Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-50S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X900-50S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 900mm 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
- Stroke900 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 JSIJ100X900-50S
The external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 850-900 mm without changing the unit. The hard-anodized aluminum extruded barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 cylinder.
Air connects via a G1/2 port, driving the 32 mm rod at speeds of 30-800 mm/s with adjustable 33 mm air cushions at both ends. Because this is an -S SKU, a built-in piston magnet allows CMSE/DMSE switches to drop directly into the side grooves for position sensing. The retract end remains fixed while you fine-tune the extend position. Note that the cushion only decelerates the load; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-50S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 JSIJ100X900-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×900 | 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 JSIJ100X900-50S Is Used
Long-Stroke Diverting
Pushes heavy pallets across a wide transfer bed, using the 50 mm extend window to fine-tune the divert position without moving the rear mount.
Vertical Lift Stations
Lifts approximately 200 kg of product racks vertically, relying on external guides to handle the 900 mm stroke while the cushion decelerates the load.
Press Ejection
Ejects finished parts from a large press bed, adjusting the extend stroke on-site to clear different die heights safely.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X900-50S the Right Cylinder?
The 100 mm bore sits in a heavy-duty class, offering 5497 N at 0.7 MPa. The 50 mm adjustable window is ideal for sharing a single spare across multiple stroke variants or dialing in a final end position after a fixture change. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 900 mm, you must support the load with external guides to prevent rod bending and excessive side loading. The -S magnet supports CMSE/DMSE sensors, whereas a no-S SKU cannot take a sensor.
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 JSIJ100X900-50S FAQ
At 0.5 MPa the cylinder pushes with 3927 N and pulls with 3574 N. At 0.7 MPa the push force is 5497 N and the pull force is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. For continuous work, expect a safe load around 2356 N.
The nominal stroke is 900 mm, which is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 850-900 mm. The retract end is fixed, and the adjuster sets the end position rather than locking the load.
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Standard models are processed and dispatched in 3-5 business days.
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