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CM PML-10 / N45 - magnetic gripper

magnetic gripper

Catalog no 100478

GTIN/EAN: 5906301812647

5.00

Weight

33300 g

Magnetization Direction

↑ axial

Load capacity

1000.00 kg / 9806.65 N

product parameters »

2019.05 ZŁ with VAT / pcs + price for transport

1641.50 ZŁ net + 23% VAT / pcs

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Technical - CM PML-10 / N45 - magnetic gripper

Specification / characteristics - CM PML-10 / N45 - magnetic gripper

properties
properties values
Cat. no. 100478
GTIN/EAN 5906301812647
Production/Distribution Dhit sp. z o.o.
ul. Zielona 14 05-850 Ożarów Mazowiecki PL
Country of origin Poland / China / Germany
Customs code 85059029
Weight 33300 g
Magnetization Direction ↑ axial
Load capacity ~ ? 1000.00 kg / 9806.65 N
Manufacturing Tolerance ±1 mm

Magnetic properties of material N45

Specification / characteristics CM PML-10 / N45 - magnetic gripper
properties values units
remenance Br [min. - max.] ? 13.2-13.7 kGs
remenance Br [min. - max.] ? 1320-1370 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.] ? 43-45 BH max MGOe
energy density [min. - max.] ? 342-358 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
Technical and environmental data
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%
Environmental data
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: 100478-2026
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The magnetic lifter works based on powerful neodymium magnets and does not require any external power supply. Activation of the field occurs by turning the hand lever 180 degrees. The load will not fall automatically, which is crucial in heavy sheet transport.
The force given in the name is the maximum laboratory value, so-called nominal capacity. Force is affected by material thickness (the thinner, the weaker it holds - magnetic saturation occurs). For safety, it is recommended to oversize the device relative to the load weight (e.g., 300kg capacity for 100kg sheet).
The lower part design allows stable gripping of cylindrical and flat elements. The lifter is a 2-in-1 tool - it handles flat bars and turned elements. However, remember that capacity for round elements is usually 50% lower than for flat ones (check specification).
Our lifters have a high safety factor of 3:1 or 3.5:1 (depending on model). This guarantees that the lifter will not drop the load with a slight jerk of the crane. Always observe safety rules during vertical transport, regardless of safeguards.
The key to long life is caring for the working surface (magnetic foot). Mechanical damage to the foot can drastically reduce grip force, creating a hazard. It is worth commissioning lifter attestation once a year to confirm its efficiency.

Strengths and weaknesses of rare earth magnets.

Benefits

In addition to their magnetic capacity, neodymium magnets provide the following advantages:
  • Their strength is durable, and after approximately 10 years it drops only by ~1% (according to research),
  • Magnets effectively resist against demagnetization caused by ambient magnetic noise,
  • In other words, due to the glossy finish of gold, the element gains a professional look,
  • The surface of neodymium magnets generates a strong magnetic field – this is a distinguishing feature,
  • Through (adequate) combination of ingredients, they can achieve high thermal resistance, enabling functioning at temperatures approaching 230°C and above...
  • Thanks to modularity in forming and the capacity to customize to client solutions,
  • Huge importance in electronics industry – they are used in data components, brushless drives, precision medical tools, as well as modern systems.
  • Thanks to concentrated force, small magnets offer high operating force, with minimal size,

Cons

Disadvantages of neodymium magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • We warn that neodymium magnets can lose their power at high temperatures. To prevent this, we recommend our specialized [AH] magnets, which work effectively even at 230°C.
  • When exposed to humidity, magnets usually rust. For applications outside, it is recommended to use protective magnets, such as those in rubber or plastics, which prevent oxidation and corrosion.
  • We recommend casing - magnetic mount, due to difficulties in producing nuts inside the magnet and complex forms.
  • Potential hazard resulting from small fragments of magnets can be dangerous, in case of ingestion, which becomes key in the context of child health protection. Additionally, small elements of these devices are able to be problematic in diagnostics medical when they are in the body.
  • High unit price – neodymium magnets are more expensive than other types of magnets (e.g. ferrite), which can limit application in large quantities

Pull force analysis

Maximum lifting force for a neodymium magnet – what affects it?

The lifting capacity listed is a theoretical maximum value conducted under the following configuration:
  • on a block made of mild steel, effectively closing the magnetic field
  • whose thickness is min. 10 mm
  • characterized by lack of roughness
  • with zero gap (without impurities)
  • under perpendicular application of breakaway force (90-degree angle)
  • in stable room temperature

Determinants of lifting force in real conditions

Effective lifting capacity impacted by working environment parameters, such as (from most important):
  • Distance (betwixt the magnet and the plate), as even a microscopic clearance (e.g. 0.5 mm) results in a reduction in lifting capacity by up to 50% (this also applies to varnish, rust or debris).
  • Load vector – maximum parameter is obtained only during perpendicular pulling. The shear force of the magnet along the surface is standardly several times smaller (approx. 1/5 of the lifting capacity).
  • Substrate thickness – for full efficiency, the steel must be adequately massive. Paper-thin metal limits the attraction force (the magnet "punches through" it).
  • Plate material – low-carbon steel gives the best results. Alloy admixtures decrease magnetic properties and holding force.
  • Surface finish – ideal contact is obtained only on polished steel. Rough texture create air cushions, reducing force.
  • Heat – neodymium magnets have a negative temperature coefficient. When it is hot they are weaker, and in frost gain strength (up to a certain limit).

Holding force was tested on a smooth steel plate of 20 mm thickness, when a perpendicular force was applied, in contrast under attempts to slide the magnet the holding force is lower. Moreover, even a minimal clearance between the magnet and the plate decreases the load capacity.

Warnings
Risk of cracking

Despite metallic appearance, neodymium is brittle and cannot withstand shocks. Avoid impacts, as the magnet may shatter into sharp, dangerous pieces.

Finger safety

Protect your hands. Two large magnets will join immediately with a force of several hundred kilograms, crushing anything in their path. Exercise extreme caution!

Product not for children

Neodymium magnets are not toys. Accidental ingestion of a few magnets may result in them pinching intestinal walls, which poses a direct threat to life and necessitates immediate surgery.

Allergy Warning

Nickel alert: The nickel-copper-nickel coating contains nickel. If an allergic reaction happens, cease working with magnets and wear gloves.

Fire risk

Fire hazard: Neodymium dust is highly flammable. Avoid machining magnets without safety gear as this risks ignition.

Cards and drives

Avoid bringing magnets near a wallet, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Do not underestimate power

Handle with care. Rare earth magnets act from a long distance and connect with massive power, often faster than you can react.

Precision electronics

A powerful magnetic field disrupts the operation of magnetometers in phones and GPS navigation. Maintain magnets near a smartphone to prevent damaging the sensors.

Warning for heart patients

Life threat: Strong magnets can deactivate pacemakers and defibrillators. Stay away if you have medical devices.

Demagnetization risk

Control the heat. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.

Caution! More info about risks in the article: Magnet Safety Guide.