Samples of jobs done with Forging Twisting Machine MT500A CNC
The Twisting Iron Machine MT500A CNC cold-forms steel to manufacture twisted bars, scrolls and numerous components for industrial or ornamental applications. It twists square bar up to 40 mm, bends square bar up to 25 mm and features an ESA S820 CNC control with the latest Industry 4.0 technology.
The MT500A CNC is an automatic twisting and bending machine designed for small, medium and large cold-forming production runs. Its welded and machined monobloc steel frame provides high rigidity, durability and precision. It features two independent workstations: twisting and bending with no throat-depth limitation, allowing large-size parts to be produced. The machine includes a standard tooling kit and accepts optional tooling, custom-made dies and customer-designed tooling.
Our customers say
-
We purchase a metal Twisting machine from Prada Nargesa,S.L. in 2011.
We were very pleased with the price quoted and the machine was delivered within 2 weeks.
We would highly recommend Nargesa to anyone in the metal fabrication business, their service was second to none.
-
The machines we bought from you are working very well. We are satisfied with the results.
Keep on doing good!.
It has already been a year since we have the MC400 bender and the MT500, they are really easy to handle and very strong and resistant.
Our customers are satisfied with the work and we deeply thank Nargesa.
Technical features
What is the MT500A CNC used for?
The MT500A CNC is intended for metalworking shops, blacksmithing and ornamental ironwork companies, metal transformation businesses and manufacturers that need to produce repeatable batches or develop custom solutions using cold twisting and bending processes.
It is designed to work with square, round and tubular sections, as well as round bar, handrail/flat bar, strip and other metal profiles within the machine's working capacities.
It can produce, among other parts:
-
twisted bars
-
scrolls
-
bends
-
hooks
-
decorative baskets
-
links
-
drill or auger-type components
-
helical components
-
rings and other joining elements
-
spirals
-
coils
-
heat-exchanger coils
-
handles and grips
-
clamps
-
clips and staples
Working capacities
| Specification | Value |
| Maximum square-bar twisting capacity | 40 mm / 1 3/8" |
| Maximum square-bar bending capacity | 25 mm / 1" |
| Maximum flat bar / handrail bar capacity | 50 × 10 mm / 2" x 3/8" |
| Maximum continuous twisting length | 1.620 mm / 63,78" |
| Rotation speed | Adjustable from 0 to 10 rpm |
| Working method | Cold twisting and bending |
| Workstations | Twisting and bending |
| Bending throat-depth limit | No limit |
| Transmission system | Geared motor with hardened spur gears |
| Motor power | 4 kW / 5,5 CV |
| Power supply | 230/400 V three-phase |
| Control | ESA S820 CNC |
| Programming system | Automatic part programmer |
| Programming units | Millimetres or inches |
CNC control with Industry 4.0 technology
The new ESA S820 CNC control with Industry 4.0 technology brings a higher level of automation, connectivity and process control to the MT500A CNC. It allows the operator to program working sequences, reproduce parts with high precision and reduce manual setup operations, improving productivity and batch consistency.
Industry 4.0 technology also allows Nargesa to remotely access the machine control, with the customer's authorisation, for technical support, fault diagnosis, parameter checks and assistance during commissioning or operation. This enables many service queries to be solved faster, reducing downtime and simplifying maintenance and after-sales support.
The system can also store up to 10,000 programs, retrieve previous jobs and speed up changeovers between part references. Together with ECO mode, which automatically reduces electrical consumption during idle periods, the new control improves both production efficiency and machine management and maintenance.
Cold forming: power, control and rigidity
The MT500A CNC forms metal directly at room temperature, with no prior heating. By eliminating a thermal cycle, the process avoids potential material changes associated with heating and simplifies production because no furnace or quenching time is required.
Its 4 kW / 5.5 hp motor, combined with a geared transmission using hardened spur gears, delivers the torque required to form large-section profiles in a stable and controlled manner. The machine can twist square bar up to 40 mm and bend square bar up to 25 mm. Rotation speed is adjustable from 0 to 10 rpm, allowing the operating parameters to be adapted to the part, material and forming process.
Two independent workstations
The MT500A Twisting Iron Machine has two workstations:
-
Twisting station for continuous lengths up to 1,620 mm.
