Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X275-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X275-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 275mm 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
- Stroke275 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 JSIJ40X275-50
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for tight machinery. Its extruded hard-anodized aluminum barrel makes it shorter and more compact than a same-bore ISO 15552 unit. The G1/4 port and M14x1.5 rod thread keep pneumatic and mounting integration standard.
The external adjuster lets you shorten the extend stroke on-site by up to 50 mm, giving a usable range of 225-275 mm while the retract end stays fixed. This means you can fine-tune the end position without swapping the cylinder. It handles a safe working load of about 377 N, which is roughly 32 kg lifted vertically with a 2:1 margin. Note this SKU lacks a magnet, so it cannot take CMSE/DMSE sensors.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X275-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X275-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 275 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 JSIJ40X275-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×275 | 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 JSIJ40X275-50 Is Used
End-Stop Trimming
Dial in the exact 225-275 mm extend reach on a machining fixture without machining new hard stops.
Transfer Pusher
Adjust the push distance on-site to handle different carton widths on a packaging line.
Compact Divert
Fit the shorter JIS profile body into tight conveyor gaps to push items onto branch lanes.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X275-50 the Right Cylinder?
Size this 40 mm bore against the 32 mm and 50 mm options: the 32 mm yields 402 N push at 0.5 MPa, while the 50 mm provides 982 N, so pick the 40 mm for mid-range jobs needing 628 N. The 50 mm adjuster window is ideal when you need on-site end-position tuning across shared stroke variants. Mounting choices include FA, LB, TC, TCM1, and TCM2. Because this is a no-S SKU, it cannot accept a magnetic sensor. For this 275 mm stroke, guide the load to prevent rod side-loading. A plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve to hold a suspended load.
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 JSIJ40X275-50 FAQ
At 0.5 MPa it delivers 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. It uses a G1/4 port.
The nominal 275 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, yielding a usable range of 225-275 mm. The retract end is fixed, and this stop only sets position, it does not lock the load.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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