Fixing pipes from the inside — how robotic mills, UV-cured liners and sealing packers rebuild sewers without opening the street.
Excavation costs are dominated by surface restoration — trenchless removes the surface from the equation.
Pavement, traffic control and reinstatement outrun the pipe repair itself — trenchless cuts the biggest line items.
A lined lateral returns to service in hours; an open-cut street closes for weeks.
Municipal bids increasingly mandate no-dig on arterials.
Roots, structures and utilities that make open-cut impossible are routine for trenchless.
No open trench = no freeze, no rain-delay, no spoil piles.
Trenchless demands robot skill and lining craft — this page is what the equipment actually does.
Remote-controlled milling robots grind obstructions and prepare defects — the Schwalm lineage built this category.
Offset joints, protruding taps, solidified grease, intruding roots and collapsed fragments.
Rotating mill heads with hard-facing cut through concrete, mineral deposits and even cast iron.
The operator drives the mill from the van via live CCTV — precision measured in millimeters.
Family company since 1938; Willi Schwalm patented the rehab robot + HutlinerPacker®; Martin Schwalm founded Schwalm Robotic GmbH in 2008. Today's Talpa FSR 1330 / FSR 2060 carry the line.
Bad Hersfeld craftsmanship, 40 specialists, worldwide customers — we represent the line with respect.
Sales + repair division both stand behind the lines we carry.
After milling, the repair itself.
Short liners repair isolated defects — the classic after-milling step.
Patent-protected Schwalm hat seals close connections and local defects — placed by the HutlinerPacker®.
Inflatable packer positions and presses the liner/ seal at the defect, cures, then retracts.
Resin-saturated felt cures into a new pipe-inside-the-pipe — the full-rehabilitation standard.
UV LED curing systems (Sewertronics-class technology, part of the Minicam group) cure liners in minutes with no steam or water cook-off.
Robots, cameras, packers and curing — the equipment chain for the contractor market.
Why UV is displacing hot-water curing in lateral and spot work.
LED arrays cure liners in a fraction of water-cure times — turnaround per job transforms.
Light output profiles to resin chemistry — repeatable quality, batch to batch.
No water to heat, no effluent to manage — the environmental simplification.
Modern UV rigs serve laterals and small mains — Sewertronics (Poland, acquired 2024 into the Minicam group) is the reference engineering.
Electric drive robots place + cure — one van, one crew, full spot-repair capability.
Dancutter (Denmark, robotic cutters, acquired 2021) + Sewertronics + Minicam form one engineering family — we represent the group in authorized territory.
A standard spot repair from inspection to reinstatement.
Camera + sonde locate and code the defect — PACP language for the asset record.
Milling robot grinds the obstruction and dresses the defect area.
Length, diameter, transition points — liner sizing is exact.
Liner/ seal positioned by packer under camera watch.
Cure cycle per resin spec — UV minutes, ambient hours.
Final camera pass documents the repair for the record.
The market for robots, packers and curing rigs.
Companies doing lateral and main rehabilitation full-time — the robots are their production line.
Larger cities own spot-repair capability for the defect census their cameras produce.
Lateral lining is the small-fleet entry into the category.
CCTV contractors add rehab — the camera data is the sales funnel.
We represent the equipment lines in our authorized territory.
Robots, packers, cameras, controllers — the repair division supports what the sales division delivers.
Trenchless is a family-craft industry.
Georg → Willi → Martin Schwalm: a haulage firm became the world's trenchless robotics reference. Patents that built a category.
Danish cutting engineering (2021) and Polish UV curing (2024) — now one Minicam engineering family.
The Manchester inspection house that assembled the group — cameras, robots and curing under one standard.
Manufacturer imagery only — with the history told accurately and with respect.
Equipment that works — sold by people who repair it, supported by people who answer the phone.