Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-75
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-75 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 600mm 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
- Stroke600 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 JSIJ125X600-75
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder handles heavy automation tasks while remaining more compact than a same-bore ISO 15552 unit. The hard-anodized aluminum barrel keeps the assembly light, and the G1/2 port matches the high flow needed for this volume. It safely manages about 3682 N of real work, which translates to lifting roughly 313 kg vertically with a 2:1 safety margin.
The -75 code means an external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable range of 525 to 600 mm without changing the cylinder itself. The retract end remains fixed, and the adjustable air cushions provide 33 mm of deceleration at each end. Note this SKU lacks a magnet, so it cannot take CMSE or DMSE sensors; for the sensing version you need the -S variant.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-75 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-75 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 JSIJ125X600-75
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×600 | 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 JSIJ125X600-75 Is Used
Heavy Pallet Lifting
Raises loaded pallets in distribution hubs, using the 75 mm adjuster to fine-tune the exact raise height for different dock levels.
Press Ejection
Ejects heavy formed parts from large presses, benefiting from the 6136 N push force and 33 mm cushions to absorb impact.
Automated Storage Retrieval
Actuates heavy shelving units in automated warehouses, dialing in the extend stroke on-site to match varying bay depths.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X600-75 the Right Cylinder?
At the top of the size range, this 125 mm bore pushes 6136 N at 0.5 MPa, so dropping to an 80 mm bore drops your force to 2513 N. Going higher is impossible as 125 mm is the maximum. The -75 mm adjustable window is ideal for sharing a spare across stroke variants or fine-tuning the end position on-site. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the 600 mm stroke is long, always use an external guide to prevent rod bending and side loads. Remember this plain cylinder drifts on air loss; use an external rod lock or pilot-operated check valve to hold a load.
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 JSIJ125X600-75 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 is 1251 kgf at 1.0 MPa. The speed range is 30-500 mm/s, and the air port is G1/2.
The external stop screw lets you shorten the extend stroke by up to 75 mm on-site, giving a usable extend range of 525 to 600 mm. The nominal 600 mm stroke 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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