-
Bending station with no throat-depth limitation.
The machine can twist a continuous section up to 1,620 mm in a single positioning. For longer lengths, the bar can be shifted and repositioned so twisting can continue on the same workpiece by successively overlapping or linking the working sections. This means the total bar length is not limited by the length of the worktable.
The absence of a throat-depth limitation at the bending station makes it possible to work with large parts, which is particularly useful for manufacturing railings, grilles, gates, fences and other large-format metalwork.
Programmable direction of rotation
The CNC control allows the operator to program the direction of rotation of the main spindle, clockwise or counter-clockwise, according to the part geometry and production sequence. This defines the orientation of the twist, reduces handling and repositioning, and simplifies the processing of long or complex parts by directing workpiece travel toward the side with the greatest available clearance and helping prevent interference with the machine, tooling or surrounding area.
The control also incorporates an optimised operating mode that automatically selects the shortest angular path back to the zero position, reducing non-productive movements and waiting times, especially in programs with multiple operations. Both the rotation direction and the return strategy are stored in each part program, ensuring automatic repeatability and the same production criteria throughout the batch.
Special tooling and customer-designed solutions
For complex forming processes, special geometries or specific production requirements, Nargesa can design and manufacture custom tooling for the MT500A. Each application is analysed according to the required finished part, material and forming sequence in order to develop a solution adapted to the customer's actual process.
Nargesa can also supply mounting discs that provide a base for customers to design, manufacture and install their own tooling. This gives the workshop greater autonomy and makes it easier to adapt the machine to special parts or dedicated processes.
Control CNC ESA S820
The CNC ESA S820 control automates and simplifies the twisting and bending process, allowing operators to program each job and repeat it with complete precision. Its touchscreen interface makes it easy to create, modify and retrieve programs, reducing setup times and manual adjustments.
Thanks to Industry 4.0 technology with remote connectivity, diagnostics, technical assistance and remote support can be carried out directly on the machine control, speeding up troubleshooting and reducing downtime.
It also includes features designed to improve daily productivity, such as storage for up to 10,000 programs, part counter, programmable rotation direction, optimized return, multilingual interface and ECO Mode to reduce energy consumption during periods of inactivity.
Optional accesories for Twisting Iron Machine MT500A CNC
Belly top railing tooling diam. 225mm
Tooling to make the belly top railing styles, very used in balconies and windows.
REF: 140-01-03-00003
INNER DIAMETER: 225mm.
MAX. CAPACITY: 16mm round or square.
WEIGHT: 12 Kg.
Optional tooling
Flat bent rings, inner diam. 96,100,110mm
Tooling made os steel to make bending operations in square and round bars and the so called British Rail.
REF: 140-01-03-00005
INNER DIAMETER: 96,100,110mm
MAX. CAPACITY: 16mmRound or square.
WEIGHT: 10 Kg.
Optional Tooling
Edge scroll tooling
Tooling made of treated steel to make volutes or spirals on its edge in order to give it a different aspect, very used in some specific countries.
REF: 140-01-03-00006
MAX. CAPACITY: Round or square 25mm.
WEIGHT: 0,400 kg.
Optional Tooling.
Baskets tooling
Tooling to make all kinds of ornamental baskets in different sizes in square or round.
REF: 140-01-03-00012
MAX. CAPACITY: 4 square or round bars of 12mm
WEIGHT: 55Kg.
Available tooling for millimeter and inch square sizes
Optional Tooling
Download (1.57 MB)
Download (1.57 MB)
Oval scrolls tooling
Tooling made of steel to make oval scrolls for all kinds of rails.
UNITS PER TOOLING: 2
REF: 140-01-03-00004
EXTERNAL DIAMETER: 240x190mm.
MAX. CAPACITY: 16 mm square or round
WEIGHT: 11 Kg.
Optional tooling.
Bent pipe in fixe radius
Tooling made of steel to make bents in adjustable and fixed radius and different degrees.
REF: 140-01-03-00002
PIPE MAX. DIAMETER: 40mm
MINIMUM PIPE THICKNESS: 3mm
RADIUS OF THE PIECE: 3 times the pipe diameter.
