Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 250mm 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
- Stroke250 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S
The AirTAC SAIJ200X250-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers massive thrust, pushing 15708N and pulling 15080N at 0.5MPa. The built-in rear stopper provides a usable travel window of 220-250mm, allowing you to dial back the 250mm nominal stroke by up to 30mm during commissioning without swapping hardware.
This specific SKU features a SUS420J2 stainless steel rod (code A) for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) is fully compatible with AirTAC CMSE reed and DMSE solid-state switches. Fluid ports are PT tapered G3/4, and the variable air cushions at both ends decelerate the heavy 40mm rod smoothly.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 250 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 SAIJ200AX250-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×250 | 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 SAIJ200AX250-30S Is Used
Heavy Press Tonnage Setup
Fine-tune the exact end-of-stroke pressing distance on heavy machinery without disassembling the cylinder or adding external mechanical stops.
Product Line Changeover
Quickly adjust the 220-250mm travel window to accommodate different product sizes on a high-force assembly line during format changes.
Large Fixture Alignment
Dial in the exact clamping position of large pneumatic fixtures, leveraging the 15708N push force to secure heavy workpieces reliably.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX250-30S the Right Cylinder?
Choose this 200mm bore cylinder when your application requires extreme force (up to 3204kgf at 1.0MPa) and precise end-position tuning. If you need slightly less force, stepping down to a 160mm bore yields 10053N push at 0.5MPa. The 30mm adjustment range is perfect for product changeovers on a line, letting you set variable end stops on the fly. Remember that the rear adjuster is a travel stop, not a lock; this plain SAIJ will not hold its load without live air. For true fail-safe load holding, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 200mm bore, 250mm stroke, 30mm adjustment, PT G3/4 ports, and SUS420J2 rod. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is 250mm, ensure proper external guiding to prevent excessive side loads on the large M36x2 rod thread.
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 SAIJ200AX250-30S FAQ
At 0.5MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At its maximum rated pressure of 1.0MPa, it can deliver up to 3204kgf.
The rear adjuster acts as a mechanical stop that allows you to shorten the 250mm nominal stroke by up to 30mm, creating a usable travel window of 220-250mm. It only sets the end position and does not lock the load without live air pressure.
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