You're choosing between two pneumatic cylinders that serve different purposes. One is a Parker tie-rod cylinder, built to the inch series and rated for industrial air. The other is a compact metric mini cylinder from SWZHAI that comes with connectors. Both run on compressed air, but they're aimed at different workbench realities. Here's how to pick the one that matches your air supply and mounting space. The decision matters because choosing the wrong bore size means either a cylinder that's too bulky for your fixture or one that can't push the load you need.
Quick Verdict
Choose the Parker Series 2A if you need NPT ports and a high-pressure ceiling for a permanent fixture. Choose the SWZHAI mini cylinder if you're building a small clamp or jig and want the connectors on hand right out of the box.
Comparison Table
| Product | Price | Price Bar | Bore | Stroke | Action | Construction & Pressure |
|---|---|---|---|---|---|---|
| Parker 1-inch Bore x 2-inch Stroke Series 2A | $29.95 | 1-inch | 2-inch | Double-Acting | Tie-rod, 250 PSI | |
| SWZHAI 16mm Bore 50mm Stroke Mini | $24.37 | 16mm | 50mm | Double-Acting | Compact, sealed design |
Where Each Product Wins
The Parker takes the lead for fixed installations where you need the structural stiffness of a tie-rod cylinder and NPT ports that match common shop-air fittings. The SWZHAI wins when space is tight, when you want a quick-fittings setup, and when a Y connector and four fittings in the package save you an extra order. In practice, the Parker is a permanent-mount workhorse, while the SWZHAI is a compact build-around component.
Product Notes
Parker 1-inch Bore x 2-inch Stroke Pneumatic Cylinder Series 2A
This tie-rod cylinder is a classic industrial pneumatic component. The 1-inch bore and 2-inch stroke give it a substantial work envelope, and the double-acting design means air pressure drives it in both directions. It carries a 250 PSI maximum pressure rating, making it a strong fit for an industrial air line. The 1/4-inch NPT ports are a familiar standard for shop air fittings, and the US origin adds appeal if you're sourcing for a North American project. The main limitation is the price: at $29.95, it's the more expensive option here, and it's listed as new open-box condition, so you're trading pristine packaging for a functional cylinder. If your rig has room for the larger bore and you need the durability of a tie-rod construction, this is the one to build around.
SWZHAI 16mm Bore 50mm Stroke Mini Air Cylinder
If your fixture is small and your air pressure is modest, this mini cylinder is the compact answer. The 16mm bore and 50mm stroke fit into tight spaces where the Parker's inch-sized cylinder won't go. It's double-acting too, so you get both push and pull, and the package includes a Y connector and four pneumatic quick fittings, which saves you a separate trip to the hardware store. The red body is purely cosmetic, but it does make the cylinder easy to spot on a crowded plate. The trade-off is the compact size itself: you're trading raw capability for a smaller footprint. And at $24.37, it's the lower-priced option, but make sure your mechanism doesn't need the extra muscle of a larger bore. For a compact, connector-ready build, this is the practical choice.
Final Choice by Use Case
- If the cylinder is going into a frame that stays put and you need a US-made, tie-rod unit for a pressurized shop-air line, the Parker is your cylinder.
- If you're prototyping, building a compact clamp, or working on a small fixture where every inch matters, the SWZHAI mini cylinder is the right fit. The connector package alone is worth the switch for many builds.
