Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X125-40S 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 JSIJ100X125-40S
Its extruded hard-anodized aluminum profile barrel leaves no external tie rods, making the overall body shorter and more compact than a same-bore ISO 15552 cylinder. The G1/2 port handles the required air volume for its 32 mm rod.
The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, dropping the usable forward travel from the 125 mm maximum down to 85 mm without swapping the cylinder. The built-in magnet (-S) accepts CMSE/DMSE sensors in the side grooves for precise position detection.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40S |
|---|---|
| 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 JSIJ100X125-40S
| 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 JSIJ100X125-40S Is Used
Press Fit Tuning
Dial in the exact 85 to 125 mm extend position on-site to seat bearings without changing the physical cylinder mount.
Variable Divert Stroke
Shorten the forward stroke by up to 40 mm to accommodate different package sizes on a shared sorting line.
Pallet Stop Adjustment
Fine-tune the stopping end position for mixed pallet heights while maintaining high push force.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X125-40S the Right Cylinder?
The adjustable stroke window is ideal for sharing a single spare cylinder across multiple machines that need slightly different end positions. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. Because this SKU includes the -S magnet, you can fit CMSE/DMSE reed or electronic switches directly into the barrel groove. For any stroke at or over 300 mm, always use a guide rail to prevent side-load wear on 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 JSIJ100X125-40S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port size is G1/2.
An external stop screw lets you shorten the extend stroke on-site by up to 40 mm. The usable forward travel becomes 85 to 125 mm, with 125 mm being the maximum. The retract end remains fixed. This mechanism sets the end position but does not lock the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Authorized Export Seller
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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