Airtac SCD Standard Cylinder SCD50X350S
The AirTAC Airtac SCD Standard Cylinder SCD50X350S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø50mm bore, 350mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Rod (both ends)Ø20 mm
- Stroke350 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD50X350S
The SCD50X350S is a double-acting, double-rod pneumatic cylinder that outputs identical force in both directions because the 20 mm rod passes through both end caps. At a common 0.5 MPa line pressure, it provides a balanced 825 N of thrust whether extending or retracting, making it ideal for symmetrical tooling or two-sided actuation tasks.
This 50 mm bore model includes a built-in magnet (-S suffix), so CMSG, DMSG, or EMSG reed and solid-state sensors can be clamped directly onto the tie-rod barrel for reliable end-of-stroke or mid-stroke position feedback. The 350 mm stroke is well within the 1200 mm maximum for this bore, and the body length A(SCD) is 207 mm, giving a compact retracted envelope despite the through-rod design.
Airtac SCD Standard Cylinder SCD50X350S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD50X350S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 350 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| 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, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCD Standard Cylinder SCD50X350S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 50 | Bore size in mm. |
| ×350 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCD Standard Cylinder SCD50X350S Is Used
Two-Sided Transfer
The through-rod design allows tooling to be mounted on both ends, enabling a single cylinder to push a part into a fixture while simultaneously pulling a completed part out, doubling throughput in a compact shuttle station.
Rear-Mounted Sensing
With the integrated magnet (-S), a sensor can be placed on the rear rod extension to confirm the piston's home position, a clean solution when the front end is inaccessible or crowded with tooling.
Non-Rotating Pusher
The dual-rod support naturally resists rotation, making it suitable for pushing components into a press or aligning parts without the added cost of an external anti-rotation guide.
Is the Airtac SCD Standard Cylinder SCD50X350S the Right Cylinder?
Choose the SCD50 when you need equal push-pull force in a mid-range package. If your application requires more thrust, stepping up to the SCD63 delivers 1402 N at the same 0.5 MPa. For tasks where force is only needed in one direction, the single-rod SC50 is lighter and more compact. A double-rod cylinder offers better guidance than a single-rod type, but for significant side loads, a proper guided cylinder or external linear rail is still required.
For a drop-in replacement, match the 50 mm bore, 350 mm stroke, PT port thread, basic mounting, and the -S magnet option. At this 350 mm stroke length, ensure the load is guided and aligned to prevent rod bending or excessive bushing wear on the unsupported rear rod extension.
Double-rod checklist
- ✓ Need equal force / speed both directions?
- ✓ Rear rod for tooling, stopper or sensor flag?
- ✓ Better rod guidance / anti-rotation?
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Keep BOTH rod ends clear of side load and interference.
- check Adjust end cushion screws for smooth stops.
- check Use SCD mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCD Standard Cylinder SCD50X350S FAQ
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it outputs 825 N, at 0.7 MPa it outputs 1154 N, and at the maximum operating pressure of 0.9 MPa it delivers 1484 N in both directions.
Choose an SCD when you need equal force and speed in both directions, or when you want to use the rear rod for mounting a sensor flag, stopper bolt, or secondary tooling. The dual-rod bearing also provides better side-load resistance than a single-rod cylinder, though it is not a substitute for a fully guided actuator under heavy moment loads.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCD Double-Rod Cylinders
Request a Quote for Airtac SCD Standard Cylinder SCD50X350S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.