Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X800-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X800-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 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 JSIJ100X800-40S
The hard-anodized aluminium extrusion omits tie rods entirely for a clean exterior, while the G1/2 port handles the air volume needed for dynamic movement. A built-in magnet (-S) allows CMSE or DMSE switches to drop directly into the side sensor grooves.
The -40 code means an external stop screw lets you shorten the extend stroke on-site by up to 40 mm, giving a usable forward range of 760 to 800 mm without changing the cylinder itself. This makes it ideal for fine-tuning end positions or sharing a spare across stroke variants. Remember that the retract end is fixed, and the adjustable air cushions only decelerate the load; they do not hold it in place on air loss.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X800-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X800-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 JSIJ100X800-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×800 | 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 JSIJ100X800-40S Is Used
Press Stroke Tuning
Fine-tune the clamping reach on a large press by dialing the extend stroke back up to 40 mm, ensuring perfect material contact without remounting the actuator.
Vertical Lift Platform
Lift loads up to 200 kg in a vertical lifting jig, relying on the 100 mm bore power and the built-in magnet to confirm the raised position via DMSE sensors.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X800-40S the Right Cylinder?
When sizing this 100 mm bore, stepping down to an 80 mm cylinder drops the 0.5 MPa push force to 2513 N, whereas moving up to a 125 mm bore increases it to 6136 N. The adjustable stroke is a major advantage when you need to tune the final end position on-site or want a single spare part to cover slight stroke variations. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors. Because the 800 mm stroke is long, always use external guides to prevent rod bending and manage side loads.
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 JSIJ100X800-40S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port size is G1/2.
The nominal 800 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable range of 760 to 800 mm for precise end-position tuning. The retract end remains fixed.
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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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