Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100
The AirTAC SAIJ63X250-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 150-250 mm usable travel window by allowing you to trim up to 100 mm from the 250 mm nominal stroke. This bore size generates 1559 N of push force and 1402 N of pull force at 0.5 MPa, fitting medium-duty automation tasks.
The piston rod uses SUS420J2 stainless steel (code A) for improved corrosion resistance, and the PT tapered port threads match standard pneumatic plumbing. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE reed or DMSE solid-state switches if a magnet is later required. Adjustable air cushions at both ends absorb kinetic energy, operating at speeds of 30-800 mm/s.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 SAIJ63AX250-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 SAIJ63AX250-100 Is Used
Machine Changeover
Dial in the retract end-position from 150 to 250 mm to accommodate different product sizes on the same line without changing the cylinder hardware.
End-Stop Calibration
Fine-tune the final resting position during setup to absorb mechanical tolerances and achieve precise placement without external stop blocks.
Fixture Positioning
Adjust the clamping travel window on the fly for varying workpiece thicknesses, using the rear screw to set the exact retract distance.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX250-100 the Right Cylinder?
Choose this adjustable-stroke model when you need precise end-position tuning during commissioning or frequent product changeovers without swapping cylinders or adding external stops. If your application requires less force, stepping down to a 50 mm bore yields 982 N of push force at 0.5 MPa; for heavier loads, an 80 mm bore provides 2513 N.
The rear adjuster acts solely as a travel stop to set the retract position and does not hold the load without live air pressure. For fail-safe load holding, consider the SAIL or BSAI series. This SAIJ63X250-100 is dimensionally interchangeable per ISO 15552, featuring a 63 mm bore, 250 mm stroke, 100 mm adjustment, PT G3/8 port, and mounting options limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ63AX250-100 FAQ
At 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 318 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 100 mm. For a 250 mm nominal stroke, this creates a 150-250 mm usable travel window, allowing you to set the exact retract end-position during commissioning.
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 SAIJ63AX250-100
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.