Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-30
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X300-30 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 300mm 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
- Stroke300 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 JSIJ100X300-30
The extruded hard-anodized aluminium barrel omits external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. The G1/2 port feeds the 32 mm piston rod to deliver these high forces.
The JSIJ100X300-30 features an external adjuster that shortens the EXTEND stroke on-site by up to 30 mm, giving a usable forward travel of 270 to 300 mm while the retract end stays fixed. This lets you fine-tune the end position without physically swapping the cylinder. Note that this specific SKU lacks a magnet and cannot take CMSE or DMSE sensors; you need the -S variant for position detection. Furthermore, the adjustable air cushions only decelerate the load near the stroke ends, so fit an external rod lock or pilot-operated check valve if you need to hold a load securely on air loss.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-30 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 300 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 JSIJ100X300-30
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×300 | 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 JSIJ100X300-30 Is Used
Press Fit Tuning
Use the 30 mm extend shortening window to precisely dial in the bottoming position of a press fit without changing the machine height or swapping cylinders.
Pallet Stop Adjustment
Adjust the forward stop on the fly to handle slightly different pallet depths on a conveyor line while maintaining the full 300 mm maximum stroke when needed.
Heavy Vertical Lift
Leverage the 200 kg vertical lift capacity to lower heavy fixtures, relying on the 33 mm adjustable cushions to decelerate the load smoothly at the end of travel.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-30 the Right Cylinder?
The 30 mm adjustable stroke window is especially useful when you need on-site end-position tuning or want a single spare part to cover several stroke variants. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. Because the 300 mm stroke creates leverage, always support the rod against side-load bending and use external guides to prevent premature wear.
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 JSIJ100X300-30 FAQ
This 100 mm bore cylinder uses a G1/2 port and a 32 mm rod. It pushes 3927 N and pulls 3574 N at 0.5 MPa. At 0.7 MPa it pushes 5497 N and pulls 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
The external adjuster lets you shorten the EXTEND stroke by up to 30 mm on-site. The usable forward travel is 270 to 300 mm, with the 300 mm nominal stroke being the maximum. The retract end remains fixed, and the adjuster only sets the end position, not a load lock.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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