Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S 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 JSIJ100X275-40S
The hard-anodized aluminium extruded barrel skips external rods entirely, while the integrated -S piston magnet allows CMSE or DMSE sensors to drop directly into the side grooves for precise position detection.
The JSIJ100X275-40S uses an external stop screw to 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. Nominal stroke remains the maximum, and the retract end stays fixed. Air connects via a G1/2 port, and adjustable air cushions of 33 mm at each end absorb shock. Remember that the cushion only decelerates; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve to hold a suspended load.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S |
|---|---|
| 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 JSIJ100X275-40S
| 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 JSIJ100X275-40S Is Used
Press Tonnage Trimming
Dial in the exact 235 to 275 mm extend contact point on a light assembly press without disassembling the line.
Variable Length Diverter
Tune the extend stop on-site to deflect different carton sizes off a belt using the same heavy-duty actuator.
Pallet Stop Adjustment
Shift the extend end-position by up to 40 mm to accommodate varying pallet depths in a compact JIS footprint.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S 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 125 mm raises it to 6136 N. The -40 mm adjustable window is ideal for sharing one spare across multiple stroke variants or fine-tuning the end position on-site without machining. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet supports reed and electronic switches. Because the 275 mm stroke exceeds 300 mm only marginally, always guide the load 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 JSIJ100X275-40S FAQ
At 0.5 MPa it pushes 3927 N and pulls 3574 N. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum is 801 kgf at 1.0 MPa. The air port is G1/2.
An external stop screw shortens the extend stroke by up to 40 mm on-site, yielding a usable forward travel of 235 to 275 mm. The nominal 275 mm stroke is the maximum, and the retract end remains fixed. The stop sets position only and does not lock the load.
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.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X275-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.