Airtac SCD Standard Cylinder SCD125X100S
The AirTAC Airtac SCD Standard Cylinder SCD125X100S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø32mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø125mm bore, 100mm stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ125 mm
- Rod (both ends)Ø32 mm
- Stroke100 mm
- Port sizePT1/2
- Rod configDouble rod (through)
- CushionAdjustable, 28 mm
About the Airtac SCD Standard Cylinder SCD125X100S
The SCD125X100S is a double-acting, double-rod pneumatic cylinder delivering identical push and pull force of 5734 N at 0.5 MPa (10321 N at 0.9 MPa). Its through-rod design, with a 32 mm rod extending from both ends, provides equal speed and thrust in each direction, making it ideal for applications requiring balanced motion or tooling mounted on the rear rod.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for contactless position feedback. With a 100 mm stroke, it operates within the standard range for the 125 mm bore, using adjustable air cushioning (28 mm cushion length) and PT1/2 ports for smooth deceleration.
Airtac SCD Standard Cylinder SCD125X100S Technical Specifications
| Model | Airtac SCD Standard Cylinder SCD125X100S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø125 mm |
| Rod diameter | Ø32 mm (both ends) |
| Stroke | 100 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| 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 – 500 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 (Ø125mm, double rod)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1169 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 SCD125X100S
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SCD125X100S Is Used
Two-Sided Actuation
The rod protruding from both ends allows a single SCD125X100S to push a load on the forward stroke and pull a separate fixture on the return, simplifying dual-action mechanisms.
Symmetric Pressing
With 10321 N of force available in both directions at 0.9 MPa, this cylinder is well-suited for pressing or clamping operations where the work must be engaged identically from either side.
Rear-Mounted Stroke Sensing
The integrated magnet allows a CMSG sensor to be placed on the rear rod end, using the rear rod's motion to signal end-of-stroke without interfering with the front tooling.
Is the Airtac SCD Standard Cylinder SCD125X100S the Right Cylinder?
Choose the SCD125X100S when your application needs symmetric force in both directions. At 0.5 MPa, its 5734 N output is a significant step up from the SCD100 bore (3681 N). If you need a higher force class, the SCD160 bore provides 9425 N at the same pressure. This double-rod unit is the right choice over a single-rod SC cylinder when you need to attach a rear stopper, sensor flag, or secondary tooling, or when you require better rod guidance than a single rod offers, though it is not a replacement for a fully guided cylinder under high side loads. For replacement, match the bore, 100 mm stroke, PT port thread, and the -S magnet option exactly with another AirTAC SCD model.
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 SCD125X100S FAQ
Because it is a double-rod cylinder, the push and pull forces are equal. The effective piston area is calculated by subtracting the 32 mm rod area from the 125 mm bore area. This results in a force of 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and 10321 N at the maximum operating pressure of 0.9 MPa.
Choose the SCD when you need identical force and speed in both directions, or when you require a rear rod extension. The rear rod can be used to mount a limit switch dog, a secondary tool, or a mechanical stop. The dual-rod support also provides better side-load resistance and anti-rotation than a single-rod cylinder, though it is not a substitute for an external guide system 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 SCD125X100S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.