In Brief
Concrete pump TDT inspection — mandatory every 2 years under the Polish Technical Supervision Act (which sets the inspection interval). EN 12001:2012 covers structural safety of concrete machinery, not the inspection frequency. Inspector checks: service documentation (last 2 years), boom welds (magnetic particle MT testing), hydraulic pressure test (1.25 × MOP for 10 min), safety devices (load limiter, tilt sensor, stabilizer locks). Most common failure reasons: boom weld cracks (40 %), defective safety devices (25 %), missing service documentation (20 %), hydraulic leaks (10 %). Book pre-inspection service at PHS Magnum 6 weeks before the certificate expiry date — +48 602 716 551.
Concrete pump TDT inspection – practical guide
Legal basis
The Polish Technical Supervision Act (Journal of Laws 2023, pos. 1622) sets the inspection interval — every 2 years for all commercial concrete pumps. EN 12001:2012 covers structural safety of concrete machinery (Machinery Directive), not the inspection frequency.
What the TDT inspector checks
- Documentation – service records (last 2 years), machine passport, Polish-language manual
- Visual inspection – coating, all boom welds, stabilizer attachments, hydraulic hoses
- NDT testing – magnetic particle testing (MT) of critical weld areas
- Hydraulic pressure test – 1.25 × MOP for 10 minutes
- Safety device test – load limiter, tilt sensor, stabilizer locks, emergency STOP
Most common reasons for failing inspection
- Boom weld cracks (not visible without MT) – 40% of failures
- Defective safety devices – 25%
- Missing service documentation – 20%
- Hydraulic leaks – 10%
- Excessive pin and bearing wear – 5%
Preparation checklist
- 6 weeks before: Book pre-inspection service at PHS Magnum
- 3-4 weeks before: Repair any identified issues, compile service records
- 2 weeks before: Confirm TDT inspector appointment
- Day of inspection: Clean machine, full hydraulic oil, trained operator present
Call +48 602 716 551 with your pump serial number and certificate expiry date.
Related: Concrete pump servicing · Pump repair · Replacement parts · Pressure vessel TDT inspection
