Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-50S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 165mm 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
- Stroke165 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 SAIJ50BX165-50S
The AirTAC SAIJ50X165-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 115 to 165 mm, allowing you to dial back the nominal 165 mm stroke by up to 50 mm during commissioning. It delivers a 982 N push force at 0.5 MPa and 1374 N at 0.7 MPa.
This specific SKU uses a SUS304 stainless steel piston rod for superior corrosion resistance and includes a magnet (-S) for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface is dimensionally interchangeable per ISO 15552.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-50S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 165 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 SAIJ50BX165-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×165 | 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 SAIJ50BX165-50S Is Used
Variable End-Stop Tuning
Dial in the exact 115 to 165 mm travel distance during machine commissioning without swapping hardware.
Product Size Changeover
Quickly adapt the stroke distance on a packaging line when handling different carton or package sizes.
Corrosive Environment Actuation
Leverage the SUS304 stainless steel rod for reliable clamping or pressing in washdown or corrosive settings.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX165-50S the Right Cylinder?
Choose this 50 mm bore when your application requires around 982 N of push force at 0.5 MPa; stepping up to a 63 mm bore raises that output to 1559 N, while dropping to a 40 mm bore lowers it to 628 N. The 50 mm adjustment range is ideal for product-size changeovers on a line, eliminating the need to physically swap cylinders or bolt on external stops.
Remember that the rear adjuster acts purely as a travel stop, not a lock; it cannot hold a load without live air pressure. For true fail-safe load holding, consider the SAIL pneumatic lock or BSAI clamp-lock series. Configuration details include PT tapered ports, a 30-800 mm/s speed range, and the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ50BX165-50S FAQ
At 0.5 MPa it provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
A rear stopper screw lets you shorten the effective travel from 165 mm down to a minimum of 115 mm, giving a 50 mm adjustment window for fine-tuning end positions.
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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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