Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-50
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X125-50 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 125mm 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
- Stroke125 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 JSIJ100X125-50
The external adjuster allows you to shorten the forward stroke by up to 50 mm, giving a usable extend range of 75 to 125 mm without swapping the actuator. Its extruded hard-anodized aluminium barrel is purposefully shorter and more compact than a same-bore ISO 15552 unit, while the G1/2 port handles the required air volume.
The retract end remains fixed, and the adjustable air cushions at both ends provide 33 mm of deceleration for moving masses. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors; you would need the -S variant for position detection.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-50 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 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 JSIJ100X125-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | 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 JSIJ100X125-50 Is Used
Press Stroke Tuning
Dial in the exact 75 to 125 mm extend position on a light assembly press without machining new spacers, using the external adjuster to accommodate varying material thicknesses.
Pallet Stopper Gate
Act as a height-adjustable pallet stop in a compact palletizing cell where the shorter JIS profile saves valuable floor space compared to standard ISO 15552 actuators.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-50 the Right Cylinder?
This 100 mm model hits a strong middle ground for medium-to-heavy machinery. The 50 mm adjustable window is ideal for sharing a single spare cylinder across multiple stroke variants or fine-tuning the end position during machine commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the standard stroke here is 125 mm, side-load guidance is manageable, but for any application exceeding 300 mm of stroke, always use external guide rails to prevent rod binding.
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 JSIJ100X125-50 FAQ
At 0.7 MPa the push increases to 5497 N and the pull to 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore cylinder uses a G1/2 air port, features a 32 mm piston rod, and has 33 mm adjustable air cushions at both ends.
The nominal maximum extend stroke is 125 mm. The external stop screw mechanism lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable extend range of 75 to 125 mm. The retract end position is fixed. This mechanism only sets the end position and does not lock the load; if you need to hold a load vertically against air loss, you must add an external rod lock or pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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