Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-30
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-30 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 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 JSIJ100X400-30
Air connects via a G1/2 port, driving a 32 mm piston rod with M26x1.5 threading.
The -30 code defines an external adjuster that shortens the extend stroke on-site by up to 30 mm, giving a usable range of 370 to 400 mm without swapping the cylinder. This on-site tuning is purely for setting the end position; it does not lock the load. A plain unit like this cannot hold position on air loss, and the 33 mm adjustable air cushions only decelerate the piston near the ends. Note that this specific SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-30 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 JSIJ100X400-30
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ100X400-30 Is Used
Press Fit Tuning
Use the 30 mm extend adjuster to fine-tune the exact bottoming position of a 200 kg vertical press without remounting the entire cylinder.
Long-Reach Diverter
Pushes heavy pallets along a sorting line, where the 370 to 400 mm stroke range accommodates varying product widths on-site.
Compact Lift Station
Lifts materials in tight spaces where the shorter JIS profile saves valuable machine footprint compared to standard ISO units.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-30 the Right Cylinder?
The adjustable stroke is highly useful when you need to fine-tune end positions on-site or want a shared spare across slightly different stroke variants. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the 400 mm stroke is substantial, always use external guides to prevent rod bending and manage side loads. For position feedback, you must select the -S magnet version, as this SKU cannot take a sensor.
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 JSIJ100X400-30 FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port and a 32 mm rod.
The -30 means an external stop screw lets you shorten the extend stroke by up to 30 mm on-site. The nominal 400 mm stroke is the maximum, so the usable extend range is 370 to 400 mm. The retract end remains fixed, and this mechanism only sets the end position rather than locking the load.
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