Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke900 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- 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 JSIJ50X900-75S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features a 900 mm stroke that can be shortened on-site by up to 75 mm via an external adjuster. The hard-anodized aluminum extruded barrel makes it shorter and more compact than a same-bore ISO 15552 unit. With the -S suffix, it includes a piston magnet for CMSE or DMSE switches that mount directly into the side grooves.
The external stop screw lets you fine-tune the extend end position between 825 and 900 mm without changing the cylinder itself, while the retract end remains fixed. It handles a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 margin. Pneumatic connections use a G1/4 port, and adjustable air cushions of 20.5 mm at each end absorb kinetic energy. Note that the cushion only decelerates the piston; an external rod lock or pilot-operated check valve is required to hold a load securely on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 JSIJ50X900-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | 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 JSIJ50X900-75S Is Used
Long-Transfer Pusher
Pushes parts down a 900 mm line with the 75 mm adjuster dialing in the exact release point without repositioning the cylinder mount.
Vertical Material Lift
Raises a 50 kg payload using the 0.5 MPa thrust, relying on the external guide rails to handle the long 900 mm rod extension safely.
Adjustable Pallet Stop
Acts as a fixed stop on a conveyor where the 75 mm external screw accommodates different pallet depths on the fly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X900-75S the Right Cylinder?
When sizing this actuator, the 50 mm bore provides 982 N push and 825 N pull at 0.5 MPa. If your application needs less force, the 40 mm bore offers 628 N push, while the 63 mm bore steps up to 1559 N push for heavier demands. The -75 mm adjustable window is highly useful for sharing a single spare cylinder across several stroke variants or dialing in a precise end position on the machine. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the 900 mm stroke is long, you must use external guides to prevent rod bending and manage side loads. The -S magnet supports CMSE/DMSE sensors for position feedback.
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 JSIJ50X900-75S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it delivers 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port size is G1/4.
The 900 mm nominal stroke is the maximum length. An external stop screw lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 825 to 900 mm. The retract end is fixed, and the stop screw only sets the end position; it does not lock the load.
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