Airtac SCD Standard Cylinder SCD63X450S
The AirTAC Airtac SCD Standard Cylinder SCD63X450S 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. Ø63mm bore, 450mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke450 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X450S
The SCD63X450S delivers identical 1402 N push and pull thrust at 0.5 MPa thanks to its through-rod design, where the 20 mm rod passes out both end caps. This symmetry eliminates force differentials during bidirectional moves, making it ideal for transfer shuttles and tooling that must perform work on both the extend and retract strokes. At 0.9 MPa, output reaches 2523 N each way.
With a 450 mm stroke and a body length A of 210 mm, this double-acting tie-rod cylinder provides generous travel for medium-reach tasks. The built-in magnet (-S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for non-contact end-of-stroke or mid-position sensing, giving you clean position feedback without external brackets.
Airtac SCD Standard Cylinder SCD63X450S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X450S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 450 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø63mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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 SCD63X450S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×450 | 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 SCD63X450S Is Used
Bidirectional Transfer Shuttles
The equal 1402 N force in both directions moves a shuttle or pallet between two stations with identical acceleration and deceleration profiles, simplifying pneumatic circuit design and tuning.
Rear-Mounted Stroke Sensing
The -S magnet and rear rod extension provide a clean location to mount a sensor flag or trip a DMSG switch, confirming full retraction without cluttering the front tooling area.
Symmetric Pressing & Clamping
Apply the same 2523 N clamping force at 0.9 MPa from either end of the cylinder. The through-rod improves bearing support, helping maintain alignment under repetitive cycling.
Is the Airtac SCD Standard Cylinder SCD63X450S the Right Cylinder?
Choose this 63 mm bore when your application needs roughly 1400 N of balanced force each way at standard plant pressure. If you can accept a lower force, the 50 mm bore SCD50 series provides 825 N at 0.5 MPa in a lighter package. For purely single-sided work where only the front rod is used, a standard SC63 single-rod cylinder offers a higher push force (1760 N at 0.5 MPa) from the same bore size. At 450 mm of stroke, ensure the dual-rod assembly is not subjected to significant side load; the extended rod length increases the moment arm on the bearings. For direct replacement, match the 63 mm bore, 450 mm stroke, PT ports, basic mount, and the -S magnet option to another AirTAC SCD63X450S.
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 SCD63X450S FAQ
Because the 20 mm rod extends through both ends, the effective piston area is identical on both sides. The force is 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at the maximum operating pressure of 0.9 MPa. Both directions produce the same output.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you need to mount tooling, a stop, or a sensor target on the rear rod. The dual-rod design also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided actuator under heavy side 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 SCD63X450S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.