Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-50 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 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 JSIJ100X400-50
Its hard-anodized extruded aluminum profile barrel keeps the body shorter and more compact than a same-bore ISO 15552 cylinder. The G1/2 port feeds the 32 mm rod to generate substantial thrust.
An external adjuster allows you to shorten the extend stroke on-site by up to 50 mm, giving a usable range of 350 to 400 mm while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder. Note this SKU lacks a magnet, so it cannot take a CMSE or DMSE sensor.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 JSIJ100X400-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ100X400-50 Is Used
Press Fit Tuning
Dial in the exact 350 to 400 mm extend position on-site to seat bearings without bottoming out the tooling.
Pallet Stopper Gate
Adjust the 50 mm window to accommodate varying pallet heights on a conveyor while using the full 100 mm bore thrust.
Heavy Material Platen
Lower a 200 kg platen vertically, relying on the compact JIS profile to save machine footprint.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50 the Right Cylinder?
The adjustable 50 mm window is ideal for sharing one spare across multiple stroke variants or dialing in exact end positions on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 400 mm stroke creates leverage, use external guides to prevent rod bending under side loads. For position feedback, you must select the -S variant, as this plain version cannot host 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 JSIJ100X400-50 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 force is 801 kgf at 1.0 MPa. It uses a G1/2 port and a 32 mm rod.
The nominal 400 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 50 mm on-site, yielding a usable range of 350 to 400 mm. The retract end remains fixed. This mechanism sets the end position and is not a load lock.
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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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