Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 175mm 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.
- BoreØ125 mm
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- 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 JSIJ125X175-100
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder is built for heavy-duty actuation without external tie rods. The hard-anodized aluminium barrel makes the body shorter and more compact than a same-bore ISO 15552 unit. It handles a safe working load of roughly 3682 N, which translates to lifting about 313 kg vertically with a 2:1 safety margin.
The model features a 175 mm nominal extend stroke and a G1/2 port. An external stop screw lets you shorten the extend travel on-site by up to 100 mm, giving a usable range of 75 to 175 mm. This allows fine end-position tuning without swapping the cylinder. Note that this SKU lacks a magnet and cannot take a CMSE or DMSE sensor.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×175 | 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 JSIJ125X175-100 Is Used
Heavy Pallet Lifting
Lifts roughly 313 kg vertically with a 2:1 margin, ideal for raising loaded pallets in packaging lines where the extend stop is tuned to match varying pallet heights.
Press End-Position Tuning
The 100 mm adjuster window lets operators dial in the exact extend stop on-site for pressing or clamping tasks without changing the cylinder body.
Compact Heavy Stops
Fits into tight machine frames thanks to a JIS profile that is shorter than an ISO 15552 cylinder, providing massive stopping power for heavy material stops.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-100 the Right Cylinder?
When sizing this unit, the 125 mm bore sits at the top edge of the range, offering 6136 N push at 0.5 MPa; dropping to an 80 mm bore cuts that force to 2513 N. The adjustable stroke is ideal for sharing a spare across stroke variants or tuning end positions on-site. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. For any stroke length at or above 300 mm, always use a guide to prevent side-load damage. Because this is a no-S SKU, it cannot accept a magnetic 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 JSIJ125X175-100 FAQ
At 0.5 MPa it delivers 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. This 125 mm bore unit uses a G1/2 port and features a 33 mm adjustable air cushion at each end.
The 175 mm nominal stroke is the maximum extend length. The external stop screw lets you shorten the extend stroke on-site by up to 100 mm, yielding a usable range of 75 to 175 mm. The retract end remains fixed. This mechanism sets the end position and is not a load lock; for holding a load on air loss, use an external rod lock or pilot-operated check valve.
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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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