Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X50-40S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 50mm 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
- Stroke50 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 JSIJ100X50-40S
The extruded hard-anodized aluminium body omits external rods, making it noticeably shorter and more compact than a same-bore ISO 15552 unit.
The external stop screw provides a 40 mm adjustment window, letting you fine-tune the extend stroke down from the 50 mm maximum to as little as 10 mm directly on-site without swapping the cylinder. Air connects via a G1/2 port, and the -S suffix indicates a built-in piston magnet for CMSE/DMSE switches. Adjustable 33 mm air cushions at both ends decelerate the load smoothly, though an external rod lock is required if you need to hold position on air loss.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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 JSIJ100X50-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ100X50-40S Is Used
Press Clamping
Dial in the exact 10 to 50 mm clamping reach on-site using the 40 mm adjuster window to accommodate varying workpiece thicknesses without changing tooling.
Pallet Positioning Stops
Use the built-in magnet with CMSE/DMSE switches to confirm extend and retract positions, adjusting the stop screw precisely to match pallet heights.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X50-40S the Right Cylinder?
The JSIJ series supports Basic, FA, LB, TC, TCM1, and TCM2 mounting styles. The on-site extend-stroke tuning is ideal when you need to share a spare cylinder across multiple stroke variants or dial in a precise end position. Because this unit includes the -S magnet, you can easily fit CMSE/DMSE sensors into the side grooves. For any stroke length of 300 mm or more, always use a guide rail to prevent side-load damage to the piston rod.
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 JSIJ100X50-40S FAQ
At 0.7 MPa the push is 5497 N and pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. It features a 32 mm rod and a G1/2 air port.
The nominal stroke is 50 mm, which is the maximum extend length. The external stop screw lets you shorten the extend stroke by up to 40 mm on-site, giving a usable extend range of 10 to 50 mm. The retract end remains fixed. This mechanism sets the end position but does not lock the load.
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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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