Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 150mm 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
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S
The AirTAC SAIJ63X150-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 110-150 mm usable travel window by allowing up to 40 mm of stroke reduction from the 150 mm nominal length. In this specific configuration, the piston rod uses SUS420J2 stainless steel (code A), and the fluid ports feature PT tapered threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it directly supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position detection.
Delivering 1559 N of pull force at 0.5 MPa and up to 2805 N at 0.9 MPa, it fits a robust mid-range force class. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning or product changeover without adding external stops. It is not a locking device, so load-holding without live air requires a SAIL or BSAI variant. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 150 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 SAIJ63AX150-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×150 | 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 SAIJ63AX150-40S Is Used
Machine Setup Commissioning
Dial in the exact 110-150 mm retract position during initial machine commissioning without swapping cylinders or fabricating external stopper blocks.
Product Size Changeover
Quickly adjust the end-of-stroke position on packaging lines when handling different carton or product sizes, using the 40 mm trim range.
Precision End-Stop Tuning
Fine-tune the final retract position to achieve precise mechanical alignment in assembly stations, relying on the rear stopper rather than external fixtures.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX150-40S the Right Cylinder?
Select this 63 mm bore model when your application requires 1559 N pull force at 0.5 MPa and demands variable end-stop positioning. If you need less force, the 50 mm bore offers 825 N pull at 0.5 MPa; for heavier loads, the 80 mm bore provides 2268 N. Choose this adjustable-stroke SAIJ over a fixed SAI when you need to dial in the exact retract distance on the fly, utilizing the 110-150 mm travel window to accommodate product-size changes on a line.
To replace an ISO 15552 cylinder, match the 63 mm bore, 150 mm stroke, 40 mm adjustment range, PT G3/8 port, and the -S magnet. The 20 mm rod diameter and M16x1.5 thread handle moderate side loads well, but for this 150 mm stroke, always use an external guide rail if the load is heavy or off-center. The cylinder operates at 30-800 mm/s and uses variable air cushions at both ends to decelerate the piston.
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 SAIJ63AX150-40S FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of pull force and 2182 N at 0.7 MPa. The maximum push force is 2805 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 40 mm from the 150 mm nominal length, creating a 110-150 mm usable travel window. The adjuster acts as a mechanical stop and does not lock the load without live air pressure.
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