Quick Take
Choosing a pneumatic air cylinder usually comes down to bore, stroke, action, and how much you want to spend. The four listings here range from a compact 16 mm bore cylinder at USD 19.37 to a 2-1/2 in bore single-acting aluminum cylinder at USD 193.99, so the price spread is wide. If you need a small, affordable unit for automation or light pneumatic control, the 16 mm bore option includes a Y connector and two fittings. If you need longer metric travel, the 25 mm bore double-acting cylinder at USD 38.99 offers a 150 mm stroke. For inch-bore work, the SC 63 X 200 at USD 53.89 gives you a 2-1/2 in bore and 7.87 in stroke, while the Velvac 100126 at USD 193.99 is the single-acting choice.
Listed Price Comparison
| Product | Listed price | Price bar |
|---|---|---|
| 16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting | USD 19.37 | |
| 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings | USD 38.99 | |
| Pneumatic Air Cylinder SC 63 X 200, PT 3/8 Port, 2-1/2\" Bore, 7.87\" Stroke, Sing | USD 53.89 | |
| Velvac 100126 Air Cylinder, 2 1/2 In Bore, 6 In Stroke, Single Acting, Aluminum | USD 193.99 |
Decision Matrix
| Use case | Best fit | Why |
|---|---|---|
| Compact low-cost metric setup | 16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting | Small 16 mm bore, 75 mm stroke, double-acting, and includes Y connector and two fittings |
| Metric cylinder with longer travel | 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings | 25 mm bore, 150 mm stroke, double-acting with adjustable buffer and PT1/8 port |
| Inch-bore with long stroke at moderate price | Pneumatic Air Cylinder SC 63 X 200 | 2-1/2 in bore, 7.87 in stroke, PT 3/8 port, listed at USD 53.89 |
| Single-acting aluminum model | Velvac 100126 Air Cylinder | 2-1/2 in bore, 6 in stroke, single-acting aluminum body |
Product Notes
16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting
The lowest listed price in this group belongs to this 16 mm bore, 75 mm stroke cylinder, and the package includes a Y connector and two M5-to-6 mm quick fittings. The aluminum alloy body is described for pneumatic systems, automation control, punch, and similar uses, with a double-acting single-rod design and a working pressure range of 0.15-1.0 MPa / 14-145 psi. That makes it a practical entry point if you want a compact cylinder with fittings ready to go. The limitation is the M5 port and the small bore, so it is best for lighter forces and tighter spaces. The listing also carries a California Prop 65 warning for cancer and reproductive harm.
Pneumatic Air Cylinder SC 63 X 200
This middle-priced cylinder is listed at USD 53.89 and gives you a 2-1/2-inch bore with a 7.87-inch stroke. It uses a PT 3/8 port and an M16x1.5 threaded piston rod, and the description identifies the design as double-acting and single-rod, with forward and return motion. The country of origin is listed as the United States, and the item model number is SC 63-200. The included-components entry is shown as '/', meaning no additional fittings are specified in the listing. If you already have connectors or are building a custom setup, that may be fine, but it means the total cost could include separate fittings.
25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings
Listed at USD 38.99, this cylinder sits between the compact 16 mm model and the SC 63 X 200 in price. It has a 25 mm bore, a 150 mm stroke, a PT1/8 port, and a double-acting single-rod design. The air cylinder is aluminum and has an adjustable buffer, with a maximum pressure rating of 1.0 MPa (145 psi). A Y connector and two fittings are included, similar to the smaller 16 mm cylinder. If you want metric dimensions and a longer stroke than the 16 mm option, this setup gives you more travel without stepping up to an inch-bore price.
Velvac 100126 Air Cylinder, 2 1/2 In Bore, 6 In Stroke, Single Acting, Aluminum
At USD 193.99, this is the highest listed price in the comparison. It has a 2-1/2-inch bore, a 6-inch stroke, single-acting action, and an aluminum body, with a bore diameter that matches the SC 63 X 200. The California Prop 65 warning is listed as 'N'. If your application specifically calls for single-acting motion and you prefer a branded 2-1/2-inch bore cylinder, this is the option that states that action directly. It has a slightly shorter stroke than the SC 63 X 200, which lists a 7.87-inch stroke, so it may not be the best fit if maximum stroke length is your priority.
Final Recommendation
| Use case | Recommended listing |
|---|---|
| Compact low-cost automation | 16mm Bore 75mm Stroke Pneumatic Air Cylinder Y Connector and Fitting |
| Longer metric stroke with double-acting action | 25mm Bore 150mm Stroke Double Acting Air Cylinder with Y Connector & 2 Fittings |
| 2-1/2-inch bore with a long stroke at a moderate price | Pneumatic Air Cylinder SC 63 X 200 |
| Single-acting 2-1/2-inch bore aluminum cylinder | Velvac 100126 Air Cylinder |
Start with the bore and stroke you actually need, then use the listed price to decide how much you want to spend. The 16 mm bore cylinder is the least expensive option, the 25 mm bore cylinder stands between the compact option and the SC cylinder in price, and the SC 63 X 200 is the longest-stroke 2-1/2-inch bore listing at a lower price than the Velvac.
