Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 275mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke275 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S
The AirTAC SAIJ160X275-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 245 to 275 mm without external stops. Built with a SUS304 stainless steel rod (code B), it delivers 14074 N of push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and because this is a -S model, it includes a magnet ready for CMSE reed or DMSE electronic solid-state switches.
This heavy-duty actuator uses PT tapered port threads (G3/4) and operates at speeds between 30 and 500 mm/s. The rear adjuster acts purely as a mechanical stop to set the retract end position, meaning it does not hold the load dynamically without live air pressure. For load-holding requirements without continuous air, you should integrate an external pilot-operated check valve or select a SAIL pneumatic lock cylinder instead.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 275 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×275 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX275-30S Is Used
Heavy Press Tuning
Fine-tune the 245-275 mm travel window during machine commissioning to set exact pressing depths without adding external mechanical stops.
Product Size Changeover
Quickly adjust the retract end position by up to 30 mm when switching between different large-format product dimensions on the production line.
Large Assembly Actuation
Leverage the 14074 N push force at 0.7 MPa to move heavy pallets or fixtures, using the rear stop to precisely set the retraction point.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX275-30S the Right Cylinder?
Choose this 160 mm bore when an 80 mm cylinder (providing 3518 N push at 0.7 MPa) cannot meet your thrust requirements, but before stepping up to a massive 200 mm bore. The 30 mm adjustment range is ideal for product changeovers on large machinery, letting you dial in the exact end-stop at commissioning rather than swapping out a fixed-stroke SAI cylinder. When replacing an ISO 15552 actuator, match the 160 mm bore, 275 mm nominal stroke, 30 mm adjuster, PT G3/4 ports, SUS304 rod, and -S magnet.
Because the 275 mm stroke is substantial, the 40 mm diameter rod and M36x2 thread provide excellent rigidity, but long unsupported strokes still require an external guide to prevent excessive side-loading. Remember that the mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ160 Adjustable Cylinder SAIJ160BX275-30S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 30 mm, creating a usable travel window of 245 to 275 mm. This allows you to fine-tune the end position at commissioning, but it acts only as a travel stop and does not lock the load without live air pressure.
At a 0.7 MPa operating pressure, the SAIJ160X275-30-S provides 14074 N of push force and 9425 N of pull force. It can deliver a maximum push force of 18095 N at 0.9 MPa.
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