Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 170mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke170 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S
The AirTAC SAIJ63X170-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 130-170 mm usable travel window, allowing you to dial back the 170 mm nominal stroke by up to 40 mm during commissioning. This bore size delivers 1559 N of push thrust at 0.5 MPa, making it suitable for medium-force handling tasks.
Equipped with a SUS420J2 stainless steel rod (A option) and a -S magnet, this unit supports AirTAC CMSE reed and DMSE solid-state sensors via the dual-side barrel grooves. The rear stopper acts purely as a travel end-limit for deceleration and positioning; it is not a lock and will not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 36 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×170 | 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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S Is Used
Machine Changeovers
Dial in the 130-170 mm travel window on the fly to accommodate different product lengths without physically replacing the actuator.
End-Position Tuning
Fine-tune the retract stop during commissioning to perfect timing and absorb shock, avoiding the need to machine custom spacers.
Assembly Line Conveying
Pushes parts with 1559 N of force at 0.5 MPa, using the rear adjuster to synchronize multiple cylinder endpoints across a wide conveyor setup.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S the Right Cylinder?
Choose this 63 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient but an 80 mm bore (2513 N) would be overkill. The 40 mm adjustment range is ideal for product changeovers where exact end-position tuning is required without swapping out the entire cylinder or adding external mechanical stops. For applications requiring true load-holding without continuous air pressure, consider the SAIL or BSAI series instead.
To match this ISO 15552 replacement exactly, specify a 63 mm bore, 170 mm stroke, up to 40 mm adjustment, PT tapered port threads, and the -S magnet option. Since the 170 mm stroke is under 300 mm, side-load stress is minimal, though external guides are recommended for heavy lateral loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-40S FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push thrust and 1402 N of pull thrust. It can deliver up to 318 kgf at its maximum 1.0 MPa pressure rating.
The rear external adjuster allows you to shorten the effective stroke by up to 40 mm, creating a usable travel range of 130 to 170 mm. The adjuster acts as a mechanical stop for end-position tuning and does not function as a lock to hold the load without live air.
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