Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X700-20
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X700-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 700mm 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
- Stroke700 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 JSIJ40X700-20
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for applications needing exact end-position tuning. The hard-anodized aluminum barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 unit. It handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin.
The external adjuster allows you to shorten the extend stroke on-site by up to 20 mm, giving a usable range of 680-700 mm without changing the cylinder itself. Air connects via a G1/4 port, and adjustable air cushions of 20.5 mm decelerate the piston at both ends. Note that this SKU lacks a magnet and cannot take a CMSE/DMSE sensor; for that you need the -S variant.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X700-20 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X700-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 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 JSIJ40X700-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×700 | 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 JSIJ40X700-20 Is Used
Conveyor Diverter Tuning
Fine-tune the 700 mm extend stroke by up to 20 mm on-site to perfectly align a diverter gate without swapping the cylinder.
Packaging Pusher Adjustment
Adapt the end position on the fly for varying carton sizes, using the external adjuster to shorten the extend stroke as needed.
Long-Reach Part Ejector
Use the 680-700 mm stroke window to set the exact ejection distance while relying on external guides to support the long rod.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X700-20 the Right Cylinder?
When sizing, the neighbouring 32 mm bore offers 402 N push at 0.5 MPa, while the 50 mm bore steps up to 982 N, so this 40 mm bore sits squarely in the middle for medium-duty work. The -20 mm adjustable window is ideal for fine-tuning the extend end position on-site or sharing a single spare across multiple stroke variants. JSIJ mounting options include FA, LB, TC, TCM1, and TCM2. Because the 700 mm stroke is long, always use an external guide to prevent rod bending and side loads. This plain version has no magnet, so it cannot support 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 JSIJ40X700-20 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.
The -20 code means an external stop screw lets you shorten the extend stroke by up to 20 mm on-site. The usable extend range is 680-700 mm, with 700 mm being the maximum. The retract end is fixed. This stop sets the end position but does not hold the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
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