Mon–Fri 06:00–20:00  |  Sat 07:00–15:00 biuro@magnumchorula.pl
+48 602 716 551 |

Pneumatic Repair

Silo trailer pneumatic system repair: safety valves, aeration pads, ball valves, pressure hoses, compressors. Same-day repair with parts in stock. PHS Magnum, Chorula (A4 motorway, Poland).

In Brief

Silo trailer pneumatic system repair covers safety valves, aeration pads (fluidisation membranes), ball and butterfly valves, pressure hoses and compressor fittings. The most common failure: worn aeration pads causing slow or failed discharge. PHS Magnum stocks parts for Spitzer BT and Feldbinder Cement/Powder series — same-day repair for most pneumatic faults. Mobile service available on the A4 motorway within 100 km of Chorula, response time 45–110 minutes.

The pneumatic system is the heart of a silo trailer. Without functioning valves, aeration pads and pressure lines, the trailer cannot discharge cargo. A pneumatic failure on the road is not just a missed delivery — it means a customer complaint, driver and trailer downtime, and often a contractual penalty.

At PHS Magnum, pneumatic system repair is our largest service category. After 30 years of specialised service, we know what fails first, how to diagnose it quickly, and what we have in stock.

Pneumatic System Components

Compressor drives the entire discharge system. Common problems: worn piston rings (no pressure build-up), damaged seals (oil leak), worn belt (no drive). A silo trailer compressor works under much greater load than a tractor compressor — any leak anywhere in the system causes the compressor to run at full speed with no output.

Safety and pressure-relief valves are components that operators ignore until inspection refusal. A safety valve opens when the tank’s maximum working pressure is exceeded (typically 3.0–3.5 bar). After years working with cement or lime, the sealing surface corrodes — the valve either leaks at low pressure or locks open and fails to open at overpressure. In both cases the trailer is out of service.

Ball and butterfly valves control material flow. Most common failures: worn PTFE seals (leak under pressure), blockage by residual material (cement, gypsum), stem corrosion. Replacing a DN100 ball valve takes 30–60 minutes.

Aeration pads (aeration mats, fluidisation pads) are porous elements at the bottom of the silo chambers, through which pressurised air flows to fluidise the material. Pads for PE/PP granules last several years. For cement, lime and phosphates, alkaline degradation shortens life to 1–3 years. Symptoms: uneven discharge, material remaining in chambers, significantly longer discharge time.

Pressure hoses and fittings — rubber and metal hoses connecting compressor, tanks and fittings. Common failures: cracks at end fittings (vibration), abrasion, rubber ageing. Hose replacement: typically 1–2 hours.

Parts in Stock

  • Aeration pads for Spitzer BT 40/55/65/75
  • Aeration pads for Feldbinder Cement/Powder
  • Safety valves (various opening pressures)
  • Ball valves DN80/DN100/DN125
  • Pressure hoses 25–76 mm with fittings
  • Hatch gaskets EPDM/silicone
  • Gauges and thermometers with calibration certificates

Orders before 15:00 — next working day courier delivery.

Contact — Pneumatic Service

Service and diagnostics: +48 602 716 551
Spare parts: +48 604 800 869
Email: biuro@magnumchorula.pl

ul. Kościelna 9, 47-316 Chorula (4 km from Prądy junction, A4 Opole West)

Related: Aeration pads · Valves · Silo trailer service · Spare parts · Trailer not discharging

Frequently Asked Questions

Most common: trailer does not discharge or discharges very slowly, compressor runs at full speed with no output, uneven discharge from individual chambers, audible air leaks at fittings or hatches, pressure gauge not reaching 2–3.5 bar.

Quotation on request after fault description and vehicle details. Diagnosis at the workshop: free of charge. Written quote before every repair. Contact: +48 602 716 551.

Diagnosis and valve/gasket replacement: 2–4 hours. Full aeration pad set: 6–8 hours (1 working day). Welding repairs on piping or fittings: 1–2 days. With parts in stock — same-day repair.

Aeration pads cannot be repaired — they are replaced as complete units. Service life depends on the material carried: PE/PP granules — several years; cement and lime — much shorter due to alkaline degradation. Diagnosis shows which pads are worn.

Yes. Mobile service along A4 within 100 km of Chorula. Response time 45–110 minutes. We carry pneumatic repair kits (valves, gaskets, hoses). For major failures (pads, compressor) — towing to workshop. Phone: +48 602 716 551.

Spitzer (BT 40/55/65/75, CT, ZKT), Feldbinder (EUT, KIP, FV), Kassbohrer (SV I/II/III), Koegel, Schmitz. Other brands on request. We stock parts for Spitzer BT and Feldbinder Cement/Powder.

Replacing valves, pads and hoses is routine maintenance — no TDT inspection required. If repair involved welding on the pressure vessel or replacing pressure vessel components, a special TDT inspection is required before returning to pressurised service.

PHS Magnum stocks aeration pads for Spitzer BT series. Sale and fitting in one location. Courier delivery next working day for orders placed before 15:00. Phone: +48 604 800 869.

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 the A4 Motorway

180 km from German border

Call Email
Urgent? We call back within 2h +48 602 716 551