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CM PML-3 / N45 - magnetic gripper

magnetic gripper

Catalog no 100226

GTIN/EAN: 5906301812623

5.00
Load capacity 300.00 kg / 2941.99 N
Weight
9400 g
Magnetization Direction
↑ axial

How we measure these parameters — certificates and measurements

product specifications »

763.41 zł net / pcs

938.99 zł with VAT (23% VAT) / pcs

price for transport

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Gross
price from 1 pcs
763.41 zł
938.99 zł
price from 5 pcs
725.24 zł
892.04 zł
price from 10 pcs
687.07 zł
845.09 zł

Frequently asked questions

Which rod should I choose for fine contamination?
For particles below 0.5 mm — a Ø32 mm rod in grade N52, with surface induction of about 10,000 Gs. A Ø25 rod in grade N42 gives about 6,500 Gs and is chosen for contamination above 1 mm: bolts, washers, pieces of wire.
Which rod pitch should I choose?
The narrow pitch, 40 mm centre to centre, for fine free-flowing fractions — it gives denser coverage of the cross-section. The wide pitch, 50 mm, for granulates and for damp, greasy or sticky materials, where a narrow pitch risks the material bridging above the rods.
Why does efficiency drop after a few weeks of operation?
Almost always because the separator has not been cleaned. The layer of captured particles shields the field, and further particles settle on that layer rather than on the rod surface, where the gradient is far stronger. The magnets themselves do not weaken at that rate.

Guides from the knowledge base

Want to talk magnets?

Call us now +48 888 99 98 98 alternatively let us know using contact form the contact section.
Specifications and structure of a neodymium magnet can be estimated using our power calculator.

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Technical parameters of the product - CM PML-3 / N45 - magnetic gripper

Specification / characteristics - CM PML-3 / N45 - magnetic gripper

properties
properties values
Cat. no. 100226
GTIN/EAN 5906301812623
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 9400 g
Magnetization Direction ↑ axial
Load capacity ~ ? 300.00 kg / 2941.99 N
Manufacturing Tolerance ±1 mm

Magnetic properties of material N45

Specification / characteristics CM PML-3 / N45 - magnetic gripper
properties values units
Remanence Br ? 13.2-13.7 kGs
Remanence Br ? 1320-1370 mT
Coercivity bHc ? 10.8-12.5 kOe
Coercivity bHc ? 860-995 kA/m
Intrinsic coercivity iHc ≥ 12 kOe
Intrinsic coercivity iHc ≥ 955 kA/m
Energy product BHmax ? 43-45 BH max MGOe
Energy product BHmax ? 342-358 BH max KJ/m
Maximum working 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 310 °C
Curie Temperature TF 590 °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

Chemical composition

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%

Ecology and recycling (GPSR)

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: 100226-2026
Measurement Calculator

Pulling force

Magnetic Induction

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The lifter needs no battery, accumulator, or cable, it works fully mechanically. Control consists of mechanical rotation of the magnetic shaft, which closes or opens the magnetic flux. This is a safe solution because the magnet will not drop the load upon mains voltage loss.
The nominal capacity of the lifter (e.g., 300.00 kg) is measured in ideal conditions: on smooth and thick steel. In reality, lifting capacity depends on three factors: sheet thickness, air gap, and material type. For safety, it is recommended to oversize the device relative to the load weight (e.g., 300kg capacity for 100kg sheet).
Thanks to the specially profiled V-type foot, safe lifting of pipes, shafts, and rods is possible. This enables universal lifting of both flat sheets and round materials with one device. When lifting pipes, capacity drops by half due to smaller contact area.
The device must withstand a load three times greater than nominal during break tests. This guarantees that the lifter will not drop the load with a slight jerk of the crane. Products have a CE declaration of conformity and meet European machine safety standards.
Most important is keeping the bottom surface of the lifter clean and smooth. Any dents or stuck filings increase the air gap and weaken capacity. Protect the device from moisture and strong mechanical impacts.

Strengths and weaknesses of rare earth magnets.

