products
Periodic inspection centers for cylinders
CNG · NGV · Industrial gases
Everything you need to set up your periodic inspection center
CYM Materiales supplies the complete equipment line for setting up periodic inspection centers for CNG, NGV and industrial gas cylinders —oxygen, acetylene, helium, argon, carbon dioxide and other industrial gases—, covering every process stage: gas venting, valve removal, surface blasting and cleaning, external inspection, internal washing, hydraulic testing by volumetric expansion, vertical painting and marking. All equipment is designed to work together as an integrated system, with technical support and turnkey projects for installations of any scale.
For cylinder movement between stages, we offer two layout configurations compatible with the full equipment line. In the manual trolley layout, cylinders are moved between independent stations; in the roller table layout, cylinders are manually pushed along a continuous sequence of tables connecting each stage. Both configurations include tilting tables and the choice depends on available space and the operational flow of each installation.
The production rate of the center is determined by the PH-1 hydraulic testing equipment cycle, with times between 4 and 7 minutes per cylinder depending on size. The rest of the equipment is sized around that rate to ensure continuous workflow. For each stage, CYM Materiales offers options of different capacity and automation level, allowing the center to be configured according to the required production volume.
All equipment complies with the regulations of each country's vehicle technical inspection authorities and is robust, reliable and compact. Our Engineering and Sales team supports every project from layout design through commissioning, with standard solutions and custom configurations tailored to each technical and regulatory requirement.
Applications
Uses and applications of the inspection center
Periodic inspection centers equipped with the CYM Materiales line handle the recertification and inspection of CNG, NGV and industrial gas cylinders, from small installations with a single PH-1 unit to high-production plants with continuous lines. Equipment selection depends on production volume, cylinder type and available layout.
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What type of installation is this line designed for?
- Periodic Cylinder Inspection Centers (CRPC) authorized by national regulatory bodies.
- Recertification plants for vehicle CNG, NGV and industrial gas cylinders (oxygen, acetylene, argon, helium and others).
- Low-production installations with manual blasting and PH-1M through high-capacity plants with continuous lines.
- Cylinder manufacturers requiring an integrated blasting, hydraulic testing and painting line.
- Turnkey projects: design, manufacture, installation and commissioning by CYM Materiales.
What processes are carried out in the center?
- Residual gas venting and valve removal prior to processing.
- Blasting and cleaning of the cylinder exterior surface.
- External inspection, wall thickness measurement and thread gauge check.
- Internal washing of the cylinder.
- Hydraulic testing by volumetric expansion (IRAM 2587 standard).
- Vertical painting and remarking with date, workshop identification and certification
MODEL SELECTION
What do you need to blast? Find your machine
Both layout configurations are compatible with the full CYM Materiales equipment line. The choice depends exclusively on available space and the operational flow of the installation.
| Selection criteria | Layout with manual trolleys | Layout with roller tables |
|---|---|---|
| Movement between stages | Manual trolleys | Manual push on rollers |
| Ergonomics | Greater handling by operator | Less effort — cylinder rolls between stages |
| Plant layout | Flexible — independent, relocatable stations | Linear — stations in fixed sequence |
| Tilting tables | Included at each station | Included, complementary to rollers |
| Equipment compatibility | Full CYM Materiales line | Full CYM Materiales line |
| Production rate | Determined by PH-1 cycle (4–7 min) | Determined by PH-1 cycle (4–7 min) |
| Best suited for | Irregular spaces or fractional production | Continuous flow with linear space available |
EQUIPMENT BY STAGE
Equipment for every stage of the process
The periodic inspection process follows a fixed stage sequence. The rate of the entire line is determined by the PH-1 hydraulic testing equipment cycle (4 to 7 minutes per cylinder), which is the bottleneck of the installation.
| PROCESS STAGE | EQUIPMENT | MODELS |
|---|---|---|
| 1 · Gas venting | Gas venting chamber | CVG-100L |
| 2 · Valve removal | Pneumatic vertical press | PD-1 |
| 3 · Blasting and cleaning | Cylinder blast machine | ECOGNC (automatic) CY1210P-GNC (manual) |
| 4 · External inspection | Inspection tilting table | MB-90° 1P-IV |
| 5 · Internal washing | Washing tilting table | MB-180° 2P |
| 6 · Hydraulic testing | Hydraulic test equipment | PH-1A (automatic) PH-1M (manual) |
| 7 · Painting | Vertical paint booth | NGV paint booth with optional handling |
| 8 · Valve replacement | Pneumatic vertical press | PD-1 |
| 9 · Marking and dispatch | Auxiliary equipment | Stamps · thread gauges · ultrasound gauge |
Note: the PD-1 press is used at two stages of the process —valve removal at the start and valve replacement at the end— so a single unit can cover both functions in low and medium production installations.
Equipment lines
Select the equipment for your application
PH-1M - PH-1A Line
CNG Cylinder Hydraulic Test Equipment
Manual or automatic model for CNG and industrial gas cylinders, compliant with IRAM standards or equivalent regulations. Test cycles from 4 to 7 minutes.
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GAR - CAB - SAT - CABTUN - EST-TUN LINES
Cylinder shot blasting
Complete line of equipment for shot blasting of LPG, CNG, oxygen, acetylene and industrial gas cylinders
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FA-GNC line
Paint booth for cylinders
CNG, NGV and industrial gas cylinders in vertical position, with dry folded filters for paint retention, a 2 HP axial fan and centralized control panel.
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Auxiliary equipment
Requalification Centers – Auxiliary equipment
Venting chamber, valve press, tilting tables and carts
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Equipment in operation
Videos
Equipment in action
Special Projects
Can't find the equipment you need?
CYM Materiales develops it.
Our Engineering and Sales team works alongside the client to design a custom solution, reducing operating costs and maximizing productivity. Every project starts with a detailed technical assessment and ends with a machine built and tested at our plant
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