Application Overview Cavity ProductionChecking Surface Tension and Pre-TreatmentChoice of GlueDosage and SettingPost-Cleaning and Curing

Cavity production


Many Swarovski crystals require cavities in order to be applied to materials. A properly produced cavity in combination with a suitable gluing system ensures a stylish, long-lasting application. The cavity makes it easy to glue properly and ensures a higher protection of the crystal against mechanical and chemical stress.

There are several different production methods and cavity types. Always take into consideration the requirements and base material of the finished product when choosing the appropriate cavity, pre-treatment method and kind of glue.


Production methods

  • Drilling is when materials are machined using a power drill and drilling tool.
  • Milling is when materials are machined using a milling machine and milling cutter. Milling machines can be fitted with appropriate tools depending on the materials, e.g. for working with metal and plastic, wood or natural stone. Modern CNC machining centers offer the greatest precision and can be used to produce cavities of every shape necessary. Please note that when machining natural stone, ceramic or glass, for example, special diamond-tipped tools must be used.
  • Water jet cutting allows materials to be separated via a high-pressure jet of water. Economic reasons make water jet cutting machines ideal for certain crystal shapes that are integrated into flat materials. Please note that only end-to-end cavities can be produced in this way. In addition, materials which swell through water cannot be worked with. Absorbent materials must be fully dried before gluing the crystal.
  • Casting: To reproduce cavities, particularly in the jewelry sector, the cavities can be made when the metal component is cast. When following this process, the cavities must be cut into the original model. To prevent the bottom of the cavity being rounded off, which would result in the crystal sitting too high, it is recommended that an additional indentation is made when producing the original model.

Further instructions on jewelry production can be found in the “Soldering, plating and stone setting” chapter.


Cavity types

Depending on the Swarovski crystal used, various cavity types can be made using the different production methods.

Here you can find a tool for an easy calculation of the right chaton cavity:

Swarovski Cavity Calculator

Cavity calculator for XILION and XIRIUS Chatons.

XLS 0.2 MB
Last Update: 07 / 2016

Download now
SWAROVSKI CRYSTALS PRODUCTION METHODCAVITY TYPE
Round Stones Drilling
Milling

Optimal cavity for XILION and XIRIUS Chatons

Optimal cavity for XILION and XIRIUS Chatons


The optimal cavity for a XIRIUS Chaton is produced at an angle of 95° – 98°, for a XILION Chaton at 90° – 93°. The cavity should have the same maximum diameter as the crystal plus at least 0.1 mm. The stone sizes available for Swarovski crystals can be found here. For particularly large crystals with a prominent girdle, it is advisable to use an additional countersinking process. Please find a cavity calculator for XILION and XIRIUS Chatons above this table.

Round Stones Casting

Chaton casting cavity

Chaton Casting Cavity


For jewelry manufactured by casting, an additional indentation at the bottom of the cavity can be drilled to avoid a rounded tip, therefore preventing the crystal from being raised out of the cavity.

Flat Backs No Hotfix

Crystal Fabric

Crystaltex

Self-adhesive
Elements

Crystal Rocks

Crystal Fine Rocks
Milling
Casting

Indentation

Indentation


When gluing Swarovski crystals with a flat back, it is also advisable to create a cavity as shown here.
This cavity ensures the crystal is better protected against mechanical and chemical stress. The depth of the cavity depends on the height of the girdle and/or the strength of the base material.

Round Stones

Flat Backs No Hotfix

Fancy Stones
Drilling
Milling
Water jet cutting

End-to-end cavity

End-to-end cavity


An end-to-end cavity is the simplest option when producing cavities. When selecting the glue, please note the additional instructions regarding the gluing gap.

Plastic Trimmings

Crystal Mesh

Fancy Stones
Milling
Casting

Blind hole

Blind hole


A blind hole is another option when producing cavities. It allows Swarovski crystals in a variety of heights to be set and protected in the material. When selecting the depth of the cavity, ensure that there is still a gap between the lowest point of the crystal and the base material. When selecting the glue, please note the additional instructions regarding the gluing gap.


Fancy Stones Milling
Casting

Step milling

Step milling


Compared to a simple blind hole, step milling offers better hold of the crystal with less glue. When selecting the depth of the cavity, ensure that there is still a gap between the lowest point of the crystal and the base material. When selecting the glue, please note the additional instructions regarding the gluing gap.

Fancy Stones Milling
Casting

3D milling

3D milling


3D milling offers an optimum fit with the smallest gluing gap. Due to the fact that the cavity is adapted to the contours of the crystal, CNC milling machines are required.


Production tolerances for cavities


When producing cavities, the dimensions should be based on the main dimensions, including the maximum tolerance for the crystal components used, and the production tolerance. These dimensions can be requested from your Swarovski sales organization.

Incorrect cavities