Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 950mm 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
- Stroke950 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30
The AirTAC SAIJ200X950-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 920-950 mm usable travel window. As the largest standard bore, it delivers 15708 N of push force and 15080 N of pull force at 0.5 MPa, making it suited to heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches, though this specific SKU is supplied without a magnet.
This variant features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and utilizes PT tapered port threads for its G3/8 connections. The rear adjustment screw acts purely as a mechanical stop to fine-tune the retract end position during commissioning; it does not lock or hold the load without continuous air pressure. For applications requiring true load-holding without live pressure, an external rod lock or the AirTAC SAIL pneumatic lock series is required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 950 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 SAIJ200AX950-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×950 | 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 SAIJ200AX950-30 Is Used
Heavy Stamping Alignment
Dial in the exact bottom dead center of a 950 mm stroke stamping press during setup, using the 30 mm rear stopper to compensate for tooling wear without replacing the cylinder.
Pallet Transfer Stops
Adjust the retract end-position of a heavy pallet conveyor diverter on the fly, shifting the stop distance by up to 30 mm to accommodate different pallet widths.
Large Assembly Presses
Fine-tune the end-of-stroke position on heavy assembly machinery, leveraging the 200 mm bore's 15708 N of thrust at 0.5 MPa to seat large components accurately.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-30 the Right Cylinder?
Choose this 200 mm bore adjustable-stroke cylinder when a machine requires heavy thrust up to 15708 N at 0.5 MPa (or 21991 N at 0.7 MPa) alongside precise end-position tuning without swapping physical components. If your application needs less force, stepping down to the 160 mm bore yields 10053 N of push force at 0.5 MPa, which might better suit mid-range actuation. The SAIJ200X950-30 is specified with PT tapered G3/8 ports, a SUS420J2 stainless steel rod, and a 30 mm adjustment range. Because the 950 mm stroke is substantial and exceeds 300 mm, an external guide rail is strongly recommended to prevent excessive side-load wear on the rod and front cap. It supports the standard SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ200AX950-30 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. The maximum operating speed is 30-500 mm/s, which is lower than smaller bores due to the large internal volume and mass.
The rear adjuster is a mechanical stopper that allows you to shorten the nominal 950 mm stroke by up to 30 mm, creating a usable travel window of 920-950 mm. It is designed for fine-tuning the end position at commissioning and does not lock the load without live air pressure.
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