DEGREES: Max. 180º
WEIGHT: From 15 to 35 Kg.
Optional Tooling
Double eyed tooling
Tooling to make the folding commonly called "pig's tail"it's very used in balconies, handrails and many ornamental utilities.
PIECES PER TOOLING: 7
REF: 140-01-03-00001
DOUBLE EYE: To the right , to the left and double.
MX. CAPACITY: 16mm Round.
WEIGHT: 35 kg.
Optional Tooling
Included accesories for Twisting Iron Machine MT500A CNC
Flat bent rings 80mm.
Tooling made of steel F1140 to make rings with 80mm inner diameter either in round or square.
REF: 130-01-03-00010
RING INNER DIAMETER: 80mm.
Max CAPACITY: round or square 16mm.
The spiral cuts and some rings could be obtained to be put between the balusters.
Standard Tooling
Tooling for hooks and chains
Microfusion treated tooling to make all kind of bendings, hooks, chains. etc...
REF: 130-01-03-00165
Max. Capacity. round or square 20mm.*
Flat bar 50x10mm
It bends all kind of material
* For different diameters please ask the manufacturers
Standard Tooling
Flat bar bending tooling
Tooling made of treated steel to make bending operations in flat bars, handrails or any kinds of clods.
REF: 140-01-03-00011
MAX. CAPACITY: Flat bar 50x10mm.
Bending with minimun external radious.
WEIGHT: 3,1 Kg.
Standard Tooling
Spiral tooling diam. 120mm
Tooling made of treated steel F1140 to make the second operation of the spiral in flat bar, square or round max. 10mm thickness.
REF: 120-01-03-00117
SCROLL EXTERNAL DIAMETER: 120mm.
MAX. CAPACITY: 40x8mm
Standar Tooling
Spiral tooling diam. 220mm
REF: 130-01-03-00172
SCROLL EXTERNAL DIAMETER: 220mm.
MAX. CAPACITY: 40x10mm Max: 16mm.
Standard Tooling.
Spiral tooling diam. 450mm
Tooling made of steel F1140 to make the second operation of the spiral in flat bar, square or round max. 25mmthickness.
REF:130-01-03-00171
SCROLL EXTERNAL DIEMETER: 450mm.
MAX. CAPACITY: 50x10mm Max: 25mm.
Standard Tooling
Tooling for spiral start diam. 100mm
Tooling made of treated steel F1140 to make the start of the spiral in flat bar, square or round, 16mm maximum thickness.
REF: 120-01-03-00116
VOLUTE EXTERNAL DIAMETER: 100mm.
MAX. CAPACITY: 40x10mm Max: 16mm.
Standard Tooling
Tooling to make spiral start diam. 180mm
REF:120-01-03-000153
VOLUTE EXTERNAL DIEMETER: 180mm.
MAX CAPACITY: 50x10mm Max: 25mm.
Standard Tooling.
Tooling to make the spiral start diam. 80mm
Tooling made of treated steel F1140 to make the start of the spiral in flat bar, square or round max. 10mm thickness.
REF: 120-01-03-00115
VOLUTE EXTERNAL DIAMETER: 80mm.
MAX. CAPACITY: 40x8mm
Standard Tooling.
Tooling to make scrolls on square bars 12 and 35mm or 1/4" and 1 1/2" inches Whitwort
UNITS PER MACHINE: 2
REF: 120-01-03-00123 -----------(12x12mm and 35x35mm)
REF: 125-01-03-00100 -----------(1/4x1/4" and 1 1/2"x1 1/2" Inches Whitwort)
Standard tooling
Tooling to twist square 14 and 30mm or 3/8" and 1 1/4" inch Whitwort
Tooling made of treated steel F1140 to make twisting operations in square 14x14mm and 30x30mm or 3/8"x3/8" and 1 1/4"x1 1/4"" inches Whitwort, in Carbon coal.
UNITS PER MACHINE: 2
REF: 120-01-03-00124 -----------(14x14mm and 30x30mm)
REF: 125-01-03-00101 -----------(3/8"x3/8" and 1 1/4"x1 1/4" inches Whitwort.
Utillaje de serie.
