The offer: calibrated magnetic alignment

Embedded NdFeB permanent magnet rings provide reliable mounting and inductive charging alignment for commercial buyers across the United States. Every MagSafe compatible case in this catalog maintains 15W Qi and Qi2 wireless charging efficiency without exceeding internal coil temperature ceilings.

Weak magnets slip off vertical car mounts. Misaligned rings heat the phone receiver coil and throttle battery charging from 15W down to 5W. Neodymium-iron-boron arrays utilize 36 individual N52 grade sintered segments encased in a sealed hermetic channel, lined with a 0.1 mm mu-metal flux-directing backing plate.

Neodymium N52 magnetic array ring components for MagSafe wireless alignment

Inspection tray of 36 sintered N52 magnetic segments showing flux orientation before polymer overmolding.

Quote factors and confirmed price basis

Units are quoted at 20–40 USD each. Pricing is inquiry-based and non-binding. Exact unit cost depends on phone model, base polymer (Bayer Makrolon polycarbonate versus 85A TPU bumper hybrid), magnetic flux grade (N48 vs N52), and whether copper thermal foil is laminated behind the ring.

Standard clear optical polycarbonate MagSafe case: 20–28 USD each.
Dual-layer armor case with reinforced corners and embedded ring: 28–36 USD each.
Aramid fiber hybrid backplate with shielded magnetic array: 34–40 USD each.

Turnaround is same-day for stocked Apple and Samsung models; batched commercial orders dispatch in 1–3 business days.

Commercial proof and procurement oversight

Catalog operations are directed by Alina Koval, Procurement Manager, active since 2022. All component specifications are verified against physical production samples at 400 South LaSalle Street in Chicago, Illinois.

Commercial shipments operate under official State of Illinois business registration and include certified supplier delivery invoices alongside magnetic field gauss meter test sheets. Drop-shipped mystery plastics and unshielded ferrite rings are strictly excluded.

Magnetic wireless charging disc engaged with phone case alignment ring

Puck alignment benchmark: zero inductive coil offset across 1,000 continuous engagement cycles.

Component Parameter	Generic Ring	OnlyCases N52 Array	Impact On Device
Magnet Grade	N35 Sintered Ferrite	N52 NdFeB Neodymium	+42% magnetic flux density at equal depth
Coil Center Offset	±1.8 mm drift	≤0.2 mm calibrated	Eliminates parasitic eddy currents
Flux Shielding	None (bare polymer)	0.1 mm mu-metal backing	Prevents compass and NFC interference
Coil Temp Rise (15W)	+14.2 °C after 30 min	+5.8 °C after 30 min	Sustained maximum inductive wattage
Substrate Embed Depth	Surface sticker (0.9 mm)	In-mold recessed (0.25 mm)	Zero scratching against phone rear glass

Why we reject surface-glued magnetic stickers

Many aftermarket cases apply an adhesive steel ring to the exterior. Over two to three weeks of car mount thermal cycles, glue softens and shears off. The magnetic ring remains stuck to the mount while the phone falls into the footwell.

OnlyCases MagSafe cases mold the 36 magnets directly into the interior polycarbonate chassis. The magnets never touch the phone glass and cannot peel from the exterior.

Step 01 — 2 hrs

Submit model list and polymer grade

Send your required phone models (iPhone 13 through 16 series, Galaxy S23 through S25 series) and desired finish via our inquiry desk or phone at +1 (340) 808-3456.

Step 02 — Same Day

Specification sheet and invoice quote

Alina Koval provides a line-item quotation based on our 20–40 USD price bracket, confirming ring gauss ratings, camera lip clearances, and exact lead times.

Step 03 — 24 hrs

Physical micrometer and gauss inspection

Cases undergo batch sampling at our Chicago workbench. We measure ring concentricity, button tactile travel, and perimeter bezel lip depth.

Step 04 — 1–3 Days

Commercial packing and dispatch

In-stock configurations ship the same day. Commercial bulk batches dispatch within 1 to 3 business days with tracking and State of Illinois documentation.

Does the magnetic array interfere with compass or NFC payments?

No. We mandate a 0.1 mm mu-metal backing plate behind the 36 magnets. This directs 98% of the magnetic field outwards toward the charging puck or mount, preventing magnetic flux leakage into the internal compass sensor or Apple Pay / Google Wallet NFC antennas.

Do you sell five-dollar unbranded clear cases?

No. Cheap clear cases use recycled TPU that turns brown within four weeks of UV exposure and employ stamped sheet metal rings rather than sintered neodymium magnets. Our cases use Bayer optical polycarbonate and N52 magnets quoted at 20–40 USD each. If you need disposable dollar-store sleeves, our catalog is not the right fit.

Can an unshielded case damage the phone battery over time?

The primary risk is heat. When a magnetic ring is offset by even 2 mm from the internal inductive coil, inductive power loss generates parasitic heat. Our cases maintain sub-0.2 mm alignment, keeping battery pack temperatures during 15W wireless charging well below the 35 °C throttling threshold.

What are your fulfillment lead times?

Same-day turnaround for catalog cases in current inventory. For batched trade orders requiring custom model mixes or commercial invoicing, lead time is 1 to 3 business days.