Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 210mm 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
- Stroke210 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S
The AirTAC SAIJ63X210-50-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a usable travel window of 160 to 210 mm, allowing you to dial back the 210 mm nominal stroke by up to 50 mm during commissioning. Delivering 1559 N of push force at 0.5 MPa, it is built with an SUS420J2 stainless steel rod and a magnet for position sensing.
This model uses PT tapered port threads (G3/8) and supports speeds of 30-800 mm/s. The rear adjuster acts purely as a travel stop for end-position tuning; it does not lock the load. For load-holding without live air pressure, consider the SAIL or BSAI series instead. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 210 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 SAIJ63AX210-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×210 | 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 SAIJ63AX210-50S Is Used
Product Changeover
Dial in the 160-210 mm travel window on the fly to accommodate different package lengths without changing the cylinder.
End-Position Tuning
Use the 50 mm rear stopper to fine-tune the exact retract position during machine commissioning.
Variable End Stops
Set precise mechanical limits for assembly presses requiring 1559 N of push force at 0.5 MPa.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX210-50S the Right Cylinder?
Choose this 63 mm bore when you need 1559 N of thrust at 0.5 MPa, or step down to a 50 mm bore for 982 N if the load is lighter. The 50 mm adjustment range is ideal for machines that undergo frequent product-size changeovers, letting you fine-tune the retract end-stop without swapping cylinders or adding external stops. Because it includes a magnet (-S), it works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors.
When replacing an ISO 15552 cylinder, match the 63 mm bore, 210 mm stroke, 50 mm adjuster, PT G3/8 ports, and the reduced SAIJ mounting set. The 20 mm rod and M16x1.5 thread handle standard side loads, but for this 210 mm stroke, always verify guiding if the load is heavy or off-center.
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 SAIJ63AX210-50S FAQ
The rear adjuster lets you shorten the 210 mm nominal stroke by up to 50 mm, creating a 160-210 mm travel window. It acts as a mechanical stop to set the end position and does not lock the load without live air.
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. The maximum thrust is 318 kgf at 1.0 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 SAIJ63AX210-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.