Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-40S
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-40S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 700mm 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
- Stroke700 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 JSIJ125X700-40S
Generating 6136 N of push force at 0.5 MPa, this 125 mm bore JIS actuator brings heavy-duty power to applications needing on-site end-position tuning. The hard-anodized aluminum profile barrel keeps the total length shorter than a same-bore ISO 15552 cylinder. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
The external stop screw provides a 40 mm window to shorten the extend stroke, yielding a usable 660-700 mm range while the retract end remains fixed. This means you can fine-tune the extend endpoint without physically swapping the cylinder. The -S suffix adds a built-in piston magnet for CMSE/DMSE switches that drop directly into the side grooves. Pneumatic connections use a G1/2 port, and the rod end features an M27x2.0 thread.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 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 JSIJ125X700-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×700 | 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 JSIJ125X700-40S Is Used
Heavy Pallet Lifts
Lifts loaded pallets where the exact up-stop needs 660-700 mm tuning to avoid crushing the load.
Press Stroke Tuning
Forms heavy parts by adjusting the 40 mm extend window to set precise material contact depth.
Multi-Position Diverters
Diverts heavy packages by tweaking the extend end position without changing the actuator body.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-40S the Right Cylinder?
When sizing this model, the neighboring 100 mm bore offers 3927 N push at 0.5 MPa for lighter frames, while stepping up is impossible as 125 mm is the maximum available bore. The adjustable 660-700 mm extend window is ideal for sharing a single spare across multiple stroke variants or dialing in exact end positions on-site. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. The integrated -S magnet supports CMSE/DMSE sensors for position feedback. Because the 700 mm stroke is long, always use external guides to prevent rod bending and manage side loads.
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 JSIJ125X700-40S FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it delivers 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a 1.5 MPa proof pressure, and runs at speeds of 30-500 mm/s.
The -40 code means an external adjuster lets you shorten the extend stroke by up to 40 mm on-site. The usable extend range is 660-700 mm, with the 700 mm nominal stroke being the maximum. The retract end is fixed. This stop sets the end position but does not lock the load; use an external rod lock or pilot-operated check valve to hold a load, as the air cushion only decelerates.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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