ZZ Marts’ Magnetic Locks category features Tuya-enabled smart handle door locks with fingerprint, PIN, RFID, and card access for main doors and gates, alongside fingerprint cabinet and drawer locks. If you’re looking for the magnetic lock hardware and Z/L mounting brackets themselves (180KG and 280KG maglock brackets), check our Brackets & Fittings category, which stocks the mounting components used alongside these systems. Our Karachi and Lahore teams can help you put together a complete magnetic-lock-and-bracket setup for your specific door — message us on WhatsApp with your door type and we’ll confirm compatibility.

What a magnetic door release system is. A magnetic door release system uses an electromagnet mounted on the door frame and a steel armature plate on the door. While power flows, the magnet holds the door shut with considerable force. When the access control system, exit button, or fire alarm cuts that power, the magnet releases instantly and the door opens freely. There are no moving parts to wear out, which is why maglocks are the most common choice for doors that are used hundreds of times a day.

Choosing holding force. Magnetic locks are rated by holding force, commonly 180kg, 280kg, and 380kg. Higher is not automatically better; the right rating depends on the door. A light internal office or glass door is well served by 180kg to 280kg. A main entrance, a heavy timber door, or any door where someone might realistically apply force deserves 280kg to 380kg. Double doors need a lock on each leaf rather than one larger unit. If you are unsure, tell us the door material, its width, and where it sits, and we will recommend a rating rather than simply selling you the largest.

Why maglocks suit escape routes. Because a magnetic lock releases the moment power is lost, it fails safe by nature. That behaviour is exactly what you want on a fire exit or any door people must escape through, and it is the main reason fire officers and consultants tend to prefer maglocks over bolt locks on escape routes. It also means load shedding will open these doors, so plan accordingly: doors that must stay secure through an outage need a backup power supply.

Brackets are not an afterthought. Most installation problems we see come down to brackets. An inward opening door usually needs an L bracket. A glass door without a frame needs a U bracket that clamps the glass. Frameless glass, narrow aluminium sections, and doors that open outward each need their own fitting. Ordering a maglock without the correct bracket is the most common reason an installation stalls halfway, so tell us your door type and we will supply the matching bracket with it.

Power supply and backup. Magnetic locks draw current continuously for as long as the door is locked, unlike a bolt lock which only draws power when operating. Your power supply must be rated for that continuous load, and for multiple doors the figures add up quickly. A backup battery or UPS is strongly recommended in Pakistan, both so secure doors stay secure during load shedding and so the system behaves predictably rather than every door in the building releasing at once.

Wiring and the NC contact. Because a maglock releases when the circuit breaks, exit buttons and release devices are normally wired as normally closed. Getting this backwards results in a door that either never locks or never releases, and it is the single most frequent wiring error on maglock installations. If you are combining a maglock with an exit button, break glass unit, and access keypad, confirm the contact types before wiring.

Fire alarm interfacing. On escape routes, the maglock should be wired so that a fire alarm activation cuts power and releases the door, independently of the access control system. This is a basic safety expectation rather than an optional refinement, and it is worth confirming with whoever installs your fire panel.

Maintenance. Keep the magnet face and armature plate clean and free of dust and grit, since anything between the two surfaces reduces holding force noticeably. Check periodically that the armature plate is still able to sit flush and has not worked loose, as a slightly loose plate is the usual cause of a lock that feels weaker than its rating.

Buying from ZZ Marts. We stock 180kg, 280kg, and 380kg magnetic locks including five wire versions with status output, along with L brackets, U brackets, glass door fittings, exit buttons, break glass releases, power supplies, and access control keypads. Supplied from our Karachi (Saddar) and Lahore stores with delivery across Pakistan, trading as Zam Zam Traders since 2005. Send us a photograph of your door on WhatsApp and we will confirm the holding force and bracket you need before you order.