Airtac JSID Double Rod Cylinder JSID50X400
The AirTAC Airtac JSID Double Rod Cylinder JSID50X400 is a genuine double acting, double rod JIS-standard air cylinder with a Ø50mm bore and 400mm 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
- Stroke400 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 JSID50X400
Delivering 825 N of thrust in both directions at 0.5 MPa, this 50 mm bore double-rod cylinder uses a symmetric piston to ensure push and pull forces remain perfectly equal. The rod exits both ends, which provides a natural anti-rotation effect and allows you to drive two separate tools simultaneously. It yields a safe working load of about 495 N, making it suitable for lifting roughly 42 kg vertically with a 2:1 safety margin.
Built to JIS standards with an extruded hard-anodized aluminum profile barrel, this unit is noticeably shorter and more compact than a same-bore ISO 15552 cylinder. It features a G1/4 port and adjustable air cushions of 20.5 mm at each end. Please note this specific SKU lacks a magnet and cannot support CMSE or DMSE sensors; you would need the -S variant for position detection.
Airtac JSID Double Rod Cylinder JSID50X400 Technical Specifications
| Model | Airtac JSID Double Rod Cylinder JSID50X400 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 JSID50X400
| JSID | JIS-standard profile cylinder (double-rod type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×400 | 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 JSID50X400 Is Used
Twin-Spindle Drilling
Drives two opposing machining heads simultaneously with equal 825 N force, ensuring perfectly balanced part finishing without rotational twist.
Symmetric Transfer Arm
Uses the rear rod extension to mount a sensor cam or secondary pusher, keeping the primary load path centered and stable over the 400 mm travel.
Balanced Vertical Lift
Raises a 42 kg workpiece platform smoothly using the equal pull-side area, preventing the sagging often seen in single-rod setups.
Is the Airtac JSID Double Rod Cylinder JSID50X400 the Right Cylinder?
When sizing this double-rod unit, consider the neighboring bores: the 40 mm provides 528 N both ways, while the 63 mm offers 1402 N. The 50 mm hits a sweet spot at 825 N. A twin-rod design is the right call when your application demands anti-rotation guidance, symmetric load distribution, or back-end tooling. Mounting options include FA, LB, TC, TCM1, and TCM2. Because this model has a 400 mm stroke, you must account for side loads and use external guides to prevent rod bending over that extended length.
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 JSID50X400 FAQ
Because the rod passes through both covers, force is equal in both directions. It provides 825 N at 0.5 MPa and 1154 N at 0.7 MPa, with a theoretical maximum of 168 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, a plain double-rod cylinder will drift if air is lost or the valve is centered, as the adjustable cushion only decelerates the piston near the stroke ends. For a held vertical load, you must add an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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