Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100S
The AirTAC Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100S 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 JSIJ125X200-100S
Delivering 6136 N of push force at 0.5 MPa, this large-bore JIS profile cylinder handles heavy automation tasks while remaining shorter and more compact than a same-bore ISO 15552 unit. The hard-anodized aluminum barrel uses no tie rods, and the G1/2 port feeds the 125 mm bore efficiently.
The external stop screw lets you shorten the extend stroke on-site by up to 100 mm, giving a usable range of 100-200 mm from the 200 mm nominal maximum. This on-site tuning means you can fine-tune the end position without swapping the cylinder. Factoring in a safe working load of about 3682 N, it lifts roughly 313 kg vertically with a 2:1 margin. The built-in magnet supports CMSE/DMSE sensors in the side grooves.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100S |
|---|---|
| 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 JSIJ125X200-100S
| 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 JSIJ125X200-100S Is Used
Press Fit Tuning
Shorten the extend stroke by up to 100 mm on-site to dial in the exact bottoming position for heavy bearing press fits without changing the cylinder.
Pallet Stop Adjustment
Use the adjustable end position to accommodate varying pallet heights on a heavy-duty conveyor, relying on the 313 kg vertical lift capacity.
Heavy Clamp Positioning
Fine-tune the clamping reach on large welding fixtures, utilizing the 6136 N push force and the compact JIS profile to save machine space.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ125X200-100S the Right Cylinder?
At the top of the range, this 125 mm bore provides massive output, stepping up from the 80 mm bore's 2513 N push. If you need less force, dropping to a 100 mm bore yields 3927 N at 0.5 MPa. The adjustable stroke is ideal for sharing a spare across stroke variants or finalizing end positions during commissioning. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a 200 mm stroke, keep side loads minimal by guiding the load externally. The -S suffix ensures compatibility with CMSE/DMSE reed or electronic 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 JSIJ125X200-100S FAQ
This 125 mm bore cylinder features a G1/2 port and delivers 6136 N push / 5734 N pull at 0.5 MPa, 8590 N push / 8028 N pull at 0.7 MPa, and a theoretical maximum of 1251 kgf at 1.0 MPa.
An external stop screw lets you shorten the extend stroke on-site by up to 100 mm, providing a usable range of 100-200 mm from the 200 mm nominal maximum. The retract end remains fixed, and this mechanism only sets the end position; it 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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Most inquiries answered within 7-8 hours.
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