Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S 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.
- BoreØ100 mm
- Stroke275 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM26×1.5
- CushionAdjustable, 33 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S
The hard-anodized aluminum extruded barrel makes it shorter and more compact than a same-bore ISO 15552 unit. Because the nominal 275 mm stroke acts as the maximum, you can fine-tune the end position from 225 to 275 mm without swapping the cylinder.
The integrated -S magnet allows CMSE/DMSE sensors to drop directly into the side grooves for position detection. Pneumatic connections use a G1/2 port, and the adjustable air cushions decelerate the load at both ends. Remember that the cushion only slows the piston; for a locked load on air loss, install an external rod lock or pilot-operated check valve.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S |
|---|---|
| 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).
Theoretical Output Force (Ø100mm)
| 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).
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S
| 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.
Where the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S Is Used
Press Fit Tuning
Dial in the exact 225 to 275 mm extend position on-site to seat bearings without over-traveling, using the external stop screw to match part height variations.
Variable Length Diverter
Adjust the extend stroke by up to 50 mm to accommodate different package sizes on a sorting line without changing out the entire actuator assembly.
Tiered Pallet Stop
Set the retract and extend endpoints to act as a physical stop for pallets, fine-tuning the stop distance on the fly to align with different pallet depths.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S the Right Cylinder?
The -50 mm adjustable window is ideal when you need to share one spare cylinder across multiple stroke variants or fine-tune the extend endpoint on the machine. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S version includes the magnet for CMSE/DMSE switches. Because the 275 mm stroke exceeds 300 mm? No, but for any stroke at or above 300 mm, always use a guide rail to prevent side-load damage to the rod seal.
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 JSIJ100~125 Adjustable Cylinder JSIJ100X275-50S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port size is G1/2.
The -50 code means an external adjuster allows you to shorten the extend stroke by up to 50 mm on-site. The nominal 275 mm stroke is the maximum, giving you a usable extend range of 225 to 275 mm. The retract end remains fixed, and the stop screw sets the end position rather than locking the load.
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Standard models are processed and dispatched in 3-5 business days.
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