Tooling to twist square 16 and 25mm or 1" and 1/2" inches Whitwort
Tooling made of treated steel F1140 to make the twisting for 16x16mm square bar and 25x25mm or 1"x1" and 1/2"x1/2" inches Pulgadas Whitwort, in conventional carbon steel.
UNITS PER MACHINE: 2
REF: 120-01-03-00125 -----------(16x16mm and 25x25mm)
REF: 125-01-03-00102 -----------(1"x1" and 1/2"x1/2" inches Whitwort).
Standard Tooling
Tooling to scroll 18 and 20mm square bar or 3/4" and 5/8" inches Whitwort
Tooling made of treated steel F1140 to make twisting in 18x18mm and 20x20mm square bar or 3/4"x3/4" and 5/8x5/8" inches Whitwort, in conventional carbon steel.
UNITS PER MACHINE: 2
REF: 120-01-03-00127 -----------(18x18mm and 20x20mm)
REF: 125-01-03-00103 -----------(3/4x3/4" and 5/8x5/8" inches Whitwort)
Standard Tooling.
Tooling for scrolling 40mm square and flat bar 50x10 mm or 1 3/4" and 2"x3/8"inches Whitwort
UNIDADES POR MÁQUINA: 2
REF: 120-01-03-00126 -----------(40x40mm y 50x10mm)
REF: 125-01-03-00104 -----------(1 3/4"x1 3/4" y 2"x3/8"Pulgadas Whitwort)
Standard Tooling
+ Info for Twisting Iron Machine MT500A CNC
ESA S820 CNC control features
The Twisting Iron Machine MT500A CNC incorporates an ESA S820 CNC control with a 7-inch colour touchscreen, specifically adapted to twisting and bending operations. Its intuitive interface simplifies programming, storage and retrieval of part programs, enabling convenient and precise process management.
In addition to touchscreen control, the machine is operated by an intuitive bidirectional joystick, which provides direct control of movement in both directions.
| Specification | Value |
| Display | 7-inch colour touchscreen |
| Resolution | 800 × 480 pixels |
| Storage capacity | Up to 10,000 programs |
| Languages | More than 20 |
| Programming units | Millimetres or inches |
| Operating modes | Manual and automatic |
| Bending control | Angle programmable in degrees |
| Part counter | Included |
| Alarm diagnostics | On screen |
| Preventive maintenance warning | Included |
| Technology | Industry 4.0 |
| Remote connection | Available |
| Memory | 128 MB silicon disk |
| Analogue inputs | 2 inputs, 12-bit resolution |
| Digital inputs | 16 inputs, 24 Vdc |
| Digital outputs | 16 outputs, 24 Vdc, 0.7 A max. |
| Output protection | Overload and short-circuit protection |
| Serial port | 1 RS232 |
| CAN port | 1 port with 9-pin Sub-D female connector |
| USB port | 1 |
| Ethernet port | 1 |
| Power supply | 24 Vdc |
Industry 4.0 technology and remote connection
Industry 4.0 technology allows, with the customer's authorisation, Nargesa technical service to connect remotely to the machine.
This connection can be used to:
-
Provide technical assistance.
-
Analyse alarms or faults.
-
Check operating parameters.
-
Support the customer during programming.
-
Carry out software updates.
-
Reduce travel requirements and intervention times.
Part programming
The ESA S820 control can store up to 10,000 programs.
This capacity makes it possible to build a library of proprietary parts, quickly retrieve previous jobs and repeat production runs without re-entering the setup parameters.
The system allows the operator to:
-
Create programs for different parts.
-
Store up to 10,000 programs.
-
Retrieve stored programs.
-
Repeat production batches.
-
Program dimensions in millimetres or inches.
-
Work in manual or automatic mode.
-
Control bending angle in degrees.
-
Record the number of produced parts using an integrated counter.
-
Optimise the return of the main spindle to the zero position by automatically selecting the shortest angular path, reducing non-productive movements and waiting time between operations.
Automatic bending control
During bending operations, the operator can program the main spindle rotation angle in degrees. The CNC automatically reproduces the movement according to the programmed value, ensuring accurate repeatability between parts in the same batch while reducing the need for manual adjustments during production.
Manual and automatic operation
The control offers two operating modes:
-
Manual mode: for setup, testing, tooling preparation and one-off parts.
