What is a Prazis barrel?
The removable cylinder assembly that transfers key movement to the internal mechanism of the lock case. The barrel is the part of the lock the key actually operates.
Prazis-format lock cylinders
Prazis Lock Cylinder with Three Long-Bit Keys
A Prazis barrel is a cylinder type operated by a long-bit key and fitted to a matching lock case. The Noray Prazis barrel is supplied as one cylinder with three keys cut for it. It is not exclusive to Noray locks; it can be used in any compatible lock case built for the Prazis cylinder.
Product details
Cylinder, three keys and product packaging.
Open the images at full size to compare the cylinder and key format.
How the lock works
A replacement cylinder for compatible Prazis-format lock cases.
This product is the key-operated cylinder assembly, not a complete lock case. It can be used in compatible Prazis-format locks from different manufacturers and should not be assumed to fit other cylinder formats.
Lock cases designed for Prazis cylindersPrazis-cylinder mortice locksExisting Prazis barrel replacementsLocksmiths and lock suppliers
Noray · Prazis cylinderApplication guide
What to check when selecting a Prazis lock cylinder
A Prazis barrel is a cylinder operated by a long-bit key and fitted to a lock case built for it. Barrel types can look alike, so selection starts from the existing barrel itself — not from the appearance of the key.
Which lock cases accept it?
Lock cases manufactured for the Prazis cylinder. It is not tied to a Noray lock model and works in other cases with a suitable body.
How are the measurements taken?
Remove the existing barrel from the lock case. Measure its body length and diameter and note how it connects. Photographing it from the front, back and side alongside the key makes comparison easier.
How is compatibility confirmed?
Share the measurements and photographs before ordering. No replacement should be made until the lock case is confirmed to work with a Prazis cylinder.
Frequently asked questions
Prazis Lock Cylinder questions
Send us your project details for dimensional drawings or compatibility guidance.
Request technical documentation →What are the dimensions of the Prazis cylinder?
Sizing is taken from the existing barrel. Remove it from the lock case, measure its length and diameter, and note the connection style. Suitability is checked before you order once these details and photographs are shared.
Is the Prazis cylinder only for Noray locks?
No. It can be used in compatible lock cases built for the Prazis cylinder format. The existing barrel's type and dimensions still need to be checked.
Does it fit every door lock?
No. The lock case must be manufactured for a Prazis cylinder. Other barrel types should not be assumed equivalent.
How many keys are supplied?
The package contains one Prazis cylinder and three long-bit keys operating that same cylinder.
Can I get a compatibility check before ordering?
Yes. Send photographs of the existing barrel, the measurements you have taken and the quantity you need.
Operating principle
Replaces the cylinder assembly in a compatible Prazis-format lock case.
Turning the key moves the barrel's operating element, which drives the mechanism inside the lock case. If the lock case is serviceable and compatible, only the barrel can be removed and replaced. Before replacement, confirm that the existing barrel is the Prazis type; measurements are taken from that barrel and compared with the new one.
Prazis-format compatibilityThe lock case must accept a Prazis cylinder and the connection dimensions must match.
Technical overview
Information required for compatibility checking.
Send clear photographs, principal dimensions and the lock-case application before ordering.
Product typePrazis lock cylinder / barrel
Key typeLong-bit key
ApplicationCompatible Prazis-format lock cases
Package1 Prazis cylinder + 3 long-bit keys
BrandNO-RAY / Noray Kilit
Not tied to a single lock
Works in different compatible lock cases built for the Prazis cylinder format.
Sizing comes from the existing barrel
Remove the current barrel before ordering and compare its length, diameter and connection style with the new product.
Three-key set
The package holds one Prazis cylinder and three long-bit keys cut for that cylinder.
General application
For compatible Prazis-format lock cases, not only Noray lock bodies
Compatibility support
Review based on existing cylinder photographs and dimensions
Three-key set
One Prazis cylinder and three long-bit keys
Bulk supply
Quotation based on quantity and delivery requirements
Compatibility and quotation