Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 700mm 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.
- BoreØ50 mm
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder features an external adjuster that lets you shorten the extend stroke on-site by up to 40 mm. The nominal 700 mm travel remains the maximum, giving a usable extend range of 660-700 mm, while the retract end stays fixed. This on-site tuning means you can fine-tune the end position without physically swapping the cylinder. The hard-anodized aluminum extruded barrel omits tie rods entirely, making the overall body shorter and more compact than a same-bore ISO 15552 unit.
Equipped with a -S piston magnet, the body accepts CMSE or DMSE reed and electronic sensors that drop directly into the side grooves. It handles a safe working load of about 589 N, which translates to lifting roughly 50 kg vertically with a 2:1 safety margin. Air connections use a G1/4 port, and adjustable 20.5 mm cushions at both ends manage end-of-stroke deceleration. Note that the cushion only slows the piston; 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 JSIJ50X700-40S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 JSIJ50X700-40S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×700 | 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 JSIJ50X700-40S Is Used
Extended-Reach Transfer
Pushes parts across a wide conveyor belt, using the 40 mm adjuster to dial the exact 660-700 mm extend position so items land precisely at the robot pickup point.
Multi-Depth Storage Pusher
Acts as a shared spare across storage lanes that need slightly different extend lengths, tweaking the external stop screw on-site instead of buying multiple unique cylinders.
Vertical Lowering Arm
Lowers a 50 kg fixture using the 982 N push force at 0.5 MPa, relying on the 20.5 mm adjustable cushion to decelerate smoothly at the bottom of the 700 mm travel.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-40S the Right Cylinder?
When sizing this 50 mm bore, the adjacent 40 mm option yields 628 N push at 0.5 MPa, while the 63 mm bore steps up to 1559 N, letting you move up or down a class if your energy budget changes. The adjustable 660-700 mm extend window is ideal when you need to dial in a precise end position on the machine or want to standardize one spare across several slightly different stroke variants. Mounting choices cover Basic, FA, LB, TC, TCM1, and TCM2 brackets. Because the 700 mm stroke is long, always guide the load externally to prevent rod bending and side-load wear.
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 JSIJ50X700-40S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa it delivers 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. The air port size is G1/4.
The -40 means an external stop screw lets you shorten the extend stroke by up to 40 mm on-site. The nominal 700 mm stroke is the maximum, giving a usable extend range of 660-700 mm, while the retract end remains fixed.
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