wholesale steel prop
Base Jack

Base Jack

Base Jack
Key Selling Points

Base Jacks are essential accessories that provide stability, safety, and adjustability for scaffolding systems. One of their primary advantages is the ability to level scaffolding towers on uneven surfaces, slopes, or rough terrain. This ensures a secure and stable working platform, which is critical for worker safety and efficient operations on construction sites.


The adjustable screw mechanism allows fine vertical adjustments, enabling quick leveling without disassembling the scaffolding structure. Base Jacks support the vertical load of the scaffolding, distributing weight evenly across the foundation. This prevents tilting or uneven stress, reducing the risk of structural failure.


Durability is a key selling point. High-quality Base Jacks are made from heavy-duty steel and treated with galvanization or painting to resist corrosion, wear, and harsh environmental conditions. They are capable of supporting high loads, making them suitable for multi-level scaffolding systems and large-scale construction projects.


Ease of installation further enhances their value. Base Jacks can be placed under vertical standards and quickly adjusted to the required height. They are compatible with a variety of scaffolding systems, including frame scaffolding, Ringlock scaffolding, and Kwikstage scaffolding, providing versatility for different site conditions.


Overall, Base Jacks combine strength, safety, adjustability, and durability, making them indispensable for contractors, engineers, and site managers who require reliable, level, and secure scaffolding platforms in any construction environment.

Technical Parameters

Base Jacks are manufactured to meet international safety and quality standards. Typical technical parameters include:


Material: High-strength steel

Screw Adjustment Range: 150 mm to 500 mm (varies by model)

Load Capacity: 3–5 tons per jack, depending on size and application

Base Plate Diameter: 120–160 mm (circular or square)

Surface Treatment: Hot-dip galvanized or painted for corrosion protection

Compatibility: Suitable for frame scaffolding, Ringlock scaffolding, and Kwikstage scaffolds

Type: Standard screw jack with base plate or flat jack for low-height leveling

Application: Provides vertical adjustment and stable load transfer from scaffolding to ground


Base Jacks are designed to distribute scaffold weight evenly, ensuring stability and safety. The screw mechanism allows easy height adjustment to compensate for uneven surfaces or sloping ground. Base plates enhance contact with the ground, reducing point pressure and preventing the jack from sinking into soft surfaces.


Regular inspection of threads, base plates, and structural integrity is essential for safe operation. Installation requires placing the jack under the vertical standard, adjusting the screw to achieve level scaffolding, and confirming stability before adding additional scaffold levels.

Product Knowledge 

Base Jacks are critical components in scaffolding systems, ensuring leveling, stability, and load-bearing support. They allow scaffolds to be safely erected on uneven ground, sloped surfaces, or areas with irregular terrain. By adjusting the height of the scaffold’s base, Base Jacks help maintain vertical alignment and uniform load distribution throughout the structure.


The working principle is simple yet effective. A vertical screw mechanism allows precise height adjustment, while a wide base plate distributes the load and prevents sinking. In some designs, flat jacks or adjustable plates are used for low-height leveling or soft surfaces. This combination of adjustability and load distribution ensures a secure foundation for multi-level scaffolding systems.

Compared to scaffolds without leveling jacks, systems with Base Jacks are safer, more stable, and compliant with safety regulations. They are particularly important in construction sites with uneven terrain, outdoor installations, bridge works, and industrial maintenance where precision leveling is required.


Durable construction and corrosion-resistant coatings ensure that Base Jacks can withstand repeated use under demanding conditions. They are reusable across multiple projects and compatible with a variety of scaffolding types, including frame scaffolding, Ringlock scaffolding, and Kwikstage scaffolds.


Proper installation is critical. The Base Jack must be positioned under the vertical standard, the screw adjusted to achieve level alignment, and stability verified before adding scaffold levels. Regular inspection for wear, thread damage, or corrosion helps maintain safety and performance, making Base Jacks an essential accessory for secure and reliable scaffolding systems.

Product and Application

Visual content is essential to demonstrate the structure, installation, and applications of Base Jacks. High-quality images help contractors, engineers, and site managers understand installation methods, safety features, and compatibility.


Common image types include:

Product Overview: Individual Base Jacks showing screw mechanism, base plate, and steel construction

Detail Images: Close-ups of threads, base plates, galvanization, and locking nuts

Installation Examples: Base Jacks placed under frame scaffolding, Ringlock scaffolding, or Kwikstage scaffolds

On-Site Applications: Images showing scaffolds leveled on uneven terrain, sloping surfaces, or soft ground

Adjustability Demonstration: Step-by-step visuals showing height adjustment using the screw mechanism

Load Distribution: Images highlighting the base plate’s role in distributing scaffold weight evenly


These images are commonly used in catalogs, technical manuals, online product pages, and training materials. They provide practical guidance for proper installation, highlight structural durability, and demonstrate the Base Jack’s essential role in safe, level, and efficient scaffolding setups.


Combining technical specifications with high-quality visuals ensures that engineers, contractors, and site managers can confidently select Base Jacks for safe, adjustable, and reliable scaffolding foundations across all construction projects.


Product Parameter


SCREW BASE JACK


Product Name

Material

Size

Base Plate

 

 

 

Solid Base Jack

 

 

 

Q235 Steel Rod

30*400mm

 

 

 

120*120*4/5mm

30*600mm

32*400mm

32*600mm

34*400mm

150*150*6/8mm

34*600mm

 

 

Hollow Base Jack

 

Q235 Steel pipe; 20#Seamless pipe

38*4*600mm

 

 


150*150*6/8mm

38*4*750mm

48*4*600mm

48*4*900mm


SCREW U HEAD JACK


Product Name

Material

Size

Base Plate

 

 Solid U Head Jack

 

 Q235 Steel Rod

30*400mm

120*120*50*4/5mm;

150*150*50*4/5mm;

150*120*50*4/5mm

30*600mm

32*400mm

32*600mm

34*400mm

150*150*50*6/8mm

34*600mm

 

Hollow U Head Jack

 

Q235 Steel pipe; 20#Seamless pipe

38*4*600mm

 

150*150*50*6/8mm;

170*150*80*6/8mm; 200*200*50*8mm

38*4*750mm

48*4*600mm

48*4*900mm


SCREW NUT


  • 0.73KG M38/M48

  • 0.3KG M32/M34

  • 0.25KG M30/32/34

 

  • 0.44KG M34/38

  • 0.25KG M30/32/34

  • 0.5KG M38

 

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24"Screw Jack W/Socket24"Screw Jack U-Head24"Screw Jack W/Base Plate24"Extension Base Plate


  • Base Plate     

  • Swivel  Base Plate

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