Airtac SCD Standard Cylinder SCD50X200S
The AirTAC Airtac SCD Standard Cylinder SCD50X200S 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, 200mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Rod (both ends)Ø20 mm
- Stroke200 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 21 mm
About the Airtac SCD Standard Cylinder SCD50X200S
The SCD50X200S is a double-acting, double-rod pneumatic cylinder that outputs identical force in both directions—825 N at 0.5 MPa—because the 20 mm rod passes through both end caps. This symmetry is ideal for applications needing balanced speed and thrust on the extend and retract strokes, such as operating a transfer mechanism where a rear-mounted sensor flag or stopper bolt is required. The built-in magnet (denoted by the 'S' suffix) allows CMSG or DMSG reed switches to clamp directly onto the tie-rod barrel for end-of-stroke sensing without external brackets.
With a 200 mm stroke, this cylinder stays well within the 1200 mm maximum standard stroke for the 50 mm bore. Its adjustable air cushion (21 mm length) decelerates the piston smoothly at both ends, reducing impact noise and vibration. The PT1/4 ports and M16x1.5 rod threads are standard, and the body length A(SCD) is 207 mm, making it a compact through-rod solution for dual-sided tooling.
Airtac SCD Standard Cylinder SCD50X200S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD50X200S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 200 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 SCD50X200S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 50 | Bore size in mm. |
| ×200 | 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 SCD50X200S Is Used
Two-Sided Transfer Shuttles
The equal push-pull force of 825 N at 0.5 MPa drives a transfer shuttle with perfect symmetry, while the rear rod can mount a secondary tool or a counterbalance weight for smooth, vibration-free linear motion.
Rear-Mounted Stroke Sensing
The built-in magnet on this SCD50X200S model allows a DMSG sensor to be placed on the rear end cap to detect the piston's home position, a clean setup that is impossible with a single-rod cylinder where the rear port occupies that space.
Anti-Rotation Pusher Stations
The dual-rod design provides inherent anti-rotation stability for a pusher plate, eliminating the need for a separate external guide in light-duty aligning or ejecting tasks where the 200 mm stroke is sufficient.
Is the Airtac SCD Standard Cylinder SCD50X200S the Right Cylinder?
Choose the SCD50 when you need the 825 N force class at 0.5 MPa. If your application requires more thrust, stepping up to the SCD63 bore provides 1402 N at the same pressure. For purely single-sided actuation where a rear rod is unnecessary, the standard SC single-rod cylinder is a simpler, more cost-effective choice. Remember that while the through-rod offers better guidance than a single rod, it is not designed to absorb heavy side loads—use an external guide rail or a guided cylinder for those conditions.
For a drop-in replacement, match the 50 mm bore, 200 mm stroke, PT port thread, and the SCD double-rod configuration. This SCD50X200S model also requires the replacement to have the built-in magnet feature to maintain sensor compatibility. The basic mounting style means no specific bracket is included, allowing you to reuse your existing FA, LB, or TC mounting accessories.
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 SCD50X200S FAQ
The forces are identical in both directions because the rod area is subtracted from both sides of the piston. At 0.5 MPa, the force is 825 N; at 0.7 MPa, it is 1154 N; and at the maximum operating pressure of 0.9 MPa, it reaches 1484 N.
You choose an SCD when you need to mount tooling or a sensor target on the rear rod, require perfectly equal force and speed in both directions, or want the improved bearing support and anti-rotation that a through-rod provides. If you only need to push from one side, the SC single-rod cylinder is a more economical option.
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 SCD50X200S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.