Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 450mm 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
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30
The AirTAC SAIJ200X450-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 420-450 mm, allowing you to dial back the 450 mm nominal stroke by up to 30 mm during commissioning. This size delivers massive thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed and DMSE electronic switches.
Equipped with a SUS420J2 stainless steel rod (material code A) and a robust M36x2 rod thread, this unit handles heavy loads with improved corrosion resistance. It uses PT tapered G3/4 ports and achieves a standard speed range of 30-500 mm/s. The rear adjuster acts purely as a travel stop to fine-tune the end position without adding external stops; it does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 450 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 SAIJ200AX450-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×450 | 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 SAIJ200AX450-30 Is Used
Heavy Press Tuning
Dial in the exact 420-450 mm end-stop for massive press operations, ensuring precise contact without repositioning the entire cylinder.
Product Changeover
Quickly adjust the retract stop on packaging lines handling varying large product sizes, saving setup time by turning the rear screw.
Large Assembly Jigs
Fine-tune the stroke window on heavy automated jigs where a fixed 450 mm stroke would require remachining external hard stops.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX450-30 the Right Cylinder?
Choose this adjustable-stroke model when a fixed 450 mm SAI cylinder cannot accommodate product size changes or exact end-position tuning. If your application requires less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, which may better suit lighter assemblies. For load-holding without continuous air pressure, this cylinder is not a lock—consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 200 mm bore, 450 mm stroke, 30 mm adjustment, PT G3/4 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because 450 mm exceeds typical short strokes, the heavy M36x2 rod thread carries substantial side loads, but an external guide is still recommended to prevent rod bending over this long travel distance.
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 SAIJ200AX450-30 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can deliver up to 3204 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 450 mm nominal stroke by up to 30 mm, creating a 420-450 mm travel window. It functions as a mechanical stop for end-position tuning and is not a lock.
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