A construction jack is one of the essential pieces of equipment in the building industry, whose primary function is to bear temporary loads and transfer the pressure of ceilings and concrete slabs to the ground until the concrete has fully gained its strength. Zaman Company, as one of the leading manufacturers in this field, utilizes high-quality raw materials and precise technologies to produce and supply various types of slab props and support jacks for different construction projects in compliance with the highest safety standards. Proper selection of the jack not only ensures site safety but also has a direct impact on the final quality of the structure.

In the construction industry, selecting a slab prop is not merely a purchase; it is an investment in structural safety and quality. Many low-cost props available on the market are manufactured using lightweight pipes and non-standard welding, imposing irreparable risks on construction projects.

Recognizing this responsibility, Zaman Company has established its production line based on the quality of raw materials, precision in manufacturing, and strict standards. Zaman construction props not only bear the load of the slab but also guarantee your peace of mind throughout the execution of the project.

Comprehensive Introduction to Zaman Slab and Support Props

Every construction project requires a specific type of prop to achieve the best possible results. Below, you are introduced to our main products in this category:

Cross-Head Prop (Cross Prop)

The cross-head prop, also known as a T-shaped prop or cross head, is the most common type of slab prop used for cast-in-place concrete slabs and beam-and-block systems. Its fixed or adjustable cross head provides a wide and secure bearing surface for placing steel profiles and timber beams.

U-Head Prop

This type of prop, also known as a U-shaped prop, features a head in the form of the letter U. Its primary application is the direct placement of wooden joists or steel profiles (soldiers) inside the head, which increases stability and safety in supporting formwork.

Flat-Head Prop (Standard Prop)

The flat-head prop, with a smooth head plate and no specific shape, is used for general applications and point-load support. Due to their simplicity and efficiency, these props are utilized in various parts of a construction project.

Push-Pull Prop

The push-pull prop is a vital tool for vertical alignment (plumbing) and bracing of wall formwork, columns, and precast concrete elements. With its precise length adjustment capability, this prop can easily neutralize lateral forces acting on the formwork and prevent movement.

Wall and Column Support Prop

These props are reinforced versions specifically designed to withstand heavy loads and lateral pressures in the formwork of tall walls and large columns. Their robust structure ensures complete stability of the formwork during concrete pouring.

The Difference Is Clear: Competitive Advantages of Zaman Construction Props

Why do professional contractors and engineers choose Zaman props? The answer lies in our key differences:

1. Superior and Heavy-Duty Raw Materials:

Unlike market-available props made from lightweight and seamed pipes, we exclusively use heavy-duty, thick-walled pipes from reputable manufacturers. This difference in weight directly translates into higher load-bearing capacity and greater resistance to bending and failure.

2. Engineered and Deep Threading:

The threads of our props are machined using precision equipment and feature deep, standardized pitches. This ensures smooth and accurate height adjustment and, more importantly, prevents slipping or thread stripping under heavy loads.

3. Integrated CO2 Welding:

All connections, especially at the head and base sections, are performed using CO2 welding robots and machinery. This type of welding creates a deep-penetration, integrated joint with strength several times greater than traditional manual welding.

4. Strict Quality Control:

The name “Zaman” is our commitment. No prop leaves the factory without passing quality control tests, including load testing and visual inspection of welds. This means guaranteed flawless performance on your job site.

Quick Comparison of Zaman Slab Props

Product Name Main Application Prop Head Type Zaman Competitive Advantage
Cross-Head Prop Cast-in-place concrete slabs, beam-and-block floors Fixed/Adjustable Cross Head Thick plate and double welding on the head
U-Head Prop Supporting joists and horizontal profiles U-shaped (channel) Standard plate thickness to prevent damage to the joists
Flat-Head Prop General and point-load support Flat metal plate Use of heavy-duty pipe even in basic models
Push-Pull Prop Aligning and bracing wall and column formwork Two hinged, adjustable ends Engineered threading for precise and easy adjustment
Wall Support Prop Withstanding lateral pressure on vertical formwork Connectable base supports High load-bearing capacity and fully reinforced structure

In general, slab props are used for shoring beneath slab formwork or concrete beams and have a load-bearing capacity of 1,500 kilograms.

Slab props are the most suitable and cost-effective means for constructing concrete slabs and beam-and-block systems. They are manufactured for heights of 3 to 4.5 meters using first-grade pipes with diameters of 50 and 60 millimeters, featuring holes for height adjustment. For higher slabs, scaffolding systems are recommended. Cross-head props are also manufactured based on customer requirements.

Double Support Jack:

These jacks consist of two arms, one small and one large, which are installed behind wall formwork and are responsible for plumb alignment of the formwork. A type of these jacks acts as a load-bearing structure and is used in one-sided formwork to withstand the lateral pressure of concrete. These jacks are connected at the beginning and the end to the soldier (soljer) and the ground through a base plate.

These jacks are made as two threaded rods; the middle section consists of a tube, and the ends are made of left-hand and right-hand threaded rebar, enabling precise adjustment of the jack length and accurate vertical alignment of the system.

Frequently Asked Questions about Ceiling and Support Jacks

1. What is the main difference between light and heavy ceiling jacks?

The main difference lies in the weight and thickness of the jack tube. Heavy jacks are made from tubes with greater thickness (for example, 2.5 mm) and have a higher load-bearing capacity, making them suitable for heavier ceilings. In contrast, light jacks are less expensive and are used for smaller projects.

2. On average, how many jacks are needed per square meter of ceiling?

As a general and practical rule, for standard ceilings (such as joist-block systems), one jack is required per square meter. However, this number varies depending on the thickness of the ceiling, the weight of the concrete, and the type of formwork, and the exact calculation must be performed by the project engineer.

3. Are the threads of Zaman Company’s jacks of pitch 8?

Yes. In Zaman Company’s ceiling jacks, high-quality threads with a standard pitch (typically pitch 8) are used, which makes height adjustment very smooth and precise while providing high strength.

4. What is the correct way to use a plumb jack?

A plumb jack is connected on one side to the ground or a fixed support and on the other side to the wall or column formwork. By turning the adjustment screw, the jack’s length is increased or decreased, and the formwork is aligned perfectly vertically (plumb).

5. What is the most important difference between Zaman jacks and cheap market jacks?

The most important differences can be summarized in three main aspects:

1. Tube weight and thickness: Zaman jacks are heavier and therefore more durable.

2. Welding method: We use standard CO2 welding, whereas most cheap jacks are produced with weak manual welding.

3. Thread quality: Our jack threads are deep and precise, preventing slippage under load. These three factors together provide significantly higher safety and longer service life for Zaman products.