Swiss Profile Cylinder with Thumbturn
A Swiss profile cylinder with thumbturn in brass, EN 1303 compliant with a 6-pin active and passive stack (5-7 optional). The knob side gives free egress for apartment and entrance doors, while the keyed side takes a vertical dimple key. A and B lengths run 30-80 mm, with KA, CE, MK and GMK keying for locksmiths and door manufacturers.
Product Overview
The Swiss profile cylinder with thumbturn is a brass lock cylinder in the Swiss and oval cylinder category, built for entrance and interior doors where the inside needs to open without a key. It carries EN 1303 compliance, a 6-pin active and passive pin stack, and a thumbturn on one side with a keyed side on the other. Housing, plug and key are brass, and A and B lengths run from 30 to 80 mm.
That layout solves a daily problem for property managers and door fitters: egress on the inside without handing out an extra key, while the outside stays keyed. The thumbturn also lets a door be locked from inside at night and opened in an emergency without searching for a key.
Key Features
- Thumbturn on one side: the door opens from inside without a key, so exit does not depend on finding one.
- Brass housing, plug and key: the three wear surfaces are the same alloy, which keeps turning feel consistent over cycles.
- 6 active plus 6 passive pins: standard pinning gives a usable key differs, with 5-7 pin stacks available to order.
- Swiss profile body: fits Swiss-profile mortise locks and the matching escutcheons already on the door.
- A and B from 30 to 80 mm: one cylinder family covers thin interior doors and thicker entrance doors.
- EN 1303 reference: the cylinder is built to the EN 1303 frame, so it can be specified alongside other EN hardware.
- KA, CE, MK and GMK keying: one key can serve a single door or a whole building, depending on what you order.
- Vertical dimple key: the keyway takes a dimple-cut key rather than a traditional edge-cut blank.
Product Specifications
| Product type | Swiss profile cylinder with thumbturn |
|---|---|
| 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 (5-7 optional) |
| Passive pins | 6 (5-7 optional) |
| Size A | 30 mm (30-80 mm optional) |
| Size B | 30 mm (30-80 mm optional) |
| Overall length L | 60 mm (optional) |
| Fixing screw | M5 x 70 (40-80 mm optional) |
| Cam type | DIN cam (optional) |
| Keying possibilities | KA, CE, MK, GMK |
| Finish | Brass, polished brass, satin nickel, polished chrome, matt chrome |
| Anti-drill, anti-pick, anti-bump, anti-snap | available on request |
| Modular version | available on request |
Configurations & Options
| Length A/B 30/30 mm | standard 60 mm overall for standard door thickness; order other A/B splits when the door is thicker. |
|---|---|
| Length A/B up to 80 mm | for thicker entrance and fire-rated door leaves where the standard 60 mm does not reach. |
| Pin count 6/6 | standard pinning; 5 or 7 active and passive pins available where a different key differs is required. |
| Keying KA | all cylinders in the order open on one key, for a single landlord or a small block. |
| Keying MK or GMK | master key and grand master key suites for buildings with several access levels. |
| Finish | brass, polished brass, satin nickel, polished chrome or matt chrome to match the door hardware. |
| DIN cam | specify when the lock case expects a DIN-pattern cam rather than the standard cam. |
| Fixing screw M5 x 70 | standard; 40-80 mm lengths available to suit the door and lock case. |
Industrial Applications
- Swiss thumbturn cylinder for entrance doors: entrance doors in residential blocks and offices need keyed access outside and free exit inside; the thumbturn gives that without a second key, and the brass body takes the daily cycle load.
- Swiss thumbturn cylinder for apartment doors: landlords and housing associations fit these so tenants can lock up from inside at night; the KA option keeps one key per unit while maintenance holds a master.
- Swiss thumbturn cylinder for office partitions: glazed and partitioned office doors use the thumbturn on the staff side so people leave without a key; the satin nickel and chrome finishes match aluminium door furniture.
- Swiss thumbturn cylinder for rental properties: short-let and serviced apartments rekey between guests; the 6-pin stack and optional 7-pin version let the owner set the differs they need.
Key Advantages
- Thumbturn plus keyed side removes the extra key from the inside: fewer keys cut, fewer lost, and exit does not depend on a key being within reach.
- Brass on all three wear parts keeps the turning action consistent, which matters on entrance doors that cycle dozens of times a day.
- One cylinder family from 30 to 80 mm means a fitter can stock one line and still cover thin and thick doors on the same site.
- KA, MK and GMK keying options let a small landlord and a multi-building operator buy from the same product without a separate suite.
- EN 1303 as the reference standard gives the specifier a documentable basis when the door hardware schedule lists EN hardware.

