Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-100
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-100 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 JSIJ40X350-100
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder features a 350 mm nominal stroke that can be shortened on-site by up to 100 mm. The external adjuster lets you fine-tune the extend end position anywhere between 250 mm and 350 mm without swapping the actuator, while the retract end remains fixed. Its hard-anodized aluminum extruded barrel omits external rods, making the overall body shorter and more compact than a same-bore ISO 15552 unit. A practical choice for moderate loads, it handles about 377 N of safe working force, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
This double-acting single-rod actuator uses a G1/4 port and adjustable air cushions at both ends to decelerate the piston smoothly. It operates at speeds of 30-800 mm/s. Note that this specific SKU lacks a magnet and cannot accept CMSE or DMSE sensors; order the -S variant if you require position detection. Furthermore, the adjustable stop sets the end position but does not lock the load—if air pressure is lost, you will need an external rod lock or pilot-operated check valve to prevent drifting.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-100 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-100 |
|---|---|
| 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 JSIJ40X350-100
| 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 JSIJ40X350-100 Is Used
Conveyor Diverter Tuning
Dial in the exact pusher extension distance on-site to accommodate different package widths without changing the cylinder.
Variable Carton Sealing
Adjust the extend stroke on the fly to match varying flap heights, ensuring precise sealing pressure across product changes.
Adjustable Sorting Gate
Fine-tune the gate actuation endpoint within the 250-350 mm window to redirect items of varying dimensions smoothly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X350-100 the Right Cylinder?
When sizing this 40 mm bore actuator, stepping down to a 32 mm bore reduces the push force to 402 N at 0.5 MPa, whereas stepping up to a 50 mm bore increases it to 982 N. The 100 mm adjustable window is highly useful for sharing a single spare cylinder across multiple stroke variants or dialing in exact end positions on-site. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because the 350 mm stroke is relatively long, always use external guides to prevent rod bending and manage side loads. Remember that a plain non-magnetic SKU cannot support sensors, so select the -S version if your control system requires CMSE or 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 JSIJ40X350-100 FAQ
This 40 mm bore cylinder generates 628 N push and 528 N pull at 0.5 MPa, 879 N push and 739 N pull at 0.7 MPa, and a theoretical maximum of 128 kgf at 1.0 MPa. It uses a G1/4 air port.
The nominal 350 mm extend stroke is the maximum. The external adjuster allows you to shorten the extend stroke on-site by up to 100 mm, yielding a usable range of 250-350 mm. The retract end is fixed, and this mechanism sets the end position rather than locking the load.
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