In applications where the vertical transport of loads or people requires precise control, solenoids provide a robust solution capable of withstanding intensive duty cycles and demanding industrial conditions.

The role of solenoids in elevators and freight lifts

In industrial lifting systems, solenoids are used to actuate or control various key mechanisms of the equipment.

Their most common applications include:

• Door opening and closing systems
• Locking and safety mechanisms
• Activation of electromagnetic brakes
• Speed limiters
• Control systems for lifting platforms

Advantages of solenoids in lifting systems

The use of solenoids in industrial elevators and freight lifts provides several technical advantages:

• Operational safety: they allow immediate activation of locking or braking mechanisms.
• High reliability: they are designed to operate with repetitive cycles in industrial environments.
• Fast response: electromagnetic actuation enables mechanisms to be activated within milliseconds.
• Easy integration: their compact design facilitates installation in different lifting systems.

Industrial solenoids for lifting systems

Manufacturers of elevators and lifting equipment require components capable of delivering mechanical performance, durability, and operational stability.

The development of solenoids adapted to each lifting system helps improve overall equipment performance and ensures safe long-term operation.

Each lifting system has specific technical requirements in terms of actuation force, size, electrical consumption, and duty cycles. Therefore, the design of customized solutions is key to ensuring optimal equipment performance.

At NAFSA, we have extensive experience in the design and manufacturing of industrial solenoids, developing electromagnetic devices tailored to the needs of each client and application.

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In this context, actuation solenoids play an important role. They are small electromagnetic components that enable the activation and locking of different mechanisms within the machine, ensuring that the dispensing process is carried out correctly.

At NAFSA, we design and manufacture solenoids for vending machines, developing components adapted to the most modern vending machinery to deliver fast and precise operation.

The role of solenoids in vending machines

Vending machines are automated systems that integrate different mechanical and electronic mechanisms. For each process to run in a synchronized way, it is necessary to use actuation devices capable of responding quickly and reliably.

Solenoids perform multiple functions within the machine, such as:

• Activating product release mechanisms
• Controlling locking or safety systems
• Operating lifting or displacement mechanisms
• Activating coin change or return systems
• Controlling automatic dispensers

Different applications of solenoids in the vending sector

Solenoids and electromagnetic components are integrated into different types of automatic machines and self-service devices. Their most common applications include:

• 24h vending machines
• Tobacco and beverage machines
• Gaming and amusement machines
• Product lifting systems
• Change machines
• Fuel station dispensers
• Parking meters

Solenoids for vending machines

At NAFSA, we develop actuation solenoids tailored to the needs of vending machine manufacturers, integrating electromagnetic solutions that ensure precision, durability, and ease of system integration.

Among the most widely used solutions in this sector are:

• ER Series – single-acting linear solenoids that can include an optional return spring, suitable for multiple activation mechanisms within the machine.

• ERC Series – open-frame linear solenoids with high mechanical performance, designed for applications requiring greater power or demanding duty cycles.

• CU Series – square-design linear solenoids with high mechanical performance and IP40 protection rating, suitable for industrial applications and automated systems.

Advantages of using solenoids in vending systems

Solenoids offer several key advantages in vending machine design:

• Fast response: they enable immediate actuation of mechanisms, essential for ensuring a smooth purchasing experience.
• High reliability: robust devices capable of withstanding repetitive operating cycles.
• Easy integration: their compact design facilitates integration into automated machinery.
• Low maintenance: with few moving parts, they offer a long service life.

Custom electromagnetic solutions for the vending sector

Each vending machine manufacturer has specific requirements in terms of force, size, energy consumption, or duty cycles. Therefore, developing customized electromagnetic solutions is key to optimizing equipment performance.

At NAFSA, we have extensive experience in the design and manufacture of solenoids for different industrial sectors, developing components tailored to the technical needs of each application.

Thanks to our technical department and specialized manufacturing processes, we can offer electromagnetic solutions that help improve the reliability and efficiency of vending machines.
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Why are solenoids essential in packaging?

