Airtac JSID Double Rod Cylinder JSID50X125S
The AirTAC Airtac JSID Double Rod Cylinder JSID50X125S is a genuine double acting, double rod JIS-standard air cylinder with a Ø50mm bore and 125mm stroke, G1/4 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
- BoreØ50 mm
- Stroke125 mm
- Port sizeG1/4
- Acting typeDouble acting, double rod
- Rod threadM18×1.5
- CushionAdjustable, 20.5 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 JSID Double Rod Cylinder JSID50X125S
Delivering 825 N of thrust in both directions at 0.5 MPa, this double-acting double-rod profile cylinder uses a single piston with a rod exiting each cover to balance the load path. The twin rods prevent rotation and let you mount a sensor cam or secondary tool on the back end. It carries a built-in magnet for CMSE or DMSE switches that drop directly into the side sensor grooves.
Built to JIS dimensions, the extruded hard-anodized aluminum barrel is shorter and more compact than an ISO 15552 cylinder of the same 50 mm bore. It breathes through a G1/4 port and runs at 30-800 mm/s. With a safe working load of roughly 495 N, it is good for about 42 kg of vertical lift with a 2:1 margin. Note that a plain cylinder drifts on air loss; the adjustable cushions only decelerate near stroke end, so use an external rod lock for held loads.
Airtac JSID Double Rod Cylinder JSID50X125S Technical Specifications
| Model | Airtac JSID Double Rod Cylinder JSID50X125S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 mm |
| Acting type | Double acting, double rod |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
Theoretical Output Force (Ø50mm)
| Pressure | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 200 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
Model Code: Airtac JSID Double Rod Cylinder JSID50X125S
| JSID | JIS-standard profile cylinder (double-rod type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×125 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Where the Airtac JSID Double Rod Cylinder JSID50X125S Is Used
Twin-Tool Transfer
Drives a primary gripper on the front rod and a secondary pick cam on the rear rod for synchronized part handoff without adding a second actuator.
Anti-Rotation Press
Uses the dual rods to resist twisting moments during a 825 N pressing operation, keeping the tool face perfectly parallel to the workpiece.
Symmetric Divertor
Pushes a diverting flap from either side with equal 825 N force, ensuring consistent belt lane routing regardless of the incoming package orientation.
Is the Airtac JSID Double Rod Cylinder JSID50X125S the Right Cylinder?
This 50 mm bore sits between the 40 mm (528 N both ways) and the 63 mm (1402 N both ways) sizes, giving you 825 N at 0.5 MPa in either direction. Choose the double-rod layout when you need anti-rotation guidance, symmetric load distribution, or twin tooling operations. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. The -S suffix means the piston magnet is installed for CMSE/DMSE switches. For this 125 mm stroke, keep the load guided externally to avoid binding side loads on the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ 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 Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSID Double Rod Cylinder JSID50X125S FAQ
Because the rod passes through both covers, force is equal in both directions: 825 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical max of 168 kgf at 1.0 MPa. The air port is G1/4.
No. A plain double-rod cylinder will drift on air loss, and the adjustable air cushions only decelerate the piston near the stroke ends. To hold a suspended load safely, you must add an external rod lock or a pilot-operated check valve.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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