
Manufacturer of high-performance seals for hydraulics, rotating systems and heavy industry since 1981

Dichta SA
Balerna (CH) · Barlassina (IT) · Leinì (IT)New on Amplifa
About Dichta
Dichta SA, headquartered in Balerna (Switzerland), has been developing, producing and distributing technical sealing products for industrial applications since 1981. The range includes shaft seals (Rubber OD, Metal OD, PTFE lip seals), Rubber-Fabric seals (Radiaseal®), V-Rings (Frontseal®), O-rings, hydraulic and pneumatic seals such as rod and piston seals, wipers and guide bands, bonded seals, mechanical face seals, spring-energized PTFE seals (DTS series) and further special products. Materials are elastomers including NBR, HNBR, FPM, MVQ, EPDM, PU and FFKM, as well as thermoplastics such as PTFE, MPTFE, PEEK, POM, PA and UHMW-PE; metal components include carbon steel, brass and stainless steel springs. Since 2023, the group has had in-house machining capacity for milled seals (Machined Seals) from prototype to series production. The group is certified to ISO 9001:2015 and ISO 14001:2015, offers batch traceability via QR code, a large warehouse with online availability, an e-shop and serves customers through a worldwide distribution network on all continents.
- Site
- Balerna
- Processes
- Rotary Shaft Seals (Rubber OD, Metal OD, C-O PTFE Lip Seals), Radiaseal® Rubber-Fabric Seals, Frontseal® / V-Rings, O-Rings, Vibration Dampers, Bonded Seals, Mechanical Face Seals, Hydraulic & Pneumatic Seals (Rod & Piston Seals, Wiper Seals, Lip Seals, Packing Seals, Guide
- Materials
- Nitrile Rubber (NBR), Hydrogenated Nitrile Rubber (HNBR), Fluorinated Rubber (FPM), Silicone Rubber (MVQ), Chloroprene Rubber (CR), Polyacrylic Rubber (ACM), Ethylene Propylene Rubber (EPDM), Polyurethane (PU)
- Certificates
- ISO 9001:2015, ISO 14001:2015
- Founded
- 1981
- Industries
- Steel/iron industry (hot/cold rolling mills, continuous casting, forging, Cement industry, Paper industry, Hydraulics (cylinders, presses, actuators), Rotating systems, Construction and earthmoving machinery
- 01
Design and Technical Support
- 02
Material selection
- 03
Manufacturing (including in-house machining of Machined Seals)
- 04
Batch traceability (QR code)
- 05
Large warehouse and e-shop
- 06
Worldwide distribution via distributor network
Locations
Balerna
CHHeadquarters, sales and warehouse
Barlassina (MB)
ITProduction and sales
Leinì (TO)
ITProduction (Digom S.r.l.)
Products



Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Rotary Shaft Seals (Rubber OD, Metal OD, C-O PTFE Lip Seals)Plastics | – | – | – | – | NBR, FPM, MVQ, HNBR, FFKM, PTFE |
| Radiaseal® Rubber-Fabric SealsPlastics | – | – | – | – | Rubber-fabric (Rubber-Fabric) |
| Frontseal® / V-RingsPlastics | – | – | – | – | NBR, FPM |
| O-RingsPlastics | – | – | – | – | NBR, FPM, MVQ, EPDM, FFKM |
| Vibration DampersPlastics | – | – | – | – | Elastomers |
| Bonded SealsPlastics | – | – | – | – | NBR, FPM |
| Mechanical Face SealsPlastics | – | – | – | – | NBR, FPM |
| Hydraulic & Pneumatic Seals (Rod & Piston Seals, Wiper Seals, Lip Seals, Packing Seals, GuidePlastics | – | – | – | – | PU, NBR, FPM, PTFE, PTFE + bronze, PTFE + glass + MoS2 |
| Polyurethane Seals (Piston Seals, Wiper Seals, Rod Seals)Plastics | – | – | – | – | PU |
| Machined Seals (in-house machining, prototyping to series production)Machining | – | – | – | – | PTFE, MPTFE, PEEK, POM, PA, UHMW-PE, PU, FFKM |
| Spring Energized PTFE Seals (Single/Double Acting Compact, Spring Energized, DTS series)Plastics | – | – | – | – | PTFE, MPTFE |
| Stainless Steel SpringsForming | – | – | – | – | Stainless steel |
| End CoversPlastics | – | – | – | – | – |
| Thermal Insulation SheathsPlastics | – | – | – | – | – |
| Hollow Seals for Static ApplicationsPlastics | – | – | – | – | Elastomers |
| Grease Rings for AxlesPlastics | – | – | – | – | Elastomers |
| Dam Gate SealsPlastics | – | – | – | – | Elastomers |
| Inflatable SealsPlastics | – | – | – | – | Elastomers |
| Flat GasketsPlastics | – | – | – | – | Elastomers |
| Hydraulic Cylinder Seals (DP6 8÷900 mm, DP9 250÷1800 mm, CPPT1/CPPT2 25÷1200 mm, WM 25÷400 mm,Plastics | – | – | – | – | NBR, FPM, PTFE, PTFE + glass, PTFE + bronze, PTFE + glass + MoS2, PU, Carbon steel, brass |
| Custom/Bespoke Seal Solutions (in-house technical/design team)Engineering | – | – | – | – | – |
Additional services
Quality
Quality management is certified to ISO 9001:2015 and ISO 14001:2015 (SQS, Reg. H45225) and covers the Balerna, Barlassina and Leinì sites. All products are supplied with full batch traceability via a QR code system.
| Evidence | Balerna | Barlassina (MB) | Leinì (TO) |
|---|---|---|---|
| ISO 9001:2015 | |||
| ISO 14001:2015 |
History
- 1981
Founded – 'High performance seals since 1981'
HIST catalog: >30 years of experience, development into a 'world class supplier' with production facilities in Italy and the Far East
- 2023
New in-house machining capacity for Machined Seals (prototyping to series production)