Packaging and filling systems require fast, repetitive, and reliable movements. Solenoids perform perfectly in situations where:

• Precision and control: solenoids can activate mechanisms, align parts, or operate closures at the exact moment, reducing errors and improving the quality of the packaging process.
• Adaptation to automated processes: these devices integrate easily into automatic lines, acting as holding components without the need for complex additional mechanical systems.
• Better performance and lower maintenance: by not relying on many traditional mechanical elements, wear is reduced, and maintenance downtime is minimized.
• Speed: solenoids operate in milliseconds, enabling high-intensity repetitive tasks.

Where can solenoids be found in the packaging industry?

● Container and lid closure: in automatic filling machines, linear solenoids actuate mechanisms that close lids or secure seals quickly and accurately, ensuring uniform and safe results every cycle.

● Product holding and positioning: handling products on conveyor belts or transition zones requires precision. Solenoids temporarily secure metallic elements for correct orientation before final packaging.

● Packaging film perforation: solenoids act rapidly to perforate packaging films found in countless consumer products.

● Integration with automatic systems: their compatibility with PLCs (programmable controllers) and industrial control systems allows solenoids to integrate seamlessly into robotic and automated lines, helping reduce time and errors. This is especially valuable in high-production or variable-demand sectors.

Benefits for your packaging line

Solenoids improve productivity by performing repetitive movements and reducing cycle times. They ensure consistent quality thanks to their precision, making every package compliant with established standards. They lower operational costs by reducing manual intervention and extending the life of mechanical components. Finally, they offer flexibility to adapt to different product formats with minimal adjustments.

What to consider when choosing a solenoid for packaging?

When selecting the right electromagnetic solution, it is important to consider:

• Pull force: according to the weight and type of part or container to be held.
• Type of mechanism: linear, bistable, or spring-return, depending on the function in the line.
• Electrical and control integration: compatibility with existing automation systems.
• Speed: depending on stroke and size.

At NAFSA Solenoids, we design and manufacture custom solutions for industries that demand precision, performance, and reliability.

La entrada Electromagnets and solenoids for packaging and packing se publicó primero en Nafsa.

How do solenoids act in this selection and separation process?

Linear solenoids are devices that, when voltage is applied, operate with a linear motion that allows a mechanism to be actuated, pulling or pushing a cam that selects the corresponding material. Unlike permanent magnets, solenoids offer controlled linear movement, making selection more effective and allowing them to be activated or deactivated as required.

Applications in selection and separation lines

Solenoids are essential in multiple industrial processes:

• Material separation and recycling: they separate the corresponding material (plastic, glass, cans, etc.) through linear movement, directing each material to its appropriate location.
• Food industry: they ensure the selection of fruits, vegetables, and other products at each identification and sorting stage, guaranteeing quality standards.
• Industrial production lines: they enable the automation of part separation, optimizing time and reducing manual intervention.
• Parcel handling: they separate and classify boxes or packages so they reach their correct destination.

Advantages of solenoids in selection and separation processes

1. Precision and control: electrical activation and deactivation allows magnetic force to be adjusted according to process needs.
2. Higher efficiency: they allow large volumes of material to be separated in less time, optimizing production.
3. Operational safety: they reduce manual intervention and the risk of accidents when handling heavy or contaminated materials.
4. Versatility: they adapt to different machine sizes, material types, and industrial environments.
5. Speed: solenoids operate within just a few milliseconds.

Reliable solutions for your industry

At NAFSA Solenoids, we develop solenoids designed to withstand the most demanding environments and improve the efficiency of your selection and separation machinery. Our experience allows us to offer equipment that combines strength, durability, and adaptability, ensuring that every industrial process operates faster, safer, and more reliably.

La entrada Solenoids for Selection and Sorting Machinery se publicó primero en Nafsa.

What are electromagnetic lifting magnets?

Electromagnetic lifting magnets are devices that combine the attractive force of a magnet with a mechanical holding system, allowing the lifting, moving, and fixing of metallic loads quickly, safely, and efficiently. Unlike traditional methods such as straps or hooks, electromagnetic lifting magnets do not require perforations or additional fasteners, minimizing the risk of damage to materials.

