Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X400-100S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X400-100S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 JSIJ40X400-100S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for tasks needing exact end-position tuning. The external stop screw lets you trim the extend stroke by up to 100 mm directly on the floor, dropping the usable extension from the 400 mm maximum down to 300 mm while the retract end stays fixed. It handles about 377 N of real work, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
The hard-anodized aluminium extruded barrel keeps the overall body shorter and more compact than a same-bore ISO 15552 unit. A built-in piston magnet works with CMSE/DMSE switches that drop into the side grooves for position sensing. Air connects via a G1/4 port, and adjustable air cushions of 20.5 mm decelerate the load at both ends. Remember that a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X400-100S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X400-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 JSIJ40X400-100S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSIJ40X400-100S Is Used
Tooling Touchpoint Calibration
Dial in the exact clamping extension within the 300 to 400 mm window on-site, avoiding the need to machine custom spacers when part dimensions vary slightly.
Variable Length Diverting
Adjust the pusher stroke up to 100 mm shorter to handle different package sizes on the fly without swapping out the entire actuator assembly.
Pallet Stop Positioning
Fine-tune the physical stop location for mixed pallet heights, using the external adjuster to set the precise 300 mm to 400 mm extend endpoint.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X400-100S the Right Cylinder?
When sizing this actuator, stepping up to the 50 mm bore raises the 0.5 MPa push force to 982 N, while dropping down to 32 mm lowers it to 402 N. The 100 mm adjustable window is ideal for sharing one spare across multiple stroke variants or fine-tuning a tooling touchpoint without machining. Mounting options include FA, LB, TC, TCM1, and TCM2 brackets. Because the 400 mm stroke creates leverage, always use an external guide rail to prevent rod bending and side-load damage. The -S suffix confirms the magnet is present for CMSE/DMSE sensors.
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 JSIJ40X400-100S 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 air port size is G1/4.
The -100 code means an external stop screw lets you shorten the extend stroke by up to 100 mm on-site. The nominal 400 mm stroke is the maximum, so your usable extension range is 300 to 400 mm. The retract end remains fixed, and this mechanism only sets the end position, acting as a load lock is not its function.
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