Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20
The AirTAC SAIJ32X500-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 480-500 mm window. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model utilizes a 12 mm rod and M10x1.25 thread to handle moderate loads, operating at speeds of 30-800 mm/s. The rear stopper screw lets you dial in the exact retract position during commissioning without adding external stops. Remember that this adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×500 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 Is Used
Machine Changeover
Dial in the 480-500 mm retract position during product size changes without swapping out the entire cylinder or repositioning hard stops.
End-Position Calibration
Fine-tune the final retract point at commissioning to achieve precise alignment, absorbing minor mechanical tolerances in the fixture.
Variable End Stops
Provide adjustable physical stops for sorting or diverting mechanisms on a conveyor line where the exact actuation distance needs occasional tweaking.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 the Right Cylinder?
Choose this 32 mm bore when you need precise end-position tuning in a compact footprint, offering 402 N push and 345 N pull at 0.5 MPa. If your application requires higher force, stepping up to the 40 mm bore yields 628 N of push force. The adjustable 480-500 mm travel window is ideal for machine setups requiring variable end-stops or product changeovers, serving as a more flexible alternative to a fixed-stroke SAI cylinder.
Because this cylinder features a 500 mm stroke, the extended rod is susceptible to side-loading; always use an external guide rail to prevent binding. For an exact ISO 15552 replacement, match the 32 mm bore, 500 mm stroke, 20 mm adjustment, PT port, and your required mounting set (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this plain SAIJ does not lock or hold position without continuous air; for load-holding, consider the SAIL or BSAI series.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ 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 Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-20 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum push force of 724 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 500 mm stroke by up to 20 mm, creating a usable travel window of 480-500 mm. This stopper only sets the travel end and does not function as a lock to hold the load without air pressure.
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