Airtac SAIJ50 Adjustable Cylinder SAIJ50BX85-10S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX85-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 85mm 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
- Stroke85 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 SAIJ50BX85-10S
The AirTAC SAIJ50X85-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel. With a nominal 85mm stroke dialed back by up to 10mm, you get a precise 75-85mm usable travel window for commissioning without swapping hardware. It delivers 982N of push force and 825N of pull force at 0.5MPa, fitting medium-duty tasks perfectly.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. It works seamlessly with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the PT tapered port threads ensure a tight, reliable pneumatic connection.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX85-10S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX85-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 85 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 SAIJ50BX85-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×85 | 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 SAIJ50BX85-10S Is Used
Variable End-Stop Tuning
Dial in the exact 75-85mm travel window during machine commissioning to accommodate varying product sizes without replacing the cylinder.
Product Changeover
Quickly adjust the retract end-position by up to 10mm on packaging lines when switching between different package dimensions.
Corrosive Assembly Lines
Leverage the SUS304 stainless steel rod and 982N push force for reliable actuation in washdown or mildly corrosive manufacturing environments.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX85-10S the Right Cylinder?
Choose this 50mm bore when 40mm (628N push at 0.5MPa) is too weak or 63mm (1559N) is oversized. The 10mm adjustment range is perfect for variable end-stops or product changeovers, avoiding the need for fixed-stroke SAI cylinders. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
For position feedback, the integrated magnet pairs with CMSE reed or DMSE solid-state switches. Remember that the rear adjuster acts only as a travel stop, not a lock; a plain SAIJ cannot hold loads without live air. For fail-safe load holding, consider SAIL or BSAI cylinders. Since the stroke is under 300mm, side-load risks are minimal, but external guides are still recommended for heavy lateral 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 SAIJ50BX85-10S FAQ
At 0.5MPa, it provides 982N push and 825N pull force. The 85mm nominal stroke combined with the 10mm rear adjuster provides a usable travel window of 75-85mm.
The rear adjuster acts as a mechanical stop to fine-tune the retract stroke; it is not a lock and cannot hold loads without air pressure. The integrated magnet works with AirTAC CMSE reed and DMSE electronic sensors for position feedback.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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