WyRoll 3RA Series Asymmetric Plate Rolling Machine

The WyRoll 3RA Series is an asymmetric plate rolling machine with 3 rolls and an asymmetric configuration of the side rolls, available in 5 models — from the 3RA 6/10 (6 mm/2000 mm) to the 3RA 50/200 (50 mm thickness, 6000 mm width) — with hydraulic top-roll adjustment, variable-frequency side drive and an automatic synchronized material-support system. The asymmetric configuration of this asymmetric plate rolling machine allows the pre-rolling of the plate ends without manual reversal of the material — one of the main limitations of symmetric 3-roll machines — with a rolling and roundness accuracy of ±0,1 mm on thicknesses up to 50 mm and widths up to 6000 mm.

Compared with the WyRoll 3R Series with a symmetric configuration and the WyRoll 3RV Series with a variable axis, the WyRoll 3RA Series asymmetric plate rolling machine uses the fixed asymmetric positions of the side rolls — one higher, one lower relative to the symmetry axis — to ensure the complete pre-rolling of the first plate end at the inlet and the second end at the outlet, without additional manual operations. The variable-frequency side drive reduces energy consumption by 25% compared with fixed-speed drive systems, with constant production throughout the rolling cycle.

Key advantages of the WyRoll 3RA Series asymmetric plate rolling machine

• Asymmetric configuration — end pre-rolling without plate reversal — the WyRoll 3RA Series asymmetric plate rolling machine positions the side rolls asymmetrically relative to the central axis, allowing the complete pre-rolling of both plate ends without manual reversal — an operation that on symmetric machines requires removing the plate, reversing it and re-feeding it, with a risk of misalignment and roundness errors.

• Hydraulic top-roll adjustment eliminating manual adjustment — the Bosch Rexroth hydraulic top-roll adjustment system with integrated positive-linear cylinders ensures precise and uniform vertical control over 360°, eliminating the repetitive manual adjustments when changing the plate thickness or the programmed rolling diameter.

• Variable-frequency side drive — 25% more energy-efficient — the Lin-i Solar Taiwan variable-frequency motor of the asymmetric plate rolling machine reduces energy consumption by 25% compared with fixed-speed drive systems, with constant production and automatic adaptation of the speed to the actual rolling load throughout the cycle.

• Automatic synchronized material-support system — the automatic material-support system with synchronized accompanying rolls and hydraulic arms guides the plate throughout the rolling, preventing the falling and misalignment of heavy materials up to 20 tonnes on the 3RA 50/200 model, without manual crane handling during the cycle.

• Conical-rolling device 1,5–3,5° — 60% reduction in manual adjustment — the quick-change conical-rolling device reduces manual adjustment operations by 60% compared with conventional conical-rolling systems, allowing the production of truncated cones with standard angles of 1,5–3,5° with minimized setup times.

• CNC control with 8 axes and real-time monitoring — the Pfiffner Germany CNC system with 8 axes monitors all rolling parameters in real time, with program storage, offline compatibility and multi-language support, ensuring that the optimal parameters are maintained throughout the cycle without continuous operator supervision.

• 5 models — thicknesses 6–50 mm, widths 2000–6000 mm — the WyRoll 3RA range covers a broad interval of specifications between the 3R series (max 20mm/4060mm) and the 3RV series (max 80mm/10000mm), with 5 models configurable for the specific requirements of each manufacturer of vessels and cylindrical structures.

Technical specifications of the WyRoll 3RA Series asymmetric plate rolling machine

The WyRoll 3RA versus the 3R, 3RV and 2R — a complete selection guide

The WyRoll family covers four different mechanical architectures, each with specific advantages. The WyRoll 2R with 2 rolls eliminates the straight zones without pre-rolling, but is limited to 30mm/4000mm. The WyRoll 3R with 3 symmetric rolls offers ±0,08mm accuracy and 42CrMo shafts, but requires separate pre-rolling of the ends. The WyRoll 3RA asymmetric plate rolling machine eliminates the separate pre-rolling through the asymmetric configuration, with thicknesses up to 50mm and widths up to 6000mm — intermediate performance between the 3R and the 3RV. The WyRoll 3RV with a variable axis covers the extreme capabilities: 80mm thickness, 10000mm width, conical rolling 0–45°.

The WyRoll 3RA Series asymmetric plate rolling machine is the optimal choice when: the thickness exceeds 20mm (the 3R limit) but does not reach 80mm (the 3RV), the width is between 4000–6000mm, separate pre-rolling is unacceptable for productivity reasons, and the required conical rolling is in the 1,5–3,5° range (does not exceed 45°). UZINEX provides free consultancy for selecting the correct series.

Applications and industries for the WyRoll 3RA Series asymmetric plate rolling machine

The WyRoll 3RA Series asymmetric plate rolling machine is intended for manufacturers of medium-large capacity pressure vessels, storage tanks, heat exchangers and cylindrical structures in the chemical, petrochemical and energy industries, where plate thicknesses of 16–50 mm and widths of 3000–6000 mm are standard specifications.

