Choosing an air cylinder for your hydraulics and pneumatics setup isn't just about picking a random part. You need to match the cylinder's bore and stroke to the force and travel your job requires, and you want the right accessories without overspending. The two cylinders here approach that goal from opposite ends: one is a lightweight mini unit, the other a full-size standard cylinder.
Quick Verdict
If your work is compact, high-cycle, and space-constrained, the 16mm mini cylinder is the obvious fit. If you need a large-bore, long-stroke actuator for heavier loads in a standard automation frame, the SC 100 x 450 is the better investment.
Comparison Table
| Feature | 16mm Mini Cylinder | SC 100 x 450 |
|---|---|---|
| Price | $28.99 | $64.17 |
| Bore | 16mm | 4\" (100mm) |
| Stroke | 300mm | 450mm (18\") |
| Action | Double-Acting | Double-Acting |
| Port Size | M5 | M20X1 |
Where Each Product Wins
- The 16mm mini cylinder wins for light-duty, high-frequency tasks where small size, low weight, and quick response matter more than brute force.
- The SC 100 x 450 wins for heavy-duty applications that need higher force capacity and longer travel for stability.
Product Notes
Air Cylinder 16mm Bore 300mm Stroke (Mini Pneumatic Cylinder)

The Air Cylinder 16mm Bore 300mm Stroke is a double-acting, single-rod mini cylinder. It's priced at $28.99 and includes a Y connector plus four pneumatic quick fittings, so you can connect it quickly. The aluminum alloy body is hard-oxidized for wear resistance, and the bi-directional sealing design helps extend service life. With a 16mm bore and 300mm stroke, it's built for high-frequency working environments where space is limited. The M5 port is small, though, and the 16mm bore limits the force output, so it's not meant for heavy lifting. Its light 12.6-ounce weight makes it easy to mount on small fixtures.
Air Cylinder Pneumatic Standard Cylinder SC 100 x 450 (TECHTONGDA)

The Air Cylinder Pneumatic Standard Cylinder SC 100 x 450 from TECHTONGDA is a double-acting, single-rod standard cylinder with a 4-inch (100mm) bore and 450mm (18-inch) stroke. Priced at $64.17, it's built with high-precision aluminum alloy that resists corrosion, heat, and wear, with good sealing and small stroke error for stable operation. Piston speed ranges from 50-800mm/s and it operates in temperatures from -20 to 80°C. The M20X1 port size allows higher airflow, making it suitable for larger loads. The trade-offs are its bigger size and higher price, which make it less practical for compact or light-duty projects.
Final Choice by Use Case
Choose the 16mm mini cylinder for bench fixtures, small automation jigs, or any high-frequency job where a compact, lightweight actuator is easier to fit and faster to respond. Choose the SC 100 x 450 when you need to move heavier loads over a longer travel distance in a standard pneumatic setup.