Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-20
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-20 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 SAIJ50BX1000-20
The AirTAC SAIJ50X1000-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 980-1000 mm usable travel window. Delivering 982 N of push force at 0.5 MPa, it integrates a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model utilizes a PT tapered G1/4 port and variable air cushions at both ends to manage deceleration. The rear adjustment screw acts purely as a travel stop to fine-tune the end position without requiring external stops. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-20 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-20 |
|---|---|
| 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 SAIJ50BX1000-20
| 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 SAIJ50BX1000-20 Is Used
Product Changeover Lines
Dial in the 980-1000 mm travel window during size changeovers without physically replacing the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the exact retract position at commissioning using the rear screw, absorbing mechanical setup tolerances on long-stroke machinery.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or chemical exposure areas where carbon steel rods would fail.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-20 the Right Cylinder?
Choose this 50 mm bore when 40 mm falls short at 628 N, but 63 mm provides excessive force at 1559 N. The 20 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact end-stop during commissioning rather than swapping a fixed SAI cylinder. Because the stroke is 1000 mm, an external guide is recommended to manage side loads on the extended rod.
For ISO 15552 replacement matching, verify the 1000 mm stroke, 20 mm adjustment, PT port, and SUS304 rod material. Note that the rear adjuster and air cushions do not hold the load without live air; for true position holding, consider the SAIL or BSAI series.
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 SAIJ50BX1000-20 FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach a maximum push force of 1767 N at 0.9 MPa.
The rear adjuster acts as a mechanical stop, allowing you to shorten the nominal 1000 mm stroke by up to 20 mm, creating a 980-1000 mm travel window. It only sets the end position and does not lock the load without continuous 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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