

Nargesa MT500A Automatic Twisting Machine
The Nargesa MT500A Automatic Twisting Machine is a heavy-duty cold-working machine designed for producing large ornamental and architectural metal components with consistent, repeatable results. With a maximum twisting capacity of 40 mm (1-3/8 inch) square bar and a maximum bending capacity of 25 mm (1 inch) round or square bar, the MT500A is designed for larger material and higher-volume production than smaller ornamental twisting machines.
The MT500A is purpose-built for ornamental ironwork, architectural metal fabrication and decorative manufacturing. It can process square and round bar, tubular profiles, flat bar and handrails to produce twists, scrolls, spirals, rings, hooks, chains, bends, baskets and other decorative shapes. Typical applications include gates, fences, railings, balusters, window grilles, handrails, doors, furniture and custom architectural metalwork.
A major advantage of the MT500A is its two separate working stations, with one station dedicated to twisting and another for bending. This provides additional working space for larger components and avoids the neck limitations found on many conventional ornamental twisting machines. The twisting station can produce continuous twists up to 1,620 mm (63.8 inches) in length.
The integrated piece programmer allows operators to set starting and ending positions, count completed pieces, automatically return the machine to its starting position and store up to 8 programs. This makes the MT500A suitable for both custom fabrication and repeat production.
Built around a welded and machined steel monoblock, the MT500A combines rigid construction with a motor-reducer transmission using treated flat pinions. Adjustable rotation speeds from 0 to 10 rpm allow operators to control the forming process according to the material and tooling being used.
All Nargesa products are manufactured in Spain using standardized mechanical and electrical components from established European manufacturers and are designed in accordance with applicable CE industrial machinery standards.
Key Features
- 40 mm twisting capacity — Twists square bar up to 40 × 40 mm (1-3/8 × 1-3/8 inches), allowing the MT500A to handle heavier ornamental material.
- 25 mm bending capacity — Bends round or square bar up to 25 mm (1 inch).
- 50 × 10 mm flat-bar capacity — Supports scrolling, bending and other ornamental operations on flat bar and handrail up to 50 × 10 mm (2 × 3/8 inches).
- 1,620 mm continuous twisting length — Produces long decorative twists without repeatedly repositioning the workpiece.
- Two independent working stations — Separate twisting and bending stations provide additional working space for larger components.
- Cold-working operation — Forms decorative components without heating the material, reducing the need for additional heating equipment and processes.
- Programmable operation — Set starting and ending positions, count pieces and automatically return to the starting position.
- 8 program memories — Store up to 8 different programs for repeat production.
- Adjustable rotation speed — Variable speed from 0–10 rpm provides control over different materials, tooling and forming operations.
- Forward and reverse rotation — Allows the operator to control the direction of the forming operation.
- Digital control panel — Simple programmable controls make repeat production easier while retaining manual control for custom work.
- Robust monoblock construction — Welded and machined steel construction provides a rigid platform for heavy-duty ornamental forming.
- Treated flat-pinion transmission — Motor-reducer drive system provides reliable power transmission with reduced maintenance requirements.
- Extensive tooling compatibility — Supports tooling for twisting, scrolling, bending, rings, hooks, chains, baskets and other decorative components.
- Metric and imperial tooling — Tooling options accommodate different material standards.
- Custom tooling capability — Custom fitting discs and tooling can be produced for specialized ornamental designs.
- Palletized lower bench — Allows the machine to be repositioned within the workshop using appropriate material-handling equipment.
- Fully assembled delivery — Supplied assembled to reduce installation requirements and speed commissioning.
Applications
The MT500A is designed for professional ornamental metal fabrication, architectural metalwork and decorative manufacturing.
Typical applications include:
- Gates and entrance gates
- Fences and decorative fencing
- Railings and balustrades
- Balusters
- Handrails
- Window grilles
- Decorative doors
- Architectural windows
- Ornamental panels
- Tables and chairs
- Decorative furniture
- Custom blacksmithing
- Architectural metalwork
- Large decorative components
- Custom ornamental designs
- Repeat production of decorative components
The machine can produce a wide range of shapes and components, including:
- Twisted square bars
- Twisted round bars
- Scrolls and spirals
- Rings
- Hooks
- Chain links
- Decorative baskets
- Braided components
- Flat-bar bends
- Handrail bends
- Belly Top railing components
- British Rail-style components
- Edge scrolls
- Oval scrolls
- Double-eye or "pig's tail" designs
The MT500A is suitable for small, medium and large production runs, making it appropriate for both custom architectural work and repeat manufacturing.
