Airtac SCD Standard Cylinder SCD63X25
The AirTAC Airtac SCD Standard Cylinder SCD63X25 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, 25mm stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ63 mm
- Rod (both ends)Ø20 mm
- Stroke25 mm
- Port sizePT1/4
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD63X25
The SCD63X25 is a double-acting, double-rod pneumatic cylinder built for applications demanding identical thrust in both directions. At 0.5 MPa, this 63 mm bore unit outputs a balanced 1402 N on the push and pull strokes, a result of the 20 mm through-rod subtracting the same area from each piston side.
With a short 25 mm stroke and a body length A of 210 mm, it is a compact solution for confined spaces. The adjustable air cushion (28 mm length) decelerates the piston smoothly at both ends, and the M16x1.5 rod threads on each side let you mount tooling or sensors on the rear rod.
Airtac SCD Standard Cylinder SCD63X25 Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD63X25 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 25 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 SCD63X25
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 SCD63X25 Is Used
Reciprocating Clamp
The equal push-pull force and dual rod ends allow a clamp tool on one side and a confirmation sensor flag on the other, ensuring balanced, monitored gripping in a fixture.
Short-Stroke Ejector
A 25 mm stroke is perfect for ejecting small parts from a nest. The rear rod can act as a mechanical stop, preventing over-travel without extra brackets.
Symmetric Press Tool
Use the front rod for a press punch and the rear rod for a stripper plate, creating a self-contained two-sided actuation system from a single cylinder body.
Is the Airtac SCD Standard Cylinder SCD63X25 the Right Cylinder?
Choose the SCD63X25 when your mechanism needs equal, repeatable force in both directions over a very short travel. If the 1402 N output at 0.5 MPa is too light, the SCD80 bore steps up to 2268 N; for a lighter, more compact option, the SCD50 delivers 825 N. This double-rod model is ideal for symmetric tooling, but if you only need force from one end, a single-rod SC63 cylinder reduces the rear clearance requirement. For a direct replacement, match the 63 mm bore, 25 mm stroke, PT ports, and basic mounting style exactly.
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 SCD63X25 FAQ
The push and pull forces are identical. At 0.5 MPa it produces 1402 N, at 0.7 MPa it reaches 1962 N, and at the maximum operating pressure of 0.9 MPa, the force is 2523 N in both directions.
Choose the SCD when you need equal force and speed in both directions, or when you need to attach tooling, a sensor flag, or a mechanical stop to the rear rod. The through-rod also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided unit 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 SCD63X25
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.