Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 850mm 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
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S
The AirTAC SAIJ100X850-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a substantial 7068N push force at 0.9 MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables position feedback via CMSE reed and DMSE electronic sensors.
This model provides an 820-850mm usable travel window, allowing you to trim up to 30mm off the 850mm nominal stroke. The extruded aluminum barrel includes sensor grooves on both sides, and the carbon steel rod with its M20x1.5 thread handles high side loads. The rear adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 850 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 SAIJ100X850-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×850 | 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 SAIJ100X850-30S Is Used
Product Changeovers
Dial in the exact end position within the 820-850mm window during line changeovers without physically swapping out the pneumatic cylinder.
Heavy Material Handling
Leverage the 7068N push force at 0.9 MPa to move heavy pallets or pusher assemblies, using the rear stop to absorb final impact energy.
Machine Commissioning
Fine-tune the retract stroke during initial setup to synchronize multiple actuators perfectly, avoiding the cost of custom-machined external stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X850-30S the Right Cylinder?
Choose this 100mm bore when 50mm bore cylinders (offering 1767N push at 0.9 MPa) lack the thrust for your application, but a 125mm unit would be excessive. The adjustable 820-850mm travel is perfect for product changeovers, letting you fine-tune the end position at commissioning without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, select a SAIL or BSAI cylinder instead, as this adjuster is not a lock.
When replacing an ISO 15552 cylinder, match the 100mm bore, 850mm stroke, 30mm adjustment, PT tapered port, and -S magnet. Because the 850mm stroke is long, an external guide is recommended to prevent rod bending under heavy offset loads. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ100X850-30S FAQ
At 0.9 MPa operating pressure, this 100mm bore cylinder provides 7068N of push force and 6626N of pull force. At 0.5 MPa, it delivers 3927N push and 3681N pull.
The rear adjuster screw lets you shorten the 850mm nominal stroke by up to 30mm, creating an 820-850mm usable travel window. It acts as a mechanical stop for end-position tuning and is not a lock.
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