Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 1000mm 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
- Stroke1000 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 SAIJ50BX1000-75
The AirTAC SAIJ50X1000-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 925-1000 mm usable travel window, letting you dial back the 1000 mm nominal stroke by up to 75 mm during commissioning without adding external stops. Equipped with a SUS304 stainless steel rod, it handles demanding environments while delivering 982 N of push force and 825 N of pull force at 0.5 MPa.
This model uses PT tapered port threads and includes adjustable air cushions at both ends to manage kinetic energy. The extruded aluminum barrel features sensor grooves on both sides for CMSE reed or DMSE electronic switches, though no magnet is installed on this specific unit. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 1000 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 SAIJ50BX1000-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×1000 | 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 SAIJ50BX1000-75 Is Used
Variable End-Stop Tuning
Dial in the precise retract position within the 925-1000 mm window during machine setup without swapping out the entire actuator.
Product Size Changeover
Quickly adapt a packaging line to different carton lengths by adjusting the rear stopper up to 75 mm to accommodate new formats.
Long-Stroke Positioning
Handle extended travel movements where exact end-of-stroke positioning is critical, relying on external guides to manage side loads.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-75 the Right Cylinder?
Choose this 50 mm bore when you need higher thrust than a 40 mm bore (628 N push at 0.5 MPa) but want a lighter frame than the 63 mm bore (1559 N push). The 75 mm adjustment window is ideal for product changeovers on a line where the exact end-position varies between fixtures. Because the rear adjuster acts only as a travel stop and the air cushions manage deceleration, neither will hold a load without live air pressure. For true load-holding without continuous air, select the SAIL or BSAI series instead.
At 1000 mm of stroke, the 20 mm rod is highly susceptible to side-loading and deflection. An external guide rail is strongly recommended to prevent premature seal wear and binding. As a dimensionally interchangeable ISO 15552 cylinder, it matches standard SAI footprint dimensions and uses a G1/4 port.
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 SAIJ50BX1000-75 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it achieves up to 200 kgf.
The rear adjuster acts as a mechanical stop that shortens the effective travel. For this model, it creates a 925-1000 mm usable window, allowing you to fine-tune the end position by up to 75 mm without moving the cylinder mount.
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