Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S
The AirTAC JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S is a genuine double acting, double rod, adjustable stroke JIS-standard air cylinder with a Ø32mm bore and 40mm stroke, G1/8 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.
- BoreØ32 mm
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting, double rod, adjustable stroke
- Rod threadM10×1.25
- CushionAdjustable, 20 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 JSIJ32X40-20S
The extruded hard-anodized aluminium barrel leaves out external restraining rods, making the body shorter and cleaner than an equivalent ISO 15552 unit of the same bore.
The external stop screw lets you trim the extend stroke by up to 20 mm right on the floor, dropping the usable forward travel from the 40 mm maximum down to 20 mm without swapping the actuator. Because the -S suffix adds a piston magnet, the side grooves accept CMSE or DMSE reed and electronic switches for position feedback. The air supply connects via a G1/8 port, and the adjustable 20 mm cushions at both ends soften end-of-travel impacts.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod, adjustable stroke |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 mm |
| Max standard stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | 484 N |
| Max (@1.0 MPa) | 70 kgf | |
JSIJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 32 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×40 | 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 JSIJ32X40-20S Is Used
Clamp Stroke Trimming
Dial in the exact 25 mm forward clamp position on a machining fixture by using the adjuster to shorten the 40 mm nominal stroke on site.
Shared Spare Actuator
Keep one 32 mm bore cylinder on the shelf and adjust the extend stroke down from 40 mm to 20 mm to cover multiple short-stroke machine variants.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ32X40-20S the Right Cylinder?
The 20 mm on-site adjust window is ideal when you share one spare cylinder across several stroke variants or need to fine-tune an end position after a fixture change. Mounting choices cover Basic, FA, LB, TC, TCM1, and TCM2. The included magnet supports CMSE/DMSE sensors. For any stroke at or above 300 mm, guide the load externally to prevent side-load damage.
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 JSIJ32X40-20S FAQ
At 0.5 MPa it pushes 402 N and pulls 345 N. At 0.7 MPa it pushes 563 N and pulls 483 N. The theoretical maximum force is 82 kgf at 1.0 MPa. The air port size is G1/8.
The nominal 40 mm extend stroke is the maximum. The external adjuster lets you shorten the forward stroke by up to 20 mm on site, giving a usable extend range of 20 to 40 mm. The retract end is fixed. This stop sets the end position and does not lock the load.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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