Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-30
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-30 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 JSIJ125X700-30
Delivering massive thrust in a compact envelope, this 125 mm bore JIS profile cylinder pushes 6136 N and pulls 5734 N at 0.5 MPa. The hard-anodized aluminum barrel omits external rods, making the body shorter and more compact than a same-bore ISO 15552 unit. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
The -30 code defines an external stop screw window that lets you shorten the extend stroke on-site by up to 30 mm, giving a usable range of 670 to 700 mm while the retract end stays fixed. You can fine-tune the end position without swapping the cylinder. Air connects via a G1/2 port, and adjustable 33 mm cushions decelerate the load at both ends. Note this SKU lacks a magnet and cannot take CMSE/DMSE sensors.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-30 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-30 |
|---|---|
| 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 JSIJ125X700-30
| 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 JSIJ125X700-30 Is Used
Heavy Pallet Lift
Raises loaded pallets in distribution hubs, using the 30 mm extend window to dial in exact stopping height for conveyor transfer.
Press Ejection
Pushes heavy stamped parts out of a hydraulic press, relying on 8590 N at 0.7 MPa to clear the die on every cycle.
Storage Tray Indexing
Actuates large automated storage trays, trimming the extend stroke on-site to match varying rack depths perfectly.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X700-30 the Right Cylinder?
This 125 mm bore sits at the top of the range, so if 6136 N push at 0.5 MPa is excessive, step down to the 100 mm bore which provides 3927 N. The adjustable stroke is ideal for sharing one spare across slight stroke variants or finalizing end positions during machine commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a 700 mm stroke, you must use external guides to prevent rod bending and side loads. Without a -S suffix, this version cannot support magnetic sensing.
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 JSIJ125X700-30 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 uses a G1/2 port and a 33 mm adjustable cushion at each end.
The nominal 700 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable range of 670 to 700 mm. The retract end is fixed. This stop only sets position; it does not lock the load, so use an external rod lock for holding.
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