Applications in transportation and logistics

In the logistics industry, handling heavy and bulky materials is a constant challenge. This is where electromagnetic lifting magnets stand out:

• Loading and unloading containers and trucks: allow quickly securing metallic loads without the need for additional equipment, speeding up workflow.
• Warehouse storage and handling: make it easier to place and retrieve materials on shelves, optimizing space and reducing physical effort.
• Safe transport of metal parts: prevent slides and unwanted movement during transport, ensuring the integrity of both the load and personnel.
• Integration into automated systems: they are compatible with cranes and automatic conveyors, contributing to the automation of logistics processes.

Key advantages of electromagnetic lifting magnets

1. Efficiency and speed: Significantly reduce handling times, allowing for shorter loading and unloading cycles.
2. Safety: Lower the risk of workplace accidents by providing a firm and stable grip on metallic loads.
3. Versatility: Adapt to different sizes, shapes, and weights of metallic materials, from steel plates to complex structures.
4. Cost savings: By reducing the need for auxiliary equipment and minimizing material damage, they represent an investment that translates into mid‑ and long‑term savings.

At NAFSA Electroimanes, we offer electromagnetic lifting magnet solutions designed to withstand the demands of modern transportation and logistics. Our equipment combines strength, safety, and durability, adapting to your specific needs to maximize your company’s operational efficiency.
If you are looking to optimize your metallic load handling processes and reduce risks in your logistics operation, electromagnetic lifting magnets are the ideal solution. Trust NAFSA Electroimanes to implement technology that drives your productivity and safety.

La entrada Magnetic holding electromagnets in transportation and logistics se publicó primero en Nafsa.

What is the VM/ND Series?

The magnetic holders of the VM/ND series are circular devices that include neodymium magnets. Thanks to this integration, they offer a very high attraction force, making them an ideal option for powerful and secure locking systems.

These magnetic and electromagnetic holders are especially suited for applications where short disconnection pulses may occur — that is, scenarios in which the door must remain securely closed during brief intervals when the system temporarily cuts electrical current.

Where can you find these magnetic holders?

The VM/ND series electromagnets can be used in a wide variety of door closures and mechanisms, making them very versatile:

• Sliding doors
• Fire or fire-rated doors
• Emergency exits or evacuation access points
• Automatic doors
• Doors in industrial facilities

These electromagnets can also be used for door locking on emergency exits, general access locations, or panic locks, as they ensure a high level of holding even under considerable forces.

Advantages of choosing the VM/ND Series

• High magnetic force: thanks to the neodymium magnets, the attraction is very strong, ensuring a firm lock.
• Reliability during brief power interruptions: ideal for installations where disconnection pulses may occur, keeping the door closed when needed.
• Versatility of use: suitable for different door types (sliding, automatic, fire-rated, emergency exits, etc.), making it a multipurpose solution.
• Adaptability: as a manufacturer, NAFSA can offer customized versions according to client requirements, whether for an office building, industrial facility, or special project.

Why trust NAFSA?

Our track record is built on experience, quality, and adaptability. We design and manufacture our own electromagnets and are certified under the ISO 9001:2015 standard.

Thanks to this, we can support the customer from selecting the right model to installation and commissioning, ensuring the solution fits the environment perfectly.

La entrada VM/ND series for door closing se publicó primero en Nafsa.

What are solenoid actuators for distribution switchgear?

Solenoid actuators for electrical distribution switchgears are electromagnetic devices integrated into the safety systems of medium and high-voltage installations. Their main function is to act as an automatic shutdown mechanism when the system detects any anomaly that may compromise the safety of the installation or personnel.

Unlike other passive protection systems, solenoid actuators provide an active and immediate response in risk situations, becoming the first line of defense against electrical failures, overloads, or any other abnormal condition.

How do solenoid actuators work in electrical distribution systems?

The operation of these solenoid actuators is very simple: when the switchgear monitoring and control systems detect an anomaly—whether it is an overload, a short circuit, a ground fault, or any other parameter outside normal values—they send an electrical signal to the solenoid.

