UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder
search holder
Catalog no 210339
GTIN/EAN: 5906301813989
Diameter Ø
135 mm [±1 mm]
Height
40 mm [±1 mm]
Weight
4300 g
Load capacity
680.00 kg / 6668.52 N
Coating
[NiCuNi] Nickel
Magnetic Flux
~ 10 000 Gauss [±5%]
599.99 ZŁ with VAT / pcs + price for transport
487.80 ZŁ net + 23% VAT / pcs
bulk discounts:
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Instead of believing fairy tales on YouTube with tests on uncertified equipment, see what really determines your magnet's power:
- 📏 Magnet thickness in the casing (min. 10mm) – This is what matters most! Thin magnets are weak. Thanks to the 1cm thickness of N52 neodymium, your magnet "sees" metal even through thick rust and mud.
- 🛡️ Armored protection (Black Epoxy) – Forget about rust. This coating doesn't chip when hitting rocks and protects the magnet in water much better than regular nickel, which fails quickly.
- 🧲 Eyelets that don't steal power – Made of special non-magnetic steel, so they don't stick to the magnet and don't block the force. Important: mount only one eyelet at a time! Using 3 at once is a mistake that weakens the magnet.
- 🧶 Certified rope (min. 8mm) – You gain the certainty that your gear won't stay at the bottom. It's thick and comfortable, so it doesn't cut your fingers when pulling out heavy scrap metal.
- 🚀 Our advantage: We are the only ones combining the strongest N52 neodymium (10mm thick) with non-magnetic eyelets. This is real power and durability you won't find anywhere else.
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Technical - UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder
Specification / characteristics - UMP 135x40 [M10+M12] GW F 600 kg / N38 - search holder
| properties | values |
|---|---|
| Cat. no. | 210339 |
| GTIN/EAN | 5906301813989 |
| Production/Distribution | Dhit sp. z o.o. |
| Country of origin | Poland / China / Germany |
| Customs code | 85059029 |
| Diameter Ø | 135 mm [±1 mm] |
| Height | 40 mm [±1 mm] |
| Weight | 4300 g |
| Load capacity ~ ? | 680.00 kg / 6668.52 N |
| Coating | [NiCuNi] Nickel |
| Holder Type | 2 sided |
| Material Type | Structural steel S235 (ferrous) |
| Magnetic Flux | ~ 10 000 Gauss [±5%] |
| Size/Mount Quantity | 2xM10/1xM12 |
| Manufacturing Tolerance | ±1 mm |
Magnetic properties of material N38
| properties | values | units |
|---|---|---|
| remenance Br [min. - max.] ? | 12.2-12.6 | kGs |
| remenance Br [min. - max.] ? | 1220-1260 | mT |
| coercivity bHc ? | 10.8-11.5 | kOe |
| coercivity bHc ? | 860-915 | kA/m |
| actual internal force iHc | ≥ 12 | kOe |
| actual internal force iHc | ≥ 955 | kA/m |
| energy density [min. - max.] ? | 36-38 | BH max MGOe |
| energy density [min. - max.] ? | 287-303 | BH max KJ/m |
| max. temperature ? | ≤ 80 | °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 |
Elemental analysis
| 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 |
Other proposals
Strengths as well as weaknesses of Nd2Fe14B magnets.
Pros
- Their magnetic field is maintained, and after approximately 10 years it decreases only by ~1% (according to research),
- They have excellent resistance to magnetism drop as a result of external fields,
- By covering with a smooth coating of silver, the element gains an modern look,
- Magnetic induction on the working part of the magnet is strong,
- Made from properly selected components, these magnets show impressive resistance to high heat, enabling them to function (depending on their form) at temperatures up to 230°C and above...
- Thanks to modularity in shaping and the ability to customize to individual projects,
- Huge importance in electronics industry – they are commonly used in data components, drive modules, medical devices, as well as multitasking production systems.
- Relatively small size with high pulling force – neodymium magnets offer strong magnetic field in small dimensions, which makes them useful in miniature devices
Weaknesses
- At strong impacts they can crack, therefore we recommend placing them in special holders. A metal housing provides additional protection against damage, as well as increases the magnet's durability.
- Neodymium magnets lose power when exposed to high temperatures. After reaching 80°C, many of them experience permanent drop of strength (a factor is the shape as well as 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
- Magnets exposed to a humid environment can corrode. Therefore during using outdoors, we suggest using waterproof magnets made of rubber, plastic or other material protecting against moisture
- Due to limitations in creating threads and complex forms in magnets, we recommend using a housing - magnetic mount.
- Health risk related to microscopic parts of magnets can be dangerous, when accidentally swallowed, which is particularly important in the aspect of protecting the youngest. Additionally, small components of these devices are able to complicate diagnosis medical after entering the body.
- Higher cost of purchase is a significant factor to consider compared to ceramic magnets, especially in budget applications
Holding force characteristics
Optimal lifting capacity of a neodymium magnet – what contributes to it?
- using a base made of mild steel, functioning as a ideal flux conductor
- whose thickness is min. 10 mm
- with a surface free of scratches
- without any clearance between the magnet and steel
- for force applied at a right angle (in the magnet axis)
- in temp. approx. 20°C
Lifting capacity in real conditions – factors
- Space between magnet and steel – even a fraction of a millimeter of distance (caused e.g. by veneer or unevenness) drastically reduces the pulling force, often by half at just 0.5 mm.
- Force direction – declared lifting capacity refers to pulling vertically. When slipping, the magnet exhibits significantly lower power (often approx. 20-30% of nominal force).
- Substrate thickness – for full efficiency, the steel must be sufficiently thick. Paper-thin metal restricts the lifting capacity (the magnet "punches through" it).
- Steel grade – ideal substrate is pure iron steel. Cast iron may generate lower lifting capacity.
- Smoothness – full contact is possible only on polished steel. Rough texture reduce the real contact area, weakening the magnet.
- Temperature – heating the magnet causes a temporary drop of force. Check the maximum operating temperature for a given model.
Lifting capacity was assessed using a steel plate with a smooth surface of suitable thickness (min. 20 mm), under vertically applied force, whereas under attempts to slide the magnet the holding force is lower. In addition, even a minimal clearance between the magnet and the plate decreases the load capacity.
Precautions when working with NdFeB magnets
This is not a toy
Always keep magnets out of reach of children. Ingestion danger is significant, and the effects of magnets connecting inside the body are very dangerous.
Handling rules
Before starting, read the rules. Uncontrolled attraction can break the magnet or injure your hand. Be predictive.
Sensitization to coating
A percentage of the population have a hypersensitivity to nickel, which is the typical protective layer for neodymium magnets. Prolonged contact might lead to a rash. It is best to wear protective gloves.
Health Danger
Health Alert: Neodymium magnets can turn off heart devices and defibrillators. Do not approach if you have electronic implants.
Mechanical processing
Fire warning: Neodymium dust is highly flammable. Avoid machining magnets in home conditions as this may cause fire.
Pinching danger
Pinching hazard: The pulling power is so great that it can result in blood blisters, pinching, and broken bones. Use thick gloves.
Shattering risk
Despite the nickel coating, the material is brittle and cannot withstand shocks. Do not hit, as the magnet may crumble into hazardous fragments.
Demagnetization risk
Monitor thermal conditions. Heating the magnet above 80 degrees Celsius will destroy its properties and pulling force.
Keep away from electronics
A powerful magnetic field disrupts the operation of compasses in smartphones and GPS navigation. Maintain magnets close to a device to avoid breaking the sensors.
Safe distance
Data protection: Strong magnets can ruin data carriers and delicate electronics (heart implants, hearing aids, timepieces).
