# Smart lock cylinder NUKI Cisa Astral S 40/40 — mechanical profile 40/40

**URL:** https://aio.lv/en/product--nuki-220246--4222865
**Data updated:** 2026-02-12 14:06 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** NUKI
**Manufacturer code:** 220246
**EAN:** 8015345674429
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 16.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--nuki-220246--4222865

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Friday | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

NUKI Cisa Astral S 40/40 is a mechanical lock cylinder with a 40/40 profile length. Designed for use in door locking systems, it provides a symmetric 40 mm on each side for standard euro-profile fittings. Suitable for residential or commercial doors that require a matching 40/40 cylinder, it enables secure mechanical locking and straightforward replacement or installation in compatible locks.

## Long description

NUKI Cisa Astral S 40/40 is a mechanical lock cylinder with a symmetric 40/40 euro-profile length designed for standard door locking systems. It offers a straightforward mechanical solution for residences or commercial premises that require a 40 mm length on both sides, enabling direct replacement or installation in compatible euro-profile locks. The cylinder is intended to fit typical euro-profile door hardware and to provide reliable mechanical operation for everyday locking and unlocking.
Advantages
The cylinder’s symmetric 40/40 profile simplifies selection and installation where identical side lengths are required. As a mechanical euro-profile cylinder, it is compatible with many standard lock cases and fittings, allowing easy replacement without modifying the door or lock body. The design focuses on stable mechanical performance and straightforward operation for keyed access.
Suitable for
 Residential front doors with euro-profile locks
 Apartment and flat entry doors requiring a 40/40 cylinder
 Commercial interior doors using standard euro-profile cylinders
 Replacement of worn or non-functioning 40/40 mechanical cylinders
Key specifications
 Profile type: Euro-profile cylinder
 Length configuration: Symmetric 40 mm / 40 mm
 Operation: Mechanical keyed cylinder
 Compatibility: Designed for standard euro-profile lock cases and door fittings
 Application: Indoor and outdoor door locking where euro-profile cylinders are used
How to use
To install, remove the existing cylinder following the lock manufacturer’s instructions, align the NUKI Cisa Astral S 40/40 cylinder with the door lock case and secure it with the central fixing screw. Insert the matching key to check smooth turning and proper engagement with the lock mechanism from both sides. Ensure the cylinder is seated flush with the door escutcheon and test locking/unlocking several times to confirm correct operation before regular use.
Usage recommendations
Verify that your door and lock case accept a euro-profile cylinder with symmetric 40/40 dimensions before purchase. Use the correct length to avoid protrusion or internal misalignment. Regularly lubricate the cylinder with a graphite or manufacturer-recommended lubricant and operate the key gently to maintain long-term mechanical reliability.

## FAQ

### How much does the NUKI Cisa Astral S 40/40 lock cylinder cost, and is it available for purchase?

The price is 19.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10000 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Friday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All NUKI products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized NUKI service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4222865/59878969_large.webp