Precision-machined and reliable magnetic chucks solution
Our custom-produced magnetic chucks provide precise clamping solutions, ensuring superior stability and accuracy in your machining operations. I will unite the factory to manufacture rectangular and circular permanent magnetic chucks, electromagnetic release chucks and Sine Magnetic Chucks in various forms of Magnetic chucks.
Fully customizable magnetic chucks manufacturing
Circular Magnetic Chuck Diameter & Pole Pitch
Flexible custom diameter and pole pitch designs are available for circular magnetic chucks to meet specific machining requirements.
Rectangular magnetic chuck dimensions
Rectangular magnetic chucks are available with custom length, width and pole pitch, providing a variety of options for a variety of workpieces and applications.
Electromagnetic Chuck Pole Block Size
For electromagnetic magnetic chucks, we offer tailored pole block sizes to ensure optimal performance based on your machine's requirements.
Pole Distance Design
Starting from customer needs, the pole pitch of the magnetic chuck is adjusted during the production process to meet the clamping force and accuracy of the actual application.
Sine Magnetic Chuck Design for Angled Workpieces
Sine magnetic chucks are specially designed to hold workpieces at precise angles, ensuring accurate machining and grinding on inclined or angled surfaces.
Holding Force Customization
We offer custom holding force for all types of magnetic chucks, providing secure clamping to meet our customers' workload and precision requirements.
Choose us for your custom magnetic chuck for efficient processing
We not only produce simple conventional magnetic suction cups, but most importantly, we can tailor solutions according to the unique needs of our customers. We firmly believe that accuracy and reliability cannot be compromised in precision machining processes.
We have a fully integrated supply chain to ensure quality and cost-effectiveness with comprehensive and flexible manufacturing capabilities. Whether you need round, rectangular or special sine table magnetic chucks, with more than 20 years of expertise in the magnetic products industry, our dedicated team of engineers and experts will work hand in hand with you to ensure that every detail of the magnetic chuck meets your specific requirements.
Permanent magnetic chucks
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Magnetic ChuckParallel Pole Circular Grinding Rotary Magnetic Chuck
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Magnetic Chuck
Circular turning permanent magnetic chuck
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Magnetic Chuck
Square Hard Milling Permanent Magnetic Chuck
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Magnetic Chuck
Rectangular hard milling permanent magnetic chuck
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Electromagnetic chucks
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Magnetic Chuck
Rotary working electromagnetic chuck with radial pole layout
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Magnetic Chuck
Oval Poles grinding square electromagnetic chuck
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Choose Osencmag to provide reliable magnetic chucks for your precision machining.
Product quality assurance
We ensure that the manufacturing standards of our permanent and electromagnetic Magnetic Chucks are always consistent and undergo strict quality inspections throughout the production process to guarantee optimal performance and durability.
Competitive pricing
By leveraging our large network of trusted partners, we can offer competitive pricing without compromising quality, making bulk purchases and custom orders more cost-effective.
Fast lead times
The complete supply chain and our streamlined production processes guarantee fast turnaround times for magnetic chucks, meeting tight deadlines and maintaining the highest quality standards.
Tailor-made solutions
Our professional team provides fully customizable manufacturing solutions for magnetic chucks, including overall dimensions, pole pitch, holding force and design features to ensure compliance with customer-specific processing requirements.
Expert technical support
We provide professional technical support and consulting services to help you get effective guidance in the process of customizing various magnetic chuck types to optimize your processing performance.
Worldwide shipping
From secure packaging to selecting reliable international logistics, we ensure the timely and safe transportation of all magnetic chucks. Customized packaging is available when necessary to meet the needs of brand customers.
What is A Magnetic Chuck?
A magnetic chuck is a workpiece holding machine that uses magnetic force to replace vises, mechanical clamps and fixtures to hold workpieces during processing such as grinding, milling or turning. It has gradually replaced traditional mechanical clamping systems, making the process of installing machined parts faster, cleaner and more reliable. Allowing us to focus on the accuracy of machining without worrying about workpiece instability.
How do magnetic chucks work?
The magnetic chuck uses the principle of magnetism to keep the workpiece in the correct position during the work process. The chuck itself is equipped with a set of strong magnets or an electromagnetic system, depending on the type (permanent or electromagnetic). These magnets generate a magnetic field, and since the poles of the ferrous part are opposite to the polarity of the magnet, they attract each other. When the magnetic field is activated, it can be held in place by creating a polarity for the ferrous work material connecting its south and north poles, without any mechanical clamping.
- With a permanent magnetic chuck, the magnet inside the chuck always has a constant magnetic field, but its magnetic flux is locked inside the chuck when closed.
