Lockwood 3572 in box

Lockwood 3572 Vestibule lock

Lockwood 3572  Review

The Lockwood 3572 mortise lock is one of the most common lock found on apartment doors, government buildings, commercial premises and many other places in Brisbane.  I hope this helps explain a little about this lock

Supplied in a red box

Lockwood 3572 in boxThe Lockwood 3572 mortise lock body is sold  separate to handles, cylinder and turnsnibs.  They are sold separately simply because there are just so many options to choose from in design and function.

The lock body is diecast with a stainless steel latch bolt and a stainless steel deadlatching pin.

On the face of the body it has 2 screw holes for attaching the face plate and 2 holes for cylinder or adapter pins.

On each side of the lock it has a large cylinder hole and a square spindle hole. There are also a couple of adjustment holes and screws and holes for handle mounting

features

It might look like just any other lock, but the Lockwood 3572 has so many features that I am sure I will miss a few.


Lockwood 3572 latchLets start with the latch. The latch is made from stainless steel and attaches to the inside latch plate assembly via a 12mm rotating shaft.  The bolt can be rotated to suit either an inward or outward or opening door.  The face plate of the lock once fitted locks the latch into the set orientation.


The faceplate also holds the optional cylinder retainer pins in position.  The cylinder retaining pins are a tight push fit.  They are not threaded and require only slight pressure when inserting into a cylinder.

The top adjustment hole is for the “Kick Offf Function”.  The kick off function is not there to remind you when your favorite rugby team is playing.  What it does is “Kick Off” the locking function when the door is closed.  It is designed to stop people locking themselves out.

Lockwood 3572 adjust functionsThe lower adjustment hole is setable with a flat blade screwdriver.  Turning this setting screw will set the lock to have either an escape function where the lock is always free to open or it will make the lock handles lockable.  There is a setable escape function on both sides of the lock for the inside and outside handle.

The square spindle hole is separated in the centre by a dividing plate.  This allows the inside and outside handles to operate independently. So it is possible for the outside handle to be locked and the inside to be free to open the door.

The handle fitting holes are designed to match the various handle designs available to suit the Lockwood 3572.

That is about all the external features of this lock but in no where near explains the functions available.

Other lock options

Lockwood 3572 cylinder retainerThis is where this lock starts to get exceedingly interesting.

For example the locking cylinder comes in satin chrome, bright chrome and polished brass.  They can also be ordered in antique bronze and a whole range of special finishes.  The cylinder can also be an extended cylinder.  An extended cylinder comes in 50mm 62mm 78mm 86mm and 100mm and dont forget the standard 39mm cylinder.

Both the cylinder and snib adapter also have a range of different cams.  There is an X, W, Y, Z and M cam for the cylinders.  There is also a range of 6 different cams available for the snib adapter.  Of course these cams can be used in any combination on the door.  Making over 250 different functions available for this lock, just with cam and snib adapter alone.

Did I mention there is also a round cylinder available for this lock?  There are just so many options for this lock.

Of course there is also a rebated kit avaliable for double doors.

Lockwood 3572 locks and cylindersThen you have the range of high security lock cylinders and registered key systems that also are compatiable with this lock. Compatiable cylinders include Lockwood MT5, Lockwood’s Generation 6, Lockwood twin, bilock, Galaxy, series 6, Salto, Multi lock, MLA DC1, MLA LSGP, Binary Plus, Kaba Expert, Pextra, IP6, IP7, Abloy protec, Abloy protec 2, etc….

Wow there are so many compatible keying systems available with this lock. I cant even list ¼ of them!

Did I mention there is also a 3570 hold back cylinder?  I forget.  There are so many options and functions for this lock.

Handles

Lockwood Plate handle Lockwood Rose type handleSorry guys we’re not done yet.  I haven’t even mentioned the handle options!
Ok so I will try to be quick.

So the Lockwood handles comes in 2 main types.  There are handles with a plate extending the length of the lock covering the cylinder hole and the spindle, which is screwed on from the inside.  Then there is the Rose type handles and cylinder escutcheons. These come in 2 separate pieces for the handles and the cylinders.

The variety of handles, knobs, plates, escutcheons, is very large. There are commercial looking levers, plates to suit hospitals.  Modern designs to suit apartment doors, square designs.  Lockwood has a list of handle designs longer then your arm!

Finish

Lockwood 3572 face plate satin chromeThe finish of the 3572SC is brushed stainless steel.  The only part of the lock body visible is the plate on the edge of the door.  Of course the handles have so many options in colour and texture the finish will depend on what you require in a lock.  The lock cover plate and strike are mostly seen in satin chrome or polished brass.

ugly score

Is this lock ugly?
I have to give this lock a very low ugly score. Simply due to the number of handle options.  You can choose handles that are to your taste. If you do not like the way it looks you can simply change the handles to something more appropriate.

Fitting

Is the 3570 easy to fit?

Lockwood 3572 fitting templateOK, this is a mortise lock.  They are one of the most time consuming locks to install from scratch.  A large opening needs to be made in the edge of the door to install the lock.  Lockwood provides a template to help with installation and even part of the box folds out into a template to help with fitting the cylinder holes and handles.

Retrofitting

This lock is generally only fitted to a door where a very similar type of lock has been installed.  There are locks made by other manufacturers that use a very similar, if not identical hole pattern to the Lockwood 3570.  The Lockwood 3570 can replace mortise locks made by Gainsbrough, Dorma, Kaba and others.

Uses – types of doors

The Lockwood 3570 can be installed on just about any wooden door.  It can be used on fire escape doors as well as fire rated doors. It is fitted to many apartment doors for this reason.  The fire rating may depend on the type of door the lock is fitted to.  Many specialty fire doors are designed to use the Lockwood 3572 mortise lock.

It is used on commercial doors as well such as hospitals, shops, factories, storerooms, fire escapes and a whole lot more.  It is also fitted to doors in homes around Australia.

security

Lockwood 3572 turn snib adaptorAs there is such a wide range of cylinders for this lock, the security of the locking cylinder is very dependent on your choice.  A cheap non original cylinder might be very easy to bump or pick.  A high security on the other hand will make it almost impossible to pick the lock.

manipulating

The lock when fitted to the door has no points of access for manipulation.  The latch can not be slipped with a piece of plastic if fitted correctly due to the deadlatching pin.  The cylinder hole has no extra gaps for insertion of opening tools.

The type of handles used with this lock can make the lock more secure.  Generally the square plate furniture is recommended over the rose furniture.

If an escape function is used on the inside handle, this can on certain doors make the lock vulnerable to certain types of opening techniques.

A look inside

Lockwood 3572 inside viewAs complicated as this lock seems, it is actually quite minimalist in its design.  Other locks can have many more springs and small parts.
The lock has a die-cast body with mostly stainless steel parts.  The locking bolt mechanism which locks the handles I believe is die-cast although the end which actually contacts the handles hub is steel.  It is really their rather basic design which makes them relatively hassle free.

Reliability

Lockwood have been manufacturing this type of mortise lock for many years and they have a reputation of being one of the best mortise locks for good reason.  They are an extremely reliable lock.  They are very versatile, have a large array of functions and made heavy duty enough to operate on commercial doors.


As a replacement lock or a lock for a new building the Lockwood 3570 series is definitely a good choice.