Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 350mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke350 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S
The AirTAC SAIJ50X350-100-S is a double-acting, single-rod ISO 15552 profile cylinder with a rear stroke adjuster. It provides a 250-350 mm usable travel window from its 350 mm nominal stroke, letting you dial back the retract end-position by up to 100 mm during commissioning. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa.
This -S variant includes a magnet for position sensing with AirTAC CMSE (reed) or DMSE (electronic) switches mounted in the dual-side sensor grooves. The carbon steel rod features an M16x1.5 thread, and the body uses a PT tapered port. The rear adjuster acts purely as a mechanical stop to set travel limits and is not a load-holding lock.
Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 SAIJ50 Adjustable Cylinder SAIJ50X350-100S Is Used
Variable End-Stop Tuning
Dial in the exact 250-350 mm retract position on packaging machines without swapping out the entire cylinder body.
Product Changeover
Quickly reset the stroke end-position on a conveyor line when processing different package sizes or material lengths.
Machine Setup Calibration
Fine-tune the travel limit during initial commissioning to perfect the mechanical timing of automated assemblies.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50X350-100S the Right Cylinder?
Choose this 50 mm bore when you need variable end-stops for frequent product changeovers, avoiding the need to physically swap cylinders or bolt on external stops. If your application requires less force, stepping down to a 40 mm bore yields 628 N of push at 0.5 MPa. If you need more clamping power, a 63 mm bore provides 1559 N of push at 0.5 MPa.
Because the 350 mm stroke is relatively long, the M16x1.5 rod will experience greater leverage under side-loads; always use an external guide to prevent binding. For load-holding without live air pressure, select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead of relying on the adjuster. This SAIJ model uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). It 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 SAIJ50 Adjustable Cylinder SAIJ50X350-100S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. If operating at 0.7 MPa, the push force increases to 1374 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective travel from 350 mm down to 250 mm. This creates a 250-350 mm usable window for fine-tuning the end position without moving the cylinder mount.
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