal.

Q: Why side bracing for tall props?

A: Vertical supports may fail by being pushed over sideways. Tall props exposed to vibration or moving loads need horizontal bracing to maintain stability.

Q: How do I calculate the safe load at max extension?

A: Check your model’s load chart. The capacity decreases as the inner tube stretches, therefore, keep an eye on the safe working load, not the final load.

Contact Us

Send your drawings, slab height and load requirements to global@xjy8.com. Our team will recommend a suitable shoring jack type and finish for your project.