Choosing a double-acting cylinder often starts with the power source you already have on-site. One side of this comparison is a 2.5x6 tie-rod cylinder; the other is a 25mm bore cylinder. Both are double-acting, but they are engineered for different fluid systems and different operating conditions, so the right pick depends on what you need to move.
Quick verdict
If you want a larger-bore cylinder for heavier mechanical work, the 2.5x6 cylinder, listed at USD 126.34, is the heavier-duty pick. If you want a compact cylinder with a lower listed price, the 25mm bore cylinder at USD 38.99 is the smaller option. The price spread between the two is USD 87.35.
Listed-price and spec comparison
A quick look at the listed specs shows the core differences and puts the two side by side. That makes the division of labor easy to see.
| Product | Listed price | Price bar | Max pressure | Suitable media |
|---|---|---|---|---|
| 2.5x6 Hydraulic Cylinder 2.5\" Bore 6\" Stroke Double Acting Tie-Rod Cylinder | USD 126.34 | 2500 PSI | Hydraulic fluid | |
| 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings | USD 38.99 | 1.0 MPa (145 PSI) | Air |
Where each product wins
The useful differences are not just in the table. The two cylinders part ways when you look at their heavy-duty ratings and operating conveniences.
- The tie-rod cylinder wins on force capacity: a 12,270 lb column load rating and 3/8\" NPT ports.
- The single-rod cylinder wins on adjustability and temperature range: an adjustable buffer and a -4~176°F working window.
Product notes
2.5x6 Hydraulic Cylinder 2.5\" Bore 6\" Stroke Double Acting Tie-Rod Cylinder
With a 2.5-inch bore, 6-inch stroke, and tie-rod design, this cylinder is the larger physical package of the two. It carries a column load rating of 12,270 lb and uses 3/8\" NPT ports, with a 1-inch pin-hole size. That combination makes it a serious choice for heavy-duty push-and-pull work. The limitation is the fixed interface: the 3/8\" NPT port and 1-inch pin-hole size are specific, so they determine which fittings and mounts can connect. The 2.88\" OD also tells you this is not a small-footprint cylinder.
25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings
This cylinder is the space-saving option: a 25mm bore, 150mm stroke, and single-rod design in an aluminum body. It weighs 1.17 pounds. Its adjustable buffer helps soften the end of the stroke, and the working temperature range of -4~176°F gives it a wide operational window. The package includes a Y connector and two fittings, so the basic hookup components are already accounted for. Choose it for lighter pneumatic jobs where a small package fits. The limitation is the pressure ceiling: the maximum listed pressure is 1.0 MPa (145 PSI), so this unit is not intended for high-force applications.
Final choice by use case
There is no single winner here because the two cylinders serve different systems; your choice should line up with the system you already have.
- The 2.5x6 cylinder is the better fit when you need the larger 2.5-inch bore and the 6-inch stroke for heavier jobs.
- The 25mm bore cylinder is the better fit when your work calls for a 25mm bore and a 150mm stroke with the convenience of the included Y connector and fittings.
