
Development, design and manufacture of maintenance-free, dry-running shaft seals as cartridge seal systems

Antriebs- und Dichtungstechnik GmbH
47608 Geldern (Robert-Bosch-Str. 16) · GermanyNew on Amplifa
About us
Antriebs- und Dichtungstechnik GmbH (A T D GmbH), based in Geldern, specializes in the development, design, optimization and manufacture of seal systems for shaft sealing. The seal systems are supplied as cartridge seals, fully pre-assembled and ready to install. The dynamic sealing elements used are mainly sealing elements made of modified PTFE; the systems are maintenance-free and dry-running, with permanent temperature resistance up to +290 °C. For the food industry, white FDA-approved sealing materials (MAF288) are used. The patented systems – including those with an SMA module, bellows, integrated bearing and Type EDS – are used in agitators, screw conveyors, dryers, rotary valves, centrifuges, kneaders and mixers as well as in the pharmaceutical, chemical and plant engineering industries.
- Site
- Geldern
- Processes
- Development, design, optimization and manufacturing of seal systems (shaft seals), Manufacturing of cartridge seals (fully pre-assembled, ready to install), Floating shaft seal with SMA module (low dead space, maintenance-free), Floating shaft seal with bellows, Seal systems with integrated bearing (cartridge design, tapered roller bearings in O arrangement), Shaft seal Type EDS (bearing and seal in one cartridge, maintenance-free, dry-running), Development, Design
- Materials
- Modified PTFE, White FDA-approved sealing material MAF288, Elastic elastomer (SMA module), Standard steel, Metallic bellows, White FDA-approved sealing material (MAF288)
- Industries
- Food, Pharmaceuticals, Chemicals, Plant engineering, General industry
- 01
Development
- 02
Design
- 03
Optimization
- 04
Manufacturing
- 05
Pre-assembly (ready-to-install cartridge seals)
- 06
Shipping from the Geldern warehouse
Materials and seal systems
Modified PTFE
Dynamic sealing elements for shaft seals with high chemical resistance.
White FDA-approved sealing material (MAF288)
Primary seals for the food industry.
Elastic elastomer (SMA module)
Connecting element between the seal and the housing wall, which follows shaft movements and avoids dead space.
Standard steel
Standard material for housings and Type EDS cartridge seal systems; other materials available on customer request.
Metallic bellows
Compensation of shaft deflections, impacts and bending in floating seal systems.
Location
Geldern
DEHeadquarters, manufacturing and warehouse
- Materials
- Modified PTFE, elastomer, standard steel, FDA-approved sealing materials
Shaft seals


Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development, design, optimization and manufacturing of seal systems (shaft seals)Engineering | – | – | – | – | modified PTFE, elastic elastomer, standard steel, white FDA-approved sealing materials |
| Manufacturing of cartridge seals (fully pre-assembled, ready to install)Assembly | – | – | – | – | modified PTFE, standard steel |
| Floating shaft seal with SMA module (low dead space, maintenance-free)Assembly | – | – | – | – | modified PTFE, elastic elastomer |
| Floating shaft seal with bellowsAssembly | – | – | – | – | modified PTFE, metallic bellows |
| Seal systems with integrated bearing (cartridge design, tapered roller bearings in O arrangement)Assembly | – | – | – | – | modified PTFE |
| Shaft seal Type EDS (bearing and seal in one cartridge, maintenance-free, dry-running)Assembly | – | – | – | – | standard steel, modified PTFE |
Additional services
History
Over 30 years of experience in shaft sealing (information from the website without year specification)