Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-10
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-10 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 JSIJ125X700-10
Delivering massive thrust in a compact JIS format, this hard-anodized aluminum profile barrel avoids bulky rods and is shorter than a same-bore ISO 15552 unit. The 125 mm bore generates 6136 N of push force at 0.5 MPa, handling a safe working load of about 3682 N or roughly 313 kg lifted vertically with a 2:1 margin.
An external stop screw provides a 10 mm on-site extend-shortening window, letting you fine-tune the end position from 690 to 700 mm without swapping the cylinder. Air connects via a G1/2 port, and adjustable 33 mm cushions decelerate the heavy payload at both ends. Note this SKU lacks a magnet and cannot take CMSE/DMSE sensors; the -S variant is required for position detection.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-10 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-10 |
|---|---|
| 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 JSIJ125X700-10
| 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 JSIJ125X700-10 Is Used
Heavy Press Tuning
Use the 10 mm extend adjuster to dial in the exact bottom dead center on a 6136 N forming press without shimming the tooling.
Pallet Stop Calibration
Fine-tune the 700 mm stopping position on heavy pallet conveyors by shortening the stroke up to 10 mm directly on the floor.
Large Mold Clamping
Secure large injection molds with 1251 kgf of max holding force, tweaking the clamp reach 690-700 mm to match varying mold heights.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-10 the Right Cylinder?
This 125 mm bore sits at the top of the range, offering 6136 N push at 0.5 MPa versus 3927 N from the 100 mm bore, making it ideal for heavy presses. If you need less force, the 80 mm bore provides 2513 N. The 10 mm adjustable window is perfect for sharing a spare across slightly different 700 mm stroke machines. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 700 mm stroke is long, always use external guides to prevent rod bending under side loads. This non-magnet model cannot support sensors.
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 JSIJ125X700-10 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.
The external stop screw lets you shorten the extend stroke by up to 10 mm on-site, giving a usable range of 690 to 700 mm. The nominal 700 mm is the maximum, and the retract end is fixed. This mechanism sets the end position and does not lock the load.
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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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