How to Choose the Right Configuration
| Standard 30/30 mm, 6-pin, KA | single apartment or small rental unit where one key per door is enough and the door is standard thickness. |
|---|---|
| 30/30 mm with MK or GMK | buildings with common areas and several access levels; the suite decides the order, not the cylinder body. |
| Longer A/B up to 80 mm | entrance doors and fire-rated leaves where the 60 mm overall length leaves the cylinder short of the escutcheon. |
| 5 or 7-pin version | sites that need a different key-differ count from the standard 6-pin stack. |
| DIN cam | lock cases that take a DIN-pattern cam; confirm the cam shape before ordering. |
| Satin nickel or chrome finish | aluminium or stainless door furniture where brass finish would look out of place. |
Why Choose Us
We quote the Swiss profile cylinder with thumbturn price against the exact A/B split, pin count and keying you need, so the figure you receive matches the cylinder that ships. As a manufacturer, we cut and assemble the pin stacks in-house, which is why a 7-pin or GMK order does not sit in a queue behind stock items. Buyers sourcing from a supplier China-based will find the full specifications and datasheet available before the order, not after. OEM packing and key stamping can be arranged on repeat orders. Spare keys and replacement cylinders for an existing suite are quoted from the original keying record. Warranty terms, after-sales handling and spare-part availability are confirmed in writing with your quotation, and technical support on pinning, keying records and installation is available from the same team that builds the cylinder.
Factory Strength
Cylinder bodies, plugs and keys are machined and assembled in-house, and pin stacks are built to the keying schedule on the order. Each unit is checked for key insertion, thumbturn rotation and cam engagement before it is packed, and keyed suites are tested against the master and sub-master keys together rather than one cylinder at a time. Export orders ship with the keying chart and the finish reference attached to the carton, so the receiving site can match cylinders to doors without opening every box.
Quality Control
Incoming brass stock is checked for alloy and dimension before machining. In-process checks cover plug bore, pin chamber depth and cam fit. Final inspection turns every thumbturn, inserts and removes the key, and confirms the keying against the schedule. Keyed suites are tested as a set.
- Incoming brass: alloy and dimensional check on each batch
- In-process: plug bore, pin chamber depth, cam fit
- Final: key insertion and removal, thumbturn rotation, cam engagement
- Keying: master and sub-master tested together before packing
Packaging & Delivery
Cylinders are packed individually with the keys and fixing screw, then boxed by keying group so a suite stays together. The keying chart and finish reference travel with the carton. Trade terms, port and lead time are confirmed on the quotation, since they depend on the keying and finish mix in the order.
- Individual packing: cylinder, keys and M5 fixing screw per unit
- Suite packing: keyed groups boxed together with the keying chart
- Carton marking: finish reference and door schedule reference on the label
- Documents: keying chart and packing list issued with the shipping documents
FAQ
What is a Swiss profile cylinder with thumbturn used for?
It fits Swiss-profile mortise locks on doors that need keyed access from outside and free exit from inside. The thumbturn replaces the inside key, so the door opens without one.
How does the thumbturn side differ from the keyed side?
The keyed side takes the dimple key and drives the cam through the pin stack. The thumbturn side turns the cam directly, so no key is needed to open or lock from inside.
What pin count should I order?
Six active and six passive pins is the standard. Five or seven pins are available when the site needs a different key-differ count; tell us the requirement and we will confirm which fits.
Can the EN 1303 Swiss cylinder knob be supplied in a master key suite?
Yes. KA, CE, MK and GMK keying are all listed options. Send the suite structure and door list, and the pinning is built to that schedule.
Can this cylinder be used on apartment entrance doors?
Yes. The thumbturn gives tenants a night lock without an extra key, and the KA or MK options cover single units or a whole block. Confirm the door thickness so the A/B split is right.
Do you supply the brass Swiss cylinder with knob for office partitions?
Yes, in satin nickel, polished chrome or matt chrome to match aluminium door furniture. The thumbturn goes on the staff side, the keyed side on the corridor side.
What is the price and how do I get a quotation?
Price depends on the A/B length, pin count, keying and finish. Send those four details and we will quote the Swiss profile cylinder with thumbturn price for your quantity.
What is your MOQ and lead time?
MOQ and lead time depend on the keying and finish mix, and on whether the order is stock pinning or a custom suite. We confirm both on the quotation once the configuration is fixed.
Can you supply a datasheet and OEM packing?
Yes. The specifications and datasheet are available before the order, and OEM packing and key stamping can be arranged on repeat orders. Payment terms are confirmed with the quotation.