EXTENSIO
Preserving what lasts.
Renewing what Matters.
About Extensio
SULO Retrofit modernizes existing underground and semi-underground collection systems — without replacing the concrete structure. The infrastructure remains in place. The system is upgraded where it matters. Mechanical components, safety elements and user interfaces are renewed according to project scope — not replaced unnecessarily. Full operational volume — guaranteed. No civil works. No capacity loss. No full replacement.
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More InformationTalk to our Experts
We evaluate your infrastructure and define the right retrofit scope — clear, measurable and aligned with your operational goals.
+49 5221 598-05
Benefits for everyone
Extensio does not only help the environment but everyone of us.
Safety
Advanced sealing and upgraded safety components eliminate leakage and reduce odor, improving everyday comfort and public safety.
Relieable performance
Preserved collection volume ensures reliable performance and prevents overfl ow — even at peak demand.
No excavation
Existing concrete shafts remain in place, avoiding excavation and protecting the urban fabric.
Upgrade
Coordinated upgrades extend service life by 10–20 years while maintaining full operational capacity.
Increasing Safety
Upgraded lifting interfaces and bottom mechanisms increase emptying safety and reduce mechanical failures.
Efficiency & Productivity
Guaranteed operational volume preserves route efficiency and maximizes collection productivity.
Before and After
See what makes the difference
Solution Packages
Defined scope. Defined outcome.
One coordinated upgrade configured for your infrastructure and delivered through the right SULO system solution.
Entry Level
Repair Retrofit
Restore functionality.
Keep what works.
When to use
- One or more components have reached end of service life
- The concrete structure remains intact, but daily reliability is compromised
Flagship
Replace Retrofit
Preserve structural assets. Renew performance.
When to use
- Aging fleet with increasing technical failures
- Reliability and performance must be restored across multiple sites
- Long-term investment planning preferred over full replacement
Optional Add-on
Upgrade
Expand capability. Integrate new fractions. Enable intelligence.
When to use
- Additional or new waste fractions must be introduced
- Station performance, usability or capacity require enhancement
- Digital transparency is required for monitoring and access control
Example
Repair Retrofit
What we deliver
Targeted upgrade of failing components
Full operational functionality restored
No unnecessary replacement. No scope drift.
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More Information
Iceberg Max 1
Concrete
Example
Replace Retrofit
What we deliver
Coordinated upgrade of key functional modules
Renewed system performance with preserved concrete shafts
10–20 years extended service life (typical target)
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More Information
Iceberg Max 1
Concrete
Example
Upgrade Retrofit
What we deliver
Reconfigured system layout for new fractions and volumes
Upgraded interfaces and structural components for improved performance
Integrated smart options for monitoring, access and data connectivity
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Iceberg Max 1
Built to
last.
Designed to
evolve.
Upgrade without compromise.
Modernize what matters.
Preserve what works.
Move forward without starting from zero.
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More InformationExample France: A new Molok is used as replacement.
Why leading cities choose retrofit
Strategic Benefits
Preserve your infrastructure
Concrete stays in the ground. No excavation. No civil works.
Maintain full capacity
Upgrade without volume compromise. Guaranteed capacity. No additional units. No hidden performance drop.
Extend service life
+15–20 years through coordinated system modernization.
Operational Benefits
Reduce public disruption
Installation in days — not weeks. Minimal impact on citizens and traffic.
Control investment
Targeted upgrade instead of full replacement. Budget focused where it creates measurable value.
Result
We evaluate your infrastructure and define the right retrofit scope — clear, measurable and aligned with your operational goals.
A coordinated system upgrade.
Not a temporary repair. Not a full rebuild.
Modernized stations.
Preserved assets. Strategic investment.