- For electromagnetic chucks, you can activate the magnetic chuck by turning the current on or off, and electromagnetic chucks can also control the magnetic field strength, providing more flexibility for workpieces of different sizes and shapes. Amplifying and controlling the magnetic flux is the key to applying magnetic chucks to metalworking operations.
When we need to fix the workpiece on the chuck table, just open the chuck and the magnet will align with the top plate. Magnetic flux will flow across the panel, and when the iron workpiece is placed on top, it will be locked by the magnetic flux. No physical pressure is applied to the workpiece material.
What are the advantages of using magnetic chuck?
There are many ways to hold steel workpieces during machining, such as carriage bolts, T-nuts, vise clamps, etc. But these external clamping tools have certain limitations to a greater or lesser extent. Using magnetic clamps has distinct advantages:
Reduce operational time:
Traditional clamping methods often require extensive, time-consuming adjustments. With magnetic chucks, instant magnetic clamping sets up workpieces in seconds. When processing multiple parts or when workpieces need to be changed quickly, feed rates can be increased by more than 3 times.
Versatile Operation:
Magnetic chucks can accommodate a wide range of workpiece sizes, making them ideal for a wide range of manufacturing functions: turning, grinding, palletizing, rotating and indexing, 4- and 5-axis, normal and heavy drilling, conventional milling, hard milling, wire cutting, EDM machines.
No interference:
Unlike traditional clamping, the magnetic chuck does not interfere with the workpiece and tools on the operating table, leaving more space for precision machining. Physical contact with the material is eliminated, ensuring there is no risk of damage or marring the workpiece surface.
Improve accuracy and precision:
Magnetic chucks ensure that your workpiece remains 100% aligned during machining, reducing the possibility of deformation, vibration or movement. Guarantee the tolerance range of the finished product and ensure higher precision.
Reduce risk of damage to workpieces:
Reduce the risk of workpiece deformation or surface damage with the evenly distributed magnetic clamping force of the magnetic chuck. This is especially important when machining high-value materials or precision parts that require high-quality surface treatment.
Long-term cost-effectiveness:
While magnetic chucks have a slightly higher initial investment, over time they can lead to cost savings by reducing installation time and increasing productivity. Additionally, the need for conventional consumable fixtures is eliminated, reducing additional expense.
Keep it tidy:
Magnetic chucks do not involve physical clamping, so there is no need for oil, grease and other substances that could contaminate the workspace or workpiece.
Flexible adsorption:
When clamping, all 5 sides of the workpiece can be contacted in one setup, eliminating the need to stop and reposition, increasing work flexibility.
Powerful Operational Protection:
Magnetic chucks offer a universal clamping solution for workpieces of all sizes. Our magnetic chucks are simple to operate and highly reliable with permanent, electro-permanent and electromagnetic options, ensuring consistent clamping at all times.
Application of magnetic chuck.
Precision Grinding
Magnetic chucks for grinding are used to hold workpieces during flat and cylindrical grinding. It ensures stable clamping of ferromagnetic workpieces, prevents deformation during high-speed grinding, and ensures parallelism, flatness and high surface finish of precision grinding processes.
Electrical Discharge Machining (EDM)
For EDM processes, magnetic chucks provide a stable, non-intrusive clamping method. Its precise clamping capabilities enable complex and detailed material processing without distorting delicate workpieces, which is critical in high-precision, small-scale manufacturing tasks.
Milling Operations
In milling operations, magnetic chucks easily mount ferrous materials, improve accuracy, and reduce setup time. Uniform and ultra-strong magnetic force distribution prevents workpiece displacement, ensuring stable, accurate cutting even on complex shapes and large parts.
Turning and lathe work
Magnetic chucks are ideal for holding large diameter and short length workpieces during lathe turning operations. Electromagnetic chucks allow the addition of additional chuck blocks as needed, for more consistent and accurate machining.
Sheet Metal Processing
Magnetic chucks are also used in sheet metal applications where thin sheets of metal need to be securely held. They prevent materials from warping or shifting during cutting, bending or welding, resulting in more consistent, precise results.
Application of magnetic chuck.
Magnetic chucks are available in round, square and rectangular shapes, each with specific functional benefits.
Round Magnetic Chucks
Round magnetic chucks are designed for use in machining processes where the workpiece must be rotated (e.g. lathe machining, grinding and polishing operations). They are capable of holding cylindrical or round workpieces such as discs, shafts and other rotationally symmetrical components during high-speed operations.
Rectangular Magnetic Chucks
This magnetic chuck is rectangular and flat and is very versatile. Its flat rectangular shape provides a large contact surface and is primarily used in a variety of metalworking operations such as grinding, milling and EDM.