Why Choose the Nargesa MT500A?
The MT500A is designed for fabricators who need more capacity and working space than a smaller ornamental twisting machine can provide. Its 40 mm square-bar twisting capacity and 25 mm bending capacity allow it to work with substantially heavier material, while the separate twisting and bending stations provide additional room for larger components.
Its programmable control system also makes the machine practical for production environments. Once a design has been programmed, operators can reproduce the same movement repeatedly while using the piece counter and automatic return function to simplify production.
Another advantage is the machine's extensive tooling system. Standard and optional tooling allows one machine to perform numerous ornamental forming operations, giving fabricators the ability to expand their product range without purchasing separate machinery for every decorative process.
Because the MT500A works the material cold, it can produce many ornamental components without the heating process associated with traditional hot-forging methods. This can simplify production and make the machine particularly useful for modern ornamental ironwork and architectural fabrication shops.
Optional Accessories
Optional tooling allows the MT500A to be configured for additional ornamental designs and specialized forming applications.
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Belly Top railing tooling
- 225 mm (8.86 inch) internal diameter
- Up to 16 mm round or square bar
- Tooling weight: 12 kg (26.5 lb)
-
Flat bent ring / British Rail tooling
- 96, 100 and 110 mm internal diameters
- Up to 16 mm round or square bar
- Tooling weight: 10 kg (22 lb)
-
Edge-scroll tooling
- Up to 25 mm round or square bar
-
Decorative basket tooling
- Up to four 12 mm square or round bars
- Metric and imperial options available
-
Oval scroll tooling
- 240 × 190 mm external dimensions
- Up to 16 mm round or square bar
- Two units per set
-
Fixed-radius pipe bending tooling
- Maximum pipe diameter: 40 mm
- Minimum wall thickness: 3 mm
- Minimum radius: approximately 3 × pipe diameter
- Maximum bending angle: 180°
-
Double-eye / "pig's tail" tooling
- Right-hand, left-hand and double-eye configurations
- Up to 16 mm round bar
- Seven pieces per tooling set
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Custom tooling and fitting discs
- Available for specialized ornamental designs and custom profiles
Technical Specifications
| Specification | Nargesa MT500A |
|---|---|
| Machine Type | Automatic ornamental twisting and bending machine |
| Working Method | Cold twisting and bending |
| Maximum Twisting Capacity | 40 mm / 1-3/8" square bar |
| Maximum Bending Capacity | 25 mm / 1" round or square bar |
| Maximum Flat-Bar Capacity | 50 × 10 mm / 2 × 3/8" |
| Maximum Continuous Twisting Length | 1,620 mm / 63.8" |
| Adjustable Rotation Speed | 0–10 rpm |
| Motor Power | 4 kW / 5.5 HP |
| Voltage | 230/400 V, three-phase |
| Control | Programmable digital control |
| Program Memory | 8 programs |
| Piece Counter | Included |
| Automatic Return / Unbolt | Included |
| Rotation Control | Forward and reverse |
| Working Stations | Separate twisting and bending stations |
| Construction | Welded and machined steel monoblock |
| Machine Delivery | Fully assembled |
| Standard Tooling | Rings, hooks/chains, flat-bar bending, spiral starts (80–450 mm), square-bar scrolling and twisting; metric and imperial options |
| Ring Tooling Capacity | Up to 16 mm round or square bar |
| Hook and Chain Tooling Capacity | Up to 20 mm round or square bar; up to 50 × 10 mm flat bar |
| Large Spiral Tooling Capacity | Up to 25 mm round or square bar or 50 × 10 mm flat bar |
| Square-Bar Twisting Tooling | Available for 14, 16, 18, 20, 25, 30 and 40 mm |