Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-30
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-30 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 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 JSIJ40X350-30
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder brings on-site extend flexibility to long-stroke automation. It uses a G1/4 port and an external adjuster that lets you shorten the extend stroke by up to 30 mm, giving a usable range of 320 to 350 mm without changing the unit. The retract end remains fixed. Built with an extruded hard-anodized aluminum barrel, the body is noticeably shorter and more compact than an ISO 15552 cylinder of the same bore.
In practical terms, it handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin. Because this is a non-magnet SKU, it cannot take a CMSE or DMSE sensor. A plain air cylinder also does not hold load on air loss; the adjustable cushion only decelerates near the ends, so fit an external rod lock or pilot-operated check valve if you need to suspend weight.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-30 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-30 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 JSIJ40X350-30
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×350 | 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 JSIJ40X350-30 Is Used
Conveyor Diverter Tuning
Fine-tune the 320 to 350 mm extend reach on-site to perfectly nudge varying carton widths off a belt without swapping cylinders.
Pallet Stop Adjustment
Dial in the external stop screw to shorten the extend stroke by up to 30 mm, accommodating different pallet depths at a packing station.
Flap Folding Control
Set the precise end position for folding carton flaps, using the adjuster to compensate for mechanical wear over time.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-30 the Right Cylinder?
When sizing, the neighboring 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 40 mm choice is underpowered. The 30 mm adjuster window is ideal for fine-tuning the extend end position on-site or keeping one shared spare across slightly different stroke variants. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Since this is a 350 mm stroke, always support the piston rod against side-load bending with an external guide. Remember this SKU lacks the -S magnet, so position sensing is not possible here.
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 JSIJ40X350-30 FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N. At 0.7 MPa it pushes 879 N and pulls 739 N. The theoretical maximum force is 128 kgf at 1.0 MPa. It uses a G1/4 port.
The 350 mm nominal stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 30 mm, yielding a usable extend range of 320 to 350 mm. The retract end is fixed, and this mechanism sets end position rather than locking the load.
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