Square Magnetic Chucks
Square magnetic chucks are similar to rectangular magnetic chuck types and are designed for precise clamping of square or angled workpieces. Its symmetrical design provides consistent magnetic force in all directions, making it particularly suitable for applications that require uniform clamping in all directions.
Pricing Factors of Magnetic Chucks.
Novices must have encountered various prices in the market when purchasing magnetic chucks for machining. Some models are surprisingly affordable, while others are much more expensive. Why? Because not all magnetic chucks are the same. After following me to understand the 4 key factors that affect pricing, I believe you will have a clear concept of the cost of magnetic chucks.
Magnetic Materials
As we mentioned above, the operating core of every magnetic chuck originates from magnets. Whether the suction cup uses permanent magnets or electromagnetic systems directly affects its performance and cost.
- Neodymium magnetic core: Using high-grade neodymium magnets as the core of the chuck is the most powerful choice for permanent magnet chucks, which can provide strong holding power even when facing thin workpieces. However, the higher the magnetic grade of neodymium magnets, the more expensive it is. For example, a magnetic chuck made with N52 magnets is much more expensive than an N48 magnetic chuck. NdFeB prices can change even when supply of raw materials fluctuates.
- Electromagnetic chuck: Electromagnetic chucks have adjustable holding force and are widely used. However, additional components such as power supplies and control units need to be incorporated during the manufacturing assembly process, increasing the initial cost.
Chuck surface plate material
Don’t think that the top surface of the magnetic suction cup is just an ordinary metal plate. It is an important medium for the chuck to ensure that the magnetic field is effectively transmitted. Its material and surface treatment will affect the performance and service life of the magnetic chuck.
- Hardened steel plate: Most high-quality chucks use high-grade steel that is resistant to wear and deformation. Although the cost is increased, it can ensure a longer service life in high-speed grinding or milling operations.
- Standard steel and stainless steel: Standard steel plates are suitable for many applications, but the chuck surface plate combined with stainless steel has better corrosion resistance, especially in wet processing environments.
In addition, the chuck surface that has been precisely ground and hardened can enhance magnetic contact and improve grip. Although these additional processing steps increase cost, they ensure greater accuracy and stability.
Size and custom size
Chuck size is an important factor in pricing. The larger the length, width and thickness of the magnetic chuck, the longer the magnetic materials, steel and processing time are invested, and the price is higher.
In the case of using the same materials, standard size chucks will be more affordable because the manufacturer already has mature production configuration facilities. If you need a specific size for a special application, the price of custom manufacturing will be higher (you can contact us to achieve economical and reliable custom production with Osencmag’s complete supply chain).
Special functions and structural complexity
In some special processing and application areas, magnetic chucks need special designs. For example: chuck system, sine table structure, special magnet design, etc. Click to learn more about the magnetic chuck structure.
- Sine table magnetic chuck: designed for grinding or milling that requires specific angle positioning, and can be tilted.
- Magnetic pole design: The magnetic pole configuration determines the chuck’s ability to hold the workpiece. Thin Pole Pitch chucks provide a more uniform magnetic field and are ideal for thin, small parts—but require more complex magnet placement during production, resulting in increased costs.
- Electro-permanent magnetic chucks: These chucks combine permanent magnetic structures and electromagnetic systems to provide adjustable strength and flexibility. Its added control mechanisms come at additional cost.
It is recommended that you only pay for these advanced features if they can improve your workflow, otherwise a regular magnetic chuck will be more cost-effective.
Understanding these magnetic chuck pricing factors above ensures that you don’t spend too much on unnecessary features or sacrifice essential quality for the sake of low price.
We understand that customers’ purchase of magnetic chucks is an investment in manufacturing efficiency. That’s why we can tailor it to our customers’ needs. Whether you require a standard model or a high-precision custom chuck, we can provide a cost-effective, high-performance solution that meets your processing needs. Contact us today without unnecessary markups.
How do We Verify the Quality of Magnetic Chucks?
When you decide to invest in magnetic chucks, you will definitely consider the reliability of their quality. After all, these tools need to securely hold workpieces while performing precision machining tasks. If the quality is not up to standard, you may face the risk of workpiece tolerance mismatch, slippage, or even part damage. We are well aware of our customers’ pain points, so we strictly require the production line to take the following multiple inspection steps during the manufacturing process to ensure that every magnetic chuck delivered is up to standard.
Magnetic holding force test
The holding force is the core of the magnetic chuck. Without a reliable magnetic field, the workpiece can easily slip during processing, resulting in poor quality or damage.
Before assembly, we check the holding strength of the original magnets. After assembly, the completed chuck is tested to confirm that it provides consistent magnetic force across the entire surface. If deviations from the target required magnetic suction force are found, we will immediately adjust the magnet configuration or surface alignment.
