Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-40S
The AirTAC JSIJ100~125 Adjustable Cylinder JSIJ100X400-40S 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 JSIJ100X400-40S
The hard-anodized aluminum profile barrel keeps the total length shorter than a same-bore ISO 15552 cylinder. A built-in magnet (-S) allows CMSE or DMSE sensors to drop directly into the side grooves for precise position detection.
The external adjuster lets you shorten the 400 mm extend stroke by up to 40 mm on-site, giving a usable range of 360-400 mm without changing the hardware. Pneumatically fed through a G1/2 port, the retract end remains fixed while the stop screw fine-tunes the extend position. The adjustable air cushions provide 33 mm of deceleration at each end, though the cylinder relies on live air and will drift if pressure drops unless you fit an external rod lock.
Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-40S Technical Specifications
| Model | Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-40S |
|---|---|
| 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 JSIJ100X400-40S
| 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 JSIJ100X400-40S Is Used
Press Tonnage Calibration
Fine-tune the 40 mm extend window on-site to set precise pressing depth for heavy assembly operations without swapping actuators.
Pallet Stopper Adjustment
Accommodate varying pallet heights on a conveyor by dialing in the extend stroke up to 400 mm while relying on 3927 N of holding push.
Heavy Vertical Lowering
Control the descent of 200 kg loads using the adjustable cushion and external stopper, ensuring soft landings at the exact required depth.
Is the Airtac JSIJ100~125 Adjustable Cylinder JSIJ100X400-40S the Right Cylinder?
You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE switches. Because the 400 mm stroke creates leverage, always use an external guide rail to prevent rod bending and 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 JSIJ100X400-40S FAQ
At 0.7 MPa the push is 5497 N and the pull is 5003 N. The theoretical maximum force is 801 kgf at 1.0 MPa. It uses a G1/2 port, features a 32 mm rod, and has 33 mm adjustable air cushions at both ends.
The nominal 400 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable extend range of 360-400 mm. The retract end is fixed. This mechanism only sets the end position and does not lock the load; you need a pilot-operated check valve for load holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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