Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-75S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X300-75S 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 JSIJ100X300-75S
The extruded hard-anodized aluminium barrel omits tie rods entirely, making the overall body shorter and more compact than a same-bore ISO 15552 unit. A G1/2 port feeds the 32 mm piston rod, while adjustable 33 mm air cushions decelerate the payload at both ends.
The -75 code means an external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable forward range of 225-300 mm without swapping the cylinder. Because the nominal 300 mm stroke remains the maximum, you can fine-tune the end position perfectly during commissioning. The -S suffix adds a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves for position sensing.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-75S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-75S |
|---|---|
| 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 JSIJ100X300-75S
| 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 JSIJ100X300-75S Is Used
Press Fit Tuning
Dial in the exact seating depth of a bearing on-site using the 75 mm adjuster window, avoiding the need to machine custom spacers for each job.
Variable Transfer Stop
Adjust the extend stroke from 225 to 300 mm to handle different pallet sizes on a single line without physically replacing the actuator.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X300-75S the Right Cylinder?
The adjustable stroke is ideal for sharing a spare across stroke variants or dialling in end positions on-site. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors. Because the stroke is 300 mm, you must support the load with an external guide to prevent rod bending and side-load damage.
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 JSIJ100X300-75S FAQ
The theoretical maximum force is 801 kgf at 1.0 MPa. The air port is G1/2.
An external stop screw lets you shorten the extend stroke on-site by up to 75 mm. The usable extend range is 225-300 mm, with the 300 mm nominal stroke acting as the maximum. The retract end is 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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