Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 700mm 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
- Stroke700 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 SAIJ50BX700-30S
The AirTAC SAIJ50X700-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 700 mm stroke back by up to 30 mm. This creates a precise 670-700 mm usable travel window, enabling exact end-position tuning at commissioning without swapping out the cylinder or adding external stops. It delivers a robust 982 N push force at 0.5 MPa, making it well-suited for medium-duty handling tasks.
This variant is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the rear adjuster functions purely as a travel stop—it does not hold the load without live air pressure. For applications requiring positive load-holding on loss of pressure, consider the SAIL or BSAI series instead.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 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 SAIJ50BX700-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SAIJ50BX700-30S Is Used
Product Changeover Tuning
Dial in the 670-700 mm end-stop during production line changeovers to accommodate different package lengths without physically replacing the actuator.
Long-Stroke Assembly Press
Utilize the 982 N thrust to seat components over a long travel distance, using the rear screw to fine-tune the final clamping position precisely.
Variable Position Diverter
Adjust the retract stroke by up to 30 mm to reposition a diverter gate on a conveyor system as product dimensions shift between runs.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-30S the Right Cylinder?
Choose this 50 mm bore cylinder when your application requires a 982 N push force at 0.5 MPa, stepping up from a 40 mm bore that provides 628 N, or stepping down from a 63 mm bore delivering 1559 N if a smaller footprint is needed. The adjustable 670-700 mm stroke is ideal for machine changeovers where the exact end-stop varies slightly by product size, replacing the need for a fixed-stroke SAI cylinder when setup flexibility is paramount. If you need to hold a load unpowered, use an external rod lock or pilot-operated check valve, as the SAIJ adjuster only sets the travel end.
Because the stroke is 700 mm, the 20 mm rod diameter and M16x1.5 rod thread will experience amplified side loads if the tooling is unsupported; an external guide rail is strongly recommended to prevent binding. This SAIJ configuration uses PT tapered ports and supports the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It is dimensionally interchangeable per ISO 15552 standards.
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 SAIJ50BX700-30S FAQ
At a 0.5 MPa operating pressure, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. At the maximum 1.0 MPa pressure, it provides up to 200 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from 700 mm down to 670 mm. It creates a 670-700 mm usable window for fine-tuning the retract end position at commissioning without external stops.
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