Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75 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 JSIJ40X900-75
Generating 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for long-reach tasks where the exact extend endpoint needs on-site tuning. An external stop screw lets you shorten the extend stroke by up to 75 mm, giving a usable range of 825 to 900 mm while the retract end remains fixed. The hard-anodized aluminium extruded barrel makes the body shorter and more compact than a same-bore ISO 15552 unit. It connects via a G1/4 port and uses a 16 mm rod with an M14x1.5 thread.
In practical terms, the cylinder handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin. The 20.5 mm adjustable air cushions at both ends absorb kinetic energy near the stroke ends. Because this SKU lacks a magnet, it cannot accept CMSE or DMSE sensors; for position feedback, you would need the -S variant. Remember that the cushion only decelerates the piston, so an external rod lock or pilot-operated check valve is required to hold a load securely on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75 |
|---|---|
| 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 JSIJ40X900-75
| 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 JSIJ40X900-75 Is Used
Transfer Line Diverter
Pushes packages across a long conveyor belt, using the 75 mm adjuster to dial in the exact contact position for different box sizes without changing the actuator.
High-Bay Pusher Arm
Extends 900 mm to push inventory onto storage shelves, relying on the compact JIS profile to fit within tight vertical machinery clearances.
Long-Reach Clamping Fixture
Reaches across a wide workbed to hold parts, using the adjustable end-stop to compensate for material thickness variations on site.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X900-75 the Right Cylinder?
When sizing this 40 mm bore, step down to a 32 mm bore for lighter duties (402 N push at 0.5 MPa) or step up to a 50 mm bore for heavier loads (982 N push at 0.5 MPa). The 75 mm adjustable window is highly useful when you need to fine-tune the extend endpoint without physically swapping the cylinder, or when you want a shared spare across slightly different stroke variants. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the 900 mm stroke is quite long, always use external guides to prevent rod bending and manage side loads. This non-magnetic SKU cannot take a sensor; choose the -S version if you need CMSE/DMSE switches.
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 JSIJ40X900-75 FAQ
At 0.5 MPa it provides 628 N push and 528 N pull force. At 0.7 MPa it provides 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. It features a 16 mm rod, an M14x1.5 rod thread, a G1/4 port, and 20.5 mm adjustable air cushions at both ends.
The nominal stroke is 900 mm, which 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 position is fixed. This mechanism only sets the end position and does not lock the load.
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