Permanent Magnetic Lifting Manufacturers

Permanent Magnetic Lifting – Engineered for Safe, Efficient Ferrous Handling

As a Permanent Magnetic Lifting manufacturer, we match product configuration to the application, operating limits, interfaces and acceptance criteria defined for each project.

As a dedicated Permanent Magnetic Lifting manufacturer and supplier, Hangzhou Giant Lift Co., Ltd. designs and produces a complete range of permanent magnetic lifters for steel plate, pipe, block, and heavy-duty scrap handling. Our lifters use high-energy neodymium-iron-boron magnets to deliver strong, consistent holding force without external power, making them ideal for workshops, fabrication lines, warehouses, and recycling yards. With over 20 years of export experience and a factory in Hangzhou, we support OEM/ODM projects and provide standardized models that meet international safety expectations.

Our range includes the PML-A standard lifter, PML-B for steel pipes, PML-C advanced model, PML-H for steel plates, MW5 heavy-duty lifter, and the newer PML-L and PML-I series. Each type is engineered for specific load shapes and working conditions, ensuring you get a lifting tool that matches your material flow and safety requirements.

Our Product Range and Application Fit

We offer seven distinct permanent magnetic lifter series, each designed for a particular set of lifting tasks. The table below summarizes the key characteristics and typical uses of each model.

Our lifters are available in capacities from a few hundred kilograms up to several tons, and we can customize the magnet footprint, handle design, and safety release mechanism to suit your specific lifting points and load dimensions.

Technical Advantages and Performance Analysis

Permanent magnetic lifters offer distinct advantages over electric or vacuum lifters: they require no power supply, have no moving parts in the magnetic circuit, and provide instant engagement and release. Our designs incorporate a high safety factor, typically 3:1, and are tested to ensure the rated load is held even with a small air gap—a critical feature when lifting slightly curved or uneven steel surfaces.

The chart above compares key performance metrics for a typical 1000 kg PML-A lifter. The holding force is rated at 10 kN, but our safety factor of 3:1 means the actual breakaway force is around 30 kN, providing a wide margin for dynamic loads and surface irregularities. The air gap tolerance of up to 2 mm ensures that even slightly warped plates are held securely, reducing the risk of slippage. The lifter's weight is kept low (around 30 kg) to minimize operator fatigue and allow easy positioning. These figures demonstrate why our lifters are favored in environments where reliability and safety are non-negotiable.

Working Principle and Structural Design

Our permanent magnetic lifters use a unique magnetic circuit that can be switched on and off mechanically. Inside the housing, a set of neodymium magnets is arranged in a U-shaped configuration. When the handle is turned to the "on" position, the magnets align to direct the magnetic flux through the bottom plate and into the load, creating a strong holding force. Turning the handle to "off" re-routes the flux internally, effectively canceling the external field and releasing the load. This design requires no electricity and has no coils or wires, making it inherently explosion-proof and suitable for hazardous environments.

The housing is made of high-strength steel, and the bottom plate is precision-ground to ensure maximum contact with the load. All lifting eyes and handles are rated for the full capacity, and each unit is individually tested before shipment. The mechanical switch is designed for long service life, with a positive stop to prevent accidental release.

Application Scenarios and Industry Fit

Our permanent magnetic lifters are used across a wide range of industries:

• Metalworking and fabrication: Lifting steel plates, sheets, and structural beams during cutting, welding, and assembly.
• Warehousing and logistics: Moving steel coils, bars, and sheets in storage and distribution centers.
• Construction: Handling steel reinforcement, beams, and columns at job sites.
• Shipbuilding and heavy engineering: Positioning large steel sections and plates.
• Scrap metal recycling: Lifting and transporting ferrous scrap, ingots, and billets.
• Maintenance and repair: Lifting machinery parts and steel components in workshops.

Each application has unique requirements. For example, steel pipe handling benefits from the PML-B's air gap feature, which compensates for the curvature of the pipe. Heavy-duty scrap handling requires the robust construction of the MW5, which can withstand impact and rough use. Our team can help you select the right model based on your material type, weight, and lifting frequency.

Configuration Options and Customization

We understand that off-the-shelf lifters may not fit every operation. That's why we offer several configuration options:

• Capacity: From 100 kg to 10,000 kg, with custom capacities available.
• Magnet footprint: We can adjust the length and width of the magnetic face to match your load dimensions.
• Handle type: Choose from standard lever, T-handle, or remote release options.
• Safety features: Add overload indicators, safety locks, or dual-magnet systems for extra security.
• Mounting: Options for fixed eye, swivel eye, or hook suspension to integrate with your existing crane or hoist.

For OEM projects, we can produce lifters with your branding, custom packaging, and specific documentation. Our engineering team works closely with you to ensure the final product meets your exact specifications.

Quality Assurance and Testing

Quality is built into every stage of production. We use high-grade neodymium magnets sourced from certified suppliers, and each lifter undergoes rigorous testing:

• Magnetic force verification: Each unit is tested to ensure it holds at least 3 times its rated load.
• Air gap test: We simulate real-world conditions with a small air gap to confirm reliable holding.
• Durability test: The switch mechanism is cycled thousands of times to ensure long-term reliability.
• Visual and dimensional inspection: Every unit is checked for surface finish, weld quality, and dimensional accuracy.

Our factory is equipped with advanced testing equipment, including load testing machines and hardness testers, to verify performance. We also provide test certificates and inspection reports with each shipment, giving you full traceability.

Information We Use to Configure Your Solution

To prepare an accurate proposal, we need the following details about your application:

• Load weight and dimensions: The maximum weight and shape of the materials you need to lift.
• Material type: Steel grade, surface condition (e.g., painted, oily, rusty), and thickness.
• Lifting frequency: How many lifts per hour or per day.
• Environment: Indoor/outdoor, temperature range, humidity, and any exposure to dust or chemicals.
• Existing equipment: The crane or hoist you plan to use with the lifter, including hook size and lifting height.
• Safety requirements: Any specific standards or certifications required for your market.

With this information, we can recommend the right model, capacity, and configuration, and provide a detailed quotation with delivery time.

Why Choose Hangzhou Giant Lift Co., Ltd.?

Since 1999, we have grown from a sales department into a comprehensive manufacturer with our own R&D, quality control, and production facilities. Our team has over 20 years of experience in the lifting industry, and our products are exported to more than 50 countries. We are not just a supplier; we are a partner who understands the demands of industrial lifting. Our factory in Hangzhou is equipped with modern machinery and testing equipment, ensuring consistent quality and on-time delivery. We also offer OEM/ODM services, allowing you to build your own brand with confidence.

Frequently Asked Questions