Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-30S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X50-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 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 JSIJ100X50-30S
The hard-anodized aluminum barrel keeps the assembly light, and the G1/2 port matches the bore's high flow demands. A built-in piston magnet (-S) allows CMSE or DMSE switches to drop directly into the side grooves for precise position detection.
The -30 code means an external adjuster can shorten the 50 mm extend stroke on-site by up to 30 mm, giving a usable extend range of 20 to 50 mm without swapping the cylinder. This on-site tuning is ideal for dialing in a specific end position, while the retract end remains fixed. Note that the adjustable stop sets the end position but does not hold the load; for any drop-prevention requirement you must add an external rod lock or pilot-operated check valve, as the air cushions only decelerate near the stroke ends.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-30S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 JSIJ100X50-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ100X50-30S Is Used
Press Fit Dialing
Use the 30 mm adjuster to fine-tune a 20 to 50 mm extend position on-site, ensuring a light-duty press fit adapts to varying material thicknesses without remounting the actuator.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-30S the Right Cylinder?
When sizing this 100 mm bore actuator, stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, while stepping up to 125 mm increases it to 6136 N. The adjustable stroke feature is highly valuable when you need to fine-tune a 20 to 50 mm extend end position on the floor, or when you want a single shared spare across several slightly different stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The -S suffix means the magnet is already included for electronic or reed sensors. Because this is a 50 mm stroke, side-load guide concerns are minimal, but for any future application pushing this bore over 300 mm, external guide rails are strongly recommended to protect 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 JSIJ100X50-30S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore unit uses a G1/2 port and features a 33 mm adjustable air cushion at each end.
The nominal extend stroke is 50 mm. The external adjuster allows you to shorten that extend stroke on-site by up to 30 mm, yielding a usable extend range of 20 to 50 mm. The retract end is fixed. This mechanism only sets the end position and does not lock the load.
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Standard models are processed and dispatched in 3-5 business days.
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