K2 Systems GmbH
The German company based in Renningen (near Stuttgart) develops and produces mounting systems for PV installations. For the most part, the products are made from high-grade steel and aluminium, offering the right choice for the demands of any location – whether you choose an off-the-shelf or customized solution.
Mounting solutions for pitched roofs
SingleRail

SingleRail
- Quick and low-cost with direct lateral connections to the rail without additional components including customised height adjustment
- Secure snap-in assembly - without needing to be screwed into the base plate
- The SingleRail in combination with CrossHook roof hooks is very durable and versatile
CrossRail System
CrossRail System
- Sophisticated geometric design and optimal use of materials - for large rail widths
- Highest corrosion resistance thanks to roof hooks and rails made of aluminium
- Clever and strong: 3 or rather 4 height adjustments in CrossHook 3S/4S
SolidRail
SolidRail
- Comprehensive range of mounting rails for varying load profiles
- Robust and structurally proven
- High flexibility for a diverse range of widths
MiniRail System

MiniRail System
- Innovative and statically optimised short rail system that is quick and easy to mount
- Universal module clamps and suitable for portrait and landscape orientation
- 5° elevation with MiniFive: significantly more output thanks to improved ventilation and optimised module angle
- Optimised for storage and transport
SpeedRail System

SpeedRail System
- The proven long rail system for trapezoidal sheet applications as well as floating suspension with controlled thermal linear expansion
- Our most popular system - over 1GW installed worldwide
- All-rounder with only 4 installation steps - also suitable for high loads
MultiRail System
MultiRail System
- Easy and proven - as a short rail or a flexible component in various lengths
- Quick planning with less material and greater effectiveness
- Compact shipping dimensions and entirely palletised
S-Dome Small
S-Dome Small
- For a roof inclination of up to 15° on trapezoidal sheet metal
- Economical in terms of materials and transportation; clever connections and strong holding power
- The perfect combination of the all-round MultiRail component and load-optimised, slim elevations
Mounting solutions for flat roofs
S-Rock

S-Rock
- Ultra quick and easy mounting
- One component with integrated ballast tray and cable management solution
- No additional pre-assembly
- One universal clamp for all modules
- Aerodynamically optimised as a result of wind tunnel testing
S-Dome System
S-Dome System
- A system for structurally challenging roofs with limited ballast options
- Aerodynamically optimised as a result of wind tunnel testing
- Quick and easy handling
- Also available as a short rail system
S-Dome Small
S-Dome Small
- For a roof inclination of up to 15° on trapezoidal sheet metal
- Economical in terms of materials and transportation; clever connections and strong holding power
- The perfect combination of the all-round MultiRail component and load-optimised, slim elevations
D-Dome System
D-Dome System
- A system which provides optimal surface utilisation and yields for roofs with limited ballasting options
- Aerodynamically optimised as a result of wind tunnel testing
- Quick and easy handling
Triangle/MultiAngle System 10 - 45°
Triangle/MultiAngle System 10 - 45°
- Individually customisable elevation angle
- Universal module orientation
- High flexibility and customised solutions
Triangle/MultiAngle System 10 - 45°