Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 110mm 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
- Stroke110 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20
The AirTAC SAIJ63X110-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 1559 N of push force at 0.5 MPa and uses a PT tapered G3/8 port. The built-in adjuster allows you to trim the effective travel, creating a 90-110 mm usable window from the 110 mm nominal stroke. This is ideal for fine-tuning end positions at commissioning without swapping the cylinder.
Equipped with an SUS420J2 stainless steel rod (option A), it handles side loads better than standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE or DMSE switches. The mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear adjuster acts as a travel stop and works with the variable air cushions to decelerate the load, but it does not hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 110 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 SAIJ63AX110-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×110 | 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 SAIJ63AX110-20 Is Used
Machine Setup Tuning
Dial in the exact 90-110 mm travel window during commissioning to perfectly seat parts without adding external stopper blocks.
Product Changeover
Quickly adjust the retract end-position by up to 20 mm when switching between slightly different product sizes on the same line.
Deceleration Control
Pair the rear mechanical stop with the 36 mm variable air cushion to reliably absorb kinetic energy at the end of stroke.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX110-20 the Right Cylinder?
Choose this 63 mm bore when the 50 mm bore (982 N push at 0.5 MPa) is too weak or the 80 mm bore (2513 N push at 0.5 MPa) provides excessive force. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops for product changeovers or precise machine setup. For load-holding without continuous air pressure, use a related type like the SAIL or BSAI clamp-lock cylinder, as the SAIJ rear adjuster is a stop, not a lock. To replace an ISO 15552 cylinder, match the 63 mm bore, 110 mm stroke, 20 mm adjustment, PT G3/8 port, and the desired mounting and magnet options.
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 SAIJ63AX110-20 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 the maximum 1.0 MPa pressure, it delivers up to 318 kgf.
The rear adjuster screw lets you shorten the nominal 110 mm stroke by up to 20 mm, creating a 90-110 mm usable travel window. It acts as a mechanical stop to fine-tune the end position and does not lock the load without live air.
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