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SM 19x225 [2xM6] / N50 - magnetic separator

magnetic separator

Catalog no 130241

GTIN/EAN: 5906301812708

5.00

Diameter Ø

19 mm [±1 mm]

Height

225 mm [±1 mm]

Weight

0.01 g

Magnetic Flux

~ 12 000 Gauss [±5%]

492.00 with VAT / pcs + price for transport

400.00 ZŁ net + 23% VAT / pcs

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Technical data of the product - SM 19x225 [2xM6] / N50 - magnetic separator

Specification / characteristics - SM 19x225 [2xM6] / N50 - magnetic separator

properties
properties values
Cat. no. 130241
GTIN/EAN 5906301812708
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Diameter Ø 19 mm [±1 mm]
Height 225 mm [±1 mm]
Weight 0.01 g
Material Type Stainless steel AISI 304 / A2
Magnetic Flux ~ 12 000 Gauss [±5%]
Size/Mount Quantity 2xM6
Polarity circumferential - 12 poles
Casing Tube Thickness 0.5 mm
Manufacturing Tolerance ±1 mm

Magnetic properties of material N50

Specification / characteristics SM 19x225 [2xM6] / N50 - magnetic separator
properties values units
remenance Br [min. - max.] ? 14-14.6 kGs
remenance Br [min. - max.] ? 1400-1460 mT
coercivity bHc ? 10.8-12.5 kOe
coercivity bHc ? 860-995 kA/m
actual internal force iHc ≥ 12 kOe
actual internal force iHc ≥ 955 kA/m
energy density [min. - max.] ? 47-51 BH max MGOe
energy density [min. - max.] ? 374-406 BH max KJ/m
max. temperature ? ≤ 80 °C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C

Physical properties of sintered neodymium magnets Nd2Fe14B at 20°C
properties values units
Vickers hardness ≥550 Hv
Density ≥7.4 g/cm3
Curie Temperature TC 312 - 380 °C
Curie Temperature TF 593 - 716 °F
Specific resistance 150 μΩ⋅cm
Bending strength 250 MPa
Compressive strength 1000~1100 MPa
Thermal expansion parallel (∥) to orientation (M) (3-4) x 10-6 °C-1
Thermal expansion perpendicular (⊥) to orientation (M) -(1-3) x 10-6 °C-1
Young's modulus 1.7 x 104 kg/mm²

Table 1: Rod construction
SM 19x225 [2xM6] / N50

Parameter Value Description / Unit
Diameter (Ø) 19 mm
Total length 225 mm (L)
Active length 189 mm
Section count 8 modules
Dead zone 36 mm (2x 18mm starter)
Weight (est.) ~485 g
Active area 113 cm² (Area)
Housing material AISI 304 1.4301 (Inox)
Surface finish Ra < 0.8 µm Polished
Temp. class 80°C Standard (N)
Force loss (at max °C) -12.8% Reversible loss (physics)
Force (calculated) 20.8 kg (theor.)
Induction (surface) ~12 000 Gauss (Max)

Chart 2: Field profile (8 sections)

Chart 3: Temperature performance

Technical specification and ecology
Material specification
iron (Fe) 64% – 68%
neodymium (Nd) 29% – 32%
boron (B) 1.1% – 1.2%
dysprosium (Dy) 0.5% – 2.0%
coating (Ni-Cu-Ni) < 0.05%
Sustainability
recyclability (EoL) 100%
recycled raw materials ~10% (pre-cons)
carbon footprint low / zredukowany
waste code (EWC) 16 02 16
Safety card (GPSR)
responsible entity
Dhit sp. z o.o.
ul. Kościuszki 6A, 05-850 Ożarów Mazowiecki
tel: +48 22 499 98 98 | e-mail: bok@dhit.pl
batch number/type
id: 130241-2026
Measurement Calculator
Pulling force

Magnetic Field

Other proposals

It is the "heart" of every magnetic filter used in industry for cleaning raw materials. It is mounted in chutes, hoppers, and pipelines to protect production machines from failure. High magnetic induction on the surface allows catching the finest iron particles.
The outer layer is hygienic acid-resistant steel, approved for food contact. The core is a precise magnetic system generating high induction (Gauss). Such construction ensures full resistance to corrosion, water, oils, and acids.
Metal contaminants are strongly attracted, so removing them with a bare hand or glove can be difficult. We recommend sticking packing tape to the cluster of filings and tearing it off together with the contaminants. For easier operation, it is worth considering ordering a rod in a version with a cleaning sleeve.
The more Gauss, the smaller and more weakly magnetic particles will be effectively caught. The economical version (8kGs) handles large pieces of metal perfectly. High Power versions (~12000-14000 Gs) are necessary for catching metallic dust, oxides, and stainless steel after processing.
We can produce a rod of non-standard length with any mounting termination. The rod end is strictly adapted to the fastening system in your device. We ensure fast realization of special orders and technical advice.

