Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-50
The AirTAC Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-50 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 SAIJ63AX165-50
The AirTAC SAIJ63X165-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This yields a usable stroke window of 115 to 165 mm, letting you dial in the exact retract position at commissioning without swapping out the barrel or adding external stops. Operating at 0.5 MPa, it delivers 1559 N of pull force and 2182 N of push force, making it well-suited for medium-duty manipulation tasks.
This SKU is configured with a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance over standard carbon steel. Pneumatic connections use a PT tapered G3/8 port, and the extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. The rear adjuster functions strictly as a mechanical stop to set the end-of-travel position; it does not lock or hold the load without live air pressure.
Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-50 Technical Specifications
| Model | Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-50 |
|---|---|
| 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 SAIJ63AX165-50
| 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 SAIJ63AX165-50 Is Used
Product Changeover Lines
Quickly adapt the retract distance by up to 50 mm when switching between product sizes on the same conveyor, eliminating the need for physical cylinder swaps.
Machine Setup Tuning
Fine-tune the end position during initial commissioning to perfectly align a 1559 N pull-force operation without machining external stopper blocks.
Variable End-Stop Positioning
Use the 115 to 165 mm travel window to adjust the retract depth for multi-stage assembly processes within a single ISO 15552 footprint.
Is the Airtac SAIJ63 Adjustable Stroke Air Cylinder SAIJ63AX165-50 the Right Cylinder?
Select this 63 mm bore when your application requires the 1559 N pull force at 0.5 MPa (or 1402 N if dropping down to a 50 mm bore) but demands an adaptable end-stop for product changeovers. The 50 mm adjustment range is ideal for lines running multiple product sizes, replacing the need to physically swap a fixed-stroke SAI cylinder. Because the nominal stroke is 165 mm, side-loading is minimal, but always ensure the load is guided to prevent rod binding.
For an exact ISO 15552 dimensional replacement, match the 63 mm bore, 165 mm stroke, 50 mm adjustment range, PT G3/8 port, and the SUS420J2 stainless steel rod. Mounting options are limited to the Basic, FA, LB, TC, FTC, TCM1, and TCM2 interface sets, omitting the FB, CA, CB, and CR styles. If your setup requires true load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on this adjuster.
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 SAIJ63AX165-50 FAQ
It features a rear external adjusting screw that acts as a mechanical stop, allowing you to shorten the nominal 165 mm stroke by up to 50 mm. This creates a usable travel window of 115 to 165 mm so you can fine-tune the retract position without changing the cylinder.
At a standard operating pressure of 0.5 MPa, this 63 mm bore double-acting cylinder provides 2182 N of push force and 1559 N of pull force. It can reach up to 2805 N push force at its maximum 1.0 MPa pressure.
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 SAIJ63AX165-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.