Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 65mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke65 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S
The AirTAC SAIJ50X65-30-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical adjuster that allows you to fine-tune the effective stroke. With a 65 mm nominal stroke and a 30 mm adjustment range, you can dial in the retract end-position anywhere within a 35-65 mm usable travel window without adding external stops. This bore generates 982 N of push force and 825 N of pull force at 0.5 MPa, making it a solid mid-range choice for general automation.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and because this is an -S variant, it includes a magnet ready for AirTAC CMSE reed and DMSE electronic solid-state switches. The rear screw acts purely as a travel stop to set deceleration, not as a lock, so live air is still required to hold the load.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×65 | 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 SAIJ50 Adjustable Cylinder SAIJ50BX65-30S Is Used
Machine Changeover
Dial in the exact retract position within the 35-65 mm window when switching production lines to a new product size.
Component Seating
Fine-tune the end-stop during assembly to gently seat delicate parts without over-stroking and causing damage.
Fixture Positioning
Set precise clamping locations on the fly, using the rear stopper to adapt the stroke to varying workpiece geometries.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX65-30S the Right Cylinder?
Choose this 50 mm bore when a 32 mm bore (offering 402 N push at 0.5 MPa) is too weak, but you want to avoid the larger footprint of a 63 mm cylinder. An adjustable stroke is ideal for machine setups that require variable end-stops during commissioning or product changeovers, rather than relying on a fixed-stroke standard SAI cylinder. To replace an ISO 15552 cylinder, match the 50 mm bore, 65 mm stroke, 30 mm adjustment, PT G1/4 ports, and the -S magnet option. The available mounting set includes 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 SAIJ50 Adjustable Cylinder SAIJ50BX65-30S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
The rear adjuster screw lets you shorten the 65 mm nominal stroke by up to 30 mm, creating a 35-65 mm usable travel window. It acts as a mechanical stop to set the end position and does not lock the load without live air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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