Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- CushionAdjustable, 20.5 mm
About the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder uses an external adjuster to shorten the extend stroke on-site by up to 75 mm. The nominal 80 mm stroke remains the maximum travel, letting you fine-tune the end position without swapping the actuator. Its extruded hard-anodized aluminium barrel is noticeably shorter than a same-bore ISO 15552 unit, saving machine space. The -S suffix means a built-in magnet is present, ready for CMSE or DMSE sensors to drop directly into the side grooves.
With the 75 mm window dialed in, usable extend travel spans 5 to 80 mm while the retract end stays fixed. This actuator handles about 589 N of real work safely, which translates to lifting roughly 50 kg vertically with a 2:1 margin. It feeds through a G1/4 port and decelerates smoothly via 20.5 mm adjustable air cushions at both ends. Note that the cushion only slows the piston near stroke end; 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 JSIJ50X80-75S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 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 JSIJ50X80-75S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×80 | 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 JSIJ50X80-75S Is Used
Tooling Stroke Trimmer
Dial the 75 mm window back to hit exact clamping depth on varying part heights without re-fitting the whole actuator.
Transfer Pin Setter
Set precise extend stops on a pusher transfer line so the rod extends exactly to the guide rail edge, tuning out mechanical drift.
Shared Spare Actuator
Keep one 80 mm nominal unit on the shelf and shorten the extend stroke on-site to cover multiple shorter-stroke machines during downtime.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S the Right Cylinder?
When sizing this 50 mm bore, the adjacent 40 mm bore yields 628 N push at 0.5 MPa for lighter duties, while stepping up to a 63 mm bore provides 1559 N for heavier cycles. The adjustable-stroke mechanism is ideal when you need to share one spare cylinder across several stroke variants or trim the extend end-position on-site without machining. You can mount it via basic, FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE switches for position confirmation. For any stroke length at or above 300 mm, always guide the load 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 JSIJ50X80-75S FAQ
At 0.5 MPa it pushes 982 N and pulls 825 N. At 0.7 MPa it pushes 1374 N and pulls 1154 N. The theoretical maximum force is 200 kgf at 1.0 MPa. This 50 mm bore actuator uses a G1/4 port and features a 20 mm piston rod with an M18x1.5 rod-end thread.
The -75 means the external stop screw can shorten the extend stroke by up to 75 mm on-site. The nominal 80 mm stroke is the maximum travel, so your usable extend range becomes 5 to 80 mm. The retract end is fixed, and the stop only sets the end position; it is not a load lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X80-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.