Product Overview
The euro profile cylinder with thumbturn is a DIN-profile lock cylinder in the Euro Profile Cylinders category, built for doors that need keyless egress from the inside while the outside stays key-operated. It is used by door manufacturers, locksmiths, property managers and hardware distributors on residential entrance doors, apartment doors and commercial office doors. The body, plug and key are brass, the cylinder carries the EN 1303 marking, and it is supplied with 6 active and 6 passive pins in 30-80 mm A and B lengths to order.
That layout solves a daily problem: occupants leave a building or a room without hunting for a key, while the outside face still takes a dimple or vertical key. Buyers specifying the thumbturn euro cylinder get one part number that covers both sides of the door, with keying systems (KA, CE, MK, GMK) and security options chosen at order stage rather than added later.
Key Features
- Thumbturn knob on the inside face: occupants open the door with a hand turn, so no key is needed for egress.
- Brass housing, plug and key: the three wear surfaces that see daily use are the same base material.
- 6 active and 6 passive pins, 4-7 optional: pin count is set at order to match the keying system and security level.
- Vertical key or dimple key: the keyway profile is chosen to suit the existing key system on the project.
- 30-80 mm A and B lengths: one cylinder family covers door thicknesses from thin interior doors to thicker entrance leaves.
- EN 1303 marking: the cylinder is built to the European cylinder standard, which gives specifiers a reference point on the datasheet.
- Optional anti-drill housing and plug protection: hardened elements can be added on either the housing or the plug side.
- Optional anti-pick, anti-bump and modular versions: security and service features are selected per order instead of being fixed.
Product Specifications
| Product type | Euro profile cylinder with thumbturn (cylinder with knob, DIN profile) |
|---|---|
| Standard | EN 1303 |
| Housing material | Brass |
| Plug material | Brass |
| Key material | Brass (optional) |
| Number of keys | 3 (optional) |
| Key type | Vertical key, dimple key |
| Active pins | 6 (4-7 optional) |
| Passive pins | 6 (4-7 optional) |
| Size A | 30 mm (30-80 mm optional) |
| Size B | 30 mm (30-80 mm optional) |
| Length L | 60 mm (optional) |
| Fixing screw | M5 x 55 (40-80 mm optional) |
| Cam type | DIN cam (optional) |
| Keying possibilities | KA, CE, MK, GMK |
| Anti-drill protection, housing | 1 (optional) |
| Anti-drill protection, plug | 2 (optional) |
| Anti-pick protection | optional |
| Anti-bumping protection | optional |
| Modular construction | optional |
| Anti-snap bar | none (optional) |
| Anti-breaking bar | none (optional) |
| Removable knob construction | none (optional) |
| Finish | brass, polished brass, satin nickel, polished chrome, matt chrome |
Configurations & Options
| Length A/B | 30 mm standard, 30-80 mm to order; match A and B to the door thickness and the escutcheon on each side. |
|---|---|
| Key type | vertical key or dimple key; pick the profile that matches the keys already issued on the site. |
| Pin count | 6 active and 6 passive pins standard, 4-7 optional; higher counts suit master-keyed systems. |
| Keying system | KA (keyed alike), CE (keyed to differ), MK (master key) or GMK (grand master key). |
| Security options | anti-drill housing (1) and plug (2), anti-pick, anti-bumping, anti-snap bar, anti-breaking bar, each specified separately. |
| Modular version | optional, for sites that want to re-key or swap the cylinder without replacing the whole unit. |
| Fixing screw | M5 x 55 standard, 40-80 mm optional to suit door prep. |
| Finish | brass, polished brass, satin nickel, polished chrome or matt chrome. |
Industrial Applications
- Euro profile cylinder with thumbturn for residential doors: door manufacturers and builders fit it on front and back entrance leaves, where the homeowner needs a one-hand exit and the outside stays keyed; the 30-80 mm A/B range covers common leaf thicknesses.
- Euro profile cylinder with thumbturn for apartment entrance doors: property managers and locksmiths use it on multi-unit blocks, because the thumbturn gives egress during an emergency and the KA/MK keying options let one key serve common areas.
- Euro profile cylinder with thumbturn for commercial office doors: fit-out contractors specify it on internal office and meeting-room doors, where staff move in and out all day and the dimple key restricts access to authorised holders.
- Euro profile cylinder with thumbturn for rental property lock replacement: landlords and maintenance teams order it to replace worn cylinders between tenancies, and the optional modular construction lets the plug be re-keyed without changing the door hardware.
- Euro profile cylinder with thumbturn for fire exit doors: specifiers choose it where a door must open from the inside without a key, and the EN 1303 marking gives the hardware schedule a standard to cite.
Key Advantages
- Keyless egress on one side cuts exit time in an emergency, and the outside face still takes a key, so the door is not left unsecured.
- Brass on housing, plug and key keeps the wear surfaces consistent, which matters on entrance doors that cycle dozens of times a day.
- The 30-80 mm A/B range means one cylinder family fits a whole project, so the buyer stocks fewer part numbers.
- Keying options (KA, CE, MK, GMK) are set at order, so a master-keyed building does not need a separate cylinder line.
