Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-30S 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 SAIJ100BX800-30S
The AirTAC SAIJ100X800-30-S is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stopper that trims the nominal 800 mm travel down to a precise 770-800 mm window. This built-in adjuster allows you to fine-tune the retract end-position at commissioning without physically swapping the cylinder or adding external stops. It delivers a robust 5497 N push force at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This SKU is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for electronic DMSE or reed CMSE sensors housed in the dual-side extruded barrel grooves. Fluid is filtered air operating at 0.15-1.0 MPa. The rear adjuster acts purely as a travel stop to set the deceleration point alongside the variable air cushions; it is not a locking mechanism and will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-30S |
|---|---|
| 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 SAIJ100BX800-30S
| 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 SAIJ100BX800-30S Is Used
Variable End-Stop Positioning
Dial in the exact retract position within a 770-800 mm window during machine setup to accommodate varying workpiece lengths without external stopper blocks.
Product Line Changeover
Rapidly reconfigure the stroke end-point on automated assembly lines when switching between product sizes, minimizing downtime and mechanical rework.
Heavy-Duty Forming Press
Leverage the 5497 N push force at 0.7 MPa to securely hold materials in place, using the rear adjuster to set the precise travel limit for bending operations.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX800-30S the Right Cylinder?
Choose this 100 mm bore when 80 mm (3518 N at 0.5 MPa) is insufficient but you want to avoid the bulk of a 125 mm body. An adjustable-stroke model is preferred over a fixed SAI when a machine requires iterative end-stop tuning during product changeovers. To replace this cylinder, match the 100 mm bore, 800 mm nominal stroke, 30 mm adjustment, PT tapered port threads, and the -S magnet option. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 800 mm stroke is long, the 25 mm rod and M20x1.5 thread will experience amplified side-loading leverage if the load is unsupported. An external guide is highly recommended to prevent premature seal wear. For applications requiring true load-holding without continuous air pressure, consider the SAIL or BSAI series 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 SAIJ100BX800-30S FAQ
The -30 code indicates the rear adjuster screw can shorten the effective travel by up to 30 mm. This creates a usable 770-800 mm stroke window, allowing you to fine-tune the end position at commissioning without changing the cylinder or adding external stops.
At 0.7 MPa operating pressure, it generates 5497 N of push force and 3681 N of pull force. The maximum force is 801 kgf at 1.0 MPa. The operational speed range is 30-800 mm/s.
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