Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50
The AirTAC SAIJ80X900-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 2513N of push force at 0.5MPa (4523N at 0.9MPa) and provides a usable travel window of 850-900mm, letting you fine-tune the retract end-position by up to 50mm without external stops. This 80mm bore variant uses a PT G3/8 port and a 25mm SUS304 stainless steel rod.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the 900mm stroke is long and unsupported, an external guide is recommended to prevent excessive side-loading on the rod. The rear adjuster acts purely as a travel stop for deceleration and positioning, not a lock, so the cylinder will not hold its load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX900-50 Is Used
Long-Stroke Machining
Dial in the exact 850-900mm retract position for multi-stage machining operations without remounting the cylinder.
Product Size Changeover
Quickly adjust the end-stop by up to 50mm to accommodate varying package lengths on a packaging line.
Assembly Line Setup
Fine-tune the stroke end-position during initial commissioning to prevent impact damage on long-travel actuators.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50 the Right Cylinder?
Choose this 80mm bore model when an application requires substantial force (2513N push at 0.5MPa) and precise variable end-stops over a long 850-900mm travel window. If your setup needs less force, stepping down to a 63mm bore yields 1559N; if you need more, a 100mm bore provides 3927N. The rear screw allows commissioning adjustments or product changeovers without swapping the cylinder, unlike a fixed-stroke SAI model.
For ISO 15552 drop-in replacement, match the 80mm bore, 900mm stroke, 50mm adjustment, PT G3/8 port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. This configuration uses a SUS304 rod and lacks a magnet. If true load-holding without live air is required, use an external rod lock or pilot-operated check valve, or select an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80 Adjustable Cylinder SAIJ80BX900-50 FAQ
At 0.5MPa it provides 2513N of push force and 2268N of pull force. At 0.9MPa, the push force increases to 4523N.
The rear adjuster screw acts as a stopper that lets you shorten the effective travel from the 900mm nominal stroke down to 850mm, creating a variable 850-900mm setup window without changing the cylinder.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.