Pros and cons of neodymium magnets.

Benefits

Besides their exceptional magnetic power, neodymium magnets offer the following advantages:
  • Their power remains stable, and after around 10 years it decreases only by ~1% (theoretically),
  • They are resistant to demagnetization induced by external disturbances,
  • The use of an metallic coating of noble metals (nickel, gold, silver) causes the element to have aesthetics,
  • The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
  • Through (appropriate) combination of ingredients, they can achieve high thermal strength, allowing for action at temperatures approaching 230°C and above...
  • Possibility of custom creating and modifying to concrete conditions,
  • Versatile presence in advanced technology sectors – they are utilized in magnetic memories, brushless drives, medical equipment, also multitasking production systems.
  • Thanks to their power density, small magnets offer high operating force, in miniature format,

Disadvantages

Characteristics of disadvantages of neodymium magnets and ways of using them
  • To avoid cracks upon strong impacts, we recommend using special steel housings. Such a solution secures the magnet and simultaneously improves its durability.
  • Neodymium magnets demagnetize when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of power (a factor is the shape and dimensions of the magnet). We offer magnets specially adapted to work at temperatures up to 230°C marked [AH], which are very resistant to heat
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as magnets in rubber or plastics, which secure oxidation and corrosion.
  • Limited possibility of creating threads in the magnet and complex shapes - preferred is a housing - mounting mechanism.
  • Health risk related to microscopic parts of magnets pose a threat, if swallowed, which is particularly important in the context of child health protection. Additionally, small components of these magnets are able to disrupt the diagnostic process medical when they are in the body.
  • With budget limitations the cost of neodymium magnets is economically unviable,

Holding force characteristics

Optimal lifting capacity of a neodymium magnetwhat it depends on?

Information about lifting capacity was determined for ideal contact conditions, assuming:
  • using a plate made of mild steel, acting as a circuit closing element
  • with a cross-section no less than 10 mm
  • with a plane free of scratches
  • with zero gap (without paint)
  • under axial application of breakaway force (90-degree angle)
  • at room temperature

Practical aspects of lifting capacity – factors

Holding efficiency is affected by specific conditions, such as (from priority):
  • Space between surfaces – every millimeter of separation (caused e.g. by veneer or dirt) diminishes the pulling force, often by half at just 0.5 mm.
  • Force direction – remember that the magnet has greatest strength perpendicularly. Under shear forces, the holding force drops significantly, often to levels of 20-30% of the nominal value.
  • Metal thickness – thin material does not allow full use of the magnet. Magnetic flux penetrates through instead of generating force.
  • Metal type – not every steel attracts identically. Alloy additives worsen the interaction with the magnet.
  • Smoothness – ideal contact is possible only on polished steel. Rough texture reduce the real contact area, reducing force.
  • Temperature influence – hot environment reduces magnetic field. Too high temperature can permanently damage the magnet.

Holding force was checked on a smooth steel plate of 20 mm thickness, when the force acted perpendicularly, in contrast under shearing force the holding force is lower. In addition, even a minimal clearance between the magnet’s surface and the plate lowers the lifting capacity.

Warnings
Product not for children

Strictly store magnets away from children. Risk of swallowing is high, and the consequences of magnets clamping inside the body are life-threatening.

Thermal limits

Standard neodymium magnets (grade N) lose power when the temperature goes above 80°C. Damage is permanent.

Caution required

Before starting, check safety instructions. Sudden snapping can destroy the magnet or injure your hand. Think ahead.

Bone fractures

Protect your hands. Two large magnets will join immediately with a force of massive weight, destroying everything in their path. Be careful!

Risk of cracking

NdFeB magnets are sintered ceramics, which means they are prone to chipping. Clashing of two magnets leads to them shattering into shards.

Medical interference

Individuals with a heart stimulator should keep an large gap from magnets. The magnetism can stop the operation of the implant.

Phone sensors

GPS units and smartphones are highly sensitive to magnetic fields. Direct contact with a strong magnet can permanently damage the sensors in your phone.

Machining danger

Combustion risk: Neodymium dust is highly flammable. Do not process magnets without safety gear as this risks ignition.

Nickel coating and allergies

Nickel alert: The Ni-Cu-Ni coating consists of nickel. If redness happens, immediately stop working with magnets and wear gloves.

Threat to electronics

Data protection: Strong magnets can ruin payment cards and delicate electronics (heart implants, hearing aids, timepieces).

Security! Looking for details? Read our article: Why are neodymium magnets dangerous?
Dhit sp. z o.o.

e-mail: bok@dhit.pl

tel: +48 888 99 98 98