Spitzer Silo Trailer TDT Inspection Poland – Pressure Vessel
TDT pressure vessel inspection for Spitzer silo trailers in Poland. EU-valid certificate. PT weld testing, pressure test 1.25×MOP. significantly cheaper than DE/AT.
TDT/WDT inspection for Spitzer silo trailer pressure vessels
Legal basis
Polish Technical Supervision Act (Journal of Laws 2023, pos. 1622) and EU Pressure Equipment Directive 2014/68/EU. Inspection interval: every 2 years.
What the TDT inspector checks
- Documentation: machine passport, previous TDT certificate, 2-year service records
- Visual inspection (VT): external and internal tank condition
- Pressure test: 1.25 × MOP (e.g., 2.75 bar for MOP 2.2 bar) for 30 minutes
- Safety valve function: must open at correct pressure
- Manometer accuracy
Most common reasons for TDT failure
- Weld cracks (detected by PT) – 40% of cases
- Defective safety relief valve – 25%
- Missing service records – 20%
- Aluminium corrosion from alkaline materials – 10%
- Tank wall thickness below minimum – 5%
Preparation timeline
- 6 weeks before: pre-inspection service at PHS Magnum
- 4 weeks before: repair any faults, compile documentation
- 2 weeks before: schedule TDT inspector appointment
- Inspection day: clean empty trailer, all documents ready
Call +48 602 716 551
Frequently Asked Questions
Yes. The silo trailer pressure vessel is subject to mandatory TDT technical inspection every 2 years under the Polish Technical Supervision Act. This applies to all silo trailers operating commercially in Poland, including foreign-registered vehicles.
Road Transport Inspectorate (ITD) may stop the vehicle and issue a fine up to PLN 30,000. TDT issues an administrative decision prohibiting operation. Insurer may reject claims in case of accident.
TDT inspection fee: PLN 400-800. Pre-inspection service at PHS Magnum: PLN 300-600. Any required repairs: individual quote. Total for well-maintained trailer: PLN 700-1,500.
Contact & Hours
ul. Kościelna 9, 47-316 Chorula
Mon-Fri 06:00-20:00
Sat 07:00–15:00
+48 602 716 551 Contact us
ISO 9001:2015
4 km from motorway A4
180 km from German border
