Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S
The AirTAC SAIJ160X210-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel anywhere within a 160 to 210 mm window. Built with a SUS304 stainless steel rod, it delivers substantial thrust, generating 18095 N of push force at 0.9 MPa. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes a magnet, it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
This model uses a PT tapered port thread and relies on a 50 mm adjustment screw at the rear to set the retract end position without requiring external stops. The adjuster functions strictly as a travel stop and works alongside the 50 mm air cushions at both ends to decelerate the load, but it does not hold the load without live air pressure. For applications requiring true load-holding, an external rod lock or a related SAIL pneumatic lock cylinder is necessary.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 210 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 SAIJ160BX210-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×210 | 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 SAIJ160BX210-50S Is Used
Product Changeover
Dial in the 160 to 210 mm travel window during format size changes on a packaging line without replacing the cylinder or adding external mechanical stops.
Heavy Press Tuning
Fine-tune the exact end-position of a 18095 N pressing operation at machine commissioning to accommodate material thickness variations.
Variable End-Stop Assembly
Use the rear adjuster to safely vary the retract distance on heavy-duty assembly stations, relying on the 50 mm air cushions for smooth deceleration.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX210-50S the Right Cylinder?
Choose this 160 mm bore when you need heavy thrust that exceeds the 7068 N push force of a 100 mm cylinder at 0.9 MPa, or step down if your application requires less than the 18095 N provided here. An adjustable stroke is ideal for machine setups requiring commissioning fine-tuning or variable end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. When matching your ISO 15552 replacement, verify the 210 mm nominal stroke, 50 mm adjustment range, PT port thread, SUS304 rod material, and the -S magnet option.
Because the nominal stroke is 210 mm, you should evaluate the guide structure to manage side loads, as even the robust 40 mm diameter rod and M36x2 thread need external support on longer unsupported travels. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, deliberately omitting FB, CA, CB, and CR brackets. Operating speed for this bore size ranges from 30 to 500 mm/s.
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 SAIJ160BX210-50S FAQ
At an operating pressure of 0.9 MPa, this 160 mm bore cylinder provides a push force of 18095 N and a pull force of 9425 N. It reaches a maximum thrust of 2050 kgf at 1.0 MPa.
The rear adjuster acts as a stop that allows you to shorten the effective travel from the 210 mm nominal stroke down to 160 mm. It sets the end position and deceleration point but does not lock or hold the load without continuous air pressure.
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