
The AirTAC Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X175-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
Generating 2513 N of push force at 0.5 MPa, this 80 mm bore JIS profile cylinder brings pneumatic muscle to applications needing exact end-position tuning. The hard-anodized aluminum barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. It handles about 1508 N of real work safely, which translates to lifting roughly 128 kg vertically with a 2:1 margin.
The external stop screw provides a 20 mm extend-shortening window, letting you dial the usable forward stroke down from the 175 mm maximum to 155 mm on-site without swapping the actuator. Air connects via a G3/8 port, and the -S suffix means a built-in piston magnet is present for CMSE/DMSE switches that mount directly into the side sensor grooves. Note that the retract end remains fixed, and the adjustable air cushions only decelerate the load near stroke end rather than holding it in place.
| Model | Airtac JSIJ63~80 Adjustable Cylinder JSIJ80X175-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G3/8 |
| Rod thread | M22×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 80 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×175 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Dial in the exact seating depth of a bearing or pin over a 20 mm window without machining custom spacers or changing the actuator body.
Adjust the extend position on a packaging line stopper by up to 20 mm to accommodate different carton lengths on the fly.
Keep one 175 mm actuator in maintenance stock and shorten the extend stroke on-site to replace a 160 mm or 155 mm unit, reducing inventory.
When sizing this model, stepping down to a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore delivers 3927 N. The 80 mm bore sits in a strong middle ground for medium-heavy tooling. The 20 mm adjustable window is ideal for sharing a single spare cylinder across machines that need slightly different extend lengths, or for fine-tuning a press fit on-site. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this unit includes the -S magnet, you can fit CMSE/DMSE reed or electronic sensors for position feedback. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the piston rod.
Quick checklist
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa it provides 3518 N push and 3175 N pull. The theoretical maximum force is 513 kgf at 1.0 MPa. The air port size is G3/8.
The nominal 175 mm extend stroke is the maximum. The external adjuster lets you shorten the forward stroke by up to 20 mm on-site, giving a usable extend range of 155-175 mm. The retract end is fixed, and the adjuster sets the end position rather than locking the load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.