Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X180-30S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X180-30S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 180mm 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
- Stroke180 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 JSIJ40X180-30S
Shaving 30 mm off the extend stroke on-site is the defining trick of this 40 mm bore JIS actuator, letting you fine-tune the 180 mm maximum down to a 150 mm working end position without swapping the cylinder. Built as a hard-anodized aluminum profile barrel, it is noticeably shorter and more compact than a same-bore ISO 15552 unit. The 16 mm rod and G1/4 port deliver a solid 628 N of push force at 0.5 MPa, which translates to a safe working load of about 377 N or roughly 32 kg lifted vertically with a 2:1 margin.
Because this is the -S variant, a built-in piston magnet is included for CMSE/DMSE switches that drop directly into the side sensor grooves. The external stop screw sets the extend endpoint precisely, while the retract end remains fixed. Remember that the adjustable air cushion only decelerates the piston near the ends; it does not lock the load, so fit an external rod lock or pilot-operated check valve if you need to hold a vertical load on air loss.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X180-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X180-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 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 JSIJ40X180-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×180 | 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 JSIJ40X180-30S Is Used
End-Stop Trimming
Dial in the exact 150 to 180 mm extend reach on a machining fixture without machining new spacers or changing the cylinder.
Transfer Stroke Tuning
Adjust the push-off distance on the fly as product sizes change on the packaging line, using the 30 mm window for quick changeovers.
Vertical Lift Dampening
Lift a 32 kg load using the 628 N push force, relying on the 20.5 mm adjustable air cushions to decelerate the payload smoothly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X180-30S the Right Cylinder?
When sizing this 40 mm bore, the adjacent 32 mm bore offers 402 N of push at 0.5 MPa for lighter duties, while stepping up to the 50 mm bore yields 982 N for heavier cycles. The -30 mm adjustable window is ideal when you need to dial in a precise end position on the machine or want a single shared spare across several stroke variants. JSIJ mounting options cover Basic, FA, LB, TC, TCM1, and TCM2. The -S magnet supports CMSE/DMSE sensors, and for any stroke at or over 300 mm, always guide the load to prevent side-load wear on the seals.
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 JSIJ40X180-30S FAQ
This 40 mm bore cylinder uses a G1/4 port and a 16 mm rod. It generates 628 N push and 528 N pull at 0.5 MPa, 879 N push and 739 N pull at 0.7 MPa, with a theoretical maximum of 128 kgf at 1.0 MPa.
The nominal 180 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable range of 150 to 180 mm. The retract end is fixed, and the stop only sets position; it does not lock the load.
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