Choosing the right pneumatic air cylinder for a build is a matter of matching travel, port size, and physical fit. If your setup needs to push or pull over a longer distance, the 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings gives you a 150mm stroke. If you need a more compact unit for short-throw automation, the 16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting brings the bore down to 16mm and the stroke to 75mm. Both are double-acting, single-rod cylinders with aluminum bodies, so the main decision is how much travel you need versus how compact the assembly should be.
Quick verdict
Pick the longer-stroke cylinder when you want more travel per stroke and a larger port. Pick the compact Zaplyte cylinder when you need a smaller, lighter unit for a tight space and a shorter push/pull cycle. The larger cylinder is the heavier of the two; the compact cylinder is the space-saving alternative.
Price comparison
| Product | Listed price | Price bar |
|---|---|---|
| 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector \& 2 Fittings | USD 38.99 | |
| 16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting | USD 19.37 |
Where each product wins
- Longer stroke, larger port: The larger cylinder travels 150mm per stroke, which is double the 75mm stroke of the compact unit. It also uses a PT1/8 port, so it is suited to larger air lines. An adjustable buffer helps fine-tune the end-of-stroke.
- Compact and simple: The compact cylinder uses an M5 port and a shorter stroke, which keeps the assembly tight. Its 0.15-1.0 MPa (14-145 psi) working pressure range covers common shop air.
Product notes
25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings

This is the cylinder to choose when a longer stroke is non-negotiable. The longer travel comes from a single-rod, double-acting aluminum-bodied cylinder, so it can move over a greater distance than the smaller unit. It lists an adjustable buffer, which gives you a way to soften the piston's end-of-stroke impact in faster cycles. The package includes a Y connector and two fittings. The trade-off is size: at 1.17 pounds and a larger bore, it is the heavier pick of the two, so you need enough clearance for the longer stroke.
16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting

If you want to keep the pneumatic subassembly compact, this Zaplyte cylinder fits a smaller bore and shorter stroke into a shorter package with an M5 port. It is double-acting with a single rod, and the package includes a Y connector and quick fitting. The 0.15-1.0 MPa (14-145 psi) working pressure range covers typical shop air. The limitation is the reach: it travels far less than the larger cylinder, so long-throw applications are not its job. The smaller M5 port is acceptable for light automation but not for high-flow lines.
Final choice by use case
Choose the larger model for longer stroke and a PT1/8 port; if your machine cycle needs more travel, this is the one that provides it. Choose the compact Zaplyte model for smaller assemblies and shorter cycles; it is the more space-efficient pick and the lower-priced unit, making it a practical fit for small punch or automation setups. Let the required travel and port size drive the decision.