Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 165mm 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
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10
The AirTAC SAIJ63X165-10 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 1559N push force at 0.5 MPa and uses a PT tapered G3/8 port. The built-in rear stopper allows you to trim the effective travel within a 155-165mm window, giving you precise end-position control without adding external stops.
This unit features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance. It operates at speeds of 30-800 mm/s and includes variable air cushions at both ends to decelerate the load. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 165 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 SAIJ63AX165-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×165 | 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 SAIJ63AX165-10 Is Used
End-Stop Calibration
Dial in the exact 155-165mm retraction point during machine setup to perfectly seat parts without slamming.
Product Changeover
Quickly adjust the stroke by up to 10mm on a packaging line when switching to a slightly different product size.
Machining Clamps
Securely position workpieces with 1559N of push force while fine-tuning the clamping depth on the fly.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-10 the Right Cylinder?
Choose this 63mm bore when a 50mm cylinder (offering 982N push at 0.5 MPa) lacks the necessary thrust, but an 80mm bore (2513N push) would be physically oversized. The 10mm adjustment range is ideal for fine-tuning the retracted position during machine commissioning or product changeover, replacing the need to swap out a fixed-stroke SAI cylinder. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 63mm bore, 165mm nominal stroke, PT port threads, and mounting style. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, but omits FB, CA, CB, and CR. As this is a 165mm stroke, it is relatively short, but always ensure adequate external guiding if the load is heavy or offset.
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 SAIJ63AX165-10 FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 165mm stroke by up to 10mm. This creates a usable travel window of 155-165mm for fine-tuning the end position without replacing the cylinder.
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