Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 450mm stroke, G1/4 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.
- BoreØ40 mm
- Stroke450 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionAdjustable, 20.5 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 JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder features an external adjuster that shortens the extend stroke on-site by up to 40 mm. The nominal 450 mm stroke serves as the maximum travel, letting you fine-tune the end position without swapping the actuator. It handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 cylinder.
Because this is an -S variant, a built-in piston magnet allows CMSE or DMSE switches to drop directly into the side grooves for position sensing. Air connects via a G1/4 port, and adjustable air cushions at both ends absorb kinetic energy near the stroke limits. The retract end remains fixed while the external stop screw dials in the exact extend endpoint. Note that a plain cylinder does not hold load on air loss; the cushion only decelerates, so fit an external rod lock or pilot-operated check valve if you need to suspend a load.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×450 | 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 JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S Is Used
Sorter Diverter Tuning
Dial in the exact 410 to 450 mm extend reach on a packaging line to deflect varying box sizes without changing the cylinder mount.
Press Stroke Setup
Use the 40 mm external adjuster to fine-tune the extend endpoint on a light assembly press, accommodating different material thicknesses on the fly.
Vertical Lift Stops
Lift components up to 32 kg and set the precise raise height on a transfer shelf, relying on the adjustable stop screw for repeatable positioning.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S the Right Cylinder?
When sizing this actuator, compare it against the neighbouring 32 mm bore, which provides 402 N of push force at 0.5 MPa, and the larger 50 mm bore, which yields 982 N. The 40 mm bore strikes a middle ground with 628 N push and 528 N pull at 0.5 MPa. The 40 mm adjustable window is particularly useful when you want a shared spare across machines that need slightly different end positions, as you can tune the extend stroke from 410 to 450 mm on the floor. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S magnet supports CMSE/DMSE sensors for exact tracking. Because the 450 mm stroke is long, always use an external guide rail to prevent rod bending and premature seal wear from 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 JSIJ32~50 Adjustable Cylinder JSIJ40X450-40S FAQ
At 0.5 MPa this 40 mm bore cylinder provides 628 N push and 528 N pull force. At 0.7 MPa it delivers 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port size is G1/4.
The external stop screw lets you shorten the extend stroke on-site by up to 40 mm. The usable extend range is 410 to 450 mm, with the nominal 450 mm being the maximum travel. The retract end remains fixed, and the stop screw sets the end position but does not lock the load.
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