Stefa VHX Double Folder

Folders>Long Folders

The Stefa VHX Series is a next-generation hybrid power double folder designed for high-performance metal bending in large-format applications. Available in 21′ (VHX 6) and 27.5′ (VHX 8) models, the VHX delivers powerful and precise folding up to 14-gauge mild steel (2mm St40).

Engineered with a high-strength S690 tool set, the VHX comes equipped with an intuitive 2D graphical control system, gripper-finger back gauge, and extendable handling table—offering superior control, flexibility, and efficiency on every bend. The innovative design includes oversized tool clearance, 25mm thick clamping arms, manual crowning adjustment, and a built-in shear mounted to the frame to maximize workspace.

Simple hydraulics and electrical systems reduce maintenance complexity and cost, while integrated safety curtains and clamp lasers ensure operator protection.

The Stefa VHX Series double folder is a long, hybrid‑power metal folding machine for large-format work, designed to bend up to 14‑gauge (≈2 mm) mild steel with high-strength tooling, advanced 2D controls, and integrated safety and handling features aimed at efficient, precise production.

In Brief

Next-generation hybrid power double folder for high-performance metal bending.
Long-folder formats: 21′ (VHX 6) and 27.5′ (VHX 8) for large panels and long parts.
Capacity up to 14-gauge mild steel (2 mm St40), suitable for many industrial and architectural applications.
High-strength S690 tool set for durability and consistent bending performance.
2D graphical control system for intuitive programming and bend visualization.
Gripper-finger back gauge and extendable handling table to support large sheets and automate positioning.
Integrated safety curtains and clamp lasers for enhanced operator protection.

Budgeting & Pricing

Pricing estimate (USD): $120,000 – $600,000 USD, depending on configuration, length (21′ vs 27.5′), and options.
Longer bed length (27.5′ vs 21′) typically increases purchase cost due to larger structure and drive systems.
Advanced control options (2D graphical control, automation features) can add to upfront cost but reduce setup time and scrap.
Hybrid power and simplified hydraulics/electrics are aimed at lowering lifetime maintenance costs compared with more complex systems.
Integrated features (built-in shear, extendable handling table, safety systems) may reduce the need for separate ancillary equipment.
Budget should include installation, operator training on the graphical control, and periodic maintenance for hydraulic and electrical systems.

Performance / Spec Considerations

Folding capacity: Rated up to 14-gauge mild steel (2 mm St40); ensure this matches your typical and maximum material thickness requirements.
Machine length: Choice of 21′ (VHX 6) or 27.5′ (VHX 8) models affects maximum part length, floor space requirements, and handling logistics.
Tooling strength: High-strength S690 tool set supports demanding bending loads and helps maintain accuracy over time.
Tool clearance & clamping arms: Oversized tool clearance and 25 mm thick clamping arms allow for more complex profiles and robust clamping of heavy or large panels.
Bend accuracy control: Manual crowning adjustment lets operators compensate for deflection along the length to maintain consistent angles on long parts.
Automation & handling: Gripper-finger back gauge and extendable handling table improve positioning accuracy and reduce manual handling of large sheets.
Integrated shear: Shear mounted to the frame maximizes workspace and can streamline cut-and-bend workflows in a single footprint.
Controls & usability: 2D graphical control system aids in programming sequences and visualizing bends, which is important for complex or long-part jobs.
Maintenance profile: Simple hydraulic and electrical systems are intended to reduce downtime and simplify troubleshooting and service.
Safety systems: Integrated safety curtains and clamp lasers are important for compliance and safe operation, especially with large, heavy sheets.

Buying Advice

Confirm that the 14-gauge (2 mm) mild steel capacity covers your thickest and hardest materials, including any future product plans.
Measure available floor space and material flow to decide between the 21′ and 27.5′ models, including loading/unloading clearances.
Inspect the S690 tool set and 25 mm clamping arms for wear, damage, or misalignment if considering a used machine.
Test the 2D graphical control: check responsiveness, ease of programming, and whether it supports your typical bend sequences.
Verify smooth operation and accuracy of the gripper-finger back gauge and extendable handling table with real or sample parts.
Check manual crowning adjustment for range, ease of use, and its effect on bend consistency across the full machine length.
Operate the built-in shear (if equipped) to confirm cut quality, stroke smoothness, and that it does not interfere with folding operations.
Review the hydraulic and electrical layout to ensure components are accessible and that documentation and schematics are provided.
Test all safety functions—safety curtains, clamp lasers, and interlocks—to confirm they work reliably and do not hinder normal production.
Ask for sample bends on your own material and part geometries to validate angle accuracy, repeatability, and handling efficiency.

Buyer Questions

What is the maximum material thickness the Stefa VHX can handle? It is designed to fold up to 14-gauge mild steel (approximately 2 mm St40).

What machine lengths are available in the VHX Series? The series is available in 21′ (VHX 6) and 27.5′ (VHX 8) models for large-format bending.

What type of tooling does the VHX use? It is equipped with a high-strength S690 tool set intended for demanding, high-performance bending.

How is the machine controlled? The VHX features an intuitive 2D graphical control system that allows operators to visualize and manage bending operations.

How does the machine handle large sheets? It uses a gripper-finger back gauge and an extendable handling table to position and support large-format material.

What helps maintain bend accuracy over long parts? Manual crowning adjustment and robust 25 mm thick clamping arms help compensate for deflection and maintain consistent bend angles along the full length.

Does the VHX include cutting capability? Yes, it has a built-in shear mounted to the frame, designed to maximize workspace and integrate cutting with folding.

What safety features are included? The machine integrates safety curtains and clamp lasers to enhance operator protection during operation.

How complex are the hydraulics and electrics? The VHX uses simple hydraulic and electrical systems intended to reduce maintenance complexity and cost.

What is the typical price range for a Stefa VHX double folder? Estimated pricing ranges from about $120,000 to $600,000 USD, depending on configuration and options.

Source: Stefa VHX Double Folder