Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 650mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke650 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20
The AirTAC SAIJ100X650-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 630 to 650 mm usable travel window, allowing you to dial back the end position by up to 20 mm during commissioning without adding external stops. Built with a carbon steel piston rod, it delivers 5497 N of push force at 0.7 MPa.
This extruded aluminum barrel design includes sensor grooves on both sides for flexible switch mounting. While the rear adjuster sets the travel limit and the variable air cushions decelerate the load, neither acts as a lock; use a SAIL or BSAI cylinder if you need to hold position without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×650 | 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 SAIJ100 Adjustable Cylinder SAIJ100X650-20 Is Used
Long-Stroke Press Feed
Dial in the exact 630 to 650 mm material push distance during setup, ensuring precise indexing without repositioning physical hard stops.
Pallet Transfer Alignment
Fine-tune the retraction end-point on a 650 mm stroke to accommodate varying pallet lengths on a shared conveyor line.
Machine Changeover
Quickly adjust the stroke by up to 20 mm when switching product sizes, reducing downtime and avoiding cylinder swaps.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X650-20 the Right Cylinder?
Choose this 100 mm bore when a 80 mm bore (providing 3518 N push at 0.7 MPa) cannot move the load, but a 125 mm bore (8590 N) would be excessive. The 20 mm adjustment window is ideal for fine-tuning long-stroke product changeovers. To match an ISO 15552 replacement, confirm the 650 mm stroke, 20 mm adjust code, PT port threads, and standard carbon steel rod.
Because the 650 mm stroke is long, the 25 mm rod and M20x1.5 thread provide robust support, but an external guide is still required to prevent excessive side-loading. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ100 Adjustable Cylinder SAIJ100X650-20 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 5145 N of pull force. At 0.5 MPa, it delivers 3927 N push and 3681 N pull.
A rear external screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 650 mm down to 630 mm. This adjuster only sets the end position and does not lock the load without live air.
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