- Security features are selectable per order, which lets the buyer price a basic door and a high-security door from the same datasheet.
- The EN 1303 reference on the datasheet gives the specifier a standard to quote in the hardware schedule.
How to Choose the Right Configuration
| Standard 30 mm A/B, 6-pin, vertical key | suits interior and apartment doors of standard thickness where a basic keyed-alike or keyed-to-differ system is enough. |
|---|---|
| Extended 30-80 mm A/B | for thicker entrance leaves or doors with deep escutcheons; measure both sides before ordering. |
| Dimple key version | for projects where the key system is already dimple-profile or where a higher pin count is being specified. |
| KA or CE keying | KA for landlords and small sites that want one key for several doors; CE where every door needs its own key. |
| MK or GMK keying | for multi-unit buildings and commercial sites that need a master-key hierarchy across doors. |
| Anti-drill, anti-pick or anti-bump options | for entrance doors on higher-risk sites; specify housing (1) and plug (2) protection separately. |
| Modular version | for rental and facilities teams that expect to re-key without replacing the cylinder body. |
Why Choose Us
We quote the euro profile cylinder with thumbturn price against your A/B lengths, keying system and security options, so the figure you receive matches the part you will fit. As a manufacturer we build to the EN 1303 cylinder with knob specification and can supply the datasheet with the order. OEM and ODM work is handled on the same line: your key profile, your finish, your marking. Spare keys and replacement cylinders ship from the same production batch, and we hold spare parts for the models we supply so a replacement does not wait on a new production run. Technical support on fitting, keying and finish is handled by the same sales engineer who quoted you, before and after delivery. For buyers comparing a supplier China option, we send the specification sheet first and the sample second, so the technical fit is settled before freight is booked.
Factory Strength
Production runs in-house from brass component machining through plug and housing assembly, pinning, key cutting and final inspection. Cylinders are checked against the ordered pin count, keying system and A/B length before packing, and the thumbturn action is cycled as part of the final check. Finishes are applied and inspected on site. Export orders are packed for sea and air freight and shipped to door-hardware distributors, locksmith wholesalers and OEM door manufacturers. The plant builds to the EN 1303 cylinder with knob standard, and each batch is traceable to its production run.
Quality Control
Incoming brass stock is checked before machining, and plug and housing dimensions are verified in process. Final inspection confirms pin count, keying, A/B length, thumbturn operation and finish before packing. Each batch is traceable to its production run, and the cylinder is built to the EN 1303 marking stated on the datasheet.
- Incoming brass material check before machining
- In-process dimension checks on plug and housing
- Final check of pin count, keying and A/B length
- Thumbturn operation and finish inspection before packing
Packaging & Delivery
Cylinders are packed individually and boxed for export, with keys and fixing screws included as ordered. Carton and pallet quantities are confirmed per order because A/B length and keying change the packed size. Shipment is by sea or air freight from China, with trade terms and lead time confirmed at quotation. The buyer supplies the delivery address, the required trade term and any marking or labelling instructions before production is scheduled.
- Individual packing with keys and M5 x 55 screws as ordered
- Export cartons and pallets sized to the ordered lengths
- Sea or air freight from China; terms confirmed at quotation
- Lead time confirmed once keying and options are fixed
FAQ
What is a euro profile cylinder with thumbturn used for?
It is a DIN-profile lock cylinder with a knob on the inside face and a key on the outside. It is used on entrance, apartment and office doors where occupants need to open the door from inside without a key.
What do the A and B measurements mean on the datasheet?
A is the length from the cam centre to one end of the cylinder and B is the length to the other end. The standard is 30 mm each side, with 30-80 mm available to order, so measure both sides of the door before specifying.
Which keying system should I order, KA, CE, MK or GMK?
KA gives one key for several cylinders, CE gives each cylinder its own key, MK sets up a master key, and GMK sets up a grand master key. Tell us how many doors and how many authority levels the site has, and we will map it.
Can the cylinder be supplied with anti-drill and anti-bump protection?
Yes. Anti-drill protection is available for the housing (1) and the plug (2), and anti-pick and anti-bumping protection are optional. These are specified per order, so list them on the enquiry.
Can the euro profile cylinder with thumbturn be used for fire exit doors?
The thumbturn gives keyless egress from the inside, which is why it is often specified on fire exit doors. Confirm the door hardware and local code requirements with your specifier before ordering.
What is the euro profile cylinder with thumbturn price and how do I get a quotation?
Price depends on A/B length, key type, pin count, keying system and the security options selected. Send those details and the quantity, and we will quote the exact configuration.
What is your MOQ and lead time for a trial order?
MOQ and lead time are set per order because keying and length options change the production run. Send your specification and target quantity, and we will confirm both before you commit.
Do you supply the euro profile cylinder with thumbturn datasheet and samples?
Yes. We send the specification sheet first so the technical fit is settled, then a sample for approval. The datasheet lists the EN 1303 marking, materials, pin counts and available options.
Can you produce the brass euro thumbturn cylinder under our own brand?
OEM and ODM work is handled on the same line, including key profile, finish and marking. Send your drawing or sample and the quantity, and we will confirm what can be produced.
