Custom Strong Countersunk Hole Ring Magnets,Screw Neodymium Magnet
Countersunk hole magnets are defined by three dimensions: outter diameter,screw hole size and thickness. To be consistent, we define the Thickness dimension along the axis of magnetization. The thickness is usually the smallest dimension, but not always!
We’re sometimes asked if we can provide ring magnets magnetized through diameter. Yes, we can do it,we defined it diametrically magnetized.
Neodymium Magnet Technology Parameter:
Product show case
Package and shipping
1 Countersink Hole Ring Neodymium Magnet information
1) Size ( D1 *D3/D2*T), in mm or Inch
2) Surface Coating (Normal is Zn, NiCuNi)
3) Grade, ( Normal is N35, or higher grade requirement)
(Higher grade, Strength stronger, also Price higher)
4) Magnetised direction (Normal is axially magnetised)
5) Woring tempreture, (Normal temperature or special temperature)
(Tell us the quantity for us to estimate is weight, then can select suitable express) company)
7) Expect arrive time
(warehouse to door or door to door service, or special Fast Delivery Service)
2 Manufacture Ability
1) Diameter, from 1mm to 80mm, usually 3mm to 50mm (1 inch=25.4mm)
2) Thickness, from 0.5mm to 60mm, usually 1mm to 5mm
3) Tolerance, ±0.1mm, ±0.05mm for selection.
4) To some high working tempreture ,or higher grade , or radially magnetised magnet,
We also can manufacture in high cost-performance radio, small quantity also welcome.
3 Manufacture Time
To usually N35 grade magnet (axially magnetised),
1) block magnet, we usually finished in 12-15 days after received deposit;
2) disc magnet,we usually finished in 10-12 days after received deposit;
3) ring magnet, we usually finished in 12-15 days after received deposit
to Grade about N35, such as N38,N40,N42,N45,N48,N50,N52 magnet(axially magnetised),
to 35H,38H,40H,42H Magnet (axially magnetised),
to N35SH,38SH,40SH(axially magnetised),
to 35EH magnet (axially magnetised),
we usually finished in 15-18 days after received deposit
to N35SH radially magnetised disc/cylinder magnet
size below 8mm，we usually finished in 12-15 days after received deposit;
to N38H radially magnetised disc/cylinder magnet
size below 4.5mm，we usually finished in 12-15 days after received deposit;
to other size radially magnetised disc/cylinder magnet
usually finished in 18-20 days after received deposit
2) Also, we supply Fast delivery Service for selection.
4 About Express:
1) warehouse to door service, usually need 7-9 days to your address
it also need 2 days for us to send magnets to warehouse
so, totally it need 9-11 days for u to receive magnets after we sended out.
Fedex, DHL,UPS,TNT,ARMAX, price cheaper than door to door service,
We applied for 20% discount
2) door to door service, usually need 4-7 days to your address,
use DHL service, its suitable for package above 20kg
if value of goods above 1000 dollars, need customs clearance, it need addtional 1-2 days
we applied for very good discount. Also, you can use your own DHL account.
Specialize in Neodymium Magnets and Magnets Device
Manufacture Magnet Since 2003
Export magnet Since 2009
Pass Certificate En71, Astm-F963, CPC ,CSPIA
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1 Can we get free sample?
1.1 Yes,we have over 400 sizes available, Usually sample quantity is 5-10 pcs, It is free. Check stock sizes files , through our web page’s menu “Download” (refresh cycle:2 month); Also Welcome to contact us for newest information of free sample.
1.2, if our stock sizes cannot meet your requirement, we also can manufacture some samples.usualy its quantity is 5-10 pcs. If u need much quantity, or much sizes samples, welcome to contact us.
1.3 You just pay DHL express fee or use your own DHL collection account. We prefer DHL , because DHL can supply magnetism test service. We will use magnetism-shield package.
Or, express to your cargo agent in china (we will payed the express fee from factory to agent office). We will use magnetism-shield package. too
2 If we paid for the sample charge,can we get the charge back when we place an order next time?
Yes,we will refund you sample fee when you place an order. You just subtract the fee in total payment.