Airtac SAIJ50 Adjustable Cylinder SAIJ50BX950-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX950-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 950mm 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
- Stroke950 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 SAIJ50BX950-100S
The AirTAC SAIJ50X950-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 100 mm, creating an 850-950 mm usable window without adding external stops. It delivers 982 N of push force at 0.5 MPa and integrates a magnet for AirTAC CMSE reed and DMSE electronic sensors. The barrel is extruded aluminum, not a tie-rod design, ensuring strict dimensional interchangeability with ISO 15552 cylinders.
This specific SKU is built with a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threads. The 20 mm rod diameter and M16x1.5 rod thread provide robust load handling, though the 950 mm length means an external guide is strongly recommended to prevent side-load damage.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX950-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX950-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 950 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 SAIJ50BX950-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×950 | 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 SAIJ50BX950-100S Is Used
Machine Changeover
Fine-tune the 850-950 mm retract position on the fly when switching product sizes on a packaging line.
Long-Stroke Forming
Apply 982 N of push force at 0.5 MPa for assembly tasks while dialing in the exact end-stop.
Corrosive Setup
Leverage the SUS304 stainless steel rod for position tuning in washdown or chemical environments.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX950-100S the Right Cylinder?
Choose this 50 mm bore when a 40 mm bore (628 N at 0.5 MPa) is too weak or a 63 mm bore (1559 N at 0.5 MPa) is overkill. The adjustable stroke is ideal for machine changeovers, letting you fine-tune the retract end-position during commissioning rather than swapping the whole cylinder. The rear adjuster acts only as a travel stop and variable air cushion; it does not hold the load without live air. For load-holding without pressure, use an external rod lock or pilot-operated check valve.
When replacing an ISO 15552 cylinder, match the 50 mm bore, 950 mm stroke, 100 mm adjustment range, PT port, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is 950 mm, you must use an external guide to manage side loads.
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 SAIJ50BX950-100S FAQ
At 0.5 MPa it provides 982 N push and 825 N pull force. At 0.7 MPa the push force is 1374 N, and the maximum push force is 1767 N at 0.9 MPa.
The rear adjuster screw lets you shorten the 950 mm nominal stroke by up to 100 mm, creating an 850-950 mm travel window. It functions as a stop and cushion, not a load-holding lock.
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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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