Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-30 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 SAIJ63AX170-30
The AirTAC SAIJ63X170-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 140-170 mm usable travel window, allowing you to dial back the 170 mm nominal stroke by up to 30 mm during commissioning. Equipped with a 20 mm piston rod and a PT G3/8 port, it generates 1559 N of pull force at 0.5 MPa, fitting perfectly into medium-force pneumatic setups.
This unit uses an SUS420J2 stainless steel rod (option A) for enhanced durability against moisture compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE electronic switches. It offers variable air cushions at both ends to manage impact, but the rear screw acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-30 |
|---|---|
| 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 SAIJ63AX170-30
| 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 SAIJ63AX170-30 Is Used
Machine Setup Tuning
Dial in the exact 140-170 mm end position during commissioning to perfect a pressing or clamping operation without external stops.
Product Changeover
Quickly adjust the travel window on a packaging line when switching to a different product size, minimizing downtime.
Variable End Stops
Use the 30 mm trim range to set precise mechanical limits for testing or assembly fixtures that require flexible positioning.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX170-30 the Right Cylinder?
Choose this 63 mm bore when your application requires more force than a 50 mm cylinder (which provides 825 N pull at 0.5 MPa) but does not need the bulk of an 80 mm unit (2268 N pull). The 30 mm adjustment range is ideal for product changeovers on a line, letting you set a new mechanical end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. To match this ISO 15552 footprint exactly, specify the 63 mm bore, 170 mm stroke, 30 mm adjustment, PT G3/8 port, and your required mounting from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or 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 SAIJ63AX170-30 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
The rear adjuster screw lets you mechanically shorten the effective stroke from the 170 mm nominal length down to 140 mm. This stopper only sets the travel end and deceleration; it does not lock the load without live air.
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