Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-50S 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 JSIJ100X400-50S
The hard-anodized aluminium barrel keeps the total length shorter than a same-bore ISO 15552 unit.
The external stop screw lets you trim the extend stroke by up to 50 mm on site, giving a usable range of 350-400 mm without swapping the cylinder. Air connects via a G1/2 port, and the -S suffix means a built-in magnet for CMSE/DMSE sensors. The retract end remains fixed, and the adjustable cushions only decelerate the load.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50S |
|---|---|
| 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 JSIJ100X400-50S
| 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 JSIJ100X400-50S Is Used
Press Tonnage Trimming
Dial in the exact 350-400 mm extend position on-site via the 50 mm window to set precise press contact depth without machining spacers.
Multi-Position Stacking
Leverage the magnetic -S option with CMSE sensors to confirm intermediate extend lengths created by the external stop screw.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-50S the Right Cylinder?
The 50 mm adjuster window is ideal for sharing one spare across multiple stroke variants or fine-tuning the end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the stroke is 400 mm, always use an external guide to prevent rod bending under side loads. Note that a plain cylinder drifts on air loss; use an external rod lock for held 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 JSIJ100X400-50S 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 max force is 801 kgf at 1.0 MPa. The air port is G1/2.
The nominal 400 mm extend stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 50 mm, yielding a usable range of 350-400 mm. The retract end is fixed, and this stop only sets the end position; it 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 JSIJ100X400-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.