This signal activates the solenoid immediately and, in turn, triggers the shutdown mechanism of the distribution cell. This process occurs in milliseconds, stopping the operation of the switchgear before the anomaly can cause further damage to the installation or pose a danger to people.

Response speed is one of the most important factors in these systems, as in medium and high-voltage installations, every second can make the difference between a minor incident and a serious accident.

Solenoid actuators in primary and secondary switchgear

Solenoid actuators for distribution switchgear can be found in different electrical installations:

• Primary distribution switchgear

In primary distribution networks, where high voltages are handled, solenoid actuators must meet very specific technical requirements. These installations require devices capable of withstanding harsh environmental conditions and providing reliable performance for years with minimal maintenance.

• Secondary distribution switchgear

Secondary distribution switchgear, although operating at lower voltages, also requires equally reliable protection systems. The solenoid actuators used in these cases are designed to integrate with the different types of modular switchgear on the market.

• Customized configurations

Every electrical installation has its specific characteristics, and at Nafsa we understand that there is no one-size-fits-all solution. That is why we offer multiple versions of solenoid actuators that can be adapted to virtually any type of distribution switchgear, regardless of the manufacturer or the specific design of the installation.

Why choose NAFSA?

Solenoid actuators for distribution switchgear are a safety investment that pays off from day one. Their ability to prevent accidents, protect equipment, and ensure the continuity of electric supply makes them essential components in any modern medium or high-voltage installation.

At Nafsa we have extensive experience in the development and manufacturing of solenoid actuators for industrial electrical applications. Our technical team is available to advise you on the selection of the most suitable actuator for your specific project, ensuring a solution perfectly adapted to your needs.

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If you’re looking to modernize the security of your company, warehouse, or building, it’s essential to know the main types of electromagnetic bolts available. Your choice will depend on how you prioritize security in case of a power outage.

1. Passive Security Bolts (Fail-Secure)

These are the preferred choice when access restriction is the top priority.

• The bolt is designed to remain closed and locked in the event of a power failure or outage.
• Used in high-security areas such as vaults, high-value storage rooms, or server rooms.
• Ensures that even without power, the door remains closed, maintaining the integrity of assets.

Most common passive security models: CU20/CP, ERC30/CP.

2. Active Security Bolts (Fail-Safe)

Essential for any evacuation plan or scenario involving human safety.

• The mechanism is designed to release the door and open automatically in the event of a power interruption.
• Used in emergency exits, evacuation routes, and any door that must ensure quick and safe egress in case of fire or general failure.
• Prioritizes human life, ensuring no one is trapped during an electrical emergency.

Most common active security models: ER30/CCR, CU20/CPXU, CU30/CP.

3. Bistable Bolts (Low Consumption)

The most efficient and versatile option in terms of energy management.

• They only require a short electrical pulse to change their state (from open to closed, or vice versa). Afterwards, they maintain that position without constant power.
• Commonly used in applications that seek to optimize energy consumption and where the bolt must remain in one state for long periods without continuous power supply.
• Significant reduction in energy use and lower heat generation.

Most common bistable bolts: CU20/CPB, ERB35-05/NDBCP.

4. Bolt Locks with Cut-Off Contacts

They add a layer of intelligence and feedback to your access control system.

• They include contacts that allow the system to monitor in real time whether the bolt is engaged and if the door is properly closed.
• Commonly used in Building Management Systems (BMS) and high-security environments where having digital confirmation of the door’s physical status is critical.
• They provide greater control and traceability over access, detecting tampering attempts or locking failures.

Choosing the right electromagnetic bolt is a key step to ensuring the safety of your facilities. The first step is to determine whether you need a Fail-Secure system (security priority) or a Fail-Safe system (evacuation priority) to implement a robust and compliant access control solution.

La entrada Types of electromagnetic locks se publicó primero en Nafsa.

What is a solenoid for emergency brakes?

A solenoid brake is an electromechanical component designed to apply or release a braking force quickly and in a controlled manner. Unlike a simple pull-type solenoid, its main function in these systems is to act as a “safety brake” or “emergency stop brake.”

