Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-50S
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-50S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 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 JSIJ125X200-50S
Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore JIS profile cylinder brings heavy-duty motion into a compact footprint that is noticeably shorter than a same-bore ISO 15552 unit. The hard-anodized aluminum barrel sheds weight without external support rods. It handles about 3682 N of real work safely, which translates to lifting roughly 313 kg vertically with a 2:1 margin.
The -50S code means an external adjuster can shorten the 200 mm extend stroke on-site by up to 50 mm, yielding a usable 150-200 mm window for fine-tuning the end position without swapping the cylinder. A built-in magnet supports CMSE/DMSE switches in the side grooves. Air connects via a G1/2 port, and the retract end remains fixed.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-50S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 JSIJ125X200-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×200 | 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 JSIJ125X200-50S Is Used
Pallet Lifting
Raises heavy pallets in distribution hubs, using the 50 mm extend adjuster to fine-tune the lift height to varying load sizes without repositioning the cylinder.
Press Ejection
Pushes finished parts out of a large stamping press, relying on the 6136 N thrust and adjusting the end position to clear new die geometries on-site.
Heavy Shelving
Actuates deep-load shelving mechanisms where the 125 mm bore power is necessary and the built-in magnet confirms shelf position via CMSE sensors.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-50S the Right Cylinder?
When sizing this unit, dropping to the 100 mm bore drops thrust to 3927 N at 0.5 MPa, whereas this 125 mm bore peaks at 6136 N push. The on-site adjuster is ideal for sharing a single spare across multiple stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the -S magnet is present, you can fit CMSE/DMSE sensors directly. For any stroke at or above 300 mm, always use a guide rail to prevent side-load damage.
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 JSIJ125X200-50S FAQ
It provides 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push and 8028 N pull at 0.7 MPa, with a theoretical maximum of 1251 kgf at 1.0 MPa. It uses a G1/2 port.
An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 150-200 mm from the 200 mm nominal maximum. The retract end is fixed. This stop sets the end position but does not lock the load.
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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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