Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-100
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-100 is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø100mm bore and 400mm 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.
- BoreØ100 mm
- Stroke400 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM26×1.5
- 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 JSIJ100X400-100
The extruded hard-anodized aluminum barrel omits tie rods entirely, making the overall body shorter and more compact than a same-bore ISO 15552 unit. It feeds through a G1/2 port and uses a 32 mm rod with an M26x1.5 thread.
The -100 code means an external adjuster can shorten the extend stroke on-site by up to 100 mm, dropping the usable extension from the 400 mm maximum down to 300 mm without swapping the cylinder. The retract end remains fixed, while the adjustable 33 mm air cushions at both ends absorb kinetic energy near the stroke limits. This stop mechanism sets the end position and is not a load lock.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-100 Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-100 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/2 |
| Rod thread | M26×1.5 |
| 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 – 800 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3525 N | 3525 N |
| 0.7 MPa | 4935 N | 4935 N |
| Max (@1.0 MPa) | 719 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-100
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 100 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ100X400-100 Is Used
Press Stroke Tuning
Dial in the exact 300 to 400 mm extend position on-site to accommodate varying material thicknesses without re-mounting the actuator.
Vertical Load Lowering
Safely lower components weighing up to 200 kg, relying on the 33 mm cushions to decelerate the mass before the fixed retract end.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-100 the Right Cylinder?
Conversely, moving up to a 125 mm bore offers 6136 N for heavier demands. The adjustable stroke is ideal for fine-tuning end positions on-site or standardizing a shared spare across different stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this is a no-S SKU, it lacks a magnet and cannot accept CMSE or DMSE sensors. Finally, with a 400 mm stroke, you must support the load with external guides to prevent rod bending and manage side loads.
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 JSIJ100X400-100 FAQ
The theoretical maximum is 801 kgf at 1.0 MPa. It uses a G1/2 port, a 32 mm rod, an M26x1.5 rod thread, and operates at 30-800 mm/s.
The nominal 400 mm stroke is the maximum extension. The external adjuster allows you to shorten the extend stroke by up to 100 mm on-site, giving a usable range of 300 to 400 mm. The retract end is fixed. Note that this mechanism only sets the end position; it does not hold the load on air loss, so you need an external rod lock for holding.
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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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