Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 900mm 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
- Stroke900 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 JSIJ40X900-50S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder brings on-site extend adjustability to long-stroke automation. The external stop screw lets you trim the extend stroke by up to 50 mm, giving a usable window of 850-900 mm without swapping the actuator. Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than a same-bore ISO 15552 unit.
The integrated -S piston magnet supports CMSE/DMSE switches that mount directly into the side grooves for precise end-position sensing. It handles a safe working load of about 377 N, which is roughly 32 kg lifted vertically with a 2:1 margin. Pneumatic connections use a G1/4 port, while adjustable air cushions of 20.5 mm at each end manage end-of-stroke impact. Remember that the cushion only decelerates; use an external rod lock or pilot-operated check valve if you need to hold a load on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 900 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 JSIJ40X900-50S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×900 | 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 JSIJ40X900-50S Is Used
Long-Reach Divert Gate
Adjusts the extend position by up to 50 mm to perfectly align a diverting gate at the end of a 900 mm conveyor lane without machining new stops.
Variable-Depth Pusher
Pushes packages varying in size down a long lane, using the external adjuster to set the 850-900 mm extend endpoint precisely for each batch.
Lowering Stop Arm
Acts as a height-limiting arm for a descending platform, offering on-site stroke trimming to accommodate different product thicknesses.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S the Right Cylinder?
Size this 40 mm bore against its neighbors: a 32 mm bore yields 402 N push at 0.5 MPa, while a 50 mm bore provides 982 N, making this model the middle ground for moderate force. The 50 mm adjustable window is ideal when you need to fine-tune a long 900 mm extend end-position on-site or share a spare across stroke variants. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. The -S suffix ensures you have the magnet for CMSE/DMSE sensors. Because the 900 mm stroke is long, always support the load with an external guide 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 JSIJ32~50 Adjustable Cylinder JSIJ40X900-50S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. The air port is G1/4.
The nominal 900 mm stroke is the maximum. The external stop screw lets you shorten the extend stroke by up to 50 mm on-site, yielding a usable extend range of 850-900 mm. The retract end remains fixed, and this mechanism sets end position rather than locking 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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