Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75S 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 JSIJ40X900-75S
Generating 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder delivers a 900 mm extend stroke that can be shortened on site. An external stop screw lets you trim the extend end position by up to 75 mm, yielding a usable range of 825 to 900 mm without swapping the actuator. The retract end remains fixed. This built-in adjustability is ideal for fine-tuning a long-stroke machine setup or standardizing a shared spare across slightly different stroke variants.
Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than an equivalent ISO 15552 cylinder of the same bore. It carries a G1/4 port, an M14x1.5 rod thread, and 20.5 mm adjustable air cushions at both ends. The -S suffix adds a piston magnet for CMSE/DMSE switches that drop directly into the side grooves. In practice it handles about 377 N of safe working load, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Note that the cushion only decelerates the piston; for a held load on air loss you must add an external rod lock or pilot-operated check valve.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75S |
|---|---|
| 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 JSIJ40X900-75S
| 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 JSIJ40X900-75S Is Used
Long-Transfer Pusher
Pushes parts down a 900 mm conveyor section, using the 75 mm adjuster to fine-tune the exact hand-off position for different product sizes.
High-Bay Divert Gate
Actuates a long diverting gate at the end of an aisle, trimming the extend stroke on site to match the physical stop without re-engineering the mount.
Packaging Feed Arm
Extends a feed arm to push cartons into a sealing zone, relying on the magnet and CMSE switch to confirm full extension before the cycle continues.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75S the Right Cylinder?
When sizing this 40 mm bore actuator, the adjacent 32 mm bore offers 402 N push at 0.5 MPa for lighter duties, while the 50 mm bore steps up to 982 N if your load demands more authority. The JSIJ series supports Basic, FA, LB, TC, TCM1, and TCM2 mounting styles to fit various frames. The integrated -S magnet allows precise end-of-stroke detection using CMSE/DMSE sensors. Because the 900 mm stroke is quite long, you must support the load with external guides to prevent rod bending and excessive side loading. The 75 mm adjustable window is a major selection advantage here, letting you dial in the exact extend endpoint on site rather than machining hard stops.
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 JSIJ40X900-75S 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. This 40 mm bore cylinder uses a G1/4 air port, a 16 mm rod, an M14x1.5 rod thread, and 20.5 mm adjustable cushions.
The nominal 900 mm stroke is the maximum extend length. The external adjuster 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. This mechanism sets the end position and does not lock the load; you need a pilot-operated check valve or rod lock to hold a load securely.
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Standard models are processed and dispatched in 3-5 business days.
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