
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X275-75 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 275mm stroke, G1/2 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.
A hardened external stop screw lets you trim the 275 mm nominal extend stroke down by 75 mm, giving a usable range of 200-275 mm. You fine-tune the end position mechanically without swapping the cylinder. The retract end remains fixed.
Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 cylinder. It uses a G1/2 port, a 32 mm rod, and 33 mm adjustable air cushions at both ends. Note this SKU lacks a magnet, so it cannot take CMSE/DMSE sensors. The cushions only decelerate the piston near stroke end; they do not hold the load. For a dropped-air safety lock, add an external rod lock or pilot-operated check valve.
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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, 33 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 | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 200 to 275 mm extend contact point on a light assembly press without machining custom spacers.
Adjust the extend stop on the fly to accommodate different product lengths on a high-force packaging line.
The 75 mm adjuster is ideal when you need to dial in a precise end position on-site or want one shared spare across multiple stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a non-magnet SKU, you cannot fit CMSE/DMSE sensors; choose an -S variant if you need position detection. For a 275 mm stroke, always guide the load to prevent rod side-loading and premature seal wear.
Quick checklist
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port.
The 275 mm nominal stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable extend range of 200-275 mm. The retract end is fixed. This stop sets the end position and is not a load lock.
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