Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 270mm 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
- Stroke270 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20
The AirTAC SAIJ32X270-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 20 mm. This yields a usable stroke window of 250-270 mm, providing precise end-position tuning at commissioning without swapping out the entire unit. It delivers a 0.5 MPa push force of 402 N and features a SUS304 stainless steel rod for enhanced corrosion resistance.
The unit uses PT tapered port threads and relies on adjustable air cushions at both ends to manage end-of-stroke deceleration. Remember that this rear adjuster acts strictly as a travel stop, not a load-holding lock; the cylinder cannot maintain its position without continuous live air pressure. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 270 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 SAIJ32BX270-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×270 | 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 SAIJ32BX270-20 Is Used
Machine Setup Tuning
Dial in the exact 250-270 mm travel window during initial commissioning to perfectly strike a workpiece without adding external mechanical stops.
Product Changeover
Quickly adjust the end-stop position by up to 20 mm when running a slightly shorter product size on the same production line.
Clamping Positioning
Fine-tune the clamping reach on light-duty fixtures using the rear screw, ensuring precise contact without repositioning the entire cylinder assembly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20 the Right Cylinder?
When configuring this 32 mm bore unit, note that stepping up to a 40 mm bore increases the 0.5 MPa push force to 628 N, whereas dropping down is not an option below the standard 32 mm series. Choosing the SAIJ32X270-20 over a fixed-stroke SAI cylinder makes sense when you need variable end-stops for product changeovers or fine-tuning machine setup. To replace this ISO 15552 cylinder accurately, match the 32 mm bore, 270 mm stroke, 20 mm adjustment, PT ports, and the SUS304 (B) rod material.
With a 270 mm stroke, the 12 mm diameter piston rod has an unsupported length that warrants attention. While the robust M10x1.25 rod thread handles moderate loads well, you should still use an external guide to prevent side-load damage during extended travel.
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 SAIJ32BX270-20 FAQ
At a standard 0.5 MPa operating pressure, this 32 mm bore cylinder provides a push force of 402 N and a pull force of 345 N. The maximum force at 1.0 MPa is 82 kgf.
The rear adjuster screw lets you shorten the nominal 270 mm stroke by up to 20 mm, creating a usable travel window of 250-270 mm. This allows for fine end-position tuning without replacing the cylinder.
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.
Request a Quote for Airtac Adjustable Cylinder SAIJ32 SAIJ32BX270-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.