RCDB Suspended Electromagnetic Iron Separator

RCDB Suspended Electromagnetic Iron Separator

In modern industrial production, ferrous impurities in materials don’t just compromise product quality—they also pose a serious threat to downstream equipment such as crushers, mills, and conveyor belts. The RCDB Series Suspended Electromagnetic Iron Separator is precisely the industrial “scavenger” and “equipment guardian” engineered to meet these challenges. Powered by a DC-excited electromagnetic field, this device “extracts iron from a distance,” accurately capturing and removing ferrous contaminants from non‑magnetic materials while ensuring both product purity and equipment safety.

I. RCDB Electromagnetic Separator: Dual Protection for Product Purification and Equipment Safety

The core value of the RCDB Electromagnetic Iron Remover lies in two critical functions:

 Material Purification: It effectively removes iron impurities from raw materials, improving product grade and purity. This is essential in ceramics, glass, food processing, chemicals, and other industries where contaminant‑free output is a must.

 Equipment Protection: Installed upstream of crushers, roller presses, and other key machinery, the RCDB prevents ferrous objects from damaging equipment and avoids longitudinal tearing of conveyor belts. It truly acts as a “protective shield” for crushing machinery.

II. Key Technical Advantages and Innovations

What sets the RCDB Series apart is its advanced core technology and robust construction.

1. Computer‑Optimized Magnetic Circuit – Deep Penetration & High Field Intensity

 The RCDB’s magnetic circuit is meticulously designed using computer simulation, resulting in an optimized field distribution, deep magnetic penetration, and a high gradient that ensures maximum pull even at substantial working gaps. The device reliably captures ferrous pieces ranging from 0.1 kg to 35 kg that are mixed in non‑magnetic materials, achieving an iron removal rate of over 95%. Whether fine iron filings or large mechanical scrap, the RCDB handles it with ease.

2. Fully Sealed Self‑Cooling Structure – Built for Harsh Conditions

 The RCDB series features a fully sealed, all‑welded steel housing. The coil and housing are bonded with vacuum‑poured epoxy resin adhesive, while the interior is cast with specialized electrical‑grade insulating resin, forming a completely sealed self‑cooling structure. This design provides excellent waterproofing, dustproofing, and corrosion resistance, allowing continuous and reliable operation even in the most demanding environments—such as mines, metallurgical plants, and high‑dust thermal power stations. With few potential failure points, maintenance is simple and cost‑effective.

3. Advanced Temperature Rise Control – Extended Service Life

 The RCDB incorporates state‑of‑the‑art temperature rise control technology. While keeping the ampere‑turns (I·N) constant, the number of coil turns is increased and the current density is reduced, significantly lowering heat generation. This effectively controls temperature rise and substantially extends the device’s service life. High‑performance insulating materials and magnesium oxide filler are also used, offering excellent insulation and heat dissipation. As a result, the RCDB achieves a remarkable 19.1% reduction in temperature rise, while its magnetic field intensity increases by 43% under hot operating conditions.

4. Broad Model Range and Super‑Strong Magnetic Options

 The RCDB series covers a wide range of models, accommodating belt widths from 300 mm to 2,000 mm with excitation power from 0.4 kW to 18 kW, ensuring a solution for virtually any production line. In addition, super‑strong magnetic variants that exceed standard specifications are available: T1 models deliver 90 mT, T2 models 120 mT, and T3 models a powerful 150 mT, meeting even the most demanding iron removal requirements.

Model	Belt Width (mm)	Suspension Height (h=mm)	Material Depth (≤mm)	Magnetic Intensity (≥mT)	Driving Power (≤Kw)	Belt speed	Operating mode	Weight (kg)	Appearance size(mm)
						≤ m/s			A	B	C
RCDB-4	400	120	70	50	0.6	4.5	continuous	250	500	240	280
RCDB-5	500	150	100	60	1			430	600	250	310
RCDB-6	600	180	130	63	1.6			580	610	270	340
RCDB-6.5	650	200	150	70	2			680	720	270	340
RCDB-8	800	250	200	70	3.6			950	960	275	335
RCDB-10	1000	300	250	70	5			1520	1200	320	420
RCDB-12	1200	350	300	70	6.8			2250	1400	370	470
RCDB-14	1400	400	350	70	9			2950	1650	405	500
RCDB-16	1600	450	400	70	13			4800	1900	460	560
RCDB-18	1800	500	450	70	18			6900	2150	570	630
RCDB-20	2000	500	500	70	20			7500	2300	580	680

5. Flexible Control and Automation Capabilities

 The RCDB offers flexible control options, supporting alternating operation of two separators or intermittent excitation to maintain cold‑state performance with stable, powerful magnetic pull. The system is compatible with PLC programming for automated, timed iron discharge. Optional features include audible alarms, coil temperature monitoring, and weighing devices that trigger priority discharge and an alarm when load limits are exceeded—fully meeting the needs of intelligent, modern production.

Installation & Maintenance

1. Mounting
Secure the dry type round suspended magnetic separator above your conveyor or feed system using the supplied brackets.
2. Electrical Hook-Up
Connect to your plant’s 220V/380V supply; no additional cooling circuit is required.
3. Startup
Power on via the intelligent control panel—system self-checks then enters ready mode.
4. Routine Checks
Inspect coil temperature and belt tension every 1,000 operating hours; minimal maintenance required thanks to automatic iron unloading.

 

III. Wide‑Ranging Industrial Applications

 With exceptional iron removal efficiency and a rugged design, the RCDB Series plays an indispensable role across many industries:

 - Coal Mining & Thermal Power Generation – Removes ferrous contaminants from dry coal and coke, protecting crushers and pulverizers.

- Metallurgy & Mining– Enhances iron removal and recovery in the beneficiation of iron ore, copper concentrate, and other minerals.

- Cement & Building Materials – Positioned upstream of roller presses and vertical mills to prevent damage and ensure stable production.

- Chemicals & Glass – Eliminates iron impurities from chemical and glass raw materials, improving final product purity.

- Ceramics & Refractory Materials – Screens out ferromagnetic substances from abrasives and refractories, guaranteeing finished product quality.

- Solid Waste Treatment & Environmental Protection – Recovers iron from domestic and industrial solid waste, supporting resource recycling.

- Food & Wood Processing – Removes iron contaminants from raw materials, ensuring food safety and wood product quality.

 

 IV. Market Outlook and Growth Trajectory

 As industrial automation advances and environmental regulations tighten worldwide, electromagnetic separation equipment continues to gain importance. The global electromagnetic overband separator market was valued at approximately USD 151 million in 2024 and is projected to reach USD 192 million by 2031, growing at a CAGR of 3.5%. The broader magnetic separator market was valued at USD 1.40 billion in 2025 and is expected to grow to USD 2.21 billion by 2032, at a CAGR of 6.69%. China, in particular, has been a rapidly growing market, and Chinese RCDB manufacturers have been actively expanding their overseas footprint across Southeast Asia, the Middle East, Europe, and the Americas.

In this evolving landscape, the RCDB series stands out by combining advanced fully sealed construction, computer‑optimized magnetic circuits, and superior temperature control. 

V. Why Choose the RCDB Suspended Electromagnetic Iron Separator?

 The RCDB Series represents the benchmark in industrial iron removal, offering:

 - Unmatched magnetic power – deep penetration and high gradient.

- A reliable fully sealed structure– waterproof, dustproof, and corrosion‑resistant.

- Advanced temperature rise control– long‑term, stable performance.

- Broad adaptability – fits a wide range of belt widths, material types, and environmental conditions.

- Flexible automation options – intelligent, low‑maintenance operation.