Electrical installation and event technology with a focus on equestrian tournament services such as timekeeping, scoreboards and public address systems
Gräffker Elektronik GmbH
48231 WarendorfNew on Amplifa
About us
Gräffker Elektronik GmbH from Warendorf is an electrical engineering and event technology company founded in 1966 by Otto Gräffker. Its service portfolio includes installations of high-current, low-current and public address systems as well as alarm, fire alarm, telephone and intercom systems. A second focus is on technology and services for events, especially in equestrian sports: timekeeping systems with live scoring, scoreboards (7-segment and LED), judges' towers, arena public address systems, video walls, mobile power and floodlight systems. The systems are operated by cable or radio and can be combined with electronic large displays. References include the DOKR Warendorf, the German Show Jumping Championship of professional riders, and racecourses in Hannover, Krefeld, Cologne and Berlin. The managing director is Raimund Gräffker, a master electrician with the company since 1985.
- Site
- Warendorf
- Processes
- Electrical installation (high-current, low-current and public address systems), Lighting/public address technology (arena public address, loudspeaker systems), Timekeeping systems/live scoring (wired or radio, for show jumping and eventing), Scoreboards (7-segment, monochrome/colour graphics-capable LED boards) and mobile video walls up to, Judges' towers (several variants including a mobile trailer), Mobile power for events, Floodlight systems, Alarm, fire alarm, telephone and intercom systems
- Materials
- High-current installation, Low-current installation, Public address technology, Timekeeping systems / Live scoring
- Certificates
- Certificates
- Founded
- 1966
- Industries
- Equestrian sports/events, Electrical installation, Event technology
- 01
Engineering and planning
- 02
Design of the systems
- 03
Installation and assembly
- 04
On-site operation and service
- 05
Rental of systems
Service areas
High-current installation
All electrical installations for buildings and event venues.
Low-current installation
Alarm, fire alarm, telephone and intercom systems.
Public address technology
Tournament grounds and site public address, including a 12 m high loudspeaker mast.
Timekeeping systems / Live scoring
Wired or radio systems for show jumping and eventing including TV on-screen graphics.
Locations
Warendorf
DEHeadquarters
Systems and installations
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Electrical installation (high-current, low-current and public address systems)Assembly | – | – | – | – | – |
| Lighting/public address technology (arena public address, loudspeaker systems)Assembly | – | – | – | – | – |
| Timekeeping systems/live scoring (wired or radio, for show jumping and eventing)Engineering | – | – | – | – | – |
| Scoreboards (7-segment, monochrome/colour graphics-capable LED boards) and mobile video walls up toEngineering | – | 7,68 m × 4,8 m | – | – | – |
| Judges' towers (several variants including a mobile trailer)Engineering | – | – | – | – | – |
| Mobile power for eventsAssembly | – | – | – | – | – |
| Floodlight systemsAssembly | – | – | – | – | – |
| Alarm, fire alarm, telephone and intercom systemsAssembly | – | – | – | – | – |
| Site public address with a 12 m high loudspeaker mastAssembly | – | 12 m | – | – | – |
Additional services
Reference customers
Quality
The quality of the electrical installations rests on the managing director's master electrician qualification; no certificates are specified.
| Evidence | Warendorf |
|---|---|
| Certificates |
History
- 1958
Otto Gräffker gains experience in electrical engineering and electronics and rents out loudspeaker systems at smaller events.
- 1964
Construction of a timekeeping system, probably the first electronic digital system on the market.
- 1966
Founded as a sole proprietorship by Otto Gräffker.
- 1985
Conversion into a GmbH; son Raimund Gräffker joins after completing his training as an energy systems electronics technician.
- 1996
Raimund Gräffker passes the master craftsman examination.
- 2016
Presentation of the golden master craftsman's diploma to Otto Gräffker.