Airtac JSID Double Rod Cylinder JSID50X250
The AirTAC Airtac JSID Double Rod Cylinder JSID50X250 is a genuine double acting, double rod JIS-standard air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 JSID50X250
Delivering 825 N of equal force in both directions at 0.5 MPa, this 50 mm bore double-rod cylinder drives tooling symmetrically without the twist risk of a single rod. The hard-anodized aluminum profile barrel keeps the JIS body shorter than an equivalent ISO 15552 unit, saving valuable machine space. A G1/4 port feeds the twin chambers, while adjustable 20.5 mm air cushions decelerate the piston smoothly at each end.
Because the rod passes through both covers, the effective area is identical on extension and retraction, yielding 1154 N at 0.7 MPa. This translates to a safe working load of about 495 N, or roughly 42 kg lifted vertically with a 2:1 margin. Note that this specific SKU lacks a magnet, so it cannot host CMSE or DMSE sensors without switching to the -S version.
Airtac JSID Double Rod Cylinder JSID50X250 Technical Specifications
| Model | Airtac JSID Double Rod Cylinder JSID50X250 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 JSID50X250
| JSID | JIS-standard profile cylinder (double-rod type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSID50X250 Is Used
Dual-End Transfer Pusher
Uses both rod ends to push and retract a workpiece on parallel conveyor lanes simultaneously, keeping the stroke perfectly synchronized.
Anti-Rotation Stamping Mount
Resists piston twist during a vertical stamping operation, maintaining precise tool alignment where a single rod might bind under offset loads.
Symmetric Gripper Actuator
Drives two opposing mechanical gripper arms from opposite ends of the same piston, ensuring equal clamping force in both directions.
Is the Airtac JSID Double Rod Cylinder JSID50X250 the Right Cylinder?
Size this 50 mm bore against its neighbors: the 40 mm yields 528 N both ways, while the 63 mm provides 1402 N, making the 825 N here a solid middle ground. Choose a double-rod configuration when your application demands anti-rotation stability, symmetric load paths, or the ability to mount a sensor cam on the back end. Mounting options include Basic, FA, LB, TC, TCM1, and TCM2. For this 250 mm stroke, ensure you provide external linear guidance to prevent side-loading damage. Remember that this non-magnetic version cannot accept position switches.
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 JSID50X250 FAQ
Force is equal in both directions because of the double rod: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and a theoretical maximum of 168 kgf at 1.0 MPa. The air port size is G1/4.
No, the adjustable 20.5 mm cushions only decelerate near stroke end; the piston will drift on air loss. Use an external rod lock or pilot-operated check valve for holding. Also, this non-S SKU lacks a magnet and cannot take CMSE/DMSE sensors.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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