Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-40
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-40 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 SAIJ50BX1000-40
The AirTAC SAIJ50X1000-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel to a precise 960-1000 mm window. Equipped with a SUS304 stainless steel rod and PT tapered ports, it delivers 982 N of push force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
Because the adjuster acts purely as a mechanical stop at the retract end, it cannot hold a load without live air pressure; for pilot-operated locking needs, consider the SAIL or BSAI series. This model uses the standard SAIJ mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-40 Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-40 |
|---|---|
| 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 SAIJ50BX1000-40
| 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 SAIJ50BX1000-40 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 960-1000 mm window during commissioning to accommodate slight mechanical variations without adding external stopper blocks.
Product Size Changeover
Quickly adjust the stroke by up to 40 mm on automated lines handling different product lengths, minimizing downtime between production runs.
Long-Travel Conveying
Push or positions parts over a 1000 mm span where the rear adjuster allows operators to fine-tune the resting place of the transferred goods.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX1000-40 the Right Cylinder?
Choose this 50 mm bore when you need more force than the 40 mm class (628 N at 0.5 MPa) but want a smaller footprint than the 63 mm class (1559 N at 0.5 MPa). The adjustable-stroke design is ideal for machine setups requiring variable end-stops or product changeovers without physically swapping the cylinder for a fixed-stroke SAI unit. To match this ISO 15552 cylinder exactly, verify the 1000 mm stroke, 40 mm adjustment range, PT port threads, and required mounting bracket.
With a 1000 mm stroke, the 20 mm diameter rod and M16x1.5 rod thread provide robust support, but an external guide is strongly recommended to prevent excessive side-loading on the long unsupported travel. The variable air cushions at both ends help decelerate the payload smoothly within the 30-800 mm/s speed range.
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 SAIJ50BX1000-40 FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 1374 N.
The rear adjusting screw acts as a mechanical stopper that lets you shorten the nominal 1000 mm stroke by up to 40 mm, creating a usable travel window of 960 to 1000 mm. It only sets the end position and does not lock the load without continuous air pressure.
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Covers non-human-caused product damage.
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