Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X250-30
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X250-30 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 250mm 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
- Stroke250 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 JSIJ100X250-30
The hard-anodized aluminum barrel operates on a G1/2 port, driving a 32 mm rod with M26x1.5 threading.
The JSIJ100X250-30 uses an external stop screw to shorten the extend stroke on-site by up to 30 mm, giving a usable range of 220-250 mm while the retract end remains fixed. You can fine-tune the end position without swapping the cylinder, and the adjustable 33 mm air cushions at both ends absorb shock. Note this plain SKU lacks a magnet and cannot take a CMSE/DMSE sensor; add the -S variant if you need position detection.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X250-30 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X250-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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 JSIJ100X250-30
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSIJ100X250-30 Is Used
Press Fit Tuning
Dial in the exact 220-250 mm extend position for seating bearings without remounting the actuator.
Heavy Diverter Gate
Pushes high-inertia loads using the 33 mm cushions to soften end-of-stroke impacts safely.
Pallet Stopper Adjustment
Fine-tune the stopper distance on-site by up to 30 mm to accommodate varying pallet dimensions.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X250-30 the Right Cylinder?
The 30 mm adjustable window is ideal for sharing a spare across stroke variants or dialing in final end positions on-site without machining. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a 250 mm stroke, ensure adequate side-load guidance to prevent rod bearing wear. Remember that air cushions only decelerate the piston; for held loads on valve center or air loss, install an external rod lock or pilot-operated check valve.
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 JSIJ100X250-30 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. It uses a G1/2 port, a 32 mm rod, and adjustable 33 mm cushions at both ends.
The nominal 250 mm stroke is the maximum. An external adjuster lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable extend range of 220-250 mm. The retract end is fixed, and this stop only sets position; it 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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