PRÖPSTER GMBH | Company

1979

Company founded by J. Pröpster sen.
in an old forge in Berg

Picture left: The first shop window of the Pröpster company in Berg.
Picture right: The vehicle of the young company

1980

Straightening device for strips
the first development from J. Pröpster

The first in-house development in the field of lightning protection is the straightening device for strips for simplified strip installation.

Background: production of the in-house developed halogen operating lights.

1981

The most varied lightning protection component worldwide
System Multi-clamp

The original Multi-clamp was invented by J. Pröpster in 1981 and since than been established a million times worldwide. It is the most varied lightning protection component and the centerpiece of the multifunctional system of J. Pröpster.
The universal use of the Multi-Clamp as T-, cross, parallel, thrust and connection clamp is unmatched.
Picture right: Newspaper article (Neumarktes Tagblatt) on the Roof and Wall trade fair in Nuremberg

1982

Complete product series made of stainless steel

Invention of a complete product series made of stainless steel: Clamps, pipe clamps and holders for lightning protection and earth termination systems

Additional new products:
SK- conductor fastener - for a decorative appearance.
USV-clamp - for earth conductors in concrete.

Picture right: Trade fair at OTTI (East Bavarian Technology Transfer Institute)

1983

Relocation to Neumarkt i.d.Opf.

Move to Regensburger Straße in Neumarkt to the new headquarters

Important novelties:
System Bimetal - for all connections and terminals between different materials.
System Multi Plus- with guaranteed 10 cm²: contact surface
System Vario-clamp - for the connection of differently shaped conductors
Introduction of aluminum alloy in lightning protection

1984

Niro-Clip conductor fastener
the first stainless steel Clip in lightning protection

The Niro-Clip conductor fastener used as a roof and wall conductor fastener.

More novelties:
System Diagonal-cross clamp - for earth conductors flat/round.
Earth lead in rods with terminal lug - insulated with different connections
Trapezoidal support - For running conductor lengthwise and crosswise
Roof conductor holder with clamping bracket for slate roofs

1985

Further developments from JP

Universal downpipe clamp - For cutting as required
Wedge connector with catch - for the connection of earth conductors in concrete

1986

rebuild and expansion

In addition to production and development, the renovation and expansion of the headquarters is not neglected.

Novelty of the year:
Duo-Gutter clamp - for the connection of air-termination conductor or down conductor to the gutter.

1987

The construction continues

Picture left: Trade fair company Vontobel Switzerland

Introduction of the Straightening device for round wires and strips

1988

Patented roof conductor holder

Introduction of the Patented roof conductor holder for universal use

Picture left: Johann Pröpster senior at his desk

1989

Pröcolor

Pröcolor - Coated lightning protection components in different colours for a more decorative look.

Picture left: Press article (Neumarkter Tagblatt) about the visit of State Secretary Zeller to the trade fair in Hanover
Picture right: Trade fair appearance in the Jurahalle Neumarkt

1990

Complete program of earthing busbars and equipotential bonding bars

for industrial use and power supply.

1991

Öko 1 - Roof conductor holder

for flat roofs with frostproof natural stone filling

More novelties:
Parallel and cross-terminal clamp - Ideal for the connection of a fixed earthing terminal to the reinforcement.

1992

Opening of Factory 2 in Frankenberg

J.Pröpster Factory 2 in Frankenberg/Saxony is opened. Here, too, renovation and refurbishment work was carried out.

novelties:
Öko 2- Roof conductor holder - for flat roofs pressed concrete block

1993

Insulated lightning protection

System ISO-Stabil
Introduction of air termination rod as system component for the insulated lightning protection.

Background: Plant 2 Frankenberg completed renovated.

More novelties:
Roof conductor holder - universal

1994

DIN ISO 9001

Certification of Factory I Neumarkt and Factory II Frankenberg/SN according to DIN ISO 9001 by DQS and EN 29000 for 16 European countries.
Registration of JP as a trademark

1995

Metal sheets terminal clamp

for damage-free and lightning-current bearing connection to different types of sheets, in particular thin sheets or soft connecting materials.

