Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 225mm 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
- Stroke225 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 JSIJ40X225-50
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for applications needing on-site end-position tuning. An external stop screw lets you trim the extend stroke by up to 50 mm, giving a usable forward range of 175 to 225 mm while the retract end remains fixed. The hard-anodized aluminum extruded barrel keeps the total envelope shorter and more compact than a same-bore ISO 15552 unit.
Practically, it handles about 377 N of safe working load, translating to roughly 32 kg lifted vertically with a 2:1 margin. Pneumatically it runs through a G1/4 port, driving a 16 mm rod with M14x1.5 end threads. Note that this specific SKU lacks a magnet, so it cannot take a CMSE or DMSE sensor switch. The adjustable air cushions decelerate the piston near stroke ends, but the cylinder will not hold a load on air loss without an external rod lock or pilot-operated check valve.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 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 JSIJ40X225-50
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×225 | 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 JSIJ40X225-50 Is Used
Tooling Position Trimming
Fine-tune the extend endpoint within the 175 to 225 mm window on-site to dial in exact clamping depth without swapping the cylinder.
Package Divert Stroke
Adjust the forward push distance up to 50 mm to handle varying carton sizes on a single sorting line.
Spare Consolidation
Keep one actuator in maintenance stock and shorten the nominal 225 mm extend as needed to fit multiple machine variants.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X225-50 the Right Cylinder?
When sizing this actuator, the 40 mm bore sits neatly between the lighter 32 mm option (402 N push at 0.5 MPa) and the larger 50 mm class (982 N push at 0.5 MPa), making it ideal for medium-duty work. The 50 mm adjustable window is especially useful for sharing a single spare across multiple stroke variants or fine-tuning a tooling position without machining new parts. You can mount it via basic, FA, LB, TC, TCM1, or TCM2 brackets. Because this SKU has no -S suffix, it cannot support magnetic sensing. For any stroke length at or above 300 mm, always use a guide rail to prevent side-load damage to the rod 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 JSIJ40X225-50 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 -50 indicates a 50 mm external adjuster window. The nominal 225 mm extend stroke is the maximum, and you can shorten the forward end position by up to 50 mm on-site, yielding a usable extend range of 175 to 225 mm. The retract end is fixed.
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