Safety mechanism: the Fail-Safe principle

Most of our emergency brake solenoids operate under the principle of active safety or “Fail-Safe”:

1. Activation: the brake is applied through a mechanical mechanism (usually springs) that is always pressing or gripping the disc or rotating shaft.
2. Normal operation: when the system is powered and running, the solenoid is energized and generates a magnetic field that retracts or compresses the braking mechanism, allowing motion.
3. Failure or emergency: if a power outage occurs (or the emergency button is pressed, cutting the current), the solenoid de-energizes instantly. The magnetic force disappears, and the mechanical mechanism immediately applies the brake.

Result: The brake is automatically applied in the absence of power, ensuring that the machine stops immediately and safely.

Where we find these solenoids

Safety solenoids are essential in industries where a precise and immediate stop can prevent serious accidents and equipment damage:

• Elevators and lifting platforms: they are the vital component that ensures the cabin locks in place if the motor loses power.
• Cranes and hoists: they ensure the safe stopping of the load when lifting or lowering heavy materials.
• Machine tools: they ensure rapid motor braking in lathes, milling machines, and presses to protect the operator.
• Transport and logistics: they are used in braking systems of automated guided vehicles (AGVs) and conveyor belts.

As specialized manufacturers, at NAFSA we design solenoids with optimized characteristics for industrial braking. When people’s safety and the protection of your machinery depend on an immediate stop, there is no room for compromise. Emergency brake solenoids from NAFSA are your Fail-Safe reliability guarantee.

La entrada Solenoid for emergency brakes se publicó primero en Nafsa.

In this article, we explain what an IP rating is, how to interpret it, and why it is especially relevant in the case of solenoids. Additionally, we will look at a practical example with the ECM Series from NAFSA, which has an IP40 specification.

What is an IP Rating?

The term IP stands for Ingress Protection. It is an international standard defined by the IEC 60529 standard, which classifies the degree of protection provided by electrical enclosures against solids and liquids.

An IP rating consists of two digits:

• First digit (0–6): Indicates protection against dust and solid objects.
• Second digit (0–9): Indicates protection against water under various conditions (dripping, jets, immersion, etc.).

Why is the IP Rating Important for Solenoids?

Solenoids are used in demanding industrial environments, where environmental conditions can directly affect their performance and durability. The IP rating is crucial in the following cases:

• Dusty environments: such as food factories, automotive industries, or packaging lines.
• Areas with humidity or liquids: for example, in the medical industry, elevators, or process automation.
• Safety applications: where a failure in the solenoid could compromise access control or machinery protection.

Choosing a solenoid with the appropriate IP rating prevents breakdowns, reduces maintenance costs, and ensures safe and reliable operation in the long term.

NAFSA’s ECM Series with IP40

The ECM Series from NAFSA is an excellent example of a solenoid with an IP40 protection rating.

Main Features:

• Protection against solid objects larger than 1 mm (e.g., fine wires, metal shavings).
• Designed for applications where the risk of contact with water is low, but protection from dust and particles is necessary.
• Reliability and robustness for continuous industrial applications.

Where Can We Find the ECM Series?

• Industrial automation: production lines with suspended particles
• Sorting and vending systems: where precision and reliability are critical
• Access control: environments with dust or dirt, but without direct humidity

How to Choose the Right IP Rating for Your Project

When selecting a solenoid, you should not only consider the force, stroke, or size but also the IP rating you need. Some practical tips:

1. Analyze the work environment: Is there dust, metal shavings, or liquids present?
2. Define the level of requirement: Is it enough to protect against small solid objects (IP4X), or is water resistance needed (IP6X/IPX5 or higher)?
3. Consult experts: at NAFSA, we offer personalized advice to select the most suitable solenoid for your application.

The IP rating is a determining factor in the security, durability, and performance of solenoids in industrial environments. Models like the ECM Series from NAFSA (IP40) provide the necessary protection for applications with solid particles, ensuring reliability in sectors as diverse as automation, vending, or access control. At NAFSA, we have been working for over 25 years in the design and manufacture of custom solenoids, tailored to the needs of each sector.

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