Apr 16, 2026

Ever had a production line stop because a tiny cylinder seal failed?
We have. More times than we'd like.
Material conveying systems move plastic pellets, powders, and granules through pipes using air pressure and vacuum. They run continuously. They handle abrasive materials. And when something fails, the whole line stops.
The cylinders in these systems have a simple job — open a valve, actuate a diverter, operate a discharge gate. But if a cylinder sticks or leaks, material flow stops. Production stops. That's a problem.
Standard cylinders weren't designed for this environment. The seals wear out from constant cycling. The rods get scratched by abrasive dust. The mounting configurations never match the tight spaces inside a conveying system.
We build cylinders that belong in these systems.
First, the space. Conveying lines are packed tight — pipes, filters, receivers, vacuum pumps. There's no room for a bulky cylinder with a universal mounting bracket. You need something that fits exactly where you have space.
Second, the duty cycle. These systems run all day. Cylinders cycle thousands of times per shift. Standard seals overheat. They wear out. They fail.
Third, the material itself. Plastic pellets are abrasive. Powders are fine and find their way into everything. Standard rod seals weren't made to keep this stuff out.

We start with your system layout. Where the cylinder needs to go. What it needs to do. How often.
Compact design — short overall length. Fits in tight spaces.
Custom mounting — whatever bracket or clevis your system uses. No adapters.
Hardened rod — chrome plated or stainless. Resists scratching from abrasive materials.
Seals that last — high-cycle compounds. Not the standard catalog seal.
Optional air tank — we also build custom air tanks for stable vacuum generator supply.
Numbers
| Parameter | What we can do |
| Bore size | 32mm to 100mm |
| Stroke Custom | whatever your system needs |
| Pressure | 4 to 8 bar |
| Seals High-cycle | NBR or FKM |
| Rod | Hard chrome or stainless steel |
A real customer
Hamilton Plastic Systems builds material conveying equipment. They needed cylinders for their compressed air loaders and powder conveying systems. Standard cylinders didn't fit the space or hold up to the cycle rates.
We built them custom cylinders. Compact. Hardened rods. Seals that last. We also supplied custom air tanks to stabilize their vacuum supply.
They're still using them.
Your turn
Tell us what material you're moving, how often the cylinder cycles, and what space you have. We'll design something that fits — and stays working.
Email: sales@fescolo.com sales@focka.com
WhatsApp/Phone: +86 15057491870
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