Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X25-30S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X25-30S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 25mm 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
- Stroke25 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 JSIJ100X25-30S
The hard-anodized aluminum extruded body keeps the overall envelope shorter than a same-bore ISO 15552 unit, saving valuable machine space without losing power. A built-in piston magnet (-S) allows CMSE or DMSE switches to drop directly into the side sensor grooves.
The JSIJ100X25-30S uses a 30 mm external stop-screw window to shorten the extend stroke from its 25 mm maximum right down to zero, while the retract end remains fixed. Air connects via a G1/2 port, and the adjustable air cushions at both ends decelerate the load smoothly.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X25-30S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X25-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 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 JSIJ100X25-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×25 | 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 JSIJ100X25-30S Is Used
Press Pin Insertion
Dial in the exact insertion depth on the production line using the 30 mm adjuster window, ensuring pins seat perfectly without bottoming out the tooling.
Heavy Part Seating
Lower heavy 200 kg assemblies into fixtures and fine-tune the final landing position via the external stop screw to compensate for material tolerances.
Short-Stroke Clamping
Secure large workpieces with a maximum 25 mm extend stroke, tweaking the clamping pressure endpoint precisely without changing out the hardware.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X25-30S the Right Cylinder?
The adjustable stroke is ideal when multiple machine variants share a common spare, as the external adjuster lets mechanics dial in the exact extend endpoint on the floor. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The integrated -S magnet supports CMSE/DMSE sensors for position confirmation. Because the 25 mm stroke is short, side-load stress is minimal, but always guide the load rigidly on any stroke over 300 mm.
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 JSIJ100X25-30S FAQ
At 0.5 MPa this 100 mm bore cylinder pushes with 3927 N and pulls with 3574 N. At 0.7 MPa the push is 5497 N and the pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. It features a 32 mm rod, a G1/2 port, an M26x1.5 rod thread, and 33 mm adjustable air cushions at both ends.
The -30 code indicates a 30 mm external stop-screw window. The nominal 25 mm extend stroke is the maximum, but you can shorten it on-site down to 0 mm by turning the adjuster. The retract end is fixed. Note that this stop screw sets the end position and decelerates the load; it does not lock the load, so you need an external rod lock or pilot-operated check valve to hold position on air loss.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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