Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X275-40 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 275mm 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
- Stroke275 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 JSIJ100X275-40
The hard-anodized aluminum extruded barrel keeps the assembly light, while the G1/2 port feeds the 32 mm piston rod to generate 5497 N at 0.7 MPa.
The -40 code defines an external adjuster window that lets you shorten the extend stroke on-site by up to 40 mm, giving a usable forward travel of 235 to 275 mm without swapping the cylinder. The retract end remains fixed, and the 33 mm adjustable air cushions at both ends decelerate the load smoothly. Note that this SKU lacks a magnet, so it cannot accept CMSE or DMSE sensors; for load holding on air loss, install an external rod lock or pilot-operated check valve, as the cushion only decelerates.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 275 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 JSIJ100X275-40
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 JSIJ100X275-40 Is Used
Press Stroke Tuning
Dial in the exact 235 to 275 mm clamping reach on a forming press using the external adjuster, avoiding cylinder replacement when material thickness changes.
Transfer Diverter Setup
Fine-tune the extend position of a heavy diverter gate on-site by up to 40 mm to perfectly match a new conveyor lane width.
Pallet Stop Calibration
Adjust the forward stop point for varying pallet depths without repositioning the hard-anodized aluminum barrel assembly.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40 the Right Cylinder?
When sizing this 100 mm bore, stepping down to an 80 mm unit drops the 0.5 MPa push force to 2513 N, while stepping up to a 125 mm bore raises it to 6136 N. The 40 mm adjustable window is ideal for sharing a single spare cylinder across multiple stroke variants or fine-tuning the end position on-site without machining. You can mount it via Basic, FA, LB, TC, TCM1, or TCM2 brackets. Because this is a non-magnetized SKU, position sensing is not possible. For this 275 mm stroke, ensure adequate side-load guidance to prevent rod bearing wear.
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 JSIJ100X275-40 FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. This 100 mm bore unit uses a G1/2 air port and a 32 mm rod with an M26x1.5 thread.
The nominal stroke is 275 mm, which is the maximum extend travel. The -40 indicates an external adjuster that lets you shorten the extend stroke on-site by up to 40 mm, yielding a usable range of 235 to 275 mm. The retract end is fixed, and this stop mechanism only sets the end position; it does not lock the load.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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