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Heavy Duty Adjustable Base Jack | Scaffolding Screw Jack Leveling

Stabilize your scaffold system with Hyson's ISO-certified Adjustable Base Jacks. Features cold-rolled threads for high load capacity and smooth adjustment.

The foundation of any safe scaffolding system lies in its base. Hyson Adjustable Base Jacks are engineered to provide precise leveling and robust load distribution on uneven ground. Compatible with Ringlock, Cuplock, and Frame scaffolding systems, our jacks are the critical interface between your structure and the earth.
Unlike standard jacks prone to thread damage or rust, Hyson utilizes advanced Cold-Rolling Technology. This process not only hardens the steel surface for superior wear resistance but also ensures the thread pitch is perfectly uniform for fast, jam-free adjustments. The connection between the stem and base plate is reinforced with dual-sided fillet welding by our ISO-certified welders, guaranteeing that the base will never detach under heavy axial loads. Whether for a high-rise facade or a heavy-duty bridge shoring tower, Hyson jacks deliver stability you can trust.

Technical Specifications

Parameter
Specification
Note
Material
Q235B / Q345B Carbon Steel
Available in Solid Bar or Hollow Tube
Type
Solid Jack / Hollow Jack
Solid for heavy duty, Hollow for standard use
Diameter
Ø34mm, Ø38mm, Ø48mm, Ø60mm
Customized to fit your vertical standard
Standard Length
600mm, 760mm (Customizable up to 1000mm)
Typical adjustment range: 400-500mm
Base Plate
150x150mm, 120x120mm (Thickness: 5mm-8mm)
Punch holes available for ground anchoring
Surface Treatment
Electro-Galvanized / Hot Dip Galvanized
HDG recommended for rental fleets
Nut Material
Cast Steel / Forged Iron
Heavy-duty winged nut for hammer adjustment

Product Features

  • Cold-Rolled Threads: Our threads are formed by rolling, not cutting. This preserves the steel's grain structure, resulting in a thread that is 20% stronger and significantly more resistant to stripping than cut threads.
  • Self-Cleaning Thread Design: The coarse thread pitch is designed to shed concrete splatter and dirt, ensuring the jack nut spins freely even after months of harsh job site use.
  • Certified Welding Integrity: The joint between the tube and the base plate is the highest stress point. Hyson ensures 100% fusion welding, preventing the common "plate separation" failure seen in budget products.
  • Rental-Ready Durability: Available with Hot-Dip Galvanization, our jacks resist rust for 10+ years. This extends the ROI for equipment rental companies by reducing cleaning and replacement costs.

Application Scenarios

  • System Scaffolding: Essential starting component for Ringlock, Cuplock, and Kwikstage systems in commercial building construction.
  • Bridge & Infrastructure: Heavy-duty solid jacks used in high-load shoring towers (e.g., bridge cap supports) requiring maximum bearing capacity.
  • Mobile Scaffolding: Can be fitted with caster wheels (Swivel Jack Caster) for mobile maintenance platforms.
  • Uneven Terrain Projects: Provides critical height compensation (up to 600mm adjustment) for projects on slopes, stairs, or rugged excavation sites.
A stable project starts from the ground up. Don't risk your crew's safety with inferior base jacks. Partner with Hyson Industry for reliable, ISO-certified scaffolding components directly from the manufacturer.