Manufacturers of agricultural and industrial silos use the 3RA 16/1 and 3RA 25/1 models of the asymmetric plate rolling machine for rolling steel shells of 16–25 mm thickness and 3000–3500 mm width, with the conical-rolling device for producing the conical silo caps without separate forming operations. The elimination of manual pre-rolling increases productivity and reduces roundness errors at the shell ends.

Manufacturers of equipment for the food and pharmaceutical industries that produce stainless-steel tanks and reactors use the WyRoll 3RA asymmetric plate rolling machine for the 6–25 mm thicknesses of stainless steel with ±0,1 mm accuracy — parameters that ensure the tightness of the welded joints in accordance with European hygiene standards for equipment in contact with food or medicines.

How the WyRoll 3RA Series asymmetric plate rolling machine works

1. CNC program and rolling-parameter setup — the operator selects or enters the rolling program into the 8-axis Pfiffner CNC system; the hydraulic top-roll adjustment is set automatically for the programmed diameter and thickness.

2. Plate feeding and first-end pre-rolling — the plate is fed into the asymmetric plate rolling machine; the asymmetric configuration of the side rolls ensures the pre-rolling of the first end immediately at the inlet, without a separate operation, with the synchronized material-support system guiding the heavy plates.

3. Progressive rolling with variable-frequency drive — the variable-frequency motor drives the rolls at the optimal speed for the current thickness and material, with 25% lower energy consumption than fixed-speed systems; the CNC monitors and corrects the parameters in real time.

4. Final-end pre-rolling without reversal — at the outlet, the asymmetric configuration automatically pre-rolls the final plate end without manual reversal of the material — the decisive advantage over symmetric 3-roll machines.

5. Conical rolling (optional) — the quick-change conical-rolling device is activated for truncated cones with angles of 1,5–3,5°; the 60% reduction in manual adjustments significantly shortens the setup compared with conventional systems.

6. Removal with automatic material support — the finished shell with ±0,1 mm accuracy is removed with the assistance of the automatic support system, with the hydraulic arms preventing damage to materials up to 20 tonnes during unloading.

Frequently asked questions about the WyRoll 3RA Series asymmetric plate rolling machine

How does the asymmetric configuration eliminate the need to reverse the plate compared with symmetric 3-roll machines?

On symmetric 3-roll machines, the side drive roll is positioned at the same height on both sides, which means that the first plate end (at the inlet) cannot be pre-rolled in the same pass as the rest of the plate — requiring a separate pre-rolling operation with the plate reversed. The WyRoll 3RA Series asymmetric plate rolling machine has one of the side rolls lower than the other, creating a geometry that allows the pre-rolling of the first end at the inlet and the last end at the outlet in the same continuous pass, without removing and reversing the plate.

What cone angle can the WyRoll 3RA machine produce compared with the WyRoll 3RV?

The WyRoll 3RA Series asymmetric plate rolling machine produces truncated cones with angles of 1,5–3,5°, covering the common cones in the tank and silo industry. The WyRoll 3RV Series with a CNC conical-rolling device of 0–45° covers a much wider range of angles, suitable for naval applications and offshore structures with complex profiles. If the required cone angles are in the 1,5–3,5° range, the WyRoll 3RA offers the necessary capabilities at a lower investment cost than the 3RV.

Is the WyRoll 3RA Series asymmetric plate rolling machine eligible for European funding?

Yes. UZINEX supplies equipment for EU-funded projects — NRRP, the Regional Program, the Just Transition Program — and is a member of the Enterprise Europe Network. The WyRoll 3RA Series asymmetric plate rolling machine can be included in funding applications for modernizing production capacity. UZINEX provides the complete technical documentation for public procurement procedures and tenders.

Why UZINEX for the WyRoll 3RA Series asymmetric plate rolling machine

• Free technical consultancy — 3RA, 3R, 3RV or 2R — UZINEX evaluates the thicknesses, widths, diameters, the pre-rolling requirement and the cone angles to recommend the optimal series and model in the WyRoll family.

• Transport, installation and commissioning included free of charge — the asymmetric plate rolling machine is delivered, installed and calibrated at the customer's site by the UZINEX technical team, with testing on the real materials and operator training on the 8-axis CNC.

• Extended 60-month warranty — warranty for all components with technical support and intervention in under 36 hours.

• National technical support in under 36 hours — a 24/7 telephone line and fast on-site or video intervention.

• AI smart manual included — complete documentation with AI assistance for 96%+ of technical requests without human intervention.

• Full eligibility for European funding — documentation and support for EU, NRRP and structural-funds funding.

The WyRoll 3RA Series asymmetric plate rolling machine is the solution for manufacturers of tanks, vessels and cylindrical structures in thicknesses of 6–50 mm and widths of 2000–6000 mm — with an asymmetric configuration for complete pre-rolling without plate reversal, Bosch Rexroth hydraulic top-roll adjustment, a variable-frequency drive with 25% energy savings, 8-axis CNC and an automatic synchronized material-support system, in 5 models from 5 tonnes to 70 tonnes machine weight.