The Advantages of Full Variable Jacking — Why It’s a Game Changer for Truck-Mounted Aerial Platforms
For mobile elevated work platforms (MEWPs) and truck-mounted access units, stability, safety, and flexibility are key. One feature that is increasingly valued in high-end access platforms is full variable jacking. In this post, we’ll explain what full variable jacking means, explore its benefits, and then show how our RUTHMANN STEIGER T 300 XS and T 330 XS models leverage this technology — and best of all, we have stock ready to go now.
What is Full Variable Jacking?
Full variable jacking refers to outriggers (or jacks) that can be extended and adjusted continuously (rather than in fixed increments) to precisely control the height and leveling of the vehicle chassis. Instead of fixed steps or predefined positions, full variable jacking gives the operator fine control over each jack’s extension and load distribution.
This is more advanced than a conventional “fixed” or “step-out” outrigger system, which usually has a limited number of positions.
With full variable jacking, operators can:
- Precisely level the vehicle on uneven terrain
- Adjust each corner independently to balance load
- Monitor and control jack force in real time
- Make minor corrections during operation (if permitted)
Key Benefits of Full Variable Jacking
Here are the main advantages of full variable jacking — benefits that make a real difference in daily operations with aerial lifts:
Enhanced Safety and Stability
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Better load distribution: Continuous adjustment allows the chassis to be kept close to level, reducing the risk of excess tipping moment or uneven loading.
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Dynamic compensation: Some systems allow small ongoing adjustments while in operation, helping to maintain stability when boom movement or wind causes minor shifts.
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Reduced stress on structure: With a more evenly balanced frame, there’s less localized stress on outriggers or chassis components, which can reduce fatigue and maintenance issues.
Faster and More Flexible Setup – Even on Uneven Ground
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On sloping or irregular surfaces, full variable jacking means you’re not limited to a few “safe positions” — you can precisely match the terrain.
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With the fully variable jacking system, you have hundreds of different application possibilities. Each leg can be deployed in increments — 10%, 20%, 30%, and so on — giving the operator total control to adapt to site conditions.
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This reduces the need for cribbing, blocks, or shims, and speeds up the setup process.
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For urban, roadside, or constrained sites, this flexibility is especially valuable.
Improved Working Envelope and Reach
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Because the platform chassis can be more precisely leveled, the working envelope is often maximised. You’re less likely to have to retract or curtail outreach because of a tilt or imbalance.
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That means you often get more reach, safer operation, and fewer “no-go” zones.
Better Operational Efficiency and Uptime
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Quicker setup times and fewer site adjustments translate to more productive hours on site.
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Fewer restrictions because of terrain means fewer aborted jobs or re-lifts.
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Over time, better alignment reduces wear on outriggers, seals, and structure, improving reliability and lowering maintenance costs.
RUTHMANN: Full Variable Jacking in Action
The RUTHMANN STEIGER range offers state-of-the-art truck-mounted platforms that integrate full variable jacking to maximise performance, safety, and flexibility.
Two models that exemplify these advantages and are currently in stock are:
Why the RUTHMANN STEIGER T 300 XS and T 300 XS are Ideal Choices
These platforms combine the proven reliability of RUTHMANN engineering with the latest control systems, offering:
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A high working height and outreach combined with compact chassis design
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Precise and responsive jacking control to deal with challenging ground conditions
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Robust structural design, with safety systems and redundancy
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Compatibility with standard service networks and parts support via Versalift UK
Most importantly, we have stock ready to go on both models, meaning reduced lead time and quick deployment into your fleet. That stock availability gives you a competitive edge — you don’t need to wait months; you can order, and begin work more quickly.
Get In Touch
Full variable jacking is a game-changing feature for truck-mounted aerial platforms, giving operators finer control, safer setups, and more operational flexibility — especially on uneven terrain.
If you’d like to see specifications, download brochures, or arrange a demonstration, contact us today.
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