Picture left: Press article (Neumarktes Nachrichten) Visit of Rudolf Kraus, Member of the Bundestag.

1996

Optimal air termination rod ø 16 mm / ø 10 mm

for the protection of roof structures

Picture right: Press article Neumarter Tagblatt

1997

ISO-Fugal - down conductor wire

With halogen-free plastic coating

More novelties:
Gutter clamp ideal - for the secure connection to gutters.

1998

Lightning current arrester P-BM, type 1

On spark gap basis, smallest encapsulated type 1 arrester (35 kA) in the world, to protect electrical installations against direct lightning current.

1999

Test badge for lightning protection system

For disconnection clamps and conductor holders, for the regular documentation of tests.

2000

Niro-Clip with loose conductor leading

The lightning conductor remains straight despite the temperature-related longitudinal adjustment.

Verleihung des Jobstar der Region Nürnberg.
Picture right: Factory 1 Neumarkt office building

2001

Saddle clamp

For secure connection to metal sheets and steel constructions.

Picture left: Press article from the Neumarktes Tagblatt
Background: Aerial view with new warehouse

2002

Roof conductor holder with tension springs

Universally useable for ridge tiles.

More novelties:
Öko 3-Roof conductor holder - for flat roofs with stainless steel clip

Background: Trade fair appearance Elektrotechnik Dortmund

2003

Earthing kits with federal railway authority EBA approval

railway, bridge and tunnel constructions

Additional novelties:
Combined lightning current and surge arrester P-HMS Typ1+2
Fixed earthing terminal system
Terminal clamp, heavy-duty type - contact stable connections to steel structures

2004

25 years of innovative lightning protection technology

Novelties of the year:
Screwless tape conductor holder - for fixing of 30 mm flat strips.
Roof conductor holder for Kalzip-roofs
JP-MBF lightning protection system - for antennas and roof installations

2005

Surge arrester for photovoltaic systems

For protection against dangerous touch voltages, also with integrated disconnecting clamp.

Further novelty:
CC- Clamp system - For terminals and connections ø 8-10 / ø 16 mm

Picture right: Mittelstandsförderpeis (Award)

2006

Protection measures against touch voltages

for the protection against dangerous touch voltage, also with integrated disconnection clamp (to the store).

Other innovation:
CC clamping system - for connections and joints ø 8-10 / ø 16 mm

Picture on the right: Mittelstandsförderpeis

2007

Roof conductor holder for RIB-Roof 500 System

for installing round conductors to RIB-Roof 500 system.

More novelty:
Connection clamp for earth rods - Connection of strips 30 x 3,5 mm and round conductors ø 10 mm

Picture right: Aerial view of Neumarkt during expansion

2008

Connection clamp

For different combinations ø 6-20 mm and flat 30 x 3,5 mm or ø 10 mm; with M10 clamping screw.

Picture right: Aerial view after expansion

2009

Air termination rod system for all common types of roof tiles

Infinitely adjustable, to fit any tile

Further developments:
Clamping piece - as spacers for the installation of foundation earth electrodes
Fixing system for insulated stand-offs 16 plus

2010

Air termination rod system for metal / tin roofs

with magnetic plate, also for a roof pitch up to 10°.

2011

Change of color for all our surge protection devices

from red to blue, our company colour

Further novelties:
Prö Cu/Al-wire- round wire made of bimetal-composite Cu/Al
Conductor fastener for metal / tin roofs - stainless steel V2A with magnetic plate and Niro-Clip

2012

New Surge protective devices "R" and "max"

Introduction of a new series of surge protective devices for mains systems (P-HMS R; P-HMS max; P-VMS) and for photovoltaic systems (P-HYS R PV; P-VYS R PV)

Further developments:
Niro-Clip conductor fastener - high version Height of conductor leading: 36 mm.
System Vario-clamp - M8-Plus with cylindrical collar

Picture right: Aerial view after expansion in Neumarkt

2013

Award of the Federal Cross of Merit on ribbon

Award of the Federal Cross of Merit on ribbon to Mr. Johann Pröpster sen.

