Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50
The AirTAC SAIJ100X700-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This yields a precise 650-700 mm usable stroke window, enabling exact end-position tuning at commissioning without swapping the barrel or adding external stops. It delivers a robust 3927 N push force at 0.5 MPa and 7068 N at 0.9 MPa.
This SKU is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and features a PT tapered port thread. The 25 mm rod and M20x1.5 thread provide high rigidity, though with a 700 mm stroke, an external guide is recommended to manage side loads. The rear adjuster acts purely as a mechanical stop for deceleration alongside the air cushions; it does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100BX700-50 Is Used
Machine Setup & Changeover
Fine-tune the 650-700 mm travel window during product line changeovers to accommodate different part sizes without replacing the actuator.
Variable End-Stop Positioning
Dial in the exact retract position on a 700 mm stroke conveyor sorting gate, using the 50 mm rear adjustment screw to perfect the resting state.
Heavy-Duty Forming Press
Leverage the 7068 N push force at 0.9 MPa for pressing operations while trimming the stroke back 50 mm to accommodate tooling height differences.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX700-50 the Right Cylinder?
Select this 100 mm bore when an 80 mm bore (2513 N push at 0.5 MPa) is insufficient, but a 125 mm bore (6136 N at 0.5 MPa) is excessive overkill. The 50 mm adjustment range is ideal for product changeover on a line, letting you dial in variable end-stops on the fly instead of machining new hard stops. For load-holding without continuous air pressure, this cylinder is not suitable; you would need a SAIL (air-released lock) or BSAI (clamp-lock) variant instead.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints. It uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because it lacks a magnet, it cannot use AirTAC CMSE reed or DMSE electronic sensors without modification.
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 SAIJ100 Adjustable Cylinder SAIJ100BX700-50 FAQ
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 700 mm nominal stroke by up to 50 mm, creating a 650-700 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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