TAP(N) permanent magnet magnetic drum

Eddy current sorting line

In brief

• The TAP(N) permanent magnet magnetic drum automatically extracts ferromagnetic items from production lines.
• It is used in quarries, cement plants and recycling industries.
• It handles ferromagnetic items from 1 to 500 mm and runs 24/7 with no power consumption, in a Type A (agitator) or Type CC (crossed fields) version.

permanent magnet, Separator

• Fields of application
• Operating principles
• Operating recommendations
• General characteristics
• Case studies

Fields of application

Why choose our TAP(N) permanent magnet magnetic drum?

The TAP(N) permanent magnet magnetic drum effectively protects your production lines and optimises the purity of your materials in:

• quarries
• cement plants
• recycling industries

This industrial magnetic drum automatically extracts ferromagnetic items from 1 to 500 mm, running 24/7 with no power consumption to prevent costly production stoppages and damage to downstream equipment.

Operating principles

This TAP(N) permanent magnet magnetic drum provides efficient magnetic separation on all types of granular flows and is fully suited to the constraints of heavy industrial installations. 3-step magnetic separation process:

• Instant attraction: The material flow is fed by conveyor onto the rotating drum. The permanent magnets instantly attract the ferromagnetic items, which adhere to the surface.
• Secured: The ferrous items are carried along the magnetic arc by the rotation of the drum.
• Automatic discharge: Beyond the magnetic influence zone, the ferrous items automatically drop off into a separate collection chute, while the non-magnetic materials continue along their natural trajectory.

Available magnetisation technologies

• Type A (Agitator): Alternating magnetic fields create a tumbling effect to release trapped particles.
• Type CC (Crossed Fields): Crossing magnetic fluxes to handle heavy pieces and ensure uniform cleaning of the material to be processed.

Operating recommendations

Recommendations from our Lenoir-Mec experts for your TAP(N) permanent magnet magnetic drum:

• Strategic positioning: Position the magnetic drum with a drop height limited to 500 mm and a feed point no more than 100-150 mm from the surface to ensure optimal attraction of fine particles.
• Precise calibration: Carry out an adjustment with reference ferromagnetic samples to define the optimal magnet position according to the particle size of your materials.
• Preventive maintenance: Check the surface condition of the drum, clean off magnetic build-up and inspect the anti-abrasion linings

General characteristics

Technical specifications of the TAP(N) magnetic drum

• High-performance magnetisation: Ferrite magnets (low flux density) for standard applications or neodymium magnets (high flux density) for fine and weakly magnetic particles, resistant to harsh industrial environments.
• Precision adjustment: Adjustable magnet positioning for optimised discharge according to the application, allowing adaptation to different material particle sizes.
• Robust geared motor: Through-shaft drive with integrated anti-rotation system, designed for continuous industrial operating conditions.
• Simplified maintenance: Easy access for cleaning and servicing, interchangeable coils and no critical wear parts.

Specialised technical options

• Anti-abrasion lining Métaline (2 mm) or rubber (6 mm) for aggressive materials
• ATEX 22 Ex II 3D certification for explosive atmospheres
• High-temperature version (>120°C) with specially treated magnets
• Stainless steel side guides 3 mm for precise flow guidance

Advantages

• Proven magnetic performance
• Robust, durable design ensuring a long service life
• Minimal maintenance: Simple, reliable system reducing interventions and operating costs

Services

• Industrial commissioning assistance
• Spare parts stock
• Installed base monitoring and periodic performance checks
• Rapid after-sales service response

Frequently asked questions

What applications is the TAP(N) magnetic drum designed for?

It protects production lines and optimises material purity in quarries, cement plants and recycling industries. It automatically extracts ferromagnetic items from 1 to 500 mm, 24/7 and with no power consumption.

How does the TAP(N) work?

The flow arrives by conveyor on the rotating drum and the permanent magnets attract the ferromagnetic items, which are carried along the magnetic arc. Beyond the magnetic influence zone, they drop off into a separate chute, while the non-magnetic materials follow their trajectory.

What magnetisation technologies are available on the TAP(N)?

Type A (Agitator) creates a tumbling effect using alternating magnetic fields to release trapped particles. Type CC (Crossed Fields) crosses the magnetic fluxes to handle heavy pieces with uniform cleaning. The magnets are ferrite, or neodymium for fine and weakly magnetic particles.

What options does the TAP(N) offer?

The options are a Métaline (2 mm) or rubber (6 mm) anti-abrasion lining, ATEX 22 Ex II 3D certification, a high-temperature version (above 120°C) and 3 mm stainless steel side guides.

How should the TAP(N) be positioned and maintained?

The drop height must be limited to 500 mm and the feed point placed no more than 100-150 mm from the surface. Maintenance consists of checking the surface condition of the drum, cleaning off magnetic build-up and inspecting the anti-abrasion linings.

Technical data

Diameter Ø (mm)	Motor (kW)	Speed (rpm)
204 (série 20)	0,25 / 0,37	40
323,9 (série 31)	0,25 / 0,37	35
406,4 (série 40)	0,37 / 0,55	35
508 (série 50)	0,55 / 0,75	30
609,6 (série 63)	0,75 / 1,1	25

Reference	Flow rate (m³/h)	Weight (kg)	Active width L (mm)
TAP(N) 20/25	4	30	250
TAP(N) 20/36	5	42	365
TAP(N) 20/41	6	48	415
TAP(N) 20/46	7	55	465
TAP(N) 20/56	8,5	61	565
TAP(N) 20/61	10	73	615
TAP(N) 20/71	11,5	86	715
TAP(N) 20/86	13	99	865
TAP(N) 20/101	14,5	113	1015
TAP(N) 20/116	18,5	137	1165
TAP(N) 31/36	19	80	365
TAP(N) 31/41	22	85	415
TAP(N) 31/46	24	90	465
TAP(N) 31/56	30	101	565
TAP(N) 31/61	32	106	615
TAP(N) 31/71	37	117	715
TAP(N) 31/86	45	133	865
TAP(N) 31/101	53	148	1015
TAP(N) 31/116	60	164	1165
TAP(N) 40/36	34	104	365
TAP(N) 40/41	40	111	415
TAP(N) 40/46	43	117	465
TAP(N) 40/56	50	131	565
TAP(N) 40/61	57	137	615
TAP(N) 40/71	66	150	715
TAP(N) 40/86	80	170	865
TAP(N) 40/101	94	190	1015
TAP(N) 40/116	108	210	1165
TAP(N) 50/46	66	154	465
TAP(N) 50/56	80	170	565
TAP(N) 50/61	88	190	615
TAP(N) 50/71	100	217	715
TAP(N) 50/86	122	254	865
TAP(N) 50/101	144	282	1015
TAP(N) 50/116	165	323	1165
TAP(N) 50/136	195	367	1365
TAP(N) 50/146	208	394	1465
TAP(N) 50/166	238	425	1665
TAP(N) 63/61	110	301	615
TAP(N) 63/71	127	351	715
TAP(N) 63/86	154	412	865
TAP(N) 63/101	180	457	1015
TAP(N) 63/116	208	525	1165
TAP(N) 63/136	240	605	1365
TAP(N) 63/146	260	629	1465
TAP(N) 63/166	400	759	1665
TAP(N) 63/186	440	905	1865