Material testing
The strength of a magnetic chuck comes not only from the magnets, but also from the manufacturing materials (steel, aluminum alloy or stainless steel) used in its structural parts and panels. For electromagnetic chucks, we verify that the coil material meets standards, ensuring reliable power supply and minimal energy loss.
By testing the magnet block and structural materials of the magnetic chuck, it is possible to ensure that its durability, corrosion resistance and mechanical strength meet standards to help customers cope with the complex environment during actual work.
Salt fog test
To test a magnetic chuck’s ability to withstand moisture or corrosive environments, we expose the chuck to a salt spray test chamber for an extended period of time. Inspect the chuck after testing for signs of rust, peeling, or coating deterioration. Ensure the magnetic chuck can withstand extreme environments, especially when used in wet processing environments.
Surface treatment inspection
Improper surface treatment of the magnetic chuck may result in poor adhesion, uneven magnetic distribution or premature wear. So we pay close attention to every detail during the surface treatment process, such as whether the surface grinding and finishing is smooth and consistent, and whether the anti-corrosion coating (such as nickel plating or epoxy coating) is even and thick enough to protect the surface without affecting the magnetism.
Final check
Before the magnetic chuck leaves our factory, we perform a final round of inspection to ensure it is ready to leave. Included:
- Dimensional Tolerances: We verify that the chuck meets customer specified dimensional and accuracy tolerances.
- Magnetic poles: Verify that the magnetic poles are properly aligned to ensure even retention.
- Electromagnetic Function: We check coil performance for electromagnetic chucks and ensure the chuck is properly engaged and disengaged.
- Packaging: Ensure that the chuck is securely packaged to prevent any damage during transportation.
Osencmag has always regarded quality as the core of all its activities. We treat every magnetic chuck seriously, whether the customer is dealing with high-precision grinding, milling or heavy workpieces, we can ensure the reliability of the product. Need a custom solution? Contact us today.
Where can I buy high-quality Magnetic Chucks in bulk?
Many of our customers don’t know where to look when they first purchase magnetic chucks. They are not sure which channel’s magnetic chucks can meet their needs. Today, I will take the opportunity to clarify the doubts of this group of people who are interested in purchasing magnetic chucks. I hope it will be helpful to everyone.
- For friends who are trying magnetic chucks for the first time or buying a single simple chuck, you can purchase through online marketplaces (such as Alibaba and Made-in-China.com). Usually there is a wide variety of products to choose from on such platforms, and it is easy to compare prices. However, the reliability of providers on these platforms varies. Especially for newbies, it’s hard to know who to trust if they don’t know how to choose.
- If you need fast delivery, a local distributor may be a good option. But the disadvantage of choosing local distributors is that they cannot provide deep customization, and their prices may be inflated due to the extra layers in the supply chain. Furthermore, their professionalism is limited and the necessary technical support may be slightly lacking.
- You can also contact the manufacturer directly – this is often the most cost-effective way to purchase in bulk. However, each manufacturer has its own specific areas of expertise. If your needs are more complex, you will need to contact multiple manufacturers for collaborative production. Even some small factories do not have the capability of custom development.
Why trust Osencmag for bulk magnetic chuck purchases?
Osencmag deeply understands the various challenges that customers face when purchasing magnetic chucks. With twenty years of experience in the magnetic industry and accumulation of supply chain resources. We have cooperated with many self-employed individuals, bulk purchasers, and dealers to provide customization and bulk manufacturing services. Customer feedback is also very positive. Whether you need bulk purchases or specific single deep customization needs. I will work with many partners behind me to manufacture you the highest quality electromagnetic, electromagnetic and permanent magnet chucks for grinding, machining, milling, turning, EDM and other machining applications. All chucks are designed with parallel spaced top plates to ensure high precision and safety. Contact us today and let us help take your machining operation to the next level.
FAQs about Magnetic Chucks
Are there discounts for bulk orders of Magnetic Chucks?
Of course! We offer competitive discounts on bulk orders based on quantity and level of customization. Large orders allow our factory to optimize production and reduce costs, and we pass the savings on to you.
What is the lead time for customized Magnetic Chucks?
Delivery times vary depending on design complexity and order size. Standard customizations typically take 2-4 weeks, while highly specialized designs may take longer due to material sourcing and precision machining. We insist that quality is the prerequisite for efficiency. Need a faster turnaround time? Please tell our salesperson – we will help you plan the production schedule as much as possible.
Do you have a warranty on your magnetic chucks?
All magnetic chucks we provide are backed by a one-year warranty under non-artificial damage conditions. If any problems arise, we provide fast response, replacement or repair.
Do you support OEM and private label?
We provide OEM manufacturing to all customers to help strengthen our customers’ brand influence. Includes custom logo, packaging and unique specifications.
