Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X900-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 900mm 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
- Stroke900 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 JSIJ100X900-40S
An external stop screw lets you shorten the forward travel by up to 40 mm, giving a usable range of 860-900 mm without changing the unit. The retract end remains fixed. Built with an extruded hard-anodized aluminum barrel, the JIS body is noticeably shorter and more compact than a same-bore ISO 15552 cylinder.
This double-acting double-rod model includes a -S piston magnet for CMSE/DMSE switches that drop directly into the side sensor grooves. Air flows through a G1/2 port, and adjustable air cushions of 33 mm at each end absorb end-of-stroke impact. Because the 900 mm travel is long, always use external guides to prevent rod bending under side loads. Note that a plain cylinder drifts on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve for held loads.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 JSIJ100X900-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×900 | 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 JSIJ100X900-40S Is Used
Long-Reach Press Dwell
Adjusts the 900 mm extend dwell on-site by up to 40 mm to tune part contact without repositioning the entire press fixture.
Transfer Line Stroke Trim
Trims the extend stroke from 900 mm down to 860 mm to match varying pallet sizes on the fly, ensuring precise handoff without machine teardown.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-40S the Right Cylinder?
When sizing this 100 mm bore, stepping down to an 80 mm cylinder drops the 0.5 MPa push force to 2513 N, while stepping up to 125 mm raises it to 6136 N. The -40 mm adjustable window is ideal for fine-tuning the extend end position on-site or keeping a shared spare across slightly different stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE sensors for position feedback. For the 900 mm stroke, external guide rails are strongly recommended to manage side loads and prevent rod bending.
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 JSIJ100X900-40S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port size is G1/2.
The nominal stroke is 900 mm, which is the maximum extend travel. The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, giving a usable range of 860-900 mm. The retract end is fixed, and the stop sets end position rather than holding the load.
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