Profile cylinder locks

reset filters
Profile cylinder locks

Do you want to open and close your lock on both sides? Then a profile cylinder is the best choice. Door cylinder locks offers all kinds of options to customize your profile cylinders. This way we can make all profile cylinders keyed alike, so that you only need one key. We can also provide your profile cylinder locks with an emergency and hazard function, so that the lock can always be opened. Even if there is a key on the inside.

Postma en Postma

Do you need help finding the right product?
Personal advice at Postma and Postma in Alkmaar

Why a cylinder lock

We are the specialist in cylinder locks . Whatever door cylinder lock you are looking for, we deliver it (and quickly). We are part of Postma and Postma , a hardware, lock and key store from Alkmaar. With our experience and optimal stock management, we can supply any desired door cylinder. Are you placing an order before 3 p.m.? We will then send the door cylinder(s) the same day.

The best choice for a safe living environment

By purchasing a door cylinder lock you make it extremely difficult for unwanted guests to enter. Drilling out a door cylinder lock is almost impossible due to the protection with steel pins. For example, the Profile Cylinder EA SKG** is equipped with drilling protection and the Profile Cylinder WLP SKG*** is legally protected against copying. Ask for the possibilities.

Do you need new cylinders now? Visit our store.

We make your door cylinders in our store in Alkmaar while you shop. We supply top quality door cylinders with or without certificate and in all possible dimensions. From 'different keying' - where each door cylinder is operated with a separate key - to keyed alike - where all locks are opened and closed with the same key. May we help you soon?

Frequently Asked Questions
Which cylinder lock do I need?

An SKG 3*** cylinder lock is the safest because this cylinder is equipped with core pulling protection. If the security fittings on your exterior door are equipped with core pulling protection, an SKG 2** cylinder will suffice. You can recognize the core pull protection in the door fittings by the rotating disc in front of the keyhole. If your front or back door fittings do not have core pulling protection, you can easily solve this by installing an SKG 3*** cylinder. In this way, the lock complies with current security standards to significantly reduce the risk of burglary.

What is a knob cylinder?

A knob cylinder is actually the same as a normal cylinder, except that the cylinder has a knob on one side instead of a keyhole. This way you can always easily lock or open your door without needing a key. Knob cylinders are therefore often used in emergency and escape doors. It is a simple solution to ensure that a door meets the requirements of the fire brigade.

You can also never accidentally leave a key on the inside, which means you can no longer operate the cylinder from the outside. According to the requirements of the PKVW (Police Quality Mark for Safe Living), a knob cylinder may not be used in a facade element with non-SKG-approved glass. Otherwise it will be too easy to break a window and open the door. In practice, modern HR glass is not often smashed compared to the single glass of the past, but it is still something to take into account.

Temporary 30% Discount!
Temporary 30% Discount!
Cookie preferences

We use our own and third-party cookies for statistical and marketing purposes to give you the best experience on our website.

You can find more information in our cookie policy
We care about your privacy

You can set your cookie preferences by accepting or rejecting the different cookies described below


Necessary cookies help make a website more usable by enabling basic functions such as page navigation and access to secure areas of the website. The website cannot function properly without these cookies.


Preference cookies allow a website to remember information that changes the way the website behaves or looks, such as your preferred language or the region you are in.


Statistical cookies help website owners understand how visitors interact with websites by collecting and reporting information anonymously.


Marketing cookies are used to track visitors across different websites. The idea is to display ads that are relevant and attractive to the individual user and therefore more valuable to publishers and third-party advertisers.