
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X200-30S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 200mm stroke, G1/4 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.
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder features a 200 mm nominal stroke with an external adjuster that lets you shorten the extend travel by up to 30 mm on site. The hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit. It handles about 377 N of real work safely, which means you can lift roughly 32 kg vertically with a 2:1 margin.
Because this is the -S variant, a built-in piston magnet works seamlessly with CMSE or DMSE switches that drop directly into the side grooves. The G1/4 port and M14x1.5 rod thread match the standard 40 mm architecture. Remember that the external stop screw fine-tunes the end position but does not lock the load; you will need an external rod lock or pilot-operated check valve to hold a load securely on air loss.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X200-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×200 | 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 extend stop within a 170 to 200 mm window on a clamping fixture without machining new spacers.
Adjust the pusher stroke by up to 30 mm on site to accommodate different package sizes on a sorting line.
Stock one cylinder for multiple 40 mm bore machines and set the specific extend travel during installation.
When sizing this 40 mm bore, stepping down to a 32 mm bore drops the 0.5 MPa push force to 402 N, while stepping up to a 50 mm bore increases it to 982 N. The adjustable stroke is ideal for sharing one spare across multiple stroke variants or fine-tuning the end position on the machine without swapping the cylinder. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The included -S magnet supports CMSE and DMSE sensors. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the rod.
Quick checklist
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. It operates at speeds of 30-800 mm/s.
The 200 mm nominal stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 30 mm on site, giving a usable range of 170 to 200 mm. The retract end is fixed, and the adjuster only sets the end position rather than locking the load.
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