Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-40 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 SAIJ200AX950-40
The AirTAC SAIJ200X950-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a substantial 15708N push force at 0.5MPa and uses a 40mm adjustment range to trim the effective travel, creating a 910-950mm usable window. This allows you to dial in the exact end position during commissioning without swapping out the entire cylinder. The extruded aluminum barrel includes sensor grooves on both sides.
Equipped with a SUS420J2 stainless steel rod and PT tapered G3/4 ports, this unit is built for heavy-duty operation. The rear adjuster acts purely as a mechanical stop to set the retract position and does not lock the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related types like SAIL or BSAI are required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-40 |
|---|---|
| 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 SAIJ200AX950-40
| 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 SAIJ200AX950-40 Is Used
Heavy Press Tuning
Dial in the exact 910-950mm retract position on a large assembly press during commissioning without adding external mechanical stops.
Product Changeover
Quickly adjust the end-stop by up to 40mm on a production line when switching between heavy product sizes or jig heights.
Long-Stroke Guiding
Manage substantial 15708N push forces over a 950mm travel window while relying on an external guide to handle side loads.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX950-40 the Right Cylinder?
Selecting this 200mm bore cylinder is ideal when your application requires up to 3204kgf of maximum thrust and precise variable end-stops. If your force needs are lower, stepping down to a 160mm bore yields 10053N of push force at 0.5MPa. The adjustable stroke is chosen over a fixed SAI cylinder when you need fine-tuning capabilities during machine setup or product changeover. To replace an ISO 15552 cylinder, match the 200mm bore, 950mm stroke, 40mm adjustment, PT G3/4 ports, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set.
Because the 950mm stroke is long and unsupported, the 40mm rod diameter and M36x2 thread still require an external guide to handle side loads. This model operates at a speed range of 30-500mm/s and includes variable air cushions at both ends to decelerate the heavy payload. Without live air, the cushion and adjuster will not hold the load in place.
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 SAIJ200AX950-40 FAQ
At an operating pressure of 0.5MPa, this 200mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At the maximum pressure of 1.0MPa, it delivers up to 3204kgf.
The rear adjuster screw lets you shorten the 950mm nominal stroke by up to 40mm, providing a usable travel window of 910-950mm. This mechanical stop fine-tunes the retract end position but does not lock or hold the load without continuous air pressure.
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