-
Automatic mode: for repeating cycles and producing batches of previously programmed parts.
In automatic mode, programs can be created with multiple consecutive operations. This makes it possible to manufacture complex components with twists or bends at different points, defining the required movements and parameters for each stage.
Once a program has been saved, the machine repeats the same sequence in every cycle, maintaining high repeatability and excellent consistency between parts, even in high-volume production.
Part counter
The integrated counter records the number of parts produced.
This function supports batch control, production planning and quantity verification.
Multilingual control
The CNC is available in more than 20 languages, making it easier to use by operators in different countries.
Programming can be carried out in millimetres or inches.
Diagnostics and maintenance
The ESA S820 control includes tools designed to simplify maintenance and reduce potential downtime:
-
On-screen alarm diagnostics.
-
Preventive maintenance warnings.
-
Machine status information.
-
Technical assistance through remote connection.
These functions support remote supervision, parameter adjustment in complex processes and preventive maintenance planning.
Dimensions of the machine Twisting Iron Machine MT500A CNC
| Item | Value |
| Width | 2.200 mm / 86.6" |
| Depth | 800 mm / 31,50" |
| Height | 1.270 mm / 50" |
| Weight | 1,399 kg / 3,084.26 lb |
| Customs tariff code | 84622600 |
The MT500A CNC is supplied fully assembled and ready for installation.
Characteristics of the packaging Twisting Iron Machine MT500A CNC
| Number of packages | 1 |
| Width | 2,200 mm / 86.6 in |
| Depth | 1,000 mm / 39.4 in |
| Height | 2,020 mm / 70.5 in |
| Volume | 4.44 m³ |
| Net weight | 1,399 kg / 3,084.26 lb |
| Gross weight | 1,483 kg / 3,269.45 lb |
| Customs tariff code | 84622600 |
Standard packaging consists of:
-
ISPM 15 fumigated wooden pallet.
-
Three-layer cardboard box.
-
Suitable protection for sea freight.
Optional: complete ISPM 15 wooden packaging
Uses of the machine Twisting Iron Machine MT500A CNC
The Twisting Iron Machine MT500A CNC can be used to manufacture decorative and structural metal components for a wide range of applications.
Real-world applications
In industrial applications, the MT500A can be used to produce:
-
Hooks, links, rings and eyelets.
-
Handles, supports and clamps.
-
Clips, staples and metal fastening components.
-
Springs, spirals and helical elements.
-
Coils and tubular components for heat exchangers.
-
Fixed-radius tube bends.
-
Bent or twisted parts requiring multiple operations.
-
Special components produced in batches using custom tooling.
In ornamental forging and metal construction, it can manufacture components for:
-
Grilles, railings and balustrades.
-
Doors, gates and enclosures.
-
Ornamental fences and perimeter barriers.
-
Stairs and architectural structures.
-
Tables, chairs and metal furniture.
-
Interior and exterior decorative elements.
-
Restoration and reproduction of forged components.
-
Custom artistic metalwork projects.
Compatible profiles
The MT500A CNC can work with different metal profiles, depending on their dimensions and the tooling used:
-
Square bar/profile
-
Round bar/profile
-
Tube
-
Rod or reinforcing bar
-
Handrail bar
-
Flat bar
-
Strip
-
Other profiles compatible with the installed tooling
Suitable materials
The MT500A is designed for cold forming metallic materials and can process:
-
Mild steel
-
Carbon steel
-
Aluminium
-
Brass
-
Bronze
-
Stainless steel
-
Other malleable non-ferrous metals
Application sectors
The machine is particularly suitable for:
-
Metal component manufacturers.
-
Ornamental forging companies.
-
Manufacturers of grilles, railings and enclosures.
-
Manufacturers of gates and metal structures.
-
Tube and profile processing companies.
-
Structural and architectural metalwork companies.
-
Furniture and equipment manufacturers.
-
Blacksmithing and light fabrication workshops.
-
Industrial subcontractors.
-
Manufacturers that need to develop special parts or custom production runs.
The combination of CNC control, interchangeable tooling and the ability to execute multi-operation sequences means the MT500A can be used for both custom work and higher-volume repeat production.
