
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-100S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 800mm 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 AirTAC adjustable-stroke actuator brings on-site flexibility to long-trreach tasks. The hard-anodized aluminum profile barrel makes it shorter and more compact than an ISO 15552 cylinder of the same 40 mm bore. It carries a built-in magnet for CMSE/DMSE sensors and uses a G1/4 port.
The external adjuster lets you shorten the extend stroke by up to 100 mm on site, giving a usable range of 700-800 mm without changing the cylinder itself. It handles a safe working load of about 377 N, which is roughly 32 kg lifted vertically with a 2:1 margin. Note that the retract end is fixed, and the air cushions only decelerate the piston rather than holding the load.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 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). |
| ×800 | 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.
Pushes parts off a conveyor over an 800 mm reach, using the 100 mm adjuster to dial the exact eject position for different pallet sizes.
Actuates a routing gate where the full 800 mm stroke is occasionally shortened by 100 mm to accommodate temporary physical obstructions.
Lowers a 32 kg vertical load using the 700-800 mm extend window, tweaking the stop screw to set precise resting heights on various shelves.
For sizing, the 40 mm bore pushes 628 N at 0.5 MPa; stepping down to a 32 mm bore drops that to 402 N, while a 50 mm bore raises it to 982 N. The 100 mm adjustable window is ideal when you need to fine-tune a long 800 mm end position on the machine or share a single spare across multiple stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. The -S suffix means the side grooves are ready for CMSE/DMSE switches. Because the stroke is 800 mm, always use an external guide to prevent rod bending and side-load damage.
Quick checklist
At 0.5 MPa it pushes 628 N and pulls 528 N. At 0.7 MPa it pushes 879 N and pulls 739 N. The theoretical maximum force is 128 kgf at 1.0 MPa. The cylinder uses a G1/4 port and a 16 mm rod.
The nominal 800 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 100 mm on site, yielding a usable extend range of 700-800 mm. The retract end remains fixed. This mechanism sets the end position and does not lock the load.
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