Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 180mm 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
- Stroke180 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 SAIJ50BX180-30S
The AirTAC SAIJ50X180-30-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 982N push force at 0.5 MPa and allows you to dial back the nominal 180mm stroke by up to 30mm, creating a precise 150-180mm usable travel window for product changeovers. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting.
This configuration ships with a SUS304 stainless steel rod (option B) for superior corrosion resistance and a built-in magnet (-S) compatible with AirTAC CMSE reed and DMSE electronic sensors. The PT tapered ports and 30mm variable air cushions at both ends ensure controlled end-of-stroke deceleration. The rear adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 180 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 SAIJ50BX180-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×180 | 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 SAIJ50BX180-30S Is Used
Product Changeover
Dial in the exact 150-180mm end position during line changeovers without swapping cylinders or adding external mechanical stops.
Fixture Alignment
Fine-tune the retract distance on machining fixtures to accommodate varying part sizes and ensure precise clamping.
Divertor Adjustment
Modify the stroke length on conveyor divertors to handle different package dimensions on the fly.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S the Right Cylinder?
Choose this 50mm bore cylinder when an application requires 982N of push force at 0.5 MPa, sitting neatly between the 40mm bore (628N) and the 63mm bore (1559N). An adjustable stroke is selected over a fixed SAI model when you need variable end-stops for machine setup or product-size changes without bolting on external stops or swapping the cylinder. To replace an ISO 15552 cylinder, match the 50mm bore, 180mm stroke, 30mm adjustment, PT ports, and the -S magnet.
For any stroke length of 180mm, the 20mm rod diameter and M16x1.5 rod thread handle moderate side loads, but long unsupported travel still requires an external guide to prevent binding. If the machine requires true load-holding without live air pressure, use a SAIL air-released lock or BSAI clamp-lock cylinder instead of relying on the rear stopper or air cushions.
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 SAIJ50BX180-30S FAQ
The rear adjusting screw lets you shorten the effective stroke by up to 30mm, providing a 150-180mm usable travel window. It acts as a mechanical stop to fine-tune the retract end position during commissioning without replacing the cylinder.
At 0.5 MPa it provides 982N of push force and 825N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 1767N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ50 Adjustable Cylinder SAIJ50BX180-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.