Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke800 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S
Generating 982 N of push force at 0.5 MPa, this 50 mm bore JIS actuator brings on-site flexibility to long-stroke automation. The hard-anodized aluminum profile barrel keeps the total envelope more compact than a same-bore ISO 15552 unit. It handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin.
A built-in magnet (-S) allows CMSE or DMSE sensors to drop directly into the side grooves for position detection. The external stop screw provides a 75 mm adjustment window, letting you fine-tune the usable extend stroke anywhere from 725 to 800 mm without changing the cylinder itself. Air connects via a G1/4 port, and adjustable air cushions at both ends absorb the impact at the end of travel.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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).
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | 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.
Where the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S Is Used
Long-Transfer Pusher
Pushes pallets down an 800 mm transfer line, using the 75 mm adjuster to dial in the exact push distance for different box sizes.
Vertical Lift Gate
Raises a 50 kg access gate to its maximum 800 mm height, relying on the adjustable cushioning to soften the stop at the top.
Adjustable Divert Arm
Actuates a sorting arm on a packaging line, tweaking the extend stroke by up to 75 mm on-site to accommodate new product widths.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S the Right Cylinder?
When sizing this 50 mm bore actuator, the adjacent 40 mm bore yields 628 N of push at 0.5 MPa, while the 63 mm bore steps up to 1559 N, giving you clear boundaries for force scaling. The adjustable stroke is highly useful when you need to share one spare cylinder across several stroke variants or fine-tune the extend end position on the machine. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because the 800 mm stroke is quite long, always use an external guide rail to prevent rod bending and side-load damage. The included -S magnet supports reed or electronic switches for end-of-stroke confirmation.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X800-75S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it provides 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port size is G1/4.
The nominal 800 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 725 to 800 mm. The retract end remains fixed, and this mechanism only sets the end position rather than locking the load.
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