Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 325mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke325 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75
The AirTAC SAIJ200X325-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. It features a 325mm nominal stroke that can be dialed back by up to 75mm, providing a usable travel window of 250-325mm for precise end-position tuning during commissioning. This model utilizes a SUS420J2 stainless steel rod for enhanced durability and corrosion resistance.
Unlike fixed-stroke actuators, this adjustable variant allows you to fine-tune the retract position on the fly without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and with a 325mm stroke on a 200mm bore, the robust 40mm rod and M36x2 thread help manage substantial side loads, though an external guide is still recommended for unsupported lengths.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 325 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×325 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX325-75 Is Used
Heavy Press Tuning
Dial in the exact 250-325mm end-stop position for high-tonnage pressing operations without machining new hard stops.
Product Changeover
Quickly adjust the retract depth on a 200mm bore line when switching between product sizes requiring different travel distances.
Large Material Handling
Move heavy workpieces using up to 15708N of force while relying on the 40mm rod to maintain structural integrity over long strokes.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX325-75 the Right Cylinder?
Choose this 200mm bore actuator when your application requires extreme force, offering 15708N push and 15080N pull at 0.5 MPa. If your force requirements are lower, stepping down to a 160mm bore yields 10053N of push force, which may simplify mounting and reduce air consumption. The 75mm adjustment range is ideal for product-size changeovers on a line, allowing variable end-stops without mechanical rework.
Because this is a 325mm stroke, ensure adequate external guiding to prevent excessive side-loading on the rod. The rear adjuster acts strictly as a travel stop for deceleration and positioning, not a lock; the cylinder will not hold its load without live air. For load-holding requirements, consider an AirTAC SAIL or BSAI cylinder. This model uses PT tapered ports and supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ200 Adjustable Cylinder SAIJ200AX325-75 FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. It can achieve a maximum push force of 28274N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 75mm from the 325mm nominal length, creating a 250-325mm travel window. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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