Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S
The AirTAC SAIJ160X270-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that creates a 220 to 270 mm usable travel window. Built with a SUS304 stainless steel rod and PT tapered ports, it delivers a robust 14074 N of push force at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
This adjustable-stroke design allows you to fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops. The rear adjuster acts solely as a travel stop to set deceleration, not as a load-holding lock; for position holding without live air pressure, consider the SAIL or BSAI series. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 270 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 SAIJ160BX270-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX270-50S Is Used
Heavy Press Tuning
Dial in the exact 220-270 mm retract position during metal forming press setup to accommodate different material thicknesses without changing tooling.
Product Diversion
Adjust the end-stop on the fly during packaging line changeovers to handle varying package lengths accurately.
Machine Commissioning
Fine-tune the travel window during initial equipment assembly to perfect mechanical timing without machining external spacers.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX270-50S the Right Cylinder?
Choose this 160 mm bore actuator when an application requires heavy thrust up to 18095 N at 0.9 MPa combined with a variable 220-270 mm end-stop. If you need less force, stepping down to a 100 mm bore yields 5497 N at 0.5 MPa, whereas moving up to a 200 mm bore provides 21991 N at 0.9 MPa. The adjustable stroke is ideal for machine setups requiring product changeovers, unlike a fixed-stroke SAI cylinder. Although the 40 mm rod and M36x2 thread handle high side loads, an external guide is recommended for this 270 mm stroke to prevent rod binding.
When matching ISO 15552 interchangeable dimensions, verify the 160 mm bore, 270 mm stroke, 50 mm adjustment, PT ports, and the -S magnet option. The standard speed range is 30-500 mm/s. Remember that the rear stopper and air cushions only manage travel ends; they will not hold a load without live air.
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 SAIJ160BX270-50S FAQ
At 0.9 MPa, this 160 mm bore cylinder provides 18095 N of push force and 9425 N of pull force at 0.5 MPa. The maximum operating pressure is 1.0 MPa.
The rear adjuster allows you to trim the effective travel back by up to 50 mm from the 270 mm nominal stroke, creating a 220 to 270 mm usable window. It functions as a mechanical stop for end-position tuning, not as a load-holding lock.
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