Airtac SDAD Double Rod Slim Cylinder SDAD40X40
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X40 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 40mm stroke). The through-rod resists twisting and lets you drive a tool on one end while a switch or dog reads position on the other — with identical force in both directions.
- BoreØ40 mm
- Stroke40 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAD Double Rod Slim Cylinder SDAD40X40
The AirTAC SDAD40X40 is a compact double-acting cylinder featuring a 16 mm piston rod protruding from both ends of its riveted body. Because a rod occupies each chamber, the annular area is identical on extend and retract, yielding exactly 527.8 N of force at 0.5 MPa in both directions. This symmetric output is ideal for driving balanced loads without tweaking pressure regulators between strokes.
The through-rod geometry inherently resists twisting moments, letting you mount a work tool on one end and a dog or bracket on the opposite side simultaneously. End-of-stroke energy is managed strictly by a fixed NBR bumper that decelerates the piston, rather than an adjustable air cushion. Note this specific SKU lacks a piston magnet, so position sensing is not supported without switching to the -S variant.
Airtac SDAD Double Rod Slim Cylinder SDAD40X40 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X40 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| 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 | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Because a rod occupies both cylinder chambers, the effective area — and therefore the force — is identical in both directions. Specifications follow the official AirTAC SDAD datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Force uses the annular (rod-side) area on both strokes, so extend and retract match. Actual usable force is lower than theoretical due to friction. Size with a safety margin.
Model Code: Airtac SDAD Double Rod Slim Cylinder SDAD40X40
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rods (omit = female thread). |
Thread: PT standard. Related SDA-family variants: SDA (single rod), SSA/STA (single acting), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAD Double Rod Slim Cylinder SDAD40X40 Is Used
Gripper Jaw Sync
Drives opposing gripper fingers with equal 527.8 N extend and retract forces, ensuring perfectly centered clamping on delicate machined parts.
Transfer Pusher
Mounts a pusher blade on one rod end and a tracking dog on the opposite end, utilizing the anti-twist geometry for stable carton diversion.
Balanced Lift Station
Lifts a 26.9 kg vertical payload safely using the equal force both ways, preventing sagging or asymmetric drift during vertical transfer.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X40 the Right Cylinder?
When sizing this 40 mm bore, compare its bidirectional 527.8 N output at 0.5 MPa against adjacent models. Stepping down to the SDAD32 provides 345.6 N, whereas stepping up to the SDAD50 yields 824.7 N, giving you clear boundaries for adjusting your payload capacity.
This unit features a 40 mm stroke, PT1/8 air port, and female M8x1.25 rod-end threads on both ends. The through-rod design prevents rotation and enables dual-end actuation, but a plain cylinder will drift if air pressure drops or the valve centers. For load holding without live pressure, integrate an external rod lock or pilot-operated check valve, as the NBR bumper only decelerates near stroke end.
Quick checklist
- ✓ Need equal force both directions?
- ✓ Anti-rotation / dual-end mounting?
- ✓ Space for a rod that exits both ends
- ✓ Port/thread type (PT)
- ✓ 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 Leave clearance for the rod exiting both ends.
- check Avoid side load on either rod end.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAD Double Rod Slim Cylinder SDAD40X40 FAQ
The SDAD40X40 generates 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 108 kgf at 1.0 MPa. Because it is a double-rod cylinder, the push and pull forces are exactly equal in both directions. The maximum operating pressure is 1.0 MPa.
Yes, the through-rod design allows you to mount a tool or bracket on both ends simultaneously while resisting rotational twist. This specific SKU does not have a piston magnet, but choosing the -S variant enables sensing with AirTAC reed or electronic switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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