Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 800mm 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
- Stroke800 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 JSIJ40X800-75S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder uses an external adjuster to shorten the extend stroke on-site by up to 75 mm. The nominal 800 mm stroke remains the maximum travel, letting you fine-tune the end position without swapping the actuator. Its extruded hard-anodized aluminum barrel omits tie rods, making the body shorter and more compact than a same-bore ISO 15552 cylinder. The built-in -S magnet allows CMSE/DMSE sensors to drop directly into the side grooves for precise position detection.
Equipped with a G1/4 port and a 16 mm rod, the unit handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 margin. The retract end is fixed, while the front adjuster brings the usable extend range down to 725 mm. Remember that the adjustable stop only sets the end position; it does not lock the load. For holding a suspended weight during air loss, you must fit an external rod lock or a pilot-operated check valve.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 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 JSIJ40X800-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×800 | 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 JSIJ40X800-75S Is Used
Transfer Line Diversion
Fine-tunes the 800 mm extend reach by up to 75 mm on-site to match varying pallet sizes without replacing the cylinder.
Vertical Material Lift
Lifts roughly 32 kg of inventory using the 40 mm bore, with the -S magnet confirming the exact raised position.
Carton Pushing Station
Adjusts the extend end-point dynamically to push different box depths accurately off a packaging line.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X800-75S the Right Cylinder?
When sizing this actuator, the 40 mm bore provides 628 N push and 528 N pull at 0.5 MPa; stepping down to a 32 mm bore drops the push to 402 N, while moving up to a 50 mm bore increases it to 982 N. The -75 mm adjustable window is highly useful when you need to share a spare cylinder across slightly different stroke variants or perform on-site end-position tuning without machining. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this is an 800 mm stroke, you must support the load with external guides to prevent rod bending and excessive side loading. The included -S magnet works seamlessly with CMSE/DMSE switches for drop-in sensing.
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 JSIJ40X800-75S FAQ
This 40 mm bore cylinder uses a G1/4 port and generates 628 N push and 528 N pull at 0.5 MPa. At 0.7 MPa, the push increases to 879 N and the pull to 739 N. The theoretical maximum force is 128 kgf at 1.0 MPa.
The external stop screw lets you shorten the extend stroke by up to 75 mm on-site, giving a usable extend range of 725 to 800 mm. The nominal 800 mm stroke is the maximum travel, and the retract end remains fixed. This mechanism only sets the end position and does not lock the load.
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Standard models are processed and dispatched in 3-5 business days.
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