Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X500-20S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X500-20S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 JSIJ40X500-20S
Generating 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder cuts a shorter overall length than a same-size ISO 15552 unit while integrating an on-site extend adjuster. The hard-anodized aluminum barrel carries a G1/4 port and a 16 mm rod, and the built-in magnet (-S) accepts CMSE/DMSE sensors in the side grooves.
The external stop screw provides a 20 mm shortening window, letting you fine-tune the extend end position from 480 to 500 mm without swapping the actuator. In practice it handles about 377 N of safe working load, which translates to roughly 32 kg lifted vertically with a 2:1 margin. Remember the air cushion only decelerates the piston; a plain cylinder drifts on air loss, so fit an external rod lock for held loads.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X500-20S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X500-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 JSIJ40X500-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×500 | 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 JSIJ40X500-20S Is Used
Conveyor Diverter Fine-Tuning
Dial in the exact 480 to 500 mm extend reach of a sorting gate on-site to match varying product widths without machining new mounts.
Vertical Lift Stops
Lift approximately 32 kg of packaged goods vertically, adjusting the upper stop position by up to 20 mm to perfect the hand-off height.
Shared Spare Actuator
Keep one cylinder on the shelf for multiple 500 mm stations, using the external adjuster to match slight end-position differences across machines.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X500-20S the Right Cylinder?
When sizing, the 32 mm bore drops to 402 N push at 0.5 MPa while the 50 mm jumps to 982 N, so this 40 mm bore sits right in the middle for moderate drive tasks. The 20 mm adjustable window is ideal for sharing a spare across stroke variants or dialing in a final end position on-site. Mounting options include FA, LB, TC, TCM1, and TCM2. Because the 500 mm stroke is long, always support the load with an external guide to prevent rod bending and side-load wear. The included -S magnet enables CMSE/DMSE position sensing.
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 JSIJ40X500-20S FAQ
This 40 mm bore cylinder pushes 628 N and pulls 528 N at 0.5 MPa, or pushes 879 N and pulls 739 N at 0.7 MPa, with a theoretical max of 128 kgf at 1.0 MPa. It uses a G1/4 air port, a 16 mm rod, and adjustable 20.5 mm cushions at both ends.
The nominal 500 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 20 mm on-site, giving a usable extend range of 480 to 500 mm. The retract end is fixed, and this stop only sets position—it does not lock the load.
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1-Year Warranty
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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