Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 325mm 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
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30
The AirTAC SAIJ63X325-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 325 mm nominal stroke that can be dialed back by up to 30 mm, yielding a precise 295 to 325 mm usable travel window for fine end-position tuning during commissioning. Delivering 1559 N of push force at 0.5 MPa, it handles robust actuation tasks while utilizing a SUS420J2 stainless steel piston rod for enhanced durability against wear and side loads.
This model features PT tapered G3/8 ports and variable air cushions at both ends to manage deceleration. The external rear adjuster acts purely as a mechanical stop to set the travel limit without needing external stops, but it does not lock or hold the load without live air pressure. For load-holding requirements, an external rod lock or related AirTAC series like SAIL or BSAI should be used.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 325 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 SAIJ63AX325-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×325 | 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 SAIJ63AX325-30 Is Used
Machine Changeover
Dial in the 295-325 mm travel window during product size changes to set new retract endpoints without swapping the physical cylinder.
Assembly Positioning
Fine-tune the end-of-stroke stop during commissioning to guarantee precise 1559 N pressing or placement without adding external stopper blocks.
Variable Diverting
Adjust the retract distance on the fly to accommodate different package sizes on a sorting line, using the rear screw to set the exact travel limit.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX325-30 the Right Cylinder?
Select this 63 mm bore cylinder when your application requires 1559 N push force at 0.5 MPa and variable end-stops for product changeovers, avoiding the need to physically swap a fixed-stroke SAI cylinder. If your force requirements are lower, stepping down to a 50 mm bore yields 982 N push force, while stepping up to an 80 mm bore provides 2513 N. When replacing an ISO 15552 cylinder, match the 325 mm stroke, 30 mm adjustment, PT G3/8 port, and mounting interface. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because this unit features a 325 mm stroke, the unsupported piston rod length is substantial. Despite the rigidity of the 20 mm diameter rod and M16x1.5 thread, long unsupported strokes still require an external guide to prevent excessive side-loading and premature seal wear. The cylinder operates efficiently at speeds between 30 and 800 mm/s.
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 SAIJ63AX325-30 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, creating a 295-325 mm usable travel window. It acts as a mechanical stop to fine-tune the retract end position without swapping cylinders, though it does not hold the load without live air pressure.
At 0.5 MPa operating pressure, this 63 mm bore double-acting cylinder provides 1559 N of push force and 1402 N of pull force. It can deliver up to 2182 N of push force at 0.7 MPa.
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 SAIJ63AX325-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.