Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S
The AirTAC SAIJ100X800-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 3927N of push force at 0.5 MPa and provides a usable travel window of 725-800mm, letting you trim the 800mm nominal stroke by up to 75mm. The carbon steel piston rod has an M20x1.5 thread, and the barrel extrusion includes sensor grooves on both sides for flexible switch mounting.
This model includes a magnet (-S) for position sensing with AirTAC CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts purely as a travel stop for end-position tuning and relies on the integrated air cushion for deceleration; it does not lock the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 SAIJ100X800-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×800 | 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 SAIJ100X800-75S Is Used
Product Size Changeovers
Fine-tune the 725-800mm travel window during line changeovers to accommodate different product lengths without physically swapping the actuator.
Machine Commissioning
Dial in the exact end position during setup using the rear stopper, eliminating the need for custom spacer rings on the 800mm stroke.
Variable End Stops
Adjust the retract position on the fly for automated processes that require slight positional shifts between different workpieces.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X800-75S the Right Cylinder?
Choose this 100mm bore when an 80mm bore (2268N pull at 0.5MPa) is insufficient, but a 125mm bore (6136N push) would be excessive. An adjustable stroke is ideal for machine changeovers where the exact end position needs fine-tuning without adding external stops or swapping a fixed-stroke SAI cylinder. For an ISO 15552 replacement match, specify the 100mm bore, 800mm stroke, 75mm adjustment, PT tapered G1/2 port, and the -S magnet option.
Because the 800mm stroke is long, an external guide is strongly recommended to prevent excessive side loading on the M20x1.5 rod. Remember that the rear adjuster is a stop, not a brake; if you need true load-holding without live air, select the SAIL air-released lock or BSAI clamp-lock 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 SAIJ100 Adjustable Cylinder SAIJ100X800-75S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. It can reach up to 7068N push force at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the 800mm nominal stroke down to 725mm. This creates a 75mm tuning window for precise end-position setup without changing the cylinder itself.
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