Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S
The AirTAC SAIJ63X120-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 90-120 mm from its 120 mm nominal stroke. It delivers a robust 1559 N pull force at 0.5 MPa, making it well-suited for moderate-to-heavy actuation. The integrated magnet supports position sensing via CMSE reed or DMSE electronic switches mounted in the dual-side sensor grooves.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/8 connection. The rear adjuster acts strictly as a mechanical stop to dial in the retract end-position during commissioning without adding external stops. It is not a locking device, so load-holding without live air requires a SAIL or BSAI cylinder.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAIJ63AX120-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SAIJ63AX120-30S Is Used
Machine Changeover
Dial in the 90-120 mm retract position during product size transitions without replacing the cylinder or bolting on external stoppers.
End-Position Tuning
Fine-tune the final retract stop during commissioning to absorb mechanical tolerances and achieve precise placement.
Assembly Actuation
Leverage the 1559 N pull force to drive clamps and lifts on the assembly line, using the rear screw to set the exact resting distance.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S the Right Cylinder?
Choose this 63 mm bore when a 40 mm bore (providing 528 N pull at 0.5 MPa) lacks the necessary force, but an 80 mm bore (2268 N pull) would be excessive. The 30 mm adjustment window is ideal for product changeovers or fine-tuning the end stop on the machine without swapping cylinders. Mounting options include the standard SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. For any load-holding requirements, select a SAIL (air-released lock) or BSAI (clamp-lock) instead, as the adjuster here only decelerates and sets travel.
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 SAIJ63AX120-30S FAQ
At 0.5 MPa, it provides 1559 N of pull force and 1402 N of push force. The operational speed range is 30-800 mm/s.
The rear adjuster screw lets you shorten the 120 mm nominal stroke by up to 30 mm, creating a 90-120 mm usable travel window. It functions as a mechanical stop for end-position tuning, not as a lock.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX120-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.