Benefits

Besides their stability, neodymium magnets are valued for these benefits:
  • They retain full power for nearly 10 years – the loss is just ~1% (in theory),
  • Neodymium magnets remain extremely resistant to loss of magnetic properties caused by external interference,
  • In other words, due to the aesthetic layer of gold, the element becomes visually attractive,
  • They are known for high magnetic induction at the operating surface, which increases their power,
  • Neodymium magnets are characterized by very high magnetic induction on the magnet surface and are able to act (depending on the shape) even at a temperature of 230°C or more...
  • Thanks to versatility in shaping and the capacity to modify to individual projects,
  • Significant place in innovative solutions – they find application in HDD drives, electric motors, medical equipment, also other advanced devices.
  • Relatively small size with high pulling force – neodymium magnets offer high power in small dimensions, which makes them useful in small systems

Disadvantages

Disadvantages of NdFeB magnets:
  • To avoid cracks upon strong impacts, we recommend using special steel holders. Such a solution protects the magnet and simultaneously increases its durability.
  • Neodymium magnets lose their force under the influence of heating. As soon as 80°C is exceeded, many of them start losing their force. Therefore, we recommend our special magnets marked [AH], which maintain durability even at temperatures up to 230°C
  • Magnets exposed to a humid environment can rust. Therefore when using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material resistant to moisture
  • Due to limitations in producing nuts and complicated forms in magnets, we propose using casing - magnetic holder.
  • Possible danger resulting from small fragments of magnets are risky, if swallowed, which is particularly important in the context of child safety. It is also worth noting that small components of these magnets can disrupt the diagnostic process medical in case of swallowing.
  • Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications

Lifting parameters

Magnetic strength at its maximum – what it depends on?

The lifting capacity listed is a theoretical maximum value performed under specific, ideal conditions:
  • with the application of a sheet made of special test steel, guaranteeing full magnetic saturation
  • whose transverse dimension reaches at least 10 mm
  • characterized by smoothness
  • without the slightest insulating layer between the magnet and steel
  • for force applied at a right angle (pull-off, not shear)
  • at temperature room level

Determinants of practical lifting force of a magnet

Real force impacted by specific conditions, mainly (from most important):
  • Clearance – existence of any layer (rust, tape, gap) acts as an insulator, which reduces capacity rapidly (even by 50% at 0.5 mm).
  • Force direction – note that the magnet holds strongest perpendicularly. Under sliding down, the capacity drops significantly, often to levels of 20-30% of the maximum value.
  • Element thickness – for full efficiency, the steel must be adequately massive. Thin sheet restricts the attraction force (the magnet "punches through" it).
  • Material composition – not every steel reacts the same. High carbon content weaken the attraction effect.
  • Plate texture – smooth surfaces ensure maximum contact, which improves force. Rough surfaces reduce efficiency.
  • Temperature influence – hot environment reduces pulling force. Exceeding the limit temperature can permanently demagnetize the magnet.

Lifting capacity was assessed with the use of a smooth steel plate of optimal thickness (min. 20 mm), under perpendicular pulling force, in contrast under parallel forces the load capacity is reduced by as much as 5 times. Additionally, even a minimal clearance between the magnet’s surface and the plate decreases the load capacity.

Precautions when working with neodymium magnets
Precision electronics

Be aware: neodymium magnets produce a field that interferes with precision electronics. Keep a separation from your phone, device, and GPS.

Data carriers

Do not bring magnets near a purse, computer, or screen. The magnetic field can permanently damage these devices and wipe information from cards.

Physical harm

Pinching hazard: The pulling power is so great that it can cause hematomas, pinching, and broken bones. Use thick gloves.

Do not underestimate power

Use magnets with awareness. Their powerful strength can shock even professionals. Be vigilant and do not underestimate their force.

Pacemakers

Warning for patients: Powerful magnets disrupt electronics. Keep minimum 30 cm distance or ask another person to handle the magnets.

Do not drill into magnets

Machining of NdFeB material poses a fire hazard. Magnetic powder reacts violently with oxygen and is difficult to extinguish.

Shattering risk

Protect your eyes. Magnets can fracture upon uncontrolled impact, ejecting shards into the air. Wear goggles.

Demagnetization risk

Regular neodymium magnets (N-type) undergo demagnetization when the temperature surpasses 80°C. The loss of strength is permanent.

Do not give to children

Neodymium magnets are not intended for children. Eating several magnets can lead to them pinching intestinal walls, which constitutes a direct threat to life and necessitates urgent medical intervention.

Allergic reactions

It is widely known that nickel (the usual finish) is a potent allergen. If your skin reacts to metals, avoid direct skin contact or select encased magnets.

Danger! More info about hazards in the article: Magnet Safety Guide.