Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-20
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 150mm 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
- Stroke150 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 JSIJ40X150-20
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder brings on-site extend-stroke flexibility to mid-range pneumatic setups. The hard-anodized aluminum barrel keeps the total length shorter than a same-bore ISO 15552 unit, and the G1/4 port matches the standard 40 mm sizing. It safely handles about 377 N of real work, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
The external adjuster lets you shorten the extend stroke by up to 20 mm on-site, giving a usable range of 130-150 mm without changing the cylinder itself. The retract end remains fixed, while adjustable air cushions at both ends manage the 20.5 mm deceleration zone. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor; you would need the -S variant for position detection.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-20 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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 JSIJ40X150-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×150 | 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 JSIJ40X150-20 Is Used
Clamp Stroke Tuning
Dial in the exact 130-150 mm extend reach on a machining fixture so varying part heights are clamped with consistent force without re-engineering the mount.
Transfer Gate Stop
Adjust the stop position on-site by up to 20 mm to accommodate different package lengths on a sorting line without swapping out the entire actuator.
Vertical Lift Damping
Lift approximately 32 kg of goods using the 0.5 MPa push force, relying on the 20.5 mm adjustable air cushions to soften the end-of-stroke impact.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X150-20 the Right Cylinder?
When sizing, the neighboring 32 mm bore yields 402 N push at 0.5 MPa, while the 50 mm bore jumps to 982 N, so the 40 mm bore at 628 N is ideal for medium-duty tasks. The 20 mm adjustable window is perfect for fine-tuning the extend end position on the machine or sharing one spare cylinder across several slightly different stroke variants. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. For a 150 mm stroke, ensure adequate side-load guidance to prevent rod binding. Because this is a non-magnet SKU, switch to a JSIJ40X150-20-S if your application requires CMSE or DMSE sensors.
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 JSIJ40X150-20 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. It uses a 16 mm rod, an M14x1.5 rod thread, a G1/4 port, and adjustable air cushions of 20.5 mm at each end.
The nominal 150 mm stroke is the maximum extend length. An external stop screw allows you to shorten the extend stroke on-site by up to 20 mm, yielding a usable range of 130-150 mm. The retract end is fixed, and this mechanism sets the end position rather than locking the load.
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