
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX225-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 225mm 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.
The AirTAC SAIJ63X225-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 215 to 225 mm. Delivering 1559 N of push force and 1402 N of pull force at 0.5 MPa, it handles robust actuation tasks. The extruded aluminum barrel includes sensor grooves on both sides, and this specific configuration ships with a SUS420J2 stainless steel rod (code A) for superior corrosion resistance.
Equipped with a magnet for position sensing, it supports AirTAC CMSE reed switches and DMSE electronic sensors. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position during commissioning without adding external stops. It is not a locking device; for load-holding without live air pressure, consider the SAIL or BSAI series.
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX225-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 225 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.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×225 | 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.
Dial in the exact retract position within the 215-225 mm window during initial setup without installing external physical stops.
Quickly adapt the stroke end-point on a packaging line when switching between product sizes or formats.
Use the rear mechanical adjuster to set a hard, repeatable end-position limit for high-accuracy operations.
Choose this 63 mm bore when you need more thrust than a 50 mm cylinder (982 N push at 0.5 MPa) but less bulk than an 80 mm unit (2513 N push). The 10 mm adjustable range is ideal for precision machine setup and product changeovers, allowing you to dial in the exact end-of-stroke position without swapping the cylinder. It features a PT tapered port (G3/8) and a 20 mm rod with an M16x1.5 thread, which handles side loads well, though any stroke at or above 300 mm requires an external guide. Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. For dimensionally interchangeable ISO 15552 replacements, match the 63 mm bore, 225 mm stroke, 10 mm adjustment, PT port, and -S magnet.
Quick checklist
At 0.5 MPa operating pressure, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. It operates at speeds between 30 and 800 mm/s.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from 225 mm down to 215 mm. It sets the end position but does not lock the load without live air pressure.
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