Developments and innovations:
Fixed earthing terminal with foam cover - For safe fixed earthing terminal detection after concreting.
Protective cap for earthing conductors - For injury prevention and for marking
kc-clamp - Connection-clamp to reduce the kc value
Support tool for concrete base with wedge
Quick connector - to connect reinforcements and round conductors
Protection measures against step voltages e.g. in shelters

2014

Factory 3 Deining

ground-breaking ceremony and start of construction at the new location (Factory 3) in Deining.

Novelties of the year:
ES reinforcement clamp - to connect flat and round conductors to the reinforcement steel
Parallel saddle clamp - special clamp to install the conductor alongside the joint, snow load protected
Multi-flat/round connecting clamp for a fast and simple connection of tapes with the reinforcement
Connection set for safety rope systems - to connect safety rope system on roofs with the lightning protection system
Connection clamp - for fast and simple connection of grounders to the reinforcement
Disconnection clamp with terminal angle - two versions

2015

Air termination pole base frame with a 2-part base frame

Completion of the first double hall (background) and start of construction of the second one.

More new products
Equipotential bonding bar with metal cover
Surge protection device - MOV + GDT
Surge arrester P-LED 230
Adjustabel test joint box - for flush mounting on facades with thermal insulation composite systems

2016

Developments and innovations

Connection clamp with clamping bracket and spring, Mounting aid for connection clamps, Manual straightening tool - light & heavy version, Heavy connecting – disconnecting clamp, Multi-Mini saddle clamp, Attic saddle clamp, Multi-Quattro connecting and terminal clamp,Roof inclination adjustment of base frames, b>Telescopic air termination pole, freestanding, Diagonal swiveling cross connecting clamp, Surge arrester for high-frequency signal circuits, Air termination rod with angular frame, New fixed earthing terminal system for high 50 Hz current raiting, Multi-Plus saddle clampQuick connectorfor Reinforcements up to ø 16 mm, Connecting clamp - small, Multi-flat/round connecting clamp - new Versions

2017

HVC-protected
HVC-85 conductor

Introduction of the high voltage resistant conductor HVC-85.

More novelties.
Conductor fastener and air termination poles for HVC-85
Multi-Max reinforcement clamp 75x75 mm and 50x50 mm

Backround and picture right: 3. Expansion of the company in Deining with the construction of 2 double halls.

2018

Insulated air termination rods and poles

Air-termination rod-SET insulated including angle-base frame for concrete base
RS-Telescopic air-termination pole insulated freestanding including air-termination pole base frame

2019

40 years J.Pröpster

New components from JP:
High voltage resistant conductor HVC-50
Conductor fastener and air termination poles for HVC-50
Combined arrester P-HF Box - specially designed for the use in telecommunications interfaces.
Connecting clamp for flat 40 mm with and without bracket and spring
Terminal clamp "Perfekt" with two clamping jaws for variable connection
Smart connector for the connection of round or flat conductors with the earth rod

2020

The 4th expansion in our Factory 3 Deining

2 additional production halls at Factory III in Deining.

The novelties of the year:
Beam Clip for HVC conductor
Saddle clamp "Flex" for secure connection to sheet and steel
PV-connector for equipotential bonding
Conductor fastener for exterior pole installation of the HVC conductor im Bereich in the zone of the GRP insulating support

2021

Insulationtest for HVC-50 and HVC-85

First insulated cable used in lightning protection that can be tested for function. The inspection of lightning protection systems required in EN 62305-3 can be fulfilled.

Awarded the "Germanys Innovation Leader" 2021 prize by the F.A.Z. Institute

Other novelties of the year:
Surge arrester P-VM 280 slim multipole/mains system compliant
Roof conductor holder For standing seam roof system for HVC-Conductor
Connecting clamp Max for the connection of conductors with the reinforcement.
Test joint with plastic base for quick and easy opening of the connection

2022

Divisible base-unit for insulation testing
for HVC-50 and HVC-85

Experience our company history