Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-30S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X125-30S 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 JSIJ100X125-30S
The external adjuster lets you shorten the extend stroke by up to 30 mm, giving a usable range of 95-125 mm without swapping the cylinder. The G1/2 port feeds the 32 mm rod, and the extruded hard-anodized aluminum profile makes it shorter and more compact than a same-bore ISO 15552 cylinder.
Because this is the -S variant, a built-in piston magnet lets you drop CMSE or DMSE reed and electronic switches directly into the side grooves for precise positioning. The retract end remains fixed while you fine-tune the extend end position via the external stop screw. Remember that the 33 mm adjustable air cushions only decelerate the piston near stroke ends; they do not hold a load. For vertical or suspended loads that must resist drift on air loss, add an external rod lock or pilot-operated check valve.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-30S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-30S |
|---|---|
| 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 JSIJ100X125-30S
| 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 JSIJ100X125-30S Is Used
Press Tonnage Calibration
Use the 30 mm extend adjuster to dial in the exact 95-125 mm contact point on a light assembly press, fine-tuning the crushing distance without changing the actuator body.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-30S the Right Cylinder?
This JSIJ100X125-30S is ideal when you need the 801 kgf maximum theoretical force class but want a shared spare across machines with slightly different extend lengths. The 30 mm adjuster window lets one cylinder cover a 95-125 mm extend range, tuning the end position on-site. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet supports CMSE/DMSE sensors. For any stroke at or over 300 mm, always use a guide rail to prevent side-load damage to the rod seals.
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 JSIJ100X125-30S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. It features a 100 mm bore, a 32 mm rod with an M26x1.5 thread, a G1/2 port, 33 mm adjustable cushions at both ends, and operates at 30-800 mm/s.
The nominal 125 mm stroke is the maximum extend length. The external stop screw mechanism lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 95-125 mm. The retract end position is fixed. This stop sets the end position and does not lock the load.
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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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