Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-75S 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 JSIJ50X700-75S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder shortens the extend stroke by up to 75 mm on-site via an external stop screw. The nominal 700 mm stroke remains the maximum travel, while the retract end stays fixed. Because the extruded hard-anodized aluminium body omits tie rods entirely, the overall envelope is noticeably shorter and more compact than a same-bore ISO 15552 cylinder. A built-in piston magnet ships standard, ready to accept CMSE or DMSE reed and electronic switches in the side grooves.
In practical terms the drive handles a safe working load of roughly 589 N, which equates to lifting about 50 kg vertically with a 2:1 safety margin. Air enters through the G1/4 port, and adjustable 20.5 mm cushions at both ends absorb kinetic energy near the end caps. Remember that the cushion only decelerates 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 load mid-stroke.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-75S |
|---|---|
| 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 JSIJ50X700-75S
| 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 JSIJ50X700-75S Is Used
Transfer Line Diverter
Fine-tune the 700 mm extend reach by up to 75 mm to perfectly align a pusher arm with varying pallet widths without swapping the actuator.
Vertical Package Lift
Lifts roughly 50 kg of boxed goods using the 982 N push force, relying on the adjustable cushion to soften the stop at the top of the 700 mm travel.
Long-Reach Clamping Head
Extends deep into a machine to clamp parts, using the external adjuster to dial in the exact grip position independently of machine timing.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X700-75S the Right Cylinder?
When sizing this unit, the adjacent 40 mm bore yields 628 N of push at 0.5 MPa, whereas stepping up to the 63 mm bore provides 1559 N, giving you a clear upgrade path if the 50 mm class is marginal. The 75 mm adjuster is invaluable for syncing multiple actuators or trimming an end position without machining a new custom cylinder. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S suffix means the magnet is already inside for position sensing. Because the 700 mm stroke is quite long, always support the rod against side loads with an external linear guide to prevent bending and premature seal 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 JSIJ50X700-75S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa the output rises to 1374 N push and 1154 N pull. The theoretical maximum force is 200 kgf at 1.0 MPa. This 50 mm bore unit uses a G1/4 air port and features a 20 mm piston rod with an M18x1.5 rod-end thread.
An external stop screw lets you shorten the extend stroke on-site by up to 75 mm from the nominal 700 mm maximum, yielding a usable extend range of 625 to 700 mm. The retract end position remains fixed. This mechanism only sets the end position and does not lock the load.
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