At a glance
We replace and convert silo trailer discharge fittings — Storz, PERROT ɸM 108 (4"), Camlock and DIN/ANSI flanged couplings — on Spitzer, Feldbinder, Kassbohrer and other trailers. A standard coupling replacement typically takes 1-2 workshop days, with TDT-compliant documentation. Workshop in Chorula, Poland, 4 km from the A4 Gogolin junction, ISO 9001:2015. Bookings: +48 602 716 551.
What we offer
At the PHS Magnum service workshop in Chorula we replace and adapt the discharge fittings of silo trailers — couplings, hoses, reducers — for Spitzer, Feldbinder, Kassbohrer and other manufacturers’ trailers. We handle both ad-hoc replacement of individual components and complete conversion of the fittings to a new specification.
Typical job scopes:
- Replacing a worn Storz coupling with a new one (same diameter)
- Permanent Storz → PERROT conversion (or vice versa)
- Preparing a hose + adapter set for deliveries to a receiver with specific infrastructure
- Replacing the complete discharge fittings (nozzles, valves, hoses) — typically during a general overhaul
- Repairing mechanical damage to fittings (damaged coupling, leaks)
Coupling types — comparison
The choice of coupling depends on the receiver’s infrastructure. The four most common solutions on bulk material silo trailers:
| Coupling type | Connection principle | Typical diameters | Where found |
|---|---|---|---|
| Storz | bayonet (quick coupling, quarter turn) | ɸM 75, ɸM 100, ɸM 108 | pneumatic standard in PL and DACH |
| PERROT ɸM 108 | threaded 4" | 4" | cement plants, some industrial sites |
| Camlock | lever (cam locks) | 2-4 inches | industrial installations, transloading |
| Flanged DIN/ANSI | bolted (flange) | per specification | fixed receiving installations |
For regular deliveries to a single receiver we most often recommend a hose + adapter set matched to their specification — this eliminates having to convert the trailer each time.
The process for a first order
- Phone or e-mail contact — description of the situation, trailer make and model, expected scope of work
- Preliminary assessment — by phone or from photos. We establish the scope, time and a preliminary quote
- Booking a visit at the Chorula workshop — the slot is agreed with the dispatcher (typically 3–7 days from the order)
- Carrying out the work — typically 1–2 workshop days, with ongoing status updates
- Vehicle handover with documentation (job card, invoice, any amendments to the TDT documentation)
What affects the cost
The cost of replacing a discharge coupling depends on several factors we assess individually:
- Coupling type and diameter — Storz vs PERROT, 3" vs 4"
- Scope of modification — whether a coupling swap is enough, or a new nozzle must be fitted
- Material — stainless vs carbon steel, aluminium for some fittings
- Workshop time — typically 4–16 working hours
- Documentation requirements — whether an ad-hoc TDT test is needed
Every job is quoted individually after a preliminary assessment. We do not publish a price list, because the scope of work can differ significantly even between seemingly similar jobs.
Why PHS Magnum
- Daily routine — we replace fittings regularly, not once a quarter
- Experience across all brands — Spitzer, Feldbinder, Kassbohrer
- TDT-compliant documentation — entries in the vehicle file, any ad-hoc tests carried out on site
- Location on the A4 — Chorula, Gogolin junction, 4 km from the motorway — easy access from Poland, the Czech Republic and DACH
- Workshop facilities — our own machine park, welding shop (TIG aluminium, MIG steel), our own silo trailer wash bay
Related
- Silo trailer service — full service scope
- Silo trailer renovation — complete conversions
- TDT inspections of silo trailers — tank documentation and testing
- Silo trailer pneumatic repair — discharge system, aeration pads
- Silo trailer faults — diagnosing common failures
- Spare parts — fittings, hoses, gaskets
Contact
Service bookings: +48 602 716 551 · biuro@magnumchorula.pl
