Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM18×1.5
- 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 JSIJ50X50-20
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore pneumatic actuator brings precise on-site end-position tuning to compact assembly machinery. An external stop screw lets technicians shorten the extend stroke by up to 20 mm, meaning the usable extension range is 30-50 mm while the retract end remains fixed. This on-site adjustability lets you fine-tune the stroke without swapping the cylinder, and the hard-anodized aluminum profile barrel keeps the overall build shorter than a same-bore ISO 15552 unit.
In practical terms, the unit handles a safe working load of roughly 589 N, which translates to lifting about 50 kg vertically with a 2:1 safety margin. The G1/4 port feeds the double-acting single-rod system, and adjustable air cushions of 20.5 mm at each end absorb kinetic energy near stroke end. Note that this plain SKU lacks a magnet and cannot take a CMSE or DMSE sensor; for position feedback you need the -S variant.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20 Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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 JSIJ50X50-20
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×50 | 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 JSIJ50X50-20 Is Used
Press Fit Tuning
Shortens the extend stroke by up to 20 mm on-site to set exact pressing depth for small bearing inserts without machining new stopper blocks.
Divertor Gate Adjustment
Fine-tunes the extend position of a sorting flap by 30-50 mm to accommodate different package widths on a shared production line.
Compact Ejector Station
Uses the shorter JIS profile to fit a tight ejection mechanism, retracting parts quickly while the external adjuster dials in the exact kick distance.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20 the Right Cylinder?
When sizing this actuator, the 50 mm bore sits comfortably in the mid-range, offering significantly more thrust than a 40 mm bore (628 N push at 0.5 MPa) but less than the 63 mm class (1559 N). The adjustable stroke feature is ideal for machines that share a common spare across slightly different stroke variants, as the 20 mm window allows on-site end-position tuning to compensate for mechanical drift. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because this is a plain non-magnetized model, it cannot support magnetic sensing. For any application involving a stroke of 300 mm or more, always use an external guide rail to prevent excessive side-loading on the piston rod.
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 JSIJ50X50-20 FAQ
At 0.5 MPa it provides 982 N push and 825 N pull. At 0.7 MPa the forces are 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.
The nominal stroke is 50 mm, which is the maximum extension. An external stop screw allows you to shorten the extend stroke on-site by up to 20 mm, giving a usable extend range of 30-50 mm. The retract end is fixed. This mechanism only sets the end position and does not lock the load; for load holding on air loss, you must use an external rod lock or pilot-operated check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC JSI Cylinders
Request a Quote for Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X50-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.