Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-75S
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-75S 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 JSIJ125X175-75S
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder brings heavy-duty actuation into a compact footprint that is noticeably shorter than a same-bore ISO 15552 unit. The hard-anodized aluminum extruded barrel skips external rods for a clean exterior. Because the safe working load sits around 3682 N, it can lift roughly 313 kg vertically with a 2:1 margin.
The JSIJ125X175-75S uses an external stop screw to shorten the extend stroke on site by up to 75 mm, yielding a usable extend range of 100-175 mm while the retract end stays fixed. You can fine-tune the end position without physically swapping the cylinder. A built-in magnet (-S) allows CMSE or DMSE sensors to drop directly into the side grooves. The G1/2 port feeds the 32 mm rod, and adjustable 33 mm air cushions decelerate the load at both ends.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-75S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-75S |
|---|---|
| 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 JSIJ125X175-75S
| 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 JSIJ125X175-75S Is Used
Heavy Pallet Lifts
Raises loaded pallets in packaging lines, using the adjustable stroke to dial in exact stopping heights for different pallet sizes.
Press Clamping
Provides 6136 N of clamping force on heavy assembly presses, with the stop screw allowing quick repositioning for varied part thicknesses.
Large Gate Diversion
Actuates heavy flow-control gates on bulk material conveyors, tuning the extend length to regulate material flow volume.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X175-75S the Right Cylinder?
At the top of the range, this 125 mm bore is the heavy hitter; stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N. The -75 mm adjustable window is ideal when you need to share one spare cylinder across several stroke variants or dial in a precise end position on the machine. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet supports CMSE/DMSE switches for position feedback. For any stroke over 300 mm, always guide the load to prevent side-load damage to the rod seals.
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 JSIJ125X175-75S FAQ
At 0.5 MPa it pushes 6136 N and pulls 5734 N. At 0.7 MPa it pushes 8590 N and pulls 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, runs at 30-500 mm/s, and uses a G1/2 port with a 32 mm rod.
The 175 mm nominal stroke is the maximum extend length. The external adjuster lets you shorten the extend stroke by up to 75 mm on site, giving a usable range of 100-175 mm. The retract end is fixed. This stop only sets the end position; it does not hold the load on air loss, so use